Could the high side and low side be reversed? Maybe it came wrong from China.
---In Repeater-Builder@..., <jeremy_georges@...> wrote :
Folks,
I have an old eBay Chinese flat pack that I put on the bench to tune for a temporary use repeater. I can notch it down to 90dB just fine. But the insertion loss is horrible. I'm getting around 5dB of loss. I thought something was wrong with the SA/Tracking Generator and plugged it in to the service monitor to test before/after power output and sure enough, 5.4dB insertion loss. SWR is horrible for the actual pass frequency.
I don't think this got dropped (at least not that I know of). I hate to bash a cheap mobile duplexer from China, but I wondering if this has been other's experience of these knock off brand mobile duplexers?
The split is the same as factory...just a few Khz down.
Both sides are within a dB of each other.
-J
