I doubt if anyone expects the receiver to survive if you hook the output of even a 10 watt transmitter directly to the receiver antenna connector. If the layout of a multi-transmitter site does not include consideration for substantial separation between antennas, there will be failures.
The K3/K3S receivers (sub and main) are protected by carrier-operated relays that shunt signals to ground in the event they are strong enough to cause damage. Of course any protective device can be defeated (or destroyed) if punished too hard. Successful multi-transmitter operation begins with a rational antenna layout considering the power levels involved. IMX, we've always used at least one wavelength between transmitters running 100 watts or so (250 feet on 80, 120 feet on 40, and so on) and we orient the antennas to minimize coupling. 73, Ron AC7AC -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of brian Sent: Friday, October 27, 2017 10:35 AM To: [email protected] Subject: Re: [Elecraft] Failing K3 at 3C0L I'm going out on a limb. I've heard that some other DXpeditions had K3 failures in the RX section. RX dead TX OK. Apparently, the protection circuitry was not enough in the close quarter multi-transmitter operations. It would be nice to know the details or if this or is just rumor. If this is so what in the field fixes could be done? Alternatively, what additional steps in such contemplated operation could be taken to further minimize such failures. 73 de Brian/K3KO ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
