Elecraft

Re: Elecraft Digest, Vol 205, Issue 13

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Sid Frissell

Re: Elecraft Digest, Vol 205, Issue 13

What happened to the K4 “ Owner s manual” mentioned frequently in the op manual.?

Sent from my iPhone

> On May 19, 2021, at 2:09 PM, [hidden email] wrote:
>
> Send Elecraft mailing list submissions to
> [hidden email]
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://mailman.qth.net/mailman/listinfo/elecraft
> or, via email, send a message with subject or body 'help' to
> [hidden email]
>
> You can reach the person managing the list at
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>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Elecraft digest..."
>
>
> Today's Topics:
>
> 1. Re: Funny K4 Story (Bill Frantz)
> 2. Elecraft CW Net Report (kevinr)
> 3. New: K4 software information page (Wayne Burdick)
> 4. K4 Operating Manual rev. C1 now available (Wayne Burdick)
> 5. K4 postings: Main Elecraft reflector vs. Elecraft-K4 at
> groups.io (Wayne Burdick)
> 6. Got cable? (Christopher A Kantarjiev)
> 7. Re: K3s Windows sound problem in Windoze (W8JH)
> 8. Re: K4 postings: Main Elecraft reflector vs. Elecraft-K4 at
> groups.io (Alan - G4GNX)
> 9. Re: K4 postings: Main Elecraft reflector vs. Elecraft-K4 at
> groups.io [Clarification] (Wayne Burdick)
> 10. Re: Funny K4 Story (Tom Azlin W7SUA)
> 11. Re: Trade: KX1, with extras, for W2 Wattmeter with extras
> (Dave Cole)
> 12. XG2 Manual (eric norris)
> 13. Re: XG2 Manual (Wes)
> 14. Re: XG2 Manual (Dick Dievendorff)
> 15. Re: Funny K4 Story (Jim Rhodes)
> 16. Re: Funny K4 Story (Tom Azlin W7SUA)
> 17. Re: XG2 Manual (Wes)
> 18. K3 Problem, VFO Noise While Rotating On 10 Meters (Randy)
> 19. K3 Problem, VFO Noise While Rotating On 10 Meters (Paul Kirley)
> 20. Re: K3 Problem, VFO Noise While Rotating On 10 Meters (Randy)
> 21. Re: Funny K4 Story (Jim Rhodes)
> 22. [K4] First Impressions of K4 SN122 (LONG!) (Rick Miller - N1RM)
> 23. XG1 crystal? (Frank Krozel)
> 24. Re: [K4] First Impressions of K4 SN122 (LONG!) (Wayne Burdick)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 16 May 2021 22:06:40 -0400
> From: Bill Frantz <[hidden email]>
> To: Elecraft List <[hidden email]>
> Subject: Re: [Elecraft] Funny K4 Story
> Message-ID:
> <[hidden email]>
>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
>> On 5/16/21 at 7:40 PM, [hidden email] (Alan Bloom) wrote:
>>
>> I believe the SWR meter in the transceiver is at the input of
>> the internal tuner, not the output.? Since it always reads
>> close to 1:1 when the tuner is engaged you may not notice if
>> the antenna has a high SWR.
>
> On the assumption that the K4 antenna tuner has similar
> capabilities to the one in the K3/K3S, it can tune anything. An
> antenna lying on the ground is child's play for these tuners.
> Tom said that he hooked up his spiffy new K4 and tuned the
> antenna. No wonder he didn't see a bad SWR. :-)
>
> 73 Bill AE6JV
>
> -----------------------------------------------------------------------
> Bill Frantz | Security is like Government | Periwinkle
> (408)348-7900 | services. The market doesn't | 150
> Rivermead Rd #235
> www.pwpconsult.com | want to pay for them. |
> Peterborough, NH 03458
>
>
>
> ------------------------------
>
> Message: 2
> Date: Sun, 16 May 2021 21:11:46 -0700
> From: kevinr <[hidden email]>
> To: Elecraft Reflector <[hidden email]>
> Subject: [Elecraft] Elecraft CW Net Report
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Good Evening,
>
> ? Conditions approached poor from worse.? However, I was able to work a
> few of you, especially on 20 meters.? Forty meters seemed barren.? RBN
> did report my signal in Central Canada.? Thankfully, propagation reports
> mirror my own.? One of these days propagation has to improve, it can't
> get much worse.
>
> ?? Spring weather reports were mild except for California where coastal
> storms kept things cool and wet.? Here warm weather brings hatch after
> hatch of biting flies.? I can gauge insect population by watching the
> hummingbird feeder.? When there are few insects it's level drops much
> faster.
>
>
> ? On 14050.5 kHz at 2200z:
>
> K0DTJ - Brian - CA
>
> K6XK - Roy - IA
>
> KL7CW - Rick - AK
>
> K4JPN - Steve - GA
>
> AB9V - Mike - IN
>
>
> ? On 7047.5 kHz at 0000z:
>
> K0DTJ - Brian - CA
>
> WM5F - Dwight - ID
>
>
> ?? Until next week 73,
>
> ????? Kevin.? KD5ONS
>
>
> -
>
>
> Each player gets six cards, except for the player on the dealer's right,
> who gets seven, except on Thursdays when they get five.
>
>
>
>
> ------------------------------
>
> Message: 3
> Date: Mon, 17 May 2021 07:54:58 -0700
> From: Wayne Burdick <[hidden email]>
> To: Elecraft Reflector <[hidden email]>
> Subject: [Elecraft] New: K4 software information page
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=us-ascii
>
> K4 software update is handled entirely at the radio itself. You can view the release notes there, too.
>
> You can now also see the release notes for the current production release on our K4 software page.
>
> Visit www.elecraft.com, then click on SUPPORT / SOFTWARE, and select K-Line / K4.
