Reference to my email, I did not state I had an Ameritron. In fact I have
no remotely switched receiving antennas. All receive antennas are switched
in the shack. Come to my QTH and walk the field and woods and
see.....(Watch out for Deer ticks.) The Ameritron reference was to give an
idea what was wanted for an adaptor. Also, the adaptors are for a friend.
I used a reference that allowed a lot of speculation. I should have said
does anyone know where someone could purchase a female F fitting to PL-259
adaptor. ( ; > )
Thanks to all that helped by giving a place to make a purchase.
73
Bruce
----- Original Message -----
From: "Ronald Gorski" <R.Gorski@Astronautics.com>
To: "Tom W8JI" <w8ji@w8ji.com>; "Bruce" <k1fz@myfairpoint.net>;
<topband@contesting.com>
Sent: Tuesday, December 04, 2012 5:37 AM
Subject: Re: Topband: F fitting adaptors
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:topband-bounces@contesting.com] On Behalf Of Tom
W8JI
Sent: Tuesday, December 04, 2012 5:25 AM
To: Bruce; topband@contesting.com
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
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Topband reflector - topband@contesting.com
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Topband reflector - topband@contesting.com
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