Wover 98:

"Your X brand radio would not trigger fail safe on my Y brand"

PCM is not panacea to interference between X brand and Y brand! Let me explain.

I did a practical test at the field recently. A club member has a top end Futaba computer radio with a Futaba PCM DC receiver. He was very proud of the systems alleged bullet proof capabilities.

He is on frequency X.

I have an Airtronics mid range computer radio with an Airtronics PCM receiver. Also on frequency X.

On the ground, he turns his Tx on in PCM transmission, I turn my PCM Rx on. Complete Lock out on my PCM Rx. Vice-versa - and the same thing happens.

This is not good. Where is the benefit? With the increasing use of PCM receivers, and the Tx's that can transmit in PCM, I now see little real safety enhancement in the use of this technology on the field.

I think Multiplex have realised this and moved on in a clever marketing move with their IPD receivers, also FMA. In a practical sense it seems these new breed PPM/FM receivers can do everything for the flyer the much vaunted PCM receivers can. And often at lower cost. And, as Harry has noted, these receivers can be used with any PPM/FM Tx, so they won't be orphaned if you jump radio camps.

fiery

**I do not have any association with Multiplex or FMA - I am just a happy flyer and PCM sceptic**

fiery