2 PPS 0130 UTC 29 Nov 2018

[Exo]

Report
2018DEC04 2030 UTC
The 2pps ditter has not been heard here for the past hour on any of the previously logged frequencies.

[Edgar Souse]

I think I may have caught the same thing last night, 8000 KHZ 0400 UTC 4 Dec 2018. Listening via an SDR in southern Nevada on SDR.HU. Roughly 2 pps. I used a metronome to time it at 125 bpm.

[Boriken]

Dec 06 2018 O145 UTC on 6500 & 7000.

[Exo]

Highlight of this report: Clear audio recording of the 2pps frequency hopping ditter.

Report
2018DEC06 0203UTC
5500.00 kHz CW, frequency hopping ditter, good readable, -110 dBm.

PLAY AUDIO: clear recording on 5500 kHz of the 2pps CW frequency hopping ditter 2018DEC06 0203UTC

Waterfall image below shows the frequency hopping ditter on 5500 kHz at 2018DEC06 0203UTC:



The 26 logged frequency hops so far:

2000 kHz
2510 Not logged
3000
3500
4000
4500
5010
5500
6000
6500
7000
7500
8000
8500
9000
9500
10010
10500 Not logged
11000
11500 Not logged
12000
12500 Not logged
13000
13500
14000
14500 Not logged
15010
15500 Not logged
16000
16500
17000 Not logged
17500 Not logged
18000 Not logged
18068
18500 Not logged
19000 Not logged
19500


Nil Report update:
2018DEC07 0132UTC The 2pps frequency hopper appears to be offline at this moment.
It is not being logged here now on any of previously logged frequencies.

[Traveling Wave]

0230 UTC - 6 Dec 2018,  hearing 2PPS tonight on following frequencies in WNY: 4000, 4500, 5010, 6500, 7000, 7500, 8000, 8500, 9000 kHz .

[ChrisSmolinski]

My report for 1045 UTC 6 Dec 2018:

3000
3500
4000
4500 - maybe, difficult to tell due to CODAR QRM
5010
5500
6000
6500

[Token]

The 26 logged frequency hops so far:

2000 kHz
2510 Not logged
3000
3500
4000
4500
5010
5500
6000
6500
7000
7500
8000
8500
9000
9500
10010
10500 Not logged
11000
11500 Not logged
12000
12500 Not logged
13000
13500
14000
14500 Not logged
15010
15500 Not logged
16000
16500
17000 Not logged
17500 Not logged
18000 Not logged
18068
18500 Not logged
19000 Not logged
19500

And 26 would be the right number.  If the signal is sequencing through the freqs as it appears to have been when I looked at it, then we should be able to tell the maximum number of possible freqs based on the pulse width and time.

If you look at the numbers I posted (in my post with the audio images), and if they are correct, 479.6 msec period and 18.4 msec pulse (both numbers are rounded to the closest 0.1), this allows for 26 steps / frequencies.

Since all of those "not logged" freqs have been seen at one time or another, that would probably indicate that they do change frequency sets and that if you don't see a specific freq in use at a specific time it might not be conditions, but it might be the freq really is not active.

T!

[N0TZU]

I heard it today Dec 6 about 2300 UTC on the frequencies below (checked every 500 kHz from 2.000 to 16.000 MHz).  Later when checked at about 2330 it was gone on all of them. I also didn't hear it on 4.500.

3.000 (very weak)
3.500
4.000
5.010
5.500
6.000
6.500
7.000
7.500
8.000
8.500
9.000
9.500
10.010
10.500
11.000

[Exo]

Taken as a whole, considering the reports on HFU and elsewhere, the 2 PPS has the typical characteristics of someone testing an antenna system for a (low power ~20 Watt) frequency hopping radio system, out in The Southwest.

Is 2PPS the "Son Of Yosemite Sam" ?

It hops in a sequence like Yosemite Sam did, but faster and more frequencies.

It uses some of the original Yosemite Sam hop frequencies
3700 kHz
4300 kHz
6500 kHz
10500 kHz

And near the Yosemite Sam revised set of additional hop frequencies:
10000 MHz
15000 MHz

Yosemite Sam on SpyNumbers:
http://www.spynumbers.com/YosemiteSam.html