[Elecraft] P3 TX Mon question

Thu Aug 13 20:02:26 EDT 2015

Alan,  understand that some one will not always be happy with the way 
things are,
any way to make that a menu selection?
I would like to use the P3/TXmon with other radios,  this change would 
not allow that?
Seems that defeats the ability of the P3 with a TXmon to work with other 
radios..
Or did I miss something?

73 Merv K9FD/KH6

> OK, what I did was change it so that, when a K3 is connected, the P3 
> TX monitor will only go into transmit mode when commanded to do so by 
> the K3, even if RF power is present on the coax.  That should 
> eliminate the false tripping.
>
> It will be in the next beta release, which should be Real Soon Now.  :=)
>
> Alan N1AL
>
>
> On 08/12/2015 01:03 PM, W4CCS wrote:
>> Guy:
>>
>> I agree and hold out hope Elecraft will do something.. If the 
>> sensitivity is
>> set low for QRP operators, seems they would not need the 2KW sensor.
>>
>> Maybe have an option in the setup.. Like I stated earlier, it is very
>> annoying and quite sure I'm not the only one with this concern..
>>
>> W4CCS
>>
>> -----Original Message-----
>> From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of 
>> Guy
>> Olinger K2AV
>> Sent: Wednesday, August 12, 2015 3:46 PM
>> To: n1al at sonic.net
>> Cc: elecraft at mailman.qth.net
>> Subject: Re: [Elecraft] P3 TX Mon question
>>
>> It would appear that the display needs an option to gate the display 
>> with
>> the equivent of local TX asserted so it only responds to its own 
>> transmitted
>> signal.  An option because others might want to know that their TX 
>> signal
>> was coming back at them on another coax.
>>
>> Or perhaps set an adjustable gating power level defaulted to one watt.
>>
>> 73, Guy K2AV
>>
>> On Wednesday, August 12, 2015, Alan <n1al at sonic.net> wrote:
>>
>>> 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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