I'm amazed that such an eclectic group has so many similar experiences in which I am included: flying, NAVAIDs, boats, trumpet, bass in choir, etc. Adding to the ILS story, while stationed at Canon AFB NM, I also worked full-time as a TV broadcast engineer. I was part of a team that installed a new FM station at the same location.
Shortly after that, I got word at the Communications Squadron Chief of Maintenance office where I worked of F-111D pilots experiencing country and western music on on runway's ILS approach. The FM frequency was 107.5, just below the ILS localizer band. My Chief and I stook a giant RADAR spectrum analyzer (two-man carry) to the FM TX site. As expected, it was clean. Next, I visited the Avionics shop to put a USM/323 RF signal generator on one of the F-111 ILS receivers. With a 105.5 FM modulated signal, the ILS RX lit up! It was as broad as...! The least expensive solution was to move the ILS (Localizer and Glideslope since they're related) to a new frequency pair. That meant new antennas, phasing lines, alignment, etc. I'm certain it cost more than the new RCA FM transmitter and antenna/feedline, but was "easier" to accomplish. BTW, an HT and helmet-mounted headset work pretty well in sports car racing. However, I never tried to add HF mobile to my Spec Miata, much less try CW while on the track! I have some interesting in-car video recordings of me calling my wife after some "incidents." 73, Bill, K8TE -- Sent from: http://elecraft.365791.n2.nabble.com/ ______________________________________________________________ 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 Message delivered to [email protected]
