Hmmm.....ok. This is more complicated than I thought

. Maybe there is a hardware and firmware issue and I'm not clear on the difference between TRT800 and TRT800H.
First, the empirical evidence. One of my friends has TRT800 with s/w 3.4 and I receive ES transmissions from him when he is in STBY. My other friend (and myself) have TRT800H (HW 5.0 SW 5.6) and we don't pick each other up when in STBY.
Second, an old TRT800 FUNKE manual says this:-
TRT800 / P/N 800ATC-(200)-(200)
Operation and Installation
Document-No: 03.2102.010.71e / Revision: 2.02 13
2.5 Transponder Mode selection
Press (repeatedly) to select from following Modes:
• STBY „Standby“
Transponder only responds to directly addressed Mode S
interrogations, squitter remains active.
If a ground switch is connected, actuation of this switch will cause
the transponder switch to standby mode. The manual for my TRT800H in the same section states that
ES is inactive when in STBY.
On ADS-B OUT, I have connected a GPS source to the TRT800H and am successfully broadcasting my position and altitude on ES. However I am not broadcasting my track which results in the position being shown on a receiving navigation tool (e.g. SKYDEMON) but with the aircraft icon always shown as NORTH up regardless of my track. I reported this to FUNKE who advise me that I need a software upgrade to resolve this bug and want to charge me a lot of money to do so

. Needless to say all my PAW P3I transmissions pass all of the information.
Regards, Ray