Who knows something about 50KHz spacing for glideslope receptors?
Traditionally we have 40 GS frequencies, with 150KHz spacing from
329.15MHz to 335 MHz. But I see European ILS's requiring "50KHz
Glideslope spacing". Anyone know what receptors do this? Or why we would
want to do this? 8.33 spacing for VHF coms is easy to understand, but
are 40 ILS frequencies in a given reception area really insufficient?