[Icom] Frozen Send relay - 756

John L Merrill [email protected]
Mon, 27 May 2002 20:00:02 -0400


Chris BONDE wrote:

> On page 19 of my manual 'Connecting a non-ICOM linear amplifier' 
> states, ' ...  the SEND relay are 16V DC 2 A.  ... '
> I used my short-shighted eyes without glasses to read.   This is why 
> my arithmetic teacher said, 'Always write a decimal fraction with a 
> zero unit.  Otherwise, it is not a number and can be confused.'  That 
> is .2 is not a number!   0.2 is a number.
>
> Chris opr VE7HCB
>
>
> At 03:48 PM 2002-05-27 -0500, you wrote:
>
>> Look Closely - I bet is says .2amps - I can't see anymore either -
>> George
>> W4LT
>> ----- Original Message -----
>> From: Matt Erickson
>> Sent: Monday, May 27, 2002 2:34 PM
>> To: [email protected]
>> Subject: Re: [Icom] Frozen Send relay - 756
>>
>> That, 2A. is a "mis-print", that figure never has been correct. Look 
>> up the
>> specs on the relay, an you will see it is 200mA.
>>
>>
>> At 12:18 PM 5/27/02 -0500, you wrote:
>> >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
>> >
>> >
>> >All Incoming/Outgoing mail checked by Norton Anti-Virus 2002.
>> >
>> >----- 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/
>> >
>> >
>> >----
>> >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/
>>
>>
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>> ----
>> 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/
>
Maybe they have updated the manual in recent PROIIs. Mine says 16V/2A .