>
> 73,
> Wayne
> N6KR
>
>
>
> ------------------------------
>
> Message: 4
> Date: Mon, 17 May 2021 09:10:37 -0700
> From: Wayne Burdick <[hidden email]>
> To: Elecraft List <[hidden email]>
> Subject: [Elecraft] K4 Operating Manual rev. C1 now available
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=utf-8
>
> Revision C1 of the K4 operating manual can be found online at this link:
>
> https://ftp.elecraft.com/K4/Manuals%20Downloads/K4%20Built-In%20Operating%20Manual%20rev%20C1/K4BuiltInOperatingManualrevC1.html
>
> We?ll be updating the built-in manual (in the radio itself) in a future software release.
>
> 73,
> Wayne
> N6KR
>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Mon, 17 May 2021 09:49:16 -0700
> From: Wayne Burdick <[hidden email]>
> To: Elecraft Reflector <[hidden email]>
> Subject: [Elecraft] K4 postings: Main Elecraft reflector vs.
> Elecraft-K4 at groups.io
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=us-ascii
>
> The number of postings we're making about K4 operation, etc., has jumped of late. This is due to the increase in shipping rate.
>
> I find that it's not practical to double-post everything to both the Elecraft-K4 list and to the main Elecraft forum. So I'll be following these rules:
>
> - Major announcements (including this one :) will go to both. This includes:
>
> - documentation and software updates
> - K4-related product announcements
> - issue alerts (operational or hardware)
> - technical topics of broad interest
>
> - Day-to-day discussion supporting K4 user questions will go only to the Elecraft-K4 list.
>
> I've resisted any sort of list bifurcation in the past, but I believe it's called for in this case. Regular forum readers won't have to wade through so many narrowly focussed K4 threads, and Elecraft-K4 readers can be assured that no official Elecraft postings will be omitted from that list.
>
> 73,
> Wayne
> N6KR
>
>
>
> ------------------------------
>
> Message: 6
> Date: Mon, 17 May 2021 10:00:32 -0700
> From: Christopher A Kantarjiev <[hidden email]>
> To: [hidden email]
> Subject: [Elecraft] Got cable?
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> I'm cleaning out the garage; these will go out with the recycling this
> week if nobody wants them:
>
> Spool of CAT-5, about 100' yellow
> Spool of CAT-5, about 100' blue
> LMR-400 assembly, about 50', terminated with TNC males
> LMR-400 assembly, about 50', terminated with TNC male and N male
>
> All in Palo Alto.
>
> VY 73 de chris K6DBG
>
>
> ------------------------------
>
> Message: 7
> Date: Mon, 17 May 2021 11:48:45 -0700 (MST)
> From: W8JH <[hidden email]>
> To: [hidden email]
> Subject: Re: [Elecraft] K3s Windows sound problem in Windoze
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=us-ascii
>
> I received some PM responses and am back in business.
>
> It was suggested that I not rename the K3s USB ports so I will give that a
> try.
>
> My impression was that Microsoft left the ports alone while renamed but I
> have learned/proven that is not the case.
>
> It was suggested that they should be periodically updated by MSFT when not
> renamed so I will see how that goes.
>
> Thanks for the help offline.
>
>
>
> -----
> 73,
>
> Joe, W8JH
>
> K3s, KPA 500, KAT 500 and KX3 happy user.
> --
> Sent from: http://elecraft.365791.n2.nabble.com/
>
>
> ------------------------------
>
> Message: 8
> Date: Mon, 17 May 2021 20:26:56 +0000
> From: "Alan - G4GNX" <[hidden email]>
> To: "Elecraft Reflector" <[hidden email]>
> Subject: Re: [Elecraft] K4 postings: Main Elecraft reflector vs.
> Elecraft-K4 at groups.io
> Message-ID: <em39cb9929-8bd4-4b6b-bf4c-fa7a6027c687@g4gnx>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Thanks Wayne.
>
> I'm sure we all appreciate how busy you must be.
>
> It seems like a reasonable compromise and will help to keep K4 only
> subjects separated from other Elecraft product discussions.
>
> 73,
>
> Alan. G4GNX
>
>
> ------ Original Message ------
> From: "Wayne Burdick" <[hidden email]>
> To: "Elecraft Reflector" <[hidden email]>
> Sent: 17/05/2021 17:49:16
> Subject: [Elecraft] K4 postings: Main Elecraft reflector vs. Elecraft-K4
> at groups.io
>
>> The number of postings we're making about K4 operation, etc., has jumped of late. This is due to the increase in shipping rate.
>>
>> I find that it's not practical to double-post everything to both the Elecraft-K4 list and to the main Elecraft forum. So I'll be following these rules:
>>
>> - Major announcements (including this one :) will go to both. This includes:
>>
>> - documentation and software updates
>> - K4-related product announcements
>> - issue alerts (operational or hardware)
>> - technical topics of broad interest
>>
>> - Day-to-day discussion supporting K4 user questions will go only to the Elecraft-K4 list.
>>
>> I've resisted any sort of list bifurcation in the past, but I believe it's called for in this case. Regular forum readers won't have to wade through so many narrowly focussed K4 threads, and Elecraft-K4 readers can be assured that no official Elecraft postings will be omitted from that list.
>>
>> 73,
>> Wayne
>> N6KR
>>
>
>
>
> ------------------------------
>
> Message: 9
> Date: Mon, 17 May 2021 15:44:05 -0700
> From: Wayne Burdick <[hidden email]>
> To: Elecraft Reflector <[hidden email]>
> Subject: Re: [Elecraft] K4 postings: Main Elecraft reflector vs.
> Elecraft-K4 at groups.io [Clarification]
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=us-ascii
>
> Just to clarify: We *will* of course answer all K4 questions posted to Elecraft's regular forum.
>
> But threads originating on Elecraft-K4 (the other list) will be answered there, without being re-posted on the regular list.
>
> 73,
> Wayne
> N6KR
>
>
>
>> On May 17, 2021, at 9:50 AM, Wayne Burdick <[hidden email]> wrote:
>>
>> The number of postings we're making about K4 operation, etc., has jumped of late. This is due to the increase in shipping rate.
>>
>> I find that it's not practical to double-post everything to both the Elecraft-K4 list and to the main Elecraft forum. So I'll be following these rules:
>>
>> - Major announcements (including this one :) will go to both. This includes:
>>
>> - documentation and software updates
>> - K4-related product announcements
>> - issue alerts (operational or hardware)
>> - technical topics of broad interest
>>
>> - Day-to-day discussion supporting K4 user questions will go only to the Elecraft-K4 list.
