[Elecraft] Elecraft 70cm transverter, K3 and repeater access tones?

AD6XY m.j.willis at rl.ac.uk
Tue Feb 17 02:53:54 EST 2009


This is not really a K3 issue, it is the same for all transverters. HF radios
and transverters don't often cover the entire 70cms band almost never the
entire 23cms band.

70cms in Europe covers 10MHz of bandwidth, from 430 to 440 MHz. In the USA I
understand it is more. A 2 MHz band segment 432-434 MHz will give you the
SSB and some of the FM section used in Europe, but it will not cover the
satellite allocation or repeaters.  The Microwave Modules range of
transverters used to cover this with a dual LO allowing a 1.6MHz offset for
our repeater shift.

There may be some merit in using 50MHz for the IF, it should be fairly easy
to redesign the XV432 for this by changing components. Perhaps one day
Elecraft may offer this as an option - along with K3 colour co-ordination
and complementary K3 embossed biscuits at Dayton.

Mike


wayne burdick wrote:
> 
> James,
> 
> The XV432 itself *does* cover the full 70-cm range. If you use it with 
> a rig that covers 28-32 MHz, you'll have this capability. But the K3 
> only covers 28-30 MHz.
> 
> 73,
> Wayne
> N6KR
> 
> 
>>> Thanks for the information.  I didn't realize that the XV432 didn't 
>>> cover
>>> the whole 70cm band.  This is good to know, as I intended to use the
>>> transverter to communicate with local 440 machines.  I suppose it 
>>> would be
>>> better for me then to go with the XV144, or just buy a 2m/440 base
>>> instead.
>>>
>>> 73,
>>> James KC2UEE
> 
> 
> ---
> 
> http://www.elecraft.com
> 
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