Bob,
That is a simple solution, but how do you handle the RF output of both
transceiver to the single RF in on the amplifier?
The only caution I can give of with a configuration like that is for the
operator who uses voice modes with VOX turned on.
Most ham mics are wired for VOX operation - in other words, the mics are
'live'. For those who use speakers too, the mic on the 'not in use' can
pick up the sound from the 'live' transceiver speaker and set it in
transmit mode.
The use of headphones will likely cause no problems, but the combination
of VOX ON with speakers live can cause a problem for voice modes.
My preference is for hard switching to eliminate a lot of "strange
happenings" - besides, I like to feel I am in control of such things.
Such a switching arrangement can be easily built, but there are several
SO2R boxes that will accomplish the same thing.
73,
Don W3FPR
On 11/5/2018 3:30 PM, Bob McGraw K4TAX wrote:
I basically do the same with different radios. The K3S is connected to
the KAT500 and then through the KPAK3AUX cable to the KPA500. The
other radio has a Amp Key output basically an open collector to ground
which I connect to the PA Key input. Either radio will key the KPA500
and no switching or changes required. Just cables and connectors. Adding
the KAT500 requires a second KPAK3AUX cable and slightly different
wiring configuration. However, with either radio, no other changes
required. Just be sure you have the correct drive power set and TUNE
power set for each radio before hitting the PTT switch.
All this is very easy to accomplish with the cables and connectors
provided by Elecraft. The worst part is that hams "over think" the
solution.
73
Bob, K4TAX
On 11/3/2018 1:21 PM, Ralph S. Turk wrote:
Hi all
I need to be able to key the KPA500 & KAT500 from both a Yaesu 1000mp
and my K3.
I assume (I know don't assume) I can use diodes to isolate both radios.
Any thoughts?
Ralph, W7HSG/AFA9RT
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to rmcg...@blomand.net
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to donw...@embarqmail.com
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com
