Bruce, if you insist on using the Ameritron, PL259 to F adapters are available at Tower Electronics in Green Bay, WI They have an online catalog. Ron N9AU
-----Original Message----- From: Topband [mailto:[email protected]] On Behalf Of Tom W8JI Sent: Tuesday, December 04, 2012 5:25 AM To: Bruce; [email protected] Subject: Re: Topband: F fitting adaptors > When using a Ameritron remote antenna switch with SO-239 fittings, > does anyone know a supplier for female F fitting to PL-259 adaptor ? > > Thanks, > 73 > Bruce-K1FZ Bruce, IMO, you have the wrong switch. A transmitting type high-power switch is a terrible device for receiving. The larger the relays (has a general rule) the greater the problem, and it has nothing to do with sealed (enclosed) or unsealed (open) relays. High current relays are very problematic when only used at low power. The problem surrounds the large contact area and lack of wetting currents, and no significant voltage and current ever being applied to burn through any film on the contact. There are hundreds of papers by relay manufacturers or others detailing this problem, and it even occurs with brand new sealed or enclosed relays. The only high power relays immune to this issue are vacuum type relays. I think you are heading for long term problems with adaptors and a transmitting switch. 73 Tom _______________________________________________ Topband reflector - [email protected] _______________________________________________ Topband reflector - [email protected]
