Topband: OK1RP (KD9SV) Front end saver experiences - how much isolation should I expect?

[g3nkc]

Good morning all,Just before I departed to TO4K,  we had the possibility of an rx antenna, at the last minute.Some while ago, I obtained a pcb based on the OK1RP pcb artwork, which I threw together the day before my departure.I had proven the operation of the assembled pcb before I travelled, but the unit was not boxed, and I had to use flying leads off the pcb for final testing in situ.I found that the isolation obtained was about 4 s-units, which probably isn't good enough.  Actually our rx antenna anyway was not good enough ( too noisy), different story! I tested this by activating the ptt direct to the unit, and observing the signal reduction.I plan to mount the pcb in a die cast box, and coax to the pcb.The question, if anyone is using this design,  how much isolation do they see when on tx ?( currently used with my K3)73 Dave, G3NKC  (MD4K & TO4K op.)Sent from my Galaxy