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For blind ham radio operators <[log in to unmask]>
Date:
Wed, 12 Mar 2014 18:36:31 -0400
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For blind ham radio operators <[log in to unmask]>
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Steve Forst <[log in to unmask]>
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Alan,

I have one here and use it for the same thing.    If  you can make it 
work with the box, then you can see about  building or buying  the 
"real" cable.   If it doesn't work, back to the drawing board.

73, Steve KW3A

On 3/12/2014 6:29 PM, Alan R. Downing wrote:
> Steve, I have that very LDG breakout box, and have used it several times to
> help track down problems just like this one.  The box has more than paid for
> itself in saved time, not to mention the hair that has not been pulled out,
> Hi.
>
> Alan/KD7GC
>
>
> Alan R. Downing
> Phoenix, AZ
>
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Steve Forst
> Sent: Wednesday, March 12, 2014 3:21 PM
> To: [log in to unmask]
> Subject: Re: response from the Amaritron AL811 E-mail List Re Tripping Relay
>
> Tom,
>
> I've put in more than my 2 cents on this one so what's another penny or
> 2?   I think part of the problem  starts with  using the term "relay
> tripping".    This kind of gives the idea of an amp  going off line due
> to a fault as a result of some protection  device.    W8JI seems to
> think your amp has a  optional grid protection unit and I think
> everything he says is based on that.  I had mentioned the possibility of
> this grid protection thing a few days ago at the start of this thread,
> but didn't think your amp had this option.
>
> Maybe a better discription of your problem is something like "T/R relay
> clicking at odd and infrequent times".
>
> Most of the amature detecctives on the list (including me) thinkthe
> problem is external to the amp:    Amp buffer, PTT, control cables, or
> whatever.
>
> I know you want to get to the bottom of this, but don't tear the station
> down to the foundation before trying some of the simple things.
>
> BTW, a few years ago there was some discussion of  an LDG breakout box.
>    you had mentioned you had put this on your list of things to get.   if
> you have one, you can use it as an interface between radio and amp.
> Otherwise, to get the buffer out of line, you will need to build, buy,
> or steal the proper cable.    If you have the LDG box laying around you
> can do a quick and dirty interface with a couple of RCA cables and see
> if the buffer is bad.
>
> 73, Steve KW3A
> On 3/12/2014 5:57 PM, Tom Behler wrote:
>> All:
>>
>> Below is a response from Tom (W8JI) regarding my tripping relay issue.
>>
>> I don't fully understand all of the technical details here, or how best to
>> address them, but would be interested in any thoughts anyone has.
>>
>> Thanks, Mike, for posting my quiry, and sending this response to me.
>>
>> Tom Behler: KB8TYJ
>>
>>
>> -----Original Message-----
>> From: For blind ham radio operators [mailto:[log in to unmask]]
>> On Behalf Of Michael Ryan
>> Sent: Wednesday, March 12, 2014 4:38 PM
>> To: [log in to unmask]
>> Subject: Re_tripping relay
>>
>> Tom:
>>
>> Here's tom W8JI's reply regarding your tripping relay.
>> Hope you can get something out of it.
>>
>> 73:
>> Mike VO1AX
>>
>> Mike,
>>
>> In the text question below, I am not familiar with the TS590 menu
> settings.
>>
>> That aside, I am assuming he has a GOP board installed. If so, the GOP
> will
>> trip on peaks over 193 mA.
>>
>> Something is causing peak current to exceed 193 mA, or he could have a bad
>> meter protection diode causing the grid meter to be wrong.
>>
>> He does have that board installed??
>>
>> Why not use a tone oscillator that lets you hear the grid current? It
> would
>> be pretty easy to use the ALC jack for that output if you have an external
>> oscillator. The grid meter is 0.3 volts full scale at 200 mA.
>>
>> 73 Tom
>>
>>
>>
>
>
>

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