Re: [Elecraft] P3 TX monitoring

2012-06-22 Thread Harold V
I discovered this by accident a couple of weeks ago.

It does not involve removing any cables, reprogramming or anything like that.  
It's all done with the freeze function of the P3 display and the P3 Utility 
program version 1.3.8.25.

I sent this information to a friend of mine who also has a K3/P3 and it works 
for him.

I have only done this with SSB so I don't know if it works in other modes.

Be sure you are using PTT because once you stop transmitting the P3 reverts to 
normal operation

Before you try this you must assign the freeze function to a function button on 
the P3.

Then, the exact steps are as follows:

1. turn on the K3, P3 and your computer
2. make sure the computer is connected to the P3 and the P3 to the K3
3. start the P3 utility program and select the capture image TAB
4. press the function button you assigned to freeze the P3 display
5. press the capture image BUTTON in the P3 Utility program
6. WAIT until the image is captured and the capture image button regains focus
7. press and HOLD your PTT switch on the K3
8. press the function button on the P3 to unfreeze the display
9. your transmitted signal should display real time on the P3 until you release 
the PTT

This works every time for me.  I sent an email to info at Elecraft about a week 
ago asking if they could figure this out and incorporate it into the normal 
operation of the P3 but have not yet received a reply.

It will sometimes work simply by freezing the P3 display, hitting the PTT and 
then unfreezing the P3 display but it will consistently work for me by 
following 
the steps shown above.

Try it and see if it works for you.

Van
K0HCV
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[Elecraft] Interpretation of P3 display

2012-06-08 Thread Harold V
I have a question for the group regarding interpretation of the P3 display of 
SSB signals.

Primarily I use it to spot stations on quiet bands or spot openings on busy 
bands.  But I am trying to gain a better understanding of what it is showing me 
regarding the quality of signals as well.

I have my P3 set up to show the band width as a column and the span set to +/- 
25.  I have noticed that most SSB signals will remain within the bounds of the 
column.  However, some SSB signals will exceed the width of the column and will 
resemble a pyramid, occupying several kilohertz above and below the column on 
voice peaks.  The proximity of the station does not appear to matter as these 
observations apply to distant stations as well as local stations.

Is this what is known as "splatter"?  Is the station overdriving their 
transmitter or linear?  Is their ALC or compression too high?  Is the frequency 
response of their microphone too wide?

A good friend of mine has a K3/P3 and we have discussed this at length and come 
to the conclusion that we really don't understand what we are seeing.  Anyone 
on 
the list have comments as to what they have observed or an explanation of what 
we are seeing?

Any relevant comments would be appreciated.

Thanks
Van
K0HCV
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[Elecraft] K3 and Icom IC-2KL linear

2011-11-15 Thread Harold V
Has anyone used the K3 with an Icom IC-2KL linear?

I am curious as to whether you connected the ALC from the linear to the K3 or 
used the K3 without the ALC connected.
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