Gcrtsch Standard Frequency Receiver installed in a missife tracking van.

Signal Format

Pulse or hck consists of five cycles of 1000 Hz tone, lengthening to 100 ms at the beginning of each minute. Call sign and time in MCW every quarter hour

Pulse consists of five cycles of 1000 Hz tone. Minute pulse lengthened to 100 ms followed by 200 ms of 440 \ \z tone. Announcement in MCW every 20 minutes wilh a five minute silent period between the 20 and 25 minute.

Carrier interrupted five times pei second for 1 ms, Call sign in CW at 5, 15, 25, 35 and 45 minutes past the hour.

Putse of five cycles of 1000 Hz tone repeated four times at the minute- Coll sign in MCW ond voice rdeniifitation every fifteen minutes.

Puise of five cycles of 1000 Hz tone repeated 7 times at minute, 1000 Hz tone from 5 to 10 minutes. Silent period from 30 to 50 minutes. Call ^gn in MCW at 10, 20 ond 30 minutes. Voice identification at half hour.

1000 Hz tone with second pulses throughout hour except for silent period from 30 to 40 minutes. Announcement in MCW {includes propagation notice) and voice identification every five minutes.

Alternating 1000 and 440 Hz tones for five minute periods with voice and CW announcements every five minutes, Second pulses transmitted between 55 and 60 minutes.

Alternating five minute periods with first period consisting of second pulses, second period no emission. Announcement in morse and voice every 10 minutes.

Five minute period of 1000 Hz tone on hour, 15, 30, and 45 mfnutes, Curn&r only from 20 to 25 minutes, tali in morse e\ery 15 minutes.

Second pulses of ffve cycles of 1000 Hz rone from 0 to \S minutes No emission from 15 to 25 minutes Second pulses resume ai 25 minutes. MCW onncunce-ment every 15 minutes.

Table 2. Programs of miscellaneous stations.

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