For 13 months I have not been allowed to drive because of my brain bleed. I have had to rely on my wife totally.
Today, I drove to and
from the local garden centres at Fordham. This is a round trip of nearly
10 miles. Both the neurosurgeon and my doctor said "yes" and DVLA
agreed I could drive again. I informed the insurer too just in case. I would
probably not want to drive too far for a while, but at least I can drive
again locally. This is a major step for me. Just a little more independence.
With luck, I hope to be able to resume some amateur radio field experiments quite soon. I am still wobbly on my feet though. It would be good to try some earth-mode tests from this QTH.
Showing posts with label elf. Show all posts
Showing posts with label elf. Show all posts
10 Oct 2014
5 Oct 2014
Receiving the Russian ZEVS transmissions on 82Hz (yes Hertz!)
See http://www.vlf.it/zevs/zevs.htm .
Quite a few VLF/ELFers attempt to copy the Russian ZEVS transmissions to deeply submerged nuclear subs at around 82Hz, yes, you read right, Hertz. At these frequencies even a few watts ERP penetrate deeply in the sea. The Americans used a similar system called Project Sanguine at around 76Hz , but this has now gone QRT. I think they use green lasers now?
The ZEVS data rate is low and usually there are a couple of transmissions a day. Usually Spectrum Laboratory software is needed for long term stability. Several people have been successful, although I have still to try.
I hope the transmissions are just tests these days!
Quite a few VLF/ELFers attempt to copy the Russian ZEVS transmissions to deeply submerged nuclear subs at around 82Hz, yes, you read right, Hertz. At these frequencies even a few watts ERP penetrate deeply in the sea. The Americans used a similar system called Project Sanguine at around 76Hz , but this has now gone QRT. I think they use green lasers now?
The ZEVS data rate is low and usually there are a couple of transmissions a day. Usually Spectrum Laboratory software is needed for long term stability. Several people have been successful, although I have still to try.
I hope the transmissions are just tests these days!
25 Dec 2008
Radio Nature
A very happy Christmas everyone. One of my presents was the book called "Radio Nature" by Renato Romero which is a very good introduction to the weird and wonderful world of ELF/VLF natural emissions such as whistlers and tweeks. The book, available from the RSGB on-line bookstore, is an excellent read.
See also his excellent webpages at http://www.vlf.it/ .
See also his excellent webpages at http://www.vlf.it/ .
Labels:
elf,
natural radio,
tweeks,
vlf,
whistlers
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