HFU HF Underground

Loggings => Other => Topic started by: ChrisSmolinski on August 03, 2013, 1414 UTC

Title: Pip network active again 3 Aug 2013
Post by: ChrisSmolinski on August 03, 2013, 1414 UTC

Thanks to Token for the heads up. Check previous posts (Ditter Network) for frequencies.

Title: Re: Pip network active again 3 Aug 2013
Post by: ChrisSmolinski on August 03, 2013, 1835 UTC

Observed on these frequencies until they closed down at around 1830z:
6225
6550
7700
8275
8825
8975
9050
9225
10050
10400
10575
11025
11150
11225
11300
12025
12475
13325
14400
16725
16925
17475
17975
18025
18625
19300

Title: Re: Pip network active again 3 Aug 2013
Post by: Token on August 04, 2013, 0001 UTC

After seeing the Pips this morning and making a recording I was gone for the rest of the day.  Grandson and I went to Chino Planes of Fame, they were flying their F4U Corsair and we needed to see it ;)

The recordings I made were about 1430 UTC.  Keep in mind this station has, in the past, changed frequencies over time through a day.  So no idea what it looked like after about 1435 UTC.  I have only taken a quick look at the recordings, but I probably got most freqs, I will take a detailed look later, but as that will take a couple hours for the 6 or 8 minutes of recordings I have there is no telling when I will get to it.

Frequencies I saw this morning:

4450
4900
5450
5575
5600
6225
6550
6725
6750
7700
8000
8275
8825
8900
8975
9050
9225
10050
10450
10575
11025
11150  (double pulse)
11225
11300
12025
12450
13100
13250
13325
13450
13500
13875
14400
15100
15550
15625
16000
16350
16550
16725  (double pulse)
17475
17650
17950
17975
18050
18100
18450
18625
18675
19300
19650
20100
20175
20250
21150

Note that 2 frequencies fall inside ham bands, 18100 is inside the 17 meter band and 21150 is inside the 15 meter band.  I have never caught them there before, but now that I have I will go back and check old recordings to see if they were always there.

T!

Title: Re: Pip network active again 3 Aug 2013
Post by: Token on August 04, 2013, 0303 UTC

The problem of the above list is that it is 55 frequencies, and I have since found a couple more.  And the timing of the pulses, 125 msec duration and 6.0 seconds pulse to pulse on a given frequency, only allows for 48 frequencies in a network with no overlap of pulses.  And I have not noted any overlap of pulses.  There pretty much has to be at least 2 networks.  So far I have seen no indication of more than 2.

T!