Re: Elecraft Digest, Vol 201, Issue 38

[Tom & Barb Valosin]

Condensation in shack - yes, keeping the environment at a temp not lower
than 50 degrees F or 10 C is helpful. However - is the room insulated?
Insulation for walls, floor and ceiling? AND - importantly, utilize a
self cycling auto-draining (drain to exterior or covered sump)
de-humidification. Set humidity level between 40 an 50 percent. This is
optimum for the gear as well as human comfort and, importantly, mold
(mould) growth opportunity is greatly minimized. Our governments, the
military and many independent research organisations have repeatedly
found the optimum environmental conditions for human health and
efficiency to be 68 to 72 degrees F or about 20 to 22 degrees C and a
relative humidity of 40 to 45 percent. Why the military research into
this? Submariners, long distance military aircraft, sub-terranian
control centers, space flight.

I also supply this information to my Home Inspection Clients - "Home
Assessors" I believe our friends in the UK call them. Tom, WB2KLD


On 1/27/2021 5:48 PM, [hidden email] wrote:

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> Today's Topics:
>
>     1. Re: WTB: P3 Panadpter (Wes)
>     2. Re: K2.Unable to undertake VCO alignment. (Douglas Hagerman)
>     3. Re: Shack Equipment Storage (David Olean)
>     4. Re: Shack Equipment Storage (Alan - G4GNX)
>     5. Elecraft K4 question (Wayne Suite)
>     6. Re: Shack Equipment Storage (George Thornton)
>     7. Re: Shack Equipment Storage (Dennis Moore)
>     8. Re: Shack Equipment Storage (David Haines)
>     9. Re: MH2 mic and the K3 (Clark Macaulay)
>    10. Roofing filters and DSP bandwidth tuning (NJMike)
>    11. Re: Shack Equipment Storage (Rich NE1EE)
>    12. Re: Elecraft K4 question (Wayne Burdick)
>    13. Re: Elecraft K4 question (Wayne Suite)
>    14. Re: Roofing filters and DSP bandwidth tuning ([hidden email])
>    15. Re: Another Elecraft K4 question (Dave Cole)
>    16. Re: Elecraft K4 question (WILLIE BABER)
>    17. Re: Another Elecraft K4 question (Wayne Burdick)
>    18. Re: Roofing filters and DSP bandwidth tuning (Fred Jensen)
>    19. Re: K4 QSK (Rick Tavan)
>    20. Re: Roofing filters and DSP bandwidth tuning (Jim Brown)
>    21. Preventing Condensation (Steve Stutman)
>    22. Re: Shack Equipment Storage (Josh Fiden)
>    23. Re: VK4 (Jim Borowski)
>    24. Re: Roofing filters and DSP bandwidth tuning ([hidden email])
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 27 Jan 2021 10:00:55 -0700
> From: Wes <[hidden email]>
> To: [hidden email]
> Subject: Re: [Elecraft] WTB: P3 Panadpter
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> I never had a P3, but used an SDR-IQ running SpectraVue software as an
> alternative.? Of course it requires a computer but if you're logging on one
> already port sharing works fine.
>
> SpectraVue "knows" the Elecraft frequency conversion and offers perfect
> tracking, demodulation (if you want it and can stand the latency) and
> point-n-click tuning. My K3S is now semi-retired and the main rig is a TS-890
> with a built-in display which is adequate, but the SDR-IQ still has better
> resolution and the other features mentioned above,? (I couldn't wait any longer
> for a K4)
>
> Wes N7WS
>
> On 1/26/2021 6:06 PM, Paul GACEK via Elecraft wrote:
>> I realize many of us are scavenging for K3 related stuff but long story short I?m looking for a working P3 either with or without the VGA option.
>>
>> I also realize that Elecraft has an interest list but just not sure what timeframe (post 2021?) a P3 will be available.
>>
>> In 2019, I spent a fair amount of time building a LP SO2R SSB station using 2 sets of KX3/KX3/KXPA100 but have since moved on from that and trying a QRO approach based around my K3s.
>>
>> See details of my madness at https://nomadic.blog/2019/10/22/suitcase-dxpedition-so2r-why-drive-a-boring-bmw-m-series-when-you-can-have-a-ferrari/ <https://nomadic.blog/2019/10/22/suitcase-dxpedition-so2r-why-drive-a-boring-bmw-m-series-when-you-can-have-a-ferrari/>
>>
>> Contact me off list if you have a P3 you are will to part with or alternatively know where I might find one.
>>
>> Paul
>> W6PNG/M0SNA
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 27 Jan 2021 10:22:00 -0700
> From: Douglas Hagerman <[hidden email]>
> To: Elecraft Mailing List <[hidden email]>
> Subject: Re: [Elecraft] K2.Unable to undertake VCO alignment.
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=us-ascii
>
> I am suffering from a similar problem in the midst of applying the various upgrades. My BFO test numbers are good,
> 4917.13 kHz
> 4912.16 kHz
> 4.97 kHz range
>
> but when I try the VCO linearization process, I see 11090 flash and then get error 232. I have not checked the VFO against a reference frequency. I have tried two different crystals and several different L31 values.
>
> My planned next step is to assemble the RF probe and see if I can figure out what is going on.
>
> Doug, W0UHU.
>
>> From: M Bak <[hidden email] <mailto:[hidden email]>>
>>
>> Issue. Unable to undertake VCO alignment.
>
>
> ------------------------------
>
> Message: 3
> Date: Wed, 27 Jan 2021 12:42:11 -0500
> From: David Olean <[hidden email]>
> To: Joseph Shuman <[hidden email]>, Elecraft Mail Server
> <[hidden email]>
> Subject: Re: [Elecraft] Shack Equipment Storage