>>
>> I've resisted any sort of list bifurcation in the past, but I believe it's called for in this case. Regular forum readers won't have to wade through so many narrowly focussed K4 threads, and Elecraft-K4 readers can be assured that no official Elecraft postings will be omitted from that list.
>>
>> 73,
>> Wayne
>> N6KR
>>
>
>
>
> ------------------------------
>
> Message: 10
> Date: Tue, 18 May 2021 08:44:01 -0700
> From: Tom Azlin W7SUA <[hidden email]>
> To: [hidden email]
> Subject: Re: [Elecraft] Funny K4 Story
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> I have an external meter on each of my antenna feedlines so I know the
> actual SWR for each antenna. Also see a difference in the reported power
> out on my (still) K3 versus the power reported on the external SWR/PWR
> meter.
>
> Tom w7sua
>
>> On 5/16/2021 4:40 PM, Alan Bloom wrote:
>> I believe the SWR meter in the transceiver is at the input of the
>> internal tuner, not the output.? Since it always reads close to 1:1 when
>> the tuner is engaged you may not notice if the antenna has a high SWR.
>>
>> Alan N1AL
>>
>>
>>> On 5/16/2021 5:10 PM, Wayne Burdick wrote:
>>> The K4 shows all four TX bar graphs simultaneously:? power, SWR, ALC,
>>> and compression. In addition you can select numeric display of power,
>>> SWR, supply voltage and current drain for the status area, which
>>> defaults to date/time.
>>>
>>> Wayne
>>> N6KR
>>>
>>> ----
>>> elecraft.com
>>>
>>>> On May 16, 2021, at 12:18 PM, Ray <[hidden email]> wrote:
>>>>
>>>> ?My K3 has a SWR display next to the RF Power meter in the Display.
>>>> So it Sounds like the K4 Does Not have that type of Display ?
>>>>
>>>> WA6VAB? K3
>>>>
>>>>
>>>>> On May 16, 2021, at 11:04 AM, Tom Doligalski via Elecraft
>>>>> <[hidden email]> wrote:
>>>>>
>>>>> ...
>>>>> I normally would have noticed the change in SWR, and realized that I
>>>>> had an antenna problem. But, of course, I had tuned the K4 for the
>>>>> first time on 80M when I received it!
>>>>>
>>>>> A learning moment (operator error?). Gonna try to check the antennas
>>>>> out a bit more frequently!
>>>>>
>>>>> 73, Tom W4KX
>>>>>
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>
>
> ------------------------------
>
> Message: 11
> Date: Tue, 18 May 2021 09:31:26 -0700
> From: Dave Cole <[hidden email]>
> To: [hidden email]
> Subject: Re: [Elecraft] Trade: KX1, with extras, for W2 Wattmeter with
> extras
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> The KX1 is no longer available, a person has exactly what I was looking
> for, and we are in the process of performing the trade.
>
> 73, and thanks,
> Dave (NK7Z)
> https://www.nk7z.net
> ARRL Volunteer Examiner
> ARRL Technical Specialist, RFI
> ARRL Asst. Director, NW Division, Technical Resources
>
>> On 5/16/21 12:52 PM, Dave Cole wrote:
>> Hi,
>>
>> I have an almost mint KX1, (recently back from service and checkup, with
>> paperwork indicating all is well with the unit, and it meeting specs),
>> which I am looking to trade for a almost mint condition W2 Wattmeter,
>> with one HF 2K coupler, (DCHF-2000), and one VHF 200 W coupler,
>> (DCV/U-200).
>>
>> I will pay insured express postage to you, and you pay insured express
>> postage to me.
>>
>> Rather than attach a set of photos to the list, if you are interested, see:
>>
>> https://wp.me/P285zq-2id
>>
>> For photos and more detailed description.
>>
>
>
> ------------------------------
>
> Message: 12
> Date: Tue, 18 May 2021 23:24:34 +0000 (UTC)
> From: eric norris <[hidden email]>
> To: Elecraft Reflector <[hidden email]>
> Subject: [Elecraft] XG2 Manual
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=UTF-8
>
> Dear Gang:
> I am giving my XG2 to a friend who restores tube gear.? I cannot find the instruction manual on the Elecraft site.? Does anyone have a link or a pdf?? Thanks!
>
> 73, Eric WD6DBM
>
> ?
>
> ------------------------------
>
> Message: 13
> Date: Tue, 18 May 2021 16:38:22 -0700
> From: Wes <[hidden email]>
> To: [hidden email]
> Subject: Re: [Elecraft] XG2 Manual
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> If you find one and/or a schematic I need one too.? My XG2 is dead on 20 meters.
>
> Wes? N7WS
>
>> On 5/18/2021 4:24 PM, eric norris via Elecraft wrote:
>> Dear Gang:
>> I am giving my XG2 to a friend who restores tube gear.? I cannot find the instruction manual on the Elecraft site.? Does anyone have a link or a pdf?? Thanks!
>>
>> 73, Eric WD6DBM
>>
>
>
>
> ------------------------------
>
> Message: 14
> Date: Tue, 18 May 2021 16:44:55 -0700
> From: Dick Dievendorff <[hidden email]>
> To: eric norris <[hidden email]>
> Cc: Elecraft Reflector <[hidden email]>
> Subject: Re: [Elecraft] XG2 Manual
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=utf-8
>
> ftp://ftp.elecraft.com/XG2/Manuals%20Downloads/E740084%20XG2%20Manual%20Rev%20G.pdf
>
> 73 de Dick, K6KR
>
>> On May 18, 2021, at 16:26, eric norris via Elecraft <[hidden email]> wrote:
>>
>> ?Dear Gang:
>> I am giving my XG2 to a friend who restores tube gear. I cannot find the instruction manual on the Elecraft site. Does anyone have a link or a pdf? Thanks!
>>
>> 73, Eric WD6DBM
>>
>> ?
