Was seen on Austin Texas grabber last night weakly though. No skywave that I could detect. I will put amp meter in line and let you know. Looks like 800 Wts about it. Am going to try some of your "corona proofing" and maybe get to KW.
Still have work to do on amp. Tuned input to raise efficiency for starters. Harmonic output from solid state driver getting eaten in tube pi net and could be better output with tuned input.
Coil is 2500' of #14 enameled [fomvar] copper solid wound on one 4' X13" PVC pipe-will send you pix.
Date: Sat, 1 Mar 2014 20:08:41 +0100
From:
[email protected]To:
[email protected]Subject: Re: LF: RE: Will be trying new allocation 29.499 kHz for tonight...
Hello Bob, Warren, Dex, Jay, Jim, Laurence...
Congrats to that special grant to transmit on the higher VLF and low
LF. Hopefully you will make a TA detection in that range. The TF3HZ VLF
grabber may be a good challenge!
Maybe QRSS-120 is a bit optimistic but you/we will see :-)
Bob, can you show us a photo of your VLF loading coil? How much current
are you getting with that 800W RF power?
Good luck and fun.
73, Stefan/DK7FC
PS: So far i cannot monitor the range above 24 kHz regularly. I'll wait
to see what distance you can make and will do some modifications to the
setup then.
Am 01.03.2014 01:18, schrieb Bob Raide:
Jim;
Should be great for next year. I can see that it's not easy to put out
a good signal on VLF! Don't know if you'll see me in Arizona until I
get up to full power. Need bigger mica cap and then can get another 3
db. I see limit though going to be around 800 watts RF power as
voltage builds up to over 30 KV quickly as approach 1 KW!.
Will wait to see if you get even a trace tonight-I'll be on till 0600
or so and tomorrow again-73, Bob
From:
[email protected]
To:
[email protected]
Date: Fri, 28 Feb 2014 18:33:22 -0500
Subject: LF: RE: Will be trying new allocation 29.499 kHz for tonight...
Bob,
I’ll
be monitoring your frequency continuously in Arizona, starting at 0700.
Will you be on overnight?
Barring
conflicts, I’ll put an Arizona grabber online next week, including a
window for your signal.
The
following week, barring conflicts, I will put a grabber online in
Virginia, including a window for your signal..
I’m
planning to have TX operational in both locations, in March. TX and RX
equipment is onsite and operational but TX equipment needs adjustments.
73,
Jim AA5BW
WH2XBA/1 NY [XAB1] on
QRSS 120 for tonight-hoping for any captures-Bob
