At 04:32 AM 5/1/2007, Pete Smith wrote:
>The TopTen decoders are sink type, while the RCS8-V requires source
>drivers, I believe - the difference is that TopTen supplies power to the
>relay box, and the decoder decides which relay gets ground;
There's no inherent polarity in the RCS-8V. You could easily run it
with a common hot, and open collector type drivers.
>supplies a common ground, and switches power to the correct relay. I think
>TopTen makes a source driver board, and if you have the electronic smarts
>you could build one yourself; in that case WX9T makes a BCD-10 band decoder
>board that only costs $20, and emulates the Top
>Ten very nicely.
I use a kit board from Velleman that has serial data input on two
wires (they have a RF remote too) and has 8 low power (1A) relays to
control a RCS8V.
>SO2R capability is a different issue - you'd need two band decoders and
>source drivers, another RCS-8V and either 6 A/B switches or some
>specially-built logic to make sure that both radios can't be connected to
>the same antenna. It doesn't come cheap!
>73, Pete N4ZR
>At 09:39 PM 4/30/2007, firstname.lastname@example.org wrote:
> >You can buy a Top Ten band decoder and use that to control your RCS-8V. If
> >you want to spent more money you can also purchase their relays.
> >John KK9A
> >To: email@example.com
> >Subject: [TowerTalk] Controllable Coax Switch
> >From: "Kelly Johnson" Date: Mon, 30 Apr 2007 14:15:06 -0700
> >List-post: <mailto:firstname.lastname@example.org>
> >I want to replace my RCS-8V remote switch. I need to be able to
> >switch 4 HF antennas. I don't need a remote switch, but would like a
> >switch that can be controlled automatically. SO2R capable would be a
> >plus. I'm looking for the cheapest solution. Any ideas?
> >TowerTalk mailing list
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