The 910 is generally very effective at filtering out harmonics from the transmitter. However, harmonics can be generated beyond the transmitter by poor connections, bad feedlines, or a damaged antenna. Check your entire antenna system to make sure there are not any problems.
73,
Paul, N8HM
On Fri, Mar 27, 2020 at 12:59 PM Roy Dean via AMSAT-BB amsat-bb@amsat.org wrote:
All,Has anyone else had the problem of not hearing your own downlink when working SO-50? In the past I was able to hear myself, but lately I cannot not. I don't know if I change some setting or that the Icom is going bad. Thanks for any help. I appreciate it in advance. Jim, Ke4kol
Jim,
With SO-50, especially, this is very common. The 2m uplink has a harmonic very close to the downlink, which if not filtered out, can wipe out your local downlink whenever you are transmitting. I'm not familiar with the 910 enough to know how well it does at this, though.
You were getting in fine this morning, though (not sure if you copied my QSL)!
--Roy K3RLD _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb