[Elecraft] K3+XV144+XV432

K8TB k8tb at bosscher.org
Mon May 28 22:11:17 EDT 2007


David,

    I don 't think that for now Elecraft is going to come out with K3 
version xvtrs. Maybe in the future. But their existing xvtrs are among 
the best. However, they are meant for a 28 Mhz IF, and therein lies a 
"problem". Normally, 28 MHz would become 144.0, so the K3 would need to 
go 30.0 Mhz to get 146.00, for satellite work. The ten meter band stops 
at 29.7 MHz of course. So this one is a simple firmware change. The real 
problem in on 432, where 28 MHz will be 432, so a 435.3 sat signal would 
be 31.3 MHz. I don't know if Elecraft will have firmware to let this 
happen at the xvtr stage (1 milliwatt). What I have already looked at is 
having two different crystals, with their own "tweaking" circuitry, one 
for 432, and one for 435. The K2 has become a favorite IF rig for many 
of the microwave boys, and I'm sure the K3 will be right there also.

    Here is the long term deal. I know Aptos will take care of the 
problem. I believe that the K3 will became a favorite of many satellite 
operators, and microwave folks. Heck, a favorite for everyone!. As such, 
requests and concerns like this will be added to the 500+ item wish list 
that I am sure exists right now. That is one continually amazing thing 
about Elecraft, how they truly respond to what the customers want.

    Tom K8TB



David wrote:
> Hello All,
>
> Can anyone please tell me the expected frequency ranges when using a K3 and 
> KXV3 transverter option with the XV144 and XV432 transverters?  Being a 
> satellite enthusiast I would need the K3+XV144 to operate from 145.8 to 
> 146MHz and the K3+XV432 to operate from 432 to 438MHz.  Add another 2MHz on 
> top to each to work the local FM repeaters would be a bonus.
>
>   




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