[Elecraft] K2 & transverter question

[Mike-WE0H]

Hi Don,

Wow that does present an issue now. I will see if I can find a suitable 
reference oscillator at one of those 4 freq's. Seems kind of odd IF 
freq's not having one at 10.0mc. Does anyone has a suggestion on what 
oscillator I could brew up that would stay on freq within 1 cycle for 
over 24 hours after warm up? That is the reason why I now run a oven 
oscillator because it never changes freq month after month and has zero 
drift. I run digital modes down there that won't tolerate even a 1 cycle 
drift. My oscillator's are a commercial assembly from old analog cell 
sites. Got a deal on them years ago and built my LF & MF station around 
them.

Thanks much,
Mike
WE0H



Don  wrote:
> Mike,
>
> The K60XV will not provide any advantage for you with that IF 
> frequency band.  The available IF frequencies for the K2 transverter 
> bands are limited to 7 MHz, 14 MHz, 21 MHz and 28 MHz.  These are 
> 'bottom of the band' frequencies and tuning will be upward from there.
>
> You can use the normal K2 BNC output (SO-239 if you have the KPA100 
> installed) and translate the actual transverter input frequency in 
> your head.  You may be doing that already with your Kenwood.
> If you really need to use the K60XV output, you will need to modify 
> your transverter to use one of the available IF frequencies.
>
> You will also not be able to have the K2 directly readout the 
> frequency in that input band, but if you do change your transverter to 
> use the K60XV, you might want to 'fool' the K2 by entering 50 MHz as 
> the RF band and ignore the first digit on the display to obtain the 
> proper frequency.
>
> In other words, you could use the K60XV if you changed the transverter 
> oscillator to 7 MHz instead of your current 3 MHz and reworked the IF 
> bandpass for 7000 to 7510 kHz, the K2 would tune from 7000 kHz to 7510 
> kHz to cover the input frequencies from DC to 510 kHz.  If you 
> selected 50 MHz as the RF band, you would see 50000.00 to 50550.00 on 
> the K2 display.
>
> 73,
> Don W3FPR

>
> Mike-WE0H wrote:
>> Building my K2 next week. I run 600 meters and use a homebrew 
>> transverter right now with my Kenwood HF rig. Going to build a new 
>> transverter for my K2 when it is finished. I ordered the transverter 
>> option. I need the K2 to function from 3.135mc to 3.510mc as I use a 
>> 3.0mc oven oscillator as my reference mixed with the HF radio's 
>> signal to get me on 2200, 1750 & 600 meters. I am licensed as a Part 
>> 5 station on those 3 bands. Will the K2 operate in that band at & 
>> below 80 meters? I only need the transverter ports to function, not 
>> the HF power amp.
>>
>> Many thanks,
>> Mike
>> WE0H
>>  
>