PCS-Electronics

ive emailed you wiv the pictures etc, thanks.

im saying 4

that is without any extra resistors in place, it was how the board came.

problem still there, lowered the mod stage in the link bos, but it dosn't make the high pitched noise go. obviously we cant turn the mod righ toff in the link box, as we wont have any audio coming out.

we turned it down as far as we could, however the high pitched sound was still there.

any ideas ...

I put in a 22k, nothing, only audio, no rds what so ever, no high pitched sound etc, but no rds, only audio. Still no rds when i turn the rds level settings.

do you have that sound either side of your frequency also?

i will keep you imformed of my progress

Right first of all. I'm running a 150watt fm pll, transmitter on 102.4
linking it using a microwave (band x) link system.

Connected the rds to my pc, added all my stations info on to it.

Plug rds into link box, audio into the rds, and the rds out into the link box.

a very loud high pitched sound ...