It is a year alnost to the day since the Russian ZEVS Transmitter was as good a signal at my location.
Interestingly the 82Hz Idle / Start / End carrier has been constant between transmissions.
Also there have been much longer messages and I have identified what is to me a new frequency 83.2Hz labelled by me as ZEVS 13, for now I am calling it P, Page. This addition in fact balances the code making it symmetrical. As 82.0Hz, ZEVS 7 was the observed centre frequency, adding ZEVS 13 gives 6 frequencies either side.
2011 messages had a 3 figure repeated code e.g. S 10,6,11 R 10,6,11 E
easy on the eye to interpret.
S=Start, R=Repeat, E=End, P=Page.
2012 long message e.g. S 10,12,6 R 10,12,6 E 10,9,6 R 10,9,6 E 9,4,3, R 9,4,3 E 5,12,6, R 5,12,6 E 3,12,5 R 3,12,5 E —-S 8,8,3 R 8,8,3 E
2012 new message with 13 frequencies used e.g. S 12,3,11 R 12,3,11 P
2,8,11 X X,X,X E The X’s were wiped out by noise at this end but I can guess, (I hope the Submarines never do) at R 2,8,11. This brings in a whole new block of possible messages above the 2011 estimated 1,000.
It seems odd that I have not seen ZEVS in the UK for a year. Unfortunately I normally switch off my Grabber in the summer, my last note of ZEVS presence was in June so I have no idea of when it disappeared. Maybe the Transmitter been off or is it Propagation, does the noise level at 82Hz rise and obliterate the signal in the winter months.
My Grabber is showing an excellent signal 10dB above the noise peaks at this time, the first message seen today was at 13:00 UTC
My Grabber will be on air as much as possible with live signal capture.
As a reminder the transmission comes from Northern Russia is able to communicate to Submarines under the Polar Ice. The antenna is quite long, long enough to stretch from Italy to The Netherlands plus some.
The other carrier at 80Hz is always present, very stable and 5dB above the noise peaks, I don’t know the origin of this signal, I have seen it in Grabs from the Netherlands also.
Radio - LF/MF to Microwaves 