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>
>
> ------------------------------
>
> Message: 15
> Date: Tue, 18 May 2021 18:45:45 -0500
> From: Jim Rhodes <[hidden email]>
> To: Tom Azlin W7SUA <[hidden email]>
> Cc: [hidden email]
> Subject: Re: [Elecraft] Funny K4 Story
> Message-ID:
> <CALhxr4bNksW3kj8UVwqw3LRXAnm9XHgYctOUb-U-qu_5g4=[hidden email]>
> Content-Type: text/plain; charset="UTF-8"
>
> With internal tuners on everything I have stopped using power/SWR meters on
> my rigs. If you are matching your antenna before you get to the meter the
> meter just won't tell you anything useful. I suppose I could put one
> between the KPA500 and the KAT500 But I don't use it often and the KPA has
> the barograph meters as well as the digital display anyway.
>
>> On Tue, May 18, 2021 at 10:44 AM Tom Azlin W7SUA <[hidden email]> wrote:
>>
>> I have an external meter on each of my antenna feedlines so I know the
>> actual SWR for each antenna. Also see a difference in the reported power
>> out on my (still) K3 versus the power reported on the external SWR/PWR
>> meter.
>>
>> Tom w7sua
>>
>>> On 5/16/2021 4:40 PM, Alan Bloom wrote:
>>> I believe the SWR meter in the transceiver is at the input of the
>>> internal tuner, not the output. Since it always reads close to 1:1 when
>>> the tuner is engaged you may not notice if the antenna has a high SWR.
>>>
>>> Alan N1AL
>>>
>>>
>>> On 5/16/2021 5:10 PM, Wayne Burdick wrote:
>>>> The K4 shows all four TX bar graphs simultaneously: power, SWR, ALC,
>>>> and compression. In addition you can select numeric display of power,
>>>> SWR, supply voltage and current drain for the status area, which
>>>> defaults to date/time.
>>>>
>>>> Wayne
>>>> N6KR
>>>>
>>>> ----
>>>> elecraft.com
>>>>
>>>>> On May 16, 2021, at 12:18 PM, Ray <[hidden email]> wrote:
>>>>>
>>>>> ?My K3 has a SWR display next to the RF Power meter in the Display.
>>>>> So it Sounds like the K4 Does Not have that type of Display ?
>>>>>
>>>>> WA6VAB K3
>>>>>
>>>>>
>>>>>> On May 16, 2021, at 11:04 AM, Tom Doligalski via Elecraft
>>>>>> <[hidden email]> wrote:
>>>>>>
>>>>>> ...
>>>>>> I normally would have noticed the change in SWR, and realized that I
>>>>>> had an antenna problem. But, of course, I had tuned the K4 for the
>>>>>> first time on 80M when I received it!
>>>>>>
>>>>>> A learning moment (operator error?). Gonna try to check the antennas
>>>>>> out a bit more frequently!
>>>>>>
>>>>>> 73, Tom W4KX
>>>>>>
>>>
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:[hidden email]
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to [hidden email]
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>
>
>
> --
> Jim K0XU
> [hidden email]
>
>
> ------------------------------
>
> Message: 16
> Date: Tue, 18 May 2021 17:15:23 -0700
> From: Tom Azlin W7SUA <[hidden email]>
> To: [hidden email], "[hidden email] >> Elecraft
> Reflector" <[hidden email]>
> Subject: Re: [Elecraft] Funny K4 Story
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> I put my meters between my KAT500 and the antennas as wanted to see the
> actual feedline SWR. Both my K3 and my KPA500 let me know if the KAT500
> is not able to match ( and of course the LED display on the KAT500).
>
> 73, tom w7sua
>
>
>
>> On 5/18/2021 4:45 PM, Jim Rhodes wrote:
>> With internal tuners on everything I have stopped using power/SWR meters
>> on my rigs. If you are matching your antenna before you get to the meter
>> the meter just won't tell you anything useful. I suppose I could put one
>> between the KPA500 and the KAT500 But I don't use it often?and the KPA
>> has the barograph meters as well as the digital display anyway.
>>
>> On Tue, May 18, 2021 at 10:44 AM Tom Azlin W7SUA <[hidden email]
>> <mailto:[hidden email]>> wrote:
>>
>> I have an external meter on each of my antenna feedlines so I know the
>> actual SWR for each antenna. Also see a difference in the reported
>> power
>> out on my (still) K3 versus the power reported on the external SWR/PWR
>> meter.
>>
>> Tom w7sua
>>
>>> On 5/16/2021 4:40 PM, Alan Bloom wrote:
>>> I believe the SWR meter in the transceiver is at the input of the
>>> internal tuner, not the output.? Since it always reads close to
>> 1:1 when
>>> the tuner is engaged you may not notice if the antenna has a high
>> SWR.
>>>
>>> Alan N1AL
>>>
>>>
>>> On 5/16/2021 5:10 PM, Wayne Burdick wrote:
>>>> The K4 shows all four TX bar graphs simultaneously:? power, SWR,
>> ALC,
>>>> and compression. In addition you can select numeric display of
>> power,
>>>> SWR, supply voltage and current drain for the status area, which
>>>> defaults to date/time.
>>>>
>>>> Wayne
>>>> N6KR
>>>>
>>>> ----
>>>> elecraft.com <http://elecraft.com>
>>>>
>>>>> On May 16, 2021, at 12:18 PM, Ray <[hidden email]
>> <mailto:[hidden email]>> wrote:
>>>>>
>>>>> ?My K3 has a SWR display next to the RF Power meter in the Display.
>>>>> So it Sounds like the K4 Does Not have that type of Display ?
>>>>>
>>>>> WA6VAB? K3
>>>>>
>>>>>
>>>>>> On May 16, 2021, at 11:04 AM, Tom Doligalski via Elecraft
>>>>>> <[hidden email] <mailto:[hidden email]>>
>> wrote:
>>>>>>
>>>>>> ...
>>>>>> I normally would have noticed the change in SWR, and realized
>> that I
>>>>>> had an antenna problem. But, of course, I had tuned the K4 for
>> the
>>>>>> first time on 80M when I received it!
>>>>>>
>>>>>> A learning moment (operator error?). Gonna try to check the
>> antennas
>>>>>> out a bit more frequently!
