[Elecraft] K3s and DEMI transverter

[Mooneer Salem]

Hi Joe,

>From what I've been able to tell, for what most people use transverters for
(SSB/CW on the weak signal portions of VHF/UHF), 28MHz is perfectly okay.
Personally, I like choices, so I've considered getting a 10MHz IF if I ever
got deep into transverters. This would in theory allow full use of both 2
meters and 70cm with the same radio, if not some higher bands. Of course, I
haven't looked into it too closely to see whether 10MHz is even workable
given that there's also a 10MHz clock input on the Q5 transverters, so any
thoughts on that would be good.

Thanks,

-Mooneer K6AQ

On Wed, Jun 2, 2021 at 6:34 AM W8JH <jh at hoffmaninv.com> wrote:

> I am looking to add the DEMI (Q5) transverter to my K3s and have no
> experience with transverters other than the internal one in my KX3.  In the
> future, I may wish to progress to 2m EME as well.
>
> Here are some choices I need to make and I would appreciate any advice:
>
> Common IF vs Split IF.  I'm thinking split IF with a K3s?
>
> Common RF or Split RF.  Common RF for one antenna connection?
>
> IF drive level of -20 to 0dBm vs 0dBm to +20dBm.  I think the K3s
> transverter output is 0dBm so I'm not sure what to think here.
>
> PTT polarity low instead of high I'm thinking.
>
> High stability Local Oscillator vs. standard.
>
> I could get a custom IF and I think there is some slight advantage to a
> 14mHz custom but I'm guessing the 28mHz standard IF is good enough?
>
> Thanks in advance for any advice or references.
>
>
>
>
>
> -----
> 73,
>
> Joe, W8JH
>
> K3s, KPA 500, KAT 500 and  KX3 happy user.
> --
> Sent from: http://elecraft.365791.n2.nabble.com/
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