The ditter network is active again, observed on:
Off at 1410z.
I refer to this signal as "Pips" in my logbook to keep it seperate from the "ditters" name I use for short pulse pirate beacons. My log is a Filemaker Pro database I built years ago, and using the term Pips helps me find past transmissions of this signal in the DB as needed.
1357 to 1410 UTC frequencies observed:
4900
5450
5575
5600
6225
6550
6725
6750
7700
8275
8825
8900 (timing)
8975
9050
9225
10050
10450
10575
11025
11150 (x2)
11225
11300
12025
12450
13100
13250
13325
13875
14400
15100
15550
15625
16000
16350
16550
16725 (x2)
17475
17650
17950 (timing)
17975
18050
18100
18450
18625
19300
20175
The frequencies marked "timing" appeared to have a different timing cycle form the frequencies around it. The pulses are the same length, and they were still 6 seconds between pulses, but the timing of those pulses did not line up with the timing of the pulses around them.
The frequencies marked "x2" showed 2 pulses in 6 seconds, and are possibly common frequencies to two different pulse networks.
T!
(edit) added 5 more frequencies that I found on reviewing the recordings again.
(edit 2) added 4 more frequencies found on even further review of the recordings.