[Milsurplus] AN/ARN-9 Air-Track ILS - TYPOS

[Mike Morrow]

Here are a couple of typo corrections to my recent posting:

> (ZAX - 1940)
> RU-* - MF LOCALIZER and MF MARKER BEACON receiver.
> ZA-* - VHF GLIDE SLOPE receiver, LOCALIZER converter.

ZAX above should have been ZA.  ZAX was an improved ZA prototype that became the AN/ARN-9.

> The system consisted of:
> VHF LOCALIZER 108-110 MHz (6 channels), modulated at 90 and 150 Hz.
> UHF GLIDE SLOPE 332-335 MHz (3 channels), modulated at 90 and 150 Hz.
> VHF MARKER BEACON 75 Hz, modulated at 1300 Hz.

The SCS-51 VHF MARKER BEACON frequency above should have been 75 MHz.

Mike / KK5F