Remote Antenna Switch

[Bob Peters]

Bob, I would stay away from the MFJ and go with
one of three but all require external runs of
line... The #1 is the AARAY Solutions box.
Expensive but worth it or #2 would be the DX
Engineering  with #3 being the AMERATRON Box... I
use it and have been super satisfied with it...
These by far have the lowest isolation of any
switch tested. Jack Sellmeyer test the Ameritron
at better than 85 db down on 28 MHz so you know on
75 that would be better than 100...My pennies
worth  LOL


Very Best 73's,
Bob W1PE
Mesquite,TX
http://www.w1pe.com
http://www.myhamshack.com/W1PE/
Blog




-----Original Message-----
From: Boat Anchor Owners and Collectors List
[mailto:BOATANCHORS at LISTS.TEMPE.GOV] On Behalf Of
Bob Jackson
Sent: Monday, October 26, 2009 9:47 AM
To: BOATANCHORS at LISTS.TEMPE.GOV
Subject: [BOATANCHORS-TEMPE] Remote Antenna Switch

Guys -

I'm in the market for a remote antenna switch of
the type that switches ports via a DC voltage
through a common coax feed line.

I've seen several advertised with MFJ being the
least expensive (there are other concerns there).
All seem to have the same, to me, undesirable
characteristic of requiring a constant DC voltage
to keep the selected relay "on" (all other ports
being DC grounded). Are there any switches out
there that employ latching relays that use, for
example, a "push on/push off" design. That is,
every application of DC causes the relay to change
states but once changed doesn't require DC to stay
changed? The "constant switch voltage" design
would seem to me to invite relay "chatter" as wear
sets in as well as some other unwanted
consequences.

Any advice, opinions, remarks, experience, etc.
will be welcomed. The engineering isn't difficult
so DIY isn't out of the question, but if there's
something suitable out there, why bother?

Thanks & 73 to all,

Bob  AG5X

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