[amsat-bb] Kenwood D72 on SO-50

Andrew Glasbrenner glasbrenner at mindspring.com
Sun Jul 5 02:52:04 UTC 2015

Turn Duplex on, set the volume balance all the way to receive side. Then if the audio mutes when you transmit, you are transmitting on the wrong band.

Sent from my iPhone

> On Jul 4, 2015, at 9:49 PM, Philip Jenkins <n4hf.philip at gmail.com> wrote:
> So, none of you has said a word about turning on the "duplex" feature at
> all.....do I just need to forget about setting it, and just deal with the
> dual VFOs?
> Thanks for the great suggestions I've gotten so far. :-)
> Philip N4HF
> On Sat, Jul 4, 2015 at 8:55 PM, Frank Krizan <frank.krizan at verizon.net>
> wrote:
>> For Philip and the group,
>> Here’s the suggestion that’s been floating around since 2011.  It stemmed
>> from a discussion with Keith Pugh, W5IU:
>>  I spent quite a bit of time with Keith Pugh, W5IU, of AMSAT, who also
>> owns a D72A.  We commiserated over the fact that the new radio doesn't
>> allow for separate PTT and Tune of the A and B bands.
>>                    We'd like to suggest that a future firmware update
>> offer a RADIO MENU Option for PTT which would toggle through:  NORMAL,
>> A=PTT/B=TUNE, A=TUNE/B=PTT.  The Band selected for TUNE would be flagged
>> with the standard solid "arrowhead" and the Band selected for PTT would be
>> flagged with a "flashing" "arrowhead".
>>                    This would allow for easier use of the radio for LEO
>> satellite work, especially when the download needs to be tuned.  Right now,
>> the operator needs to remember what Band is selected and ensure the correct
>> Band is chosen before changing the frequency, either via VFO or Memory
>> Channel.
>>                    It's very easy to get confused and change the uplink
>> frequency and, then, transmit on the downlink.  Having separate PTT/TUNE
>> would make this radio a lot more fun for satellite use.
>> Maybe someone’s listening out there who could help.
>> 73, Frank K5HS (ex KR1ZAN)
>>> On Jul 4, 2015, at 20:42, Frank Krizan <frank.krizan at verizon.net> wrote:
>>> Hi Philip,
>>> I’ve just gotten used to pressing the A/B switch to toggle the PTT/Tune
>> to the frequency I want to change.  It’s a pain. I usually program in
>> memories for AOS, AOS+, MID, MID+, and LOS.  And, once in a while, I change
>> the wrong channel or transmit on the wrong frequency.   I’ve suggested a
>> firmware change to everyone who will listen to offer a PTT selection and
>> TUNE selection so the operator doesn’t have to toggle the A/B; but, so far,
>> no success.
>>> If the D72A could also have smaller frequency steps and the ability

More information about the AMSAT-BB mailing list