[Elecraft] P3 Broad Birdie & straw men...

[Johnny Siu]

Hello Jim,
 
I fully appreciate the PITA and am annoyed about it.
 
The elimination of internal birdies require substantial amount of DSP power.  In the circumstances, by taking advantage of the module design of K3, a new more powerful DSP board to replace the existing one may be the ultimate solution in the future.  Of course, this will take Elecraft some time to implement
 
At the current moment, I still feel that K3 is the smallest portable high performance radio with true dual receivers.  It will not be practical for me to take my IC7800 easily to other QTH to operate.
 
I am going to do some IOTA operation this week end and will bring my K3 with me.

TNX & 73,


Johnny VR2XMC

從︰ Jim Brown <jim at audiosystemsgroup.com>
收件人︰ Reflector Elecraft <elecraft at mailman.qth.net>
傳送日期︰ 2011年06月13日 (週一) 1:25 PM
主題︰ Re: [Elecraft] P3 Broad Birdie & straw men...

I understand exactly what you are talking about -- my case #2, but I 
also realized that what K3TUF and N6XI are talking about was my case 
#1.  Your birdies and noise are from OUTSIDE the radio.  Their's are 
only INSIDE the radio.  I experience both.

Notice that Phil says  "Must be on the IF because it is never heard even 
when it is in the
apparent bandwidth window."

These INTERIOR birdies also get MUCH stronger when you have the SUB RX 
turned on.  During the VHF contest, I split my time between CW and SSB, 
with the SUB RX listening to whichever one I wasn't transmitting on.  
The thing that's a PITA about this is that you think that these are 
signals that you can work, so you switch from SSB to CW to work them, 
but they aren't really there.  There are also some fairly weak 
birdies/noise peaks that look like weak CW signals, but are not.  And I 
worked nearly a dozen weak CW signals that looked like those 
birdies/noise peaks, and as you tune to work them, they also disappear.

73, Jim K9YC

On 6/12/2011 6:34 PM, John Ragle wrote:
> second paragraph, and I believe the other posts are talking about 
> exactly the same thing. If you will take the time to read what they 
> wrote, you might recognize as much. Perhaps your objection is to the 
> use of the word "birdie" in this context?

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