They might have been on "FleaBay" because someone blew the internal diodes?
73, Paul, AE4KR ----- Original Message ----- From: Bob To: [email protected] Sent: Wednesday, June 25, 2008 7:53 PM Subject: [Repeater-Builder] Bird Thruline Remote Power Sensor 4E100 Anybody have any info on this UHF power sensor? It is no longer in the Bird catalog and isn't even listed in their "obsolete" files. I picked up a couple off of fleaBay a while back and was hoping to use one for repeater remote power monitoring. Each has an N-connector input and output, and solder lugs for ground and what I assume are outputs for forward and reflected from which to measure voltage. What is mystifying me is that what I believe to be the forward port presents about 0.5VDC for about 80 watts input, while the reflected side presents a very similar 0.45V, all while transmitting to a dummy load. Measurement with a Bird 43 shows NO reflected power. Thoughts? Tnx in advance, Bob K5IQ
