Joe,
The link you supplied was not available when I wrote my reply last
night (in Alaska 4 hours behind EDST).
That label is encouraging.
Since the basic K4 model has two direct conversion receivers perhaps
one can operate in duplex on a separate antenna. Would depend on
separate DSP and audio cktry being present.
The announcement refers to addition of VHF/UHF module (which I take
to be internal to the radio cabinet unlike current XV series).
Ref is likely the same EXREF module added to the synth as in the
K3&K3s. Overall freq stability will depend on the TCXO like it is in
the current K3/K3s if that is true.
I hope provision is made for export of baseband IQ from both Rx. I
take both main-IF and sub-IF from my K3 to two LP-Pan locked to the
same LO to make use of dual-polarity diversity reception on
2m-eme. Being able to run special sw using IQ input from the K4
would set it apart from most other radios.
I am not planning to buy a K4 during the initial roll out. I would
wait for the kit version K4D.
I have a venerable basic FT-736R that will do 144/432 duplex for the
current crop of satellites. Their is work on a geosta 5/10 GHz
hamsat that would use digital modulation and require a special
transceiver (that is beyond any current satellite radio). Issue with
such is finding cheap launch.
So quite happy with my upgraded K3 and KX3 (for now).
73, Ed - KL7UW
On 2019-05-17 11:43 AM, Edward R Cole wrote:
> I suspect not because only one ANT connector is designated VHF/UHF.
Look more carefully ... it appears that the XVTR IF IN jack is also
marked "V/U ANT 2". Might be enough to allow duplex on 144/432.
In addition, the rear panel marking does not designate ANT 4 as
VHF/UHF only so perhaps a software upgrade will allow use of other
antenna jacks for VHF/UHF.
<https://swling.com/blog/1c279a0e-ee1e-478f-8505-5fce675fb70a/>
73,
... Joe, W4TV
73, Ed - KL7UW
http://www.kl7uw.com
Dubus-NA Business mail:
dubus...@gmail.com
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