>>>>>>
>>>>>> 73, Tom W4KX
>>>>>>
>>>
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> <http://mailman.qth.net/mailman/listinfo/elecraft>
>>> Help: http://mailman.qth.net/mmfaq.htm
>> <http://mailman.qth.net/mmfaq.htm>
>>> Post: mailto:[hidden email]
>> <mailto:[hidden email]>
>>>
>>> This list hosted by: http://www.qsl.net <http://www.qsl.net>
>>> Please help support this email list:
>> http://www.qsl.net/donate.html <http://www.qsl.net/donate.html>
>>> Message delivered to [hidden email] <mailto:[hidden email]>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> <http://mailman.qth.net/mailman/listinfo/elecraft>
>> Help: http://mailman.qth.net/mmfaq.htm
>> <http://mailman.qth.net/mmfaq.htm>
>> Post: mailto:[hidden email] <mailto:[hidden email]>
>>
>> This list hosted by: http://www.qsl.net <http://www.qsl.net>
>> Please help support this email list: http://www.qsl.net/donate.html
>> <http://www.qsl.net/donate.html>
>> Message delivered to [hidden email] <mailto:[hidden email]>
>>
>>
>>
>> --
>> Jim K0XU
>> [hidden email] <mailto:[hidden email]>
>
>
> ------------------------------
>
> Message: 17
> Date: Tue, 18 May 2021 18:39:41 -0700
> From: Wes <[hidden email]>
> To: [hidden email]
> Subject: Re: [Elecraft] XG2 Manual
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Thanks,
>
>> On 5/18/2021 4:44 PM, Dick Dievendorff wrote:
>> ftp://ftp.elecraft.com/XG2/Manuals%20Downloads/E740084%20XG2%20Manual%20Rev%20G.pdf
>>
>> 73 de Dick, K6KR
>
>
>
> ------------------------------
>
> Message: 18
> Date: Wed, 19 May 2021 10:46:18 +0000 (UTC)
> From: Randy <[hidden email]>
> To: [hidden email]
> Subject: [Elecraft] K3 Problem, VFO Noise While Rotating On 10 Meters
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=UTF-8
>
> When I tune the VFO knob on 10 meters I hear a scratching type noise.? This problem only occurs on 10.
>
> There was an Elecraft mod that addressed this issue for early serial number K3's but my K3 is a later? unit with the mod built in at the factory during production.?Can anyone shed some light on this issue?? I assume that this is not normal operation.?73?Randy
>
> ------------------------------
>
> Message: 19
> Date: Wed, 19 May 2021 13:59:51 +0000
> From: "Paul Kirley" <[hidden email]>
> To: [hidden email]
> Cc: [hidden email]
> Subject: [Elecraft] K3 Problem, VFO Noise While Rotating On 10 Meters
> Message-ID: <emce5da2b2-c9af-4dda-b8ae-666913c3e58d@paul-pc>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Based on the description of your rig, you have the original synthesizer(s). The noise mod involved adding some resistors and diodes to the K3 main board at specific spots and making some firmware adjustments.
>
> On the assumption that you have the resistors and diodes already, per your description of your K3 vintage, here are the firmware comments from the mod instructions:
>
> **************************
> IMPORTANT: You must install the resistors and diodes as described above before changing the bus
> clock rate. Failure to do so will result in erratic behavior of your K3.
> 1. Download and install firmware revision 3.24 or later. Refer to the K3 software page for instructions.
> 2. IMPORTANT: Locate the CONFIG:VCO MD menu entry, and tap the 1 keypad switch until you
> see SPI 2; this selects the new bus clock rate. (The default setting is SPI 1.)
> *************************
>
> I will email you the mod instructions separately so that you can see where the resistors and diodes should be (although Elecraft may have relocated them in later production). Then you can proceed with the CONFIG setting.
>
> 73, Paul W8TM
>
>
> [Elecraft] K3 Problem, VFO Noise While Rotating On 10 Meters
> Randy w9zr at aol.com
> Wed May 19 06:46:18 EDT 2021
>
> When I tune the VFO knob on 10 meters I hear a scratching type noise. This problem only occurs on 10.
> There was an Elecraft mod that addressed this issue for early serial number K3's but my K3 is a later unit with the mod built in at the factory during production. Can anyone shed some light on this issue? I assume that this is not normal operation. 73 Randy
>
>
>
> ------------------------------
>
> Message: 20
> Date: Wed, 19 May 2021 14:10:34 +0000 (UTC)
> From: Randy <[hidden email]>
> To: [hidden email], [hidden email]
> Subject: Re: [Elecraft] K3 Problem, VFO Noise While Rotating On 10
> Meters
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=UTF-8
>
> Hi Paul?Thanks for the reply.?I have the upgraded SYN-3A synthesizer and the rig came from the factory with the resistor and diode mod installed.? The clock rate is set to SP2.?I should have mentioned that info in the original post.?73?Randy?In a message dated 5/19/2021 7:02:19 AM Pacific Standard Time, [hidden email] writes:?
> Based on the description of your rig, you have the original synthesizer(s).? The noise mod involved adding some resistors and diodes to the K3 main board at specific spots and making some firmware adjustments.?On the assumption that you have the resistors and diodes already, per your description of your K3 vintage, here are the firmware comments from the mod instructions:?**************************IMPORTANT: You must install the resistors and diodes as described above before changing the busclock rate. Failure to do so will result in erratic behavior of your K3.1. Download and install firmware revision 3.24 or later. Refer to the K3 software page for instructions.2. IMPORTANT: Locate the CONFIG:VCO MD menu entry, and tap the 1 keypad switch until yousee SPI 2; this selects the new bus clock rate. (The default setting is SPI 1.)*************************?I will email you the mod instructions separately so that you can see where the resistors and diodes should be (although Elecr
> aft may have relocated them in later production).? Then you can proceed with the CONFIG setting.?73, Paul W8TM??[Elecraft] K3 Problem, VFO Noise While Rotating On 10 MetersRandy w9zr at aol.comWed May 19 06:46:18 EDT 2021?When I tune the VFO knob on 10 meters I hear a scratching type noise.? This problem only occurs on 10.There was an Elecraft mod that addressed this issue for early serial number K3's but my K3 is a later? unit with the mod built in at the factory during production. Can anyone shed some light on this issue?? I assume that this is not normal operation. 73 Randy?
