[Icom] Frozen Send relay - 756

Mon, 27 May 2002 12:18:01 -0500

Actually, all the Icom manuals I have come in contact with say 16V DC/2 A
with a additional note that "if this level is exceeded, a large external
relay must be used." If that your correct, no external relay would be
necessary.  Clearly, it is misinformation and NO-ONE (I know) has ever
gotten a straight answer from Icom yet.  When I talked to them they said,
"Our transceivers are designed to operate with our amplifiers ONLY."  Adams
website pretty well explains the situation with Icom internal relays and the
confusion that exists.  Bottom line, an ounce of prevention is worth a pound
of cure.

Van,
K0KAV

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----- Original Message -----
From: "Matt Erickson" <[email protected]>
To: <[email protected]>
Sent: Monday, May 27, 2002 12:04 PM
Subject: Re: [Icom] Frozen Send relay - 756

> At 12:39 PM 5/27/02 -0400, you wrote:
> >Gary
> >         I kinda though that was the problem. I always suggest that a
> > relay be used regardless of make or model. Best insurance in the world.
I
> > think manufacturers should print this on the manual's cover in big red
letters.
>
> Would not do any good, because these same guys don't read the manual, it
> gets tossed into the box after the rig comes out, and is never looked at
again.
>
> It states clearly "inside" the manual that the limit on the keying relay
> is; 16vdc @ 0.2 A = 200mA.  If the keying relay of the amp is drawing
300mA
> @ 12vdc, it is still out of range. Even at 5vdc. if the key voltage is
> 24vdc @ 50mA, it is STILL out of range.
>
> Use an "interface" relay, they are cheap, easy to make, and good
insurance,
> just like he said.
> I have a circuit on my web site anyone can use/copy, etc. both open-frame
> relay and solid-state are covered.
> www.qsl.net/kk5dr/
>
> 73 de Matt KK5DR
>
> >Take Care
> >JV
> >
> >
> >----
> >Your Moderator: Dick Flanagan W6OLD, [email protected]
> >Icom FAQ: http://www.qsl.net/icom/
>
> ----
> Your Moderator: Dick Flanagan W6OLD, [email protected]
> Icom FAQ: http://www.qsl.net/icom/