FO-29 and AO-7 are not FM birds
73, Gabe NJ7H/VE6NJH
On Oct 17, 2017 9:04 AM, "Andrew Rich" vk4tec@tech-software.net wrote:
I would have thought doppler would have killed a frequency dependant mode
Your sending a hf low noise mode over an FM bird ?
Nuts
Sent from my iPhone
On 17 Oct 2017, at 1:47 pm, Clayton Coleman kayakfishtx@gmail.com
wrote:
Some may think it is experimental but I personally find it very disruptive to use certain digital modes on satellites. It is more disturbing when the stations performing these "experiments" fail to minimize their station ERP to a reasonable level.
Tonight on FO-29 I witnessed first hand how disruptive it is when a station decides to experiment with MSK144 while others are trying to use the shared transponder resource.
Some of these modes are 100% duty cycle for periods, then switch off, and back on again in a sequence. This doesn't seem very compatible with your typical satellite transponder.
For the life of me I cannot figure out why someone would even think about attempting these modes on AO-7 when the transponder's more sensitive nature is common knowledge.
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