There is an issue in that there is no global standard for amateur FM. Some countries in the world use 5 kHz deviation FM with 20 or 25 kHz channel spacing while others use 2.5 kHz deviation and 10 or 12.5 kHz channel spacing. Trying to transmit a 5 kHz dev signal through a system designed for 2.5 kHz doesn't work too well.
Almost all transceivers produced in Asia are capable of transmitting either deviation since they sell to all markets. There's a setting in the menus to change transmitted deviation, it may be referred to as FM or FM-W for 5 kHz deviation and FM-N for 2.5 kHz deviation. 73 Trevor M5AKA On Sunday, 18 May 2014, 6:37, Tom schuessler <[email protected]> wrote: I tried the satellite four times today, the 17th, and wish I had used my cheap Chinese radio that has narrowband FM transmitter capabilities. From what I understand the the satellite losing the signal due to over deviation makes a lot of sense. Was able to trigger the ID on all the passes I tried with no sound from me but no Qs. I guess we all need to talk softly. Hope we have a few more chances to use this bird before it's orbit decays. 73 all Tom, N5HYP _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