>
>
> ------------------------------
>
> Message: 21
> Date: Wed, 19 May 2021 09:56:48 -0500
> From: Jim Rhodes <[hidden email]>
> To: Tom Azlin W7SUA <[hidden email]>
> Cc: "[hidden email] >> Elecraft Reflector"
> <[hidden email]>, Jim Rhodes <[hidden email]>
> Subject: Re: [Elecraft] Funny K4 Story
> Message-ID:
> <CALhxr4bar54GVwbZ+Lo7gh5BJsfvvU=[hidden email]>
> Content-Type: text/plain; charset="UTF-8"
>
> Well a meter calibrated for a 50 ohm system will give you a relative
> indication, but accuracy will vary with the actual VSWR on the line. The
> further off of 50 ohms the less accurate it will be.
>
>> On Tue, May 18, 2021 at 7:15 PM Tom Azlin W7SUA <[hidden email]> wrote:
>>
>> I put my meters between my KAT500 and the antennas as wanted to see the
>> actual feedline SWR. Both my K3 and my KPA500 let me know if the KAT500
>> is not able to match ( and of course the LED display on the KAT500).
>>
>> 73, tom w7sua
>>
>>
>>
>>> On 5/18/2021 4:45 PM, Jim Rhodes wrote:
>>> With internal tuners on everything I have stopped using power/SWR meters
>>> on my rigs. If you are matching your antenna before you get to the meter
>>> the meter just won't tell you anything useful. I suppose I could put one
>>> between the KPA500 and the KAT500 But I don't use it often and the KPA
>>> has the barograph meters as well as the digital display anyway.
>>>
>>> On Tue, May 18, 2021 at 10:44 AM Tom Azlin W7SUA <[hidden email]
>>> <mailto:[hidden email]>> wrote:
>>>
>>> I have an external meter on each of my antenna feedlines so I know
>> the
>>> actual SWR for each antenna. Also see a difference in the reported
>>> power
>>> out on my (still) K3 versus the power reported on the external
>> SWR/PWR
>>> meter.
>>>
>>> Tom w7sua
>>>
>>> On 5/16/2021 4:40 PM, Alan Bloom wrote:
>>>> I believe the SWR meter in the transceiver is at the input of the
>>>> internal tuner, not the output. Since it always reads close to
>>> 1:1 when
>>>> the tuner is engaged you may not notice if the antenna has a high
>>> SWR.
>>>>
>>>> Alan N1AL
>>>>
>>>>
>>>> On 5/16/2021 5:10 PM, Wayne Burdick wrote:
>>>>> The K4 shows all four TX bar graphs simultaneously: power, SWR,
>>> ALC,
>>>>> and compression. In addition you can select numeric display of
>>> power,
>>>>> SWR, supply voltage and current drain for the status area, which
>>>>> defaults to date/time.
>>>>>
>>>>> Wayne
>>>>> N6KR
>>>>>
>>>>> ----
>>>>> elecraft.com <http://elecraft.com>
>>>>>
>>>>>> On May 16, 2021, at 12:18 PM, Ray <[hidden email]
>>> <mailto:[hidden email]>> wrote:
>>>>>>
>>>>>> ?My K3 has a SWR display next to the RF Power meter in the
>> Display.
>>>>>> So it Sounds like the K4 Does Not have that type of Display ?
>>>>>>
>>>>>> WA6VAB K3
>>>>>>
>>>>>>
>>>>>>> On May 16, 2021, at 11:04 AM, Tom Doligalski via Elecraft
>>>>>>> <[hidden email] <mailto:[hidden email]>>
>>> wrote:
>>>>>>>
>>>>>>> ...
>>>>>>> I normally would have noticed the change in SWR, and realized
>>> that I
>>>>>>> had an antenna problem. But, of course, I had tuned the K4 for
>>> the
>>>>>>> first time on 80M when I received it!
>>>>>>>
>>>>>>> A learning moment (operator error?). Gonna try to check the
>>> antennas
>>>>>>> out a bit more frequently!
>>>>>>>
>>>>>>> 73, Tom W4KX
>>>>>>>
>>>>
>>>> ______________________________________________________________
>>>> Elecraft mailing list
>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> <http://mailman.qth.net/mailman/listinfo/elecraft>
>>>> Help: http://mailman.qth.net/mmfaq.htm
>>> <http://mailman.qth.net/mmfaq.htm>
>>>> Post: mailto:[hidden email]
>>> <mailto:[hidden email]>
>>>>
>>>> This list hosted by: http://www.qsl.net <http://www.qsl.net>
>>>> Please help support this email list:
>>> http://www.qsl.net/donate.html <http://www.qsl.net/donate.html>
>>>> Message delivered to [hidden email] <mailto:[hidden email]>
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> <http://mailman.qth.net/mailman/listinfo/elecraft>
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> <http://mailman.qth.net/mmfaq.htm>
>>> Post: mailto:[hidden email] <mailto:
>> [hidden email]>
>>>
>>> This list hosted by: http://www.qsl.net <http://www.qsl.net>
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> <http://www.qsl.net/donate.html>
>>> Message delivered to [hidden email] <mailto:[hidden email]>
>>>
>>>
>>>
>>> --
>>> Jim K0XU
>>> [hidden email] <mailto:[hidden email]>
>>
>
>
> --
> Jim K0XU
> [hidden email]
>
>
> ------------------------------
>
> Message: 22
> Date: Wed, 19 May 2021 11:02:12 -0700 (MST)
> From: Rick Miller - N1RM <[hidden email]>
> To: [hidden email]
> Subject: [Elecraft] [K4] First Impressions of K4 SN122 (LONG!)
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=us-ascii
>
> I put SN122 through its initial paces today. Here are some of observations:
> Appearance and general behavior:
> 1. This is a very good looking radio. The front panel design looks great.
> 2. The rear panel has more room than the K3.
