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K3 10Mhz IF questions with the latest beta

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Jim AB3CV

K3 10Mhz IF questions with the latest beta

Starting to setup for some LF up conversion with the new 10Mhz IF.

Settings:

XV1 on
XV1 RF 0
XV1 IF 10
XV1 PWR L .05
XV1 OFS 0.00
XV1 ADR trn1

When I exit the CONFIG menu the frequency shows 333.045.80. Seems odd...

P3 display shows 14.333.037.30 for the cursor location.

I would have thought the display would have read KHz with some reasonable
values and the P3 would likewise display the desired result.

I must be doing something wrong.

Suggestions?

jim ab3cv
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wayne burdick

Re: K3 10Mhz IF questions with the latest beta

Administrator

Hi Jim,

If you tune below "0.000.00" as indicated on the display, you encounter a leetle buglet not yet fixed. Try rotating the VFO clockwise until you get above 0.

Wayne
N6KR

On Feb 12, 2014, at 7:47 PM, Jim Miller <[hidden email]> wrote:

> Starting to setup for some LF up conversion with the new 10Mhz IF.
>
> Settings:
>
> XV1 on
> XV1 RF 0
> XV1 IF 10
> XV1 PWR L .05
> XV1 OFS 0.00
> XV1 ADR trn1
>
> When I exit the CONFIG menu the frequency shows 333.045.80. Seems odd...
>
> P3 display shows 14.333.037.30 for the cursor location.
>
> I would have thought the display would have read KHz with some reasonable
> values and the P3 would likewise display the desired result.
>
> I must be doing something wrong.
>
> Suggestions?
>
> jim ab3cv
> ______________________________________________________________
> 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

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Jim AB3CV

Re: K3 10Mhz IF questions with the latest beta

Just entered 0 for frequency via buttons and 0.490.00 (MHz) showed up on VFOA display.

Can't go below 490.

If I enter via buttons 1 as the frequency I get to 1.000.00 (presumably Mhz) but still can't dial below 490.

The 630M band will be 472-479Khz so that won't work.

Plus I was hoping this would work from 10 to 10.5Mhz to allow for SWL activity outside the 630M band.

I've got the general coverage filters.

Thanks

jim ab3cv

Jim AB3CV

Re: K3 10Mhz IF questions with the latest beta

Also switching to 160 and back again reverts to 334.076.00 odd display.

jim ab3cv (chasing V26M...)

Eric NO3M

Re: K3 10Mhz IF questions with the latest beta

Switch to the transverter band you setup using the BAND up/dwn buttons.
When you see 334.076.00, move the VFO clockwise to pass the 0.000 point
and continue upwards.... if you're headed for 475 kHz territory, set the
VFO to Course tuning to get there faster.

DON'T enter direct frequency, doing that will change the freq. of the
160M band slot, it just doesn't work the way you are expecting. That is
why when you move down after entering the freq. you hit a wall at 490
kHz. For now, if you have a frequency in the transverter band to QSY
to, move there with the VFO.

Running the 10 MHz IF here with dual diversity RX and TX. Currently
running a side-by-side digital mode TX test tonight around 475.5 kHz.

GL 73 Eric NO3M / WG2XJM

On 02/12/2014 11:09 PM, Jim AB3CV wrote:
> Also switching to 160 and back again reverts to 334.076.00 odd display.
>
> jim ab3cv (chasing V26M...)
>
>
>
>

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wayne burdick

Re: K3 10Mhz IF questions with the latest beta

Administrator

In reply to this post by Jim AB3CV

Jim,

You can't use FREQ ENT if XVn RF is set to 0, because there's a regular K3 band (160 m) that "captures" that range. You got 490 kHz when you entered 0 using FREQ ENT because that the lowest the K3 can tune on 160 m.

If you just switch to your 10-MHz transverter band, then rotate the VFO, you should be able to get to the desired frequency.

