[Elecraft] K3: Are the birdies really birdies

[Edward R. Cole]

Birdies are mainly an issue for me on VHF+ where I am involved with 
copying super-weak signals; bain of all eme stations.  If 28-MHz is 
impacted I will have to work on that as I am running the K3 with 
transverters that output 28-32 MHz.  Of course the output signal 
level may be high enough not to be troubled by birdies if they are low level.

As sort of a chuckle, I have made myself a big birdie on 10-MHz with 
the addition of a OCXO 10-MHz station reference for locking PLL's in 
my transverters.   Even though totally run in coax and with the OCXO 
inside a shielded enclosure, 10mw (+10 dBm) is a huge signal.  No 
checking WWV while it is running (it runs continuously to keep it 
stable under 0.01-Hz;  I have my new 1296-MHz transverter with output 
held to <1-Hz freq. error).  I have not seen any harmonic or 
sub-harmonics so that is good, at least.


73, Ed - KL7UW, WD2XSH/45
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