> 3. The BNC connectors protrude farther out the back panel than the K3, and
> look a little strange to me. (But who really cares what the back panel looks
> like!)
> 4. The touch screen is extremely easy to read in all lighting conditions
> that I've used so far (it's gorgeous!).
> 5. The touch response is very good, though every once in a while it seems to
> have to "think" a little before responding.
>
> Build quality:
>
> 1. The cabinet fit and finish are as good as I've seen. It's very solid and
> the finish is great.
>
> 2. The interior is very interesting. Most parts appear to be very cleanly
> integrated. The CPU has a bit of a "tacked on" appearance. I applaud
> Elecraft for not trying to design their own high performance processor
> board, but the interface cabling looks a little ad hoc. It all works, but I
> have to wonder how it would survive getting knocked around enroute to a
> Dxpediton.
>
> 3. The front headphone jack was completely dead on my radio, but the rear
> headphone jack was fine. It was pretty easy to figure out how to release the
> front panel (thanks to Wayne's excellent video on the 3D model of the K4).
> The front headphone jack attaches to its circuit board with a socket that
> plugs onto a 4-pin header. That connector was completely off the header.
> When I connected it, I noticed that the insertion force was almost nil, so
> it's likely that it came off during shipment. I slightly bent a couple of
> the header pins to provide a little more friction. When I got it back
> together it worked fine. I believe that it would be good to consider adding
> more physical restraint to that connection.
>
> 4. The pushbutton switches on the front panel are much more solid, with
> better tactile feedback than the K3. I like them much better.
>
> Operating impressions:
>
> 1. Rx audio seems to be less fatiguing than the K3.
>
> 2. Tx audio reports were very good (from trusted critical sources).
>
> 3. Tx audio compression seems to be very weak compared to the K3. Even at
> 30 (max setting), it seemed to do less than a setting of 10 on the K3. It
> might need some DSP attention.
>
> 4. Most of the UI is absolutely great. Things like setting EQ levels for Tx
> and Rx using a touch screen were a real dream-come-true. There are multiple
> ways to do many things, and there is a little bit of irregularity in the
> ways to do things. However, overall I think it is very easy to use given the
> complexity and huge variety of controls that are needed.
>
> 5. The spectrum display system is a work of art. I always found it necessary
> to have an external monitor on the P3 to make it really effective. In most
> cases, I feel that the spectrum display on the K4's built-in screen could
> stand alone. However, I'm hanging on to my external monitor because the
> ability to configure it independently of the built-in screen likely will
> open up many valuable use-cases for display management.
>
> 6. Data and CW decoders can run simultaneously on the A and B VFO
> frequencies. So this radio can actually copy two different QSOs at the same
> time. That's very cool. Also the CW decoder seems to work better than the
> K3's, though that's hard to quantify. One caveat - I believe using both
> decoders is effectively a "multi-channel decoder" as defined by some contest
> rules. You may want to check before enabling it during a contest to ensure
> it doesn't put you into the Assisted category if you don't want to be there.
>
> Station installation:
>
> 1. My goal was to disconnect my K3s/P3 pair, and then "drop in" the K4,
> making note of the changes that needed to be made. It turned out to be very
> easy to get it going in my station. Here's a quick summary of what I did:
> a. For CAT control, I moved the DE-9 from the P3 to the DE-9 on the K4,
> removing the daisy chain cable between the radio and the P3.
> b. The K-Pod changed from its original custom cable to a standard USB
> cable going to the back panel.
> c. The external monitor changed from a VGA connector on the P3 to an HDMI
> connector on the K4 (fortunately my monitor has an HDMI port).
> d. I added a (shielded) Ethernet connection.
> e. I removed the IF plumbing for the P3.
> Everything else was identical between the K3 and K4. That includes keying in
> and out, accessory connector going to KPA/KAT500, custom TX inhibit input,
> and Mortty FSK. Special shoutout to N6TV for the awesome Y-box! Since I
> used the RS-232 serial connection for control, I didn't have to change
> ANYTHING in N1MM to take control of the K4. It just worked! All I had to do
> was select the different sound card instantiation that appeared in windows
> to get data modes working. Actually, I also needed to select the correct
> inputs on the K4 for the different modes and set levels. But the transition
> from a fully integrated K3s/P3 to a fully integrated K4 was less than an
> hour, including full N1MM integration. There are so many different ways to
> integrate both the K3 and K4 that your mileage will almost certainly vary.
>
> 2. The K4 takes less room horizontally than the K3/P3 combo, but it is
> deeper (see attached photos). That actually helped me because the front
> panel ended up a little closer to me than the K3's did. I have a pretty
> deep desk, but if you have tight quarters in front of your K3, you may have
> to rearrange some things.
>
> One weird thing:
> 1. I noticed very shortly after I turned the radio on for the first time (AF
> gain at zero, no antenna connected) that I thought I had a ringing in my
> ears. When I turned off the radio it went away. It wasn't loud, it just
> felt like a very slight case of tinnitus. It was sort of like one of those
> high pitched tones that you try to guess if it's there during a hearing
> test. I noticed that it seemed to come and go as the display came up and
> went away. (I resisted the urge to hold my finger up and down as it came and
> went :) Then I noticed that it got fainter if I turned the display
> brightness down. Just to be sure I wasn't imagining it, I hooked a
> microphone up to my PC and Audacity, held it in front of the display, and
> then powered up the radio. I could see nothing in the time domain, but when
> I ran a spectrum on it, there was a very distinct spike at 10 kHz. The spike
> disappeared with the radio off. The "ham demographic" probably includes very
> few who could hear it, but I'm one of them. Just to put it in proper
> perspective, I'm that guy who during sound checks in church says "where is
> that squeal coming from?" and everyone else looks at me like I'm nuts. It's
> just barely on the edge of being annoying, but there is hopefully something
> that can be done to mitigate it for those of us that can still hear weak 10
> kHz audio. My guess is that it is a DC-DC boost converter somewhere in the
> display with a ringing inductor.
