CQ-Contest
[Top] [All Lists]

Re: [CQ-Contest] ICOM-amp. keying

To: Clive Whelan <clive.whelan@btinternet.com>
Subject: Re: [CQ-Contest] ICOM-amp. keying
From: MikeR <nf4l@nf4l.com>
Date: Mon, 13 Jun 2005 20:36:53 -0400
List-post: <mailto:cq-contest@contesting.com>
Clive -
My PRO II manual says the relay can handle 16V @ 2 amps. I saw a lot of stuff 
on the web 
indicating that was a misprint, and the specs were much lower. I use a buffer. 
It's cheap 
insurance. Take a look here: http://www.qsl.net/icom/auxrelay.html
Adam is a recognised ICOM guru.
73, Mike NF4L
Clive Whelan wrote:
> Hi list
> 
> Slightly off topic, but not presently subscribed to an ICOM reflector, so
> please excuse.
> 
> I recently acquired an ICOM7400 ( =746PRO in U.S.A.), ostensibly for VHF,
> but it seems to quite a nice HF rig, even for contest work. So I thought I
> would install it as the left(=RUN) radio in the SO2R set up, to give it a
> real work-out. So far so good, but I have a potential problem with
> interconnection to my Alpha 78. The spec on the ICOM amp. switching is max.
> 16v at 500mA, an enormous current, but the Alpha measures 20 volts in key
> up, which is above spec. of course.
> 
> I have previously switched the Alpha from both an FT1000MP and a TS870 with
> no trouble, but don't want to take any chances. So I wonder, has anyone
> already done what I am proposing, and found it to be safe, or otherwise? I
> wonder what the 756PRO spec. is in this regard, of which there must be a lot
> in use. Info. appreciated.
> 
> 
> 73
> 
> 
> Clive
> GW3NJW
> 
> _______________________________________________
> CQ-Contest mailing list
> CQ-Contest@contesting.com
> http://lists.contesting.com/mailman/listinfo/cq-contest
> 


_______________________________________________
CQ-Contest mailing list
CQ-Contest@contesting.com
http://lists.contesting.com/mailman/listinfo/cq-contest

<Prev in Thread] Current Thread [Next in Thread>