> Message-ID: <[hidden email]>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> I would worry about condensation. I live in New England. New England is
> the only part of the country except for the coastline in WA, where there
> is a positive water budget typically. In other words, more rain falls
> than is evaporated or used up.? My ham shack is 1/2 mile from my house
> and was unheated. It was hard on the equipment.? Very hot wx was not a
> problem but cold temps and then the arrival of warmer and moist air
> would produce water droplets all over the gear.? Transformers would stay
> very cold and the water would drip off of them when the temps warmed a
> little bit.? Anything that used high voltage was subject to explosions
> if you were foolhardy to turn them on. It was all due to the water.
>
> What I did was install a propane heater with a special thermostat that
> allowed operation down to 32 degrees. I set the temp to around 40 F.?
> That keeps most of the condensation at bay. I also put in a solar heater
> on a south facing outside wall, and it pumps warmer air inside if the
> Sun is out. On a sunny winter day in January it will be 50 degrees in
> the room during the day. I have had no trouble with this setup. I am
> just about through with my 1st 100 lb propane tank and January is just
> about finished, so the cost is not too bad. You must use a vented
> propane heater. The unvented ones, or portable K1 space heaters like
> Kerosuns etc all produce water vapor and are no good for what we want.??
> Maybe in a desert climate things will be different, but that is what
> works for me.
>
> I have an unheated room as well, but only keep rugged stuff there in
> winter. Homebrew KW amps etc seem to do OK. I would never leave a KX
> anything there however. Been there. Done that!
>
> K1WHS
>
> On 1/27/2021 10:18 AM, Joseph Shuman via Elecraft wrote:
>> There is a difference between stupidity and ignorance.  I claim ignorance.
>>
>> My shack is a room in a barn attic space, separate from the house, no HVAC so cooling is one window and heating is a space heater (when I am working the waves).  Otherwise storage is ambient temp in the room.  Winter temps typically down to low 20s, summer up to 90s.  Sunny summer temp in the shack gets up to 120.  My concerns are leaving the KX2 (#3007) and KXPA100 (#2802) in the shack and the effects of daily cycling the temp, especially in winter.  My ?internet research? (maybe an oxymoron?) has such varied opinions it is worthless.  What say you, my fellow Elecraft faithful?
>>
>> Keeping Watch-
>> shu
>> Joe Shuman, NZ8P
>>
>> Unless someone like you
>> cares a whole awful lot,
>> nothing is going to get better.
>> It?s not.        -Dr. Seuss
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> ------------------------------
>
> Message: 4
> Date: Wed, 27 Jan 2021 17:49:49 +0000
> From: "Alan - G4GNX" <[hidden email]>
> To: "Elecraft Mail Server" <[hidden email]>
> Subject: Re: [Elecraft] Shack Equipment Storage
> Message-ID: <em523e72f1-ae4b-4dfc-9c62-8659d4805d3c@g4gnx>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> My shack is in the attic of a single storey building in the UK. I have a
> similar setup with a roof window for ventilation and light. It can get
> up to 104 degrees in Summer, even with a small evaporative air
> conditioner in use. It doesn't normally get too cold in Winter because
> the room's fed by part of the main heating system.
>
> I leave a PC, network server, network hub and phone charger running
> 24/7. My K3, KPA500, KAT500, IC-9700, IC-7100 and a Wouxun multi-band
> plus all PSUs, rotator controllers, monitor screens stay there
> permanently (all switched off) and are turned on and used as necessary,
> several times a week. I have had no issues so far. ;-)
>
> BTW any would-be burglars reading this, don't bother - we have a very
> good security system, linked to the Police. :-D
>
> 73,
>
> Alan. G4GNX
>
>
> ------ Original Message ------
> From: "Joseph Shuman via Elecraft" <[hidden email]>
> To: "Elecraft Mail Server" <[hidden email]>
> Sent: 27/01/2021 15:18:04
> Subject: [Elecraft] Shack Equipment Storage
>
>> There is a difference between stupidity and ignorance.  I claim ignorance.
>>
>> My shack is a room in a barn attic space, separate from the house, no HVAC so cooling is one window and heating is a space heater (when I am working the waves).  Otherwise storage is ambient temp in the room.  Winter temps typically down to low 20s, summer up to 90s.  Sunny summer temp in the shack gets up to 120.  My concerns are leaving the KX2 (#3007) and KXPA100 (#2802) in the shack and the effects of daily cycling the temp, especially in winter.  My ?internet research? (maybe an oxymoron?) has such varied opinions it is worthless.  What say you, my fellow Elecraft faithful?
>>
>> Keeping Watch-
>> shu
>> Joe Shuman, NZ8P
>>
>
>
> ------------------------------
>
> Message: 5
> Date: Wed, 27 Jan 2021 12:04:39 -0600
> From: Wayne Suite <[hidden email]>
> To: [hidden email]
> Subject: [Elecraft] Elecraft K4 question
> Message-ID:
> <[hidden email]>
> Content-Type: text/plain; charset="UTF-8"
>
> Does the K4 cover the 2200m and 630m ham bands, like the flex radios do?
>
> Also when are the group 3 orders shipping?
>
> Thanks,
> Kd5spx

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