Oh interesting. I didn't consider that. I will see if I can hook the radio into my laptop directly, or try another recorder, though my other recorder does 44.1 KHz only, not 48 KHz like the manual says is ideal.
Thanks Paul.
73, John Brier KG4AKV
On Sun, Nov 19, 2017 at 2:11 PM, Paul Stoetzer [email protected] wrote:
Seems likely that some sort of audio filtering is going on in your recorder.
73,
Paul, N8HM
On Sun, Nov 19, 2017 at 2:07 PM, John Brier [email protected] wrote:
I made a cable to tap the 9600 data pin off my Kenwood and I'm trying to decode telemetry from AO-91.
I am having trouble getting a continuously clean reception, so I don't expect frames, which I'm not getting, but parts of the reception are fine and yet FoxTelem still shows a low S/R of 1.2, 1.5 at best. I am wondering if there is still some filtering going on. I notice the peaks of the "bits" are not flat like they are supposed to be according to the manual:
I am recording the audio off the radio into a Zoom H1 at 48,000 KHz 16bit wav.
Maybe I should try hooking the radio directly up to a computer into FoxTelem.
Here is my recording:
https://www.dropbox.com/s/ineqhoprz50ljl3/2017-11-19_-_1743_UTC_-_AO-91_-_FM...
Ideas?
73, John Brier KG4AKV _______________________________________________ Sent via [email protected]. 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: http://www.amsat.org/mailman/listinfo/amsat-bb