Mike Morris WA6ILQ wrote:
The lock-shut-through-its-own-contacts latching relay uses
power as long as it is activated.
As another gentleman pointed out, the magnetic latching
relay only uses power when the coil is activated (i.e. a
pulse to change the state of the relay).
I would want to use
On Behalf Of Mike Morris WA6ILQ
Sent: Friday, April 17, 2009 1:00 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Remote receiver suicide control
At 05:33 PM 04/16/09, you wrote:
Mike, Paul, Mike, Martin, and others...
Thanks for the ideas. I will try out a couple of them
RAMSEY KITS has a unit that is supposed to work from commands via your
telephone touch pad. It's about $39. You call the unit up, touch the
phone keys, and the dtmf commands can turn on and off devices plugged into
it. I wonder could this be converted to work on the input of a recvr,
accessed
RAMSEY KITS has a unit that is supposed to work from commands via your
telephone touch pad. It’s about $39. You call the unit up, touch the
phone keys, and the dtmf commands can turn on and off devices plugged
into it. I wonder could this be converted to work on the input of a
recvr,
At 02:27 PM 04/16/09, you wrote:
I am also working toward a multiple receiver voted system and have a
question. I was reading
http://www.repeater-builder.com/tech-info/votingcomparators.html
and wondering about how to implement a site suicide command where
power is disconnected from the entire
Paul,
A mechanical latching relay uses no power except when changing state, and could
be used to drop the power to the whole package.
Using some sort of crowbar to intentionally blow a fuse introduces new and
unpleasant failure modes.
73,
Paul, AE4KR
- Original Message -
From:
-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Remote receiver suicide control
RAMSEY KITS has a unit that is supposed to work from commands via your
telephone touch pad. It's about $39. You call the unit up, touch the
phone keys, and the dtmf commands can turn on and off devices
Mike, Paul, Mike, Martin, and others...
Thanks for the ideas. I will try out a couple of them and then make
a decision on exactly what method to go with. I had not thought of
using a latching relay. The idea of a husky relay or maybe a beefy
SCR to short the supply on the inboard side of a
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