[amsat-bb] Re: Icom IC2720H Full Duplex
G8IFF/KC8NHF
nigel at ngunn.net
Fri Mar 21 07:36:40 PST 2008
Does the radio mute the audio or is the UHF receiver blocked by the
transmitter's third harmonic?
> On Thu, 20 Mar 2008 16:35:51 -0500, Kent K5KNT wrote:
>
>> I was trying to work AO-27 this afternoon...I thought the
>> IC2720H would operate in "Full Duplex",..transmit on one band while
>> simultaneously receiving on the other. I had my left band set on
>> the uplink of 145.850 and the right band set to the downlink of
>> 436.795 (adjusting for doppler). I was able to hear the downlink
>> just fine. When I tried to transmit on the left band (set as the
>> main band) the audio on the right band would mute. Thus, I was
>> unable to hear if I was hitting the satellite. I have the sub-band
>> mute feature set to off.
>>
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