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 ====================================== BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-800*w, 432-100w, 1296-testing*, 3400-winter? DUBUS Magazine USA Rep [email protected] ====================================== *temp not in service ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
