K3 [Elecraft] transvertor mode question

Alexandr Kobranov kobranov at amoscz.cz
Fri Sep 21 09:15:23 EDT 2007


Hi Toby,

I do not believe that there is many such requests for having I/F TX/RX 
in segment from 30 to 50MHz. The reason is that dozen of standard RIGs 
are after some mods able to go from 1 to 30MHz without problems and a 
lot transvertor systems already made are counting with this. 
Additionally a lot HF rigs are "optimized" for some band(-s) - 14MHz or 
21MHz. There are sometimes better results then on the rest of bands.
And - as I believe is the case o K3 also - the modification for TX/RX in 
entire limits is more cheaper and technically easier.
But maybe I am wrong!

So want to know how this "problem" can be handled by K3 ans I know 
several other guys running serious VHF/UHF/SHF gears with a lot of 
interest in K3 performance.

So staying tuned for some K3 user comment or is anywhere 
OperationalManual to study - not found on Elecraft Web ? (and not 
disturb whole rest of world :-))

73!
Lexa, ok1dst

dj7mgq at muenchen-mail.de napsal(a):
> Hallo,
> 
>> Second question - maybe more general - is about TX possibilities outside 
>> standard HAM Bands. For example if my 2m transvertor is built for 26MHz 
>> (26MHz/144MHz instead of stadard 28/144).
> 
> I've also asked, a long time ago, about using "non-standard" IFs for
> transverters with the K3; my suggestion being somewhere between 30 and 50MHz. I
> never really got an answer and I wonder if the VFO in the K3 could handle low
> VHF IFs.
> 
> For RX I do not think that 26MHz should be a problem but for TX it very well may
> be, because AFAIK there are legal and moral issues with K3 transmit capability
> in the CB (and so called Free Band) frequency range.
> 
> I feel that allowing low power IFs outside of the HF bands with the transverter
> interface is a very good idea, e.g. an IF of 30 to 40 MHz would not conflict
> with a 10m station at the same QTH and is wide enough for the entire 70cm band
> in Europe. 
> 
> vy 73 de toby
> 


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