[Elecraft] P3 TX Mon question

[Alan]

The transmit sensor in the P3 TX monitor trips at only a few tenths of a 
watt (a few watts with the 2 kW coupler).  It was made sensitive so it 
would work with QRP.

Alan N1AL


On 08/12/2015 08:25 AM, W4CCS wrote:
> The radio with the TX Mon is on 6 meters only. The HF antennas are about 200 feet away and about 150 feet high. That equates to around 90 feet
> Above the six meter antenna.. Thought that would be adequate.
>
> This never happens on the Power Master meter or on the LP-100.. Only the TX Mon.
>
> W4CCS
>
> -----Original Message-----
> From: Joe Subich, W4TV [mailto:lists at subich.com]
> Sent: Wednesday, August 12, 2015 10:51 AM
> To: W4CCS; Elecraft
> Subject: Re: [Elecraft] P3 TX Mon question
>
>
> Almost certainly "inter station coupling" particularly if the two antennas were close together and/or the (two radio) antenna switch lacks sufficient isolation.
>
> 73,
>
>      ... Joe, W4TV
>
>
> On 8/12/2015 10:09 AM, W4CCS wrote:
>> Sorry, I did not answer your question..
>>
>> Yes, the VSWR is showing high and all reflected..
>>
>> CCS
>>
>> -----Original Message-----
>> From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of
>> Joe Subich, W4TV
>> Sent: Wednesday, August 12, 2015 9:30 AM
>> To: elecraft at mailman.qth.net
>> Subject: Re: [Elecraft] P3 TX Mon question
>>
>>
>> As N1AL indicated, the TX MON goes to maximum gain at low signal levels.
>> You're probably seeing inter station coupling - hopefully at low levels.
>>
>> Is the SWR very high - all "reflected"?
>>
>> 73,
>>
>>       ... Joe, W4TV
>>
>>
>> On 8/12/2015 9:20 AM, W4CCS wrote:
>>> I have two K3's and two P3's but only one has the TX Mon option..
>>> When I transmit with the K3 that does NOT have the TX Mon installed,
>>> the P3 that does have it reacts showing VSWR and one sweep of the
>>> transmit
>> envelope..
>>> This seems very strange.. The only thing in common between the two is
>>> the MicroHam router program..  Suggestions..??
>>>
>>>
>>>
>>> Clyde Scott - W4CCS
>>>
>>> Moultrie, GA - EM81cg
>>>
>>>
>>>
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>
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