Steve,
I agree, since Tom never said anything about having to reset the amp in any
way. Clearly, at this point, we're all grasping at straws and speculating.
Then again, we're hams, and that's what hams do, right?
Steve
----- Original Message -----
From: "Steve Forst" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, March 12, 2014 21:09
Subject: Re: response from the Amaritron AL811 E-mail List Re Tripping Relay
> Steve,
>
> I had mentioned this to Tom earlier, that since it was a used amp it
> was possible, although I think it is not a common option. I also
> think that if this grid protection unit trips, it must be reset. If
> installed in an AL-80B, the amp goes into standby and the standby switch
> must be flipped to standby and back to operate to get the amp back on
> line. I guess the process would be similar in the 811H and I don't
> think this is what is going on here.
>
> 73, Steve KW3A is w
>
> On 3/12/2014 8:59 PM, Steve Dresser wrote:
>> Tom,
>>
>> I'm guessing that "GOP" stands for grid over-current protection. Since
>> you
>> got the amp used, you might have such a board installed, in which case,
>> your
>> relay would trip if grid current exceeded what it's supposed to be. This
>> may mean that backing off your Mic gain to the point where your AGC isn't
>> in
>> the red all the time will fix the problem.
>>
>> Steve
>>
>> ----- Original Message -----
>> From: "Tom Behler" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Wednesday, March 12, 2014 17:57
>> Subject: response from the Amaritron AL811 E-mail List Re Tripping Relay
>>
>>
>>> 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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