At one location I had an ongoing problem with gasfet preamp failures. Over time I suspected the failures were done on purpose (yeah people do those sort of things). .
I replaced the last blown preamp with a similar spec unit that contained internal rf bypass switching when transmit power is detected in the coax line. The system has been rock solid since the rf sense switching preamp was placed in service. No more in-line attenuator... and we can actually control the preamp from the site controller. If the preamp fails we can switch it off (out of line) while the service call is set up. cheers, skipp > "JOHN MACKEY" <[EMAIL PROTECTED]> wrote: > When the ARR pre-amp blows it becomes about a 40DB attenuator, > just like most other pre-amps >
