Hi Walter The actual name of the occurrence escapes me but IIRC if you took several frequencies in relatively close proximity, added them together and then divided by the number of frequencies. The resultant answer (Frequency average) could flasely radiate?? the signal. I saw occurrences of this when I was a controller. You had to have the same frequencies (transmitters) in use at the same time for it to occur. If we changed to a backup transmitter (All controllers have them) the situation stopped. IIRC since the primary and the backup each had it's own antenna it was resolved by swapping transmitter locations. Hence problem basically resolved. This sounds similar. Al ----- Original Message ----- From: "Travel Pages" <travelpages@xxxxxxxxx> To: <AIRLINE@xxxxxxxxxxxxxxxxx> Sent: Friday, January 14, 2005 6:59 PM Subject: Re: [Sky-1] Shreveport radio shut down due to RF interference > That business of FM ending at the bottom of FAA radiowaves is exactly the > issue still around today concerning the use of cellphones. > > Someone will know better than I, but in the 1960's I believe a TWA DC3 hit > an AA DC4 in fog over the East River in New York --- authorities allegedly > found in a child's carryon a radio in the ON position at the top of the > dial.... and that, I belive, was the beginning of the story about radios > mucking with nav equipment.... > > W Wilson <wlw-jr@xxxxxxx> wrote: > The radio station probably 'just' needs a tuning and a subsequent visit > from a "Flight check" aircraft to fly a series of approaches. > > Walter > DCA > ----- Original Message ----- > From: Richard Silagi > To: Skyone@xxxxxxxxxxxxxxx > Sent: Friday, January 14, 2005 18:28 > Subject: Re: [Sky-1] Shreveport radio shut down due to RF interference > > > Some navigational stuff on in the aircraft band starts > at 108.1 MHZ. If the radio station was at 107.9, that > is about as close as you can get! Looks like > KBAD(Barksdale AFB) uses 109.9 for a localizer > frequency. 108.6 is in use by the nearby DTN > (Downtown) VOR. > > --- Bahadir Acuner <bahadiracuner@xxxxxxxxx> wrote: > >> >> Nope.. >> The end of your FM dial is pretty close to where >> civil >> aviation freq starts. >> >> BAHA >> Fan of Canada for cheaper aircraft paint >> >> --- Ken Sanford <kaerophil@xxxxxxxxxxxx> wrote: >> >> > I thought that aircraft use a completely different >> > band/frequency than >> > radio sytations. Am I missing something here? >> > >> > Ken Sanford >> > GVA >> > >> > Travel Pages wrote: >> > > > > SkyOne--The Airline News Channel > To Post message: Skyone@xxxxxxxxxxxxxxx > To Subscribe: Skyone-subscribe@xxxxxxxxxxxxxxx > To Unsubscribe: Skyone-unsubscribe@xxxxxxxxxxxxxxx > List owner: Skyone-owner@xxxxxxxxxxxxxxx > Skyone URL: > http://www.yahoogroups.com/group/Skyone > > > > --------------------------------- > Yahoo! Groups Links > > To visit your group on the web, go to: > http://groups.yahoo.com/group/Skyone/ > > To unsubscribe from this group, send an email to: > Skyone-unsubscribe@xxxxxxxxxxxxxxx > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. > > > > --------------------------------- > Do you Yahoo!? > Yahoo! Mail - now with 250MB free storage. Learn more. >