Wayne
N6KR

On Feb 12, 2014, at 8:06 PM, Jim AB3CV <[hidden email]> wrote:

> Just entered 0 for frequency via buttons and 0.490.00 (MHz) showed up on VFOA
> display.
>
> Can't go below 490.
>
> If I enter via buttons 1 as the frequency I get to 1.000.00 (presumably Mhz)
> but still can't dial below 490.
>
> The 630M band will be 472-479Khz so that won't work.
>
> Plus I was hoping this would work from 10 to 10.5Mhz to allow for SWL
> activity outside the 630M band.
>
> I've got the general coverage filters.
>
> Thanks
>
> jim ab3cv
>
>
>
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/K3-10Mhz-IF-questions-with-the-latest-beta-tp7584161p7584164.html
> Sent from the Elecraft mailing list archive at Nabble.com.
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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Jim Miller

Re: K3 10Mhz IF questions with the latest beta

That did it!

Now to connect up my little up converter.

Thanks!

Jim ab3cv

On Feb 13, 2014, at 1:05 AM, Wayne Burdick <[hidden email]> wrote:

Jim,

You can't use FREQ ENT if XVn RF is set to 0, because there's a regular K3 band (160 m) that "captures" that range. You got 490 kHz when you entered 0 using FREQ ENT because that the lowest the K3 can tune on 160 m.

If you just switch to your 10-MHz transverter band, then rotate the VFO, you should be able to get to the desired frequency.

Wayne
N6KR

> On Feb 12, 2014, at 8:06 PM, Jim AB3CV <[hidden email]> wrote:
>
> Just entered 0 for frequency via buttons and 0.490.00 (MHz) showed up on VFOA
> display.
>
> Can't go below 490.
>
> If I enter via buttons 1 as the frequency I get to 1.000.00 (presumably Mhz)
> but still can't dial below 490.
>
> The 630M band will be 472-479Khz so that won't work.
>
> Plus I was hoping this would work from 10 to 10.5Mhz to allow for SWL
> activity outside the 630M band.
>
> I've got the general coverage filters.
>
> Thanks
>
> jim ab3cv
>
>
>
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/K3-10Mhz-IF-questions-with-the-latest-beta-tp7584161p7584164.html
> Sent from the Elecraft mailing list archive at Nabble.com.
> ______________________________________________________________
> 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

Merv Schweigert

Digital interface boards

Noticed on epay site for sale a couple of old version
EA3BLQ interface boards and some other chips
for the K2..
In case anyone has been looking for these..

73 Merv K9FD/KH6

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Edward R Cole

Re: K3 10Mhz IF questions with the latest beta

In reply to this post by Jim AB3CV

Eric,

Thanks for the tip. I tried going with direct freq. enter and ended
up in one of my memory locations above 490-KHz (that I run in TEST
mode). I don't normally change band using the Band switch, since I
have favorite freq. in memory for all bands I use. Just stepping
down in bands with the BAND switch landed me at 0.000.00 KHz and
moving VFO-A cw frequency moved up to 472 continuously from
00.000.00. I left it on 472 and the radio will remember when I hit
the BAND switch button again.

I have a very prototype mixer for 630m so next I should try it
out! 1.5mw from the K3 is probably low as drive to the SBL mixer so
probably need a buffer (2N2222 will work). vers. 4.81 installed.

73, Ed - KL7UW
600m - 3cm
-------------
From: Eric NO3M <[hidden email]>
To: [hidden email]
Subject: Re: [Elecraft] K3 10Mhz IF questions with the latest beta
Message-ID: <[hidden email]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Switch to the transverter band you setup using the BAND up/dwn buttons.
When you see 334.076.00, move the VFO clockwise to pass the 0.000 point
and continue upwards.... if you're headed for 475 kHz territory, set the
VFO to Course tuning to get there faster.

DON'T enter direct frequency, doing that will change the freq. of the
160M band slot, it just doesn't work the way you are expecting. That is
why when you move down after entering the freq. you hit a wall at 490
kHz. For now, if you have a frequency in the transverter band to QSY
to, move there with the VFO.

Running the 10 MHz IF here with dual diversity RX and TX. Currently
running a side-by-side digital mode TX test tonight around 475.5 kHz.

GL 73 Eric NO3M / WG2XJM

73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
[hidden email]

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