With gush of adrenaline I decided to test FO-29 transponder !!
RTL- stick connected to UHF down-link antenna
Icom 910 connected to VHF up-link antenna .
The output power was adjusted to minimal value.
This first time to fire-up a rig beside the delicate dongle !!
My nose was more alert than my ears to detect burning smell.
With shaking feet I pushed the foot-switch by my little toe .
Nothing was burned or cracked except my eardrum.
An audio delay was noticed at the down-link ,it was so annoying and irritating .
It’s not echo-loop but marked delay .
With a handheld transceiver I've noticed the same delay .
This is a processing delay cause by the CPU processing time.
The processing delay was so remarked with the transponder down-link signal.
I will never use the Dongle anymore with voice sat .
The processing delay ruin the pleasure of the sat voice contact.
A short clip