>
> Bottom line:
> While very reminiscent of the K3, this is NOT a K3. It sounds better on Tx
> and Rx and its UI is a whole new animal for Elecraft (in a good way!). It
> has far more connectivity and control options than the K3, which means you
> will have to invest some time to learn how the K4 thinks and acts. I waited
> exactly 2 years (to the day!) for this radio, and I can say that it was
> certainly worth it for me. Congratulations to Wayne and the whole Elecraft
> team for getting this radio out under some really tough conditions.
>
> 73, be safe, have fun!
>
> Rick Miller
> N1RM
>
> <http://elecraft.365791.n2.nabble.com/file/t246436/N1RM-K3.jpg>
> <http://elecraft.365791.n2.nabble.com/file/t246436/N1RM-K4.jpg>
>
>
>
> --
> Sent from: http://elecraft.365791.n2.nabble.com/
>
>
> ------------------------------
>
> Message: 23
> Date: Wed, 19 May 2021 14:36:57 -0500
> From: Frank Krozel <[hidden email]>
> To: elecraft <[hidden email]>, Elecraft
> <[hidden email]>
> Subject: [Elecraft] XG1 crystal?
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=us-ascii
>
> Anyone know where I can get a new 7.040 Crystal for my XG1?
> -73- Frank KG9H
> [hidden email]
>
>
>
>
>
>
> ------------------------------
>
> Message: 24
> Date: Wed, 19 May 2021 13:05:50 -0700
> From: Wayne Burdick <[hidden email]>
> To: Elecraft Reflector <[hidden email]>
> Subject: Re: [Elecraft] [K4] First Impressions of K4 SN122 (LONG!)
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=us-ascii
>
> [Re-posting my reply to the original post on groups.io]
>
>
>> On May 19, 2021, at 12:03 AM, N1RM - Rick Miller <[hidden email]> wrote:
>>
>> I put SN122 through its initial paces today. Here are some of observations:
>
> Thanks, Rick. My comments below.
>
>
>> 3. The BNC connectors protrude farther out the back panel than the K3, and look a little strange to me. (But who really cares what the back panel looks like!)
>
> Unlike the K3, the five BNC connectors on K4 have bushings that are used to physically and electrically secure the connectors to the rear panel. This is part of the overall noise-reduction strategy. It also provides very rigid mounting for the RF board.
>
>
>> 2. The interior is very interesting. Most parts appear to be very cleanly integrated. The CPU has a bit of a "tacked on" appearance. I applaud Elecraft for not trying to design their own high performance processor board, but the interface cabling looks a little ad hoc. It all works, but I have to wonder how it would survive getting knocked around enroute to a Dxpediton.
>
> Our goal here was to be able to adapt to future single-board-computer technology rather than be constrained to what's available today. Swapping boards would be a matter of adjusting mounting screw locations on the replaceable adapter bracket and at worst, replacing a couple of cables.
>
>>
>> 3. The front headphone jack was completely dead on my radio, but the rear headphone jack was fine. It was pretty easy to figure out how to release the front panel (thanks to Wayne's excellent video on the 3D model of the K4). The front headphone jack attaches to its circuit board with a socket that plugs onto a 4-pin header. That connector was completely off the header....
>
> We're going to improve the mating connectors. Thanks for finding and reporting this.
>
>
>>
>> 4. The pushbutton switches on the front panel are much more solid, with better tactile feedback than the K3. I like them much better.
>
> This is due to our use of real tact switches beneath the rubber in the K4. The K3 (and our other products with rubber switch matrices) uses carbon-dot contacts that rely on hysteresis in the rubber itself.
>
>
>> 3. Tx audio compression seems to be very weak compared to the K3. Even at 30 (max setting), it seemed to do less than a setting of 10 on the K3. It might need some DSP attention.
>
> Agreed. This is on our list.
>
>
>>
>> 4. Most of the UI is absolutely great...
>>
>> 5. The spectrum display system is a work of art...
>
>> 6. Data and CW decoders can run simultaneously on the A and B VFO frequencies...
>
> Thanks for these observations :)
>
>>
>> One weird thing:
>> 1. I noticed very shortly after I turned the radio on for the first time (AF gain at zero, no antenna connected) that I thought I had a ringing in my ears. When I turned off the radio it went away. It wasn't loud, it just felt like a very slight case of tinnitus. It was sort of like one of those high pitched tones that you try to guess if it's there during a hearing test. I noticed that it seemed to come and go as the display came up and went away. (I resisted the urge to hold my finger up and down as it came and went :) Then I noticed that it got fainter if I turned the display brightness down. Just to be sure I wasn't imagining it, I hooked a microphone up to my PC and Audacity, held it in front of the display, and then powered up the radio. I could see nothing in the time domain, but when I ran a spectrum on it, there was a very distinct spike at 10 kHz. The spike disappeared with the radio off. The "ham demographic" probably includes very few who could hear it, but
> I'm one of them. Just to put it in proper perspective, I'm that guy who during sound checks in church says "where is that squeal coming from?" and everyone else looks at me like I'm nuts. It's just barely on the edge of being annoying, but there is hopefully something that can be done to mitigate it for those of us that can still hear weak 10 kHz audio. My guess is that it is a DC-DC boost converter somewhere in the display with a ringing inductor.
>
> We'll definitely investigate whether it's a DC-DC converter on the front panel board or within the LCD itself. If there's a way to suppress the 10 kHz a bit, we'll find it.
>
>
>>
>> Bottom line:
>> While very reminiscent of the K3, this is NOT a K3. It sounds better on Tx and Rx and its UI is a whole new animal for Elecraft (in a good way!). It has far more connectivity and control options than the K3, which means you will have to invest some time to learn how the K4 thinks and acts. I waited exactly 2 years (to the day!) for this radio, and I can say that it was certainly worth it for me. Congratulations to Wayne and the whole Elecraft team for getting this radio out under some really tough conditions.
>
> Appreciate the feedback!
>
> 73,
> Wayne
> N6KR
>
>
>
>
>
>
>
> ------------------------------
>
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> http://mailman.qth.net/mailman/listinfo/elecraft
> You must be a subscriber to post.
> Elecraft web page: http://www.elecraft.com
>
> End of Elecraft Digest, Vol 205, Issue 13
> *****************************************

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