[MRCA] M&S/Snow

[mstangelo at comcast.net]

Chris,

Thanks for the report. I've been a VLF/LF listener since I started in the hobby in the 1960's. 

My main LF receiver was my Drake TR-7 which was my first serious SSB rig. Drake swapped the RF and IF ports on the Doubly Balanced Mixer used in the front end so the input literally went down to DC. I bypassed the 20db attenuator on the LF input port so that I could feed it directly with my LF antennas. I also use an HP3586 Selective Level Meter. Both are now located in my basement workbench.

These days I am using an ELAD FDM-S2 SDR receiver in the shack to pick up the VLF and LF stations.

Mike N2MS
 


----- Original Message -----
From: Chris Bowne <aj1g at sbcglobal.net>
To: mstangelo at comcast.net
Cc: Mark Burgess <m38inmaine at gmail.com>, MRCA at mailman.qth.net
Sent: Sun, 22 Feb 2015 22:58:40 -0000 (UTC)
Subject: Re: [MRCA] M&S/Snow

NAA's MSK on 24 kHz pounds in here 24/7 down in CT on my Wandell und Goltermann AT-611 frequency selective voltmeter.  The AT-611 is essentially a quad conversion CW/SSB receiver with a calibrated dBm level meter and gain control that tunes from 2 KHz to 18 MHz and a level range from -120 to +40 dBM.  NAA is a solid -50 dBM virtually 24/7 using my 80 meter inverted vee.  NPM in Lualualei, on the west side of Oahu, HI comes in on 21.4 kHz every night at about -80 dBm.  I can also hear the other Navy VLF stations in Jim Creek, WA (NLK) and LaMour, ND (NML) as well. I was out on Oahu in December and drove by the NPM site.  The twin towers there are said to be over 1500 feet high.  They don't look that high, perhaps the tower diameters are very big and throws off the perspective.  I am amazed they come in so well here over 5000 miles to the northwest considering they are in a hole so to speak with a mountain ridge just to the east of the antenna location.

Sent from my iPhone

> On Feb 19, 2015, at 19:34, mstangelo at comcast.net wrote:
> 
> Mark,
> 
> Impressive picture! What station is this? It doesn't look like NAA at Cutler but I can see much with all of that snow.
> 
> Mike N2MS
> ----- Original Message -----
> From: Mark Burgess <m38inmaine at gmail.com>
> To: MRCA at mailman.qth.net
> Sent: Thu, 19 Feb 2015 17:30:53 -0000 (UTC)
> Subject: [MRCA] M&S/Snow
> 
> Tough copy today, even Pete's signal was just there.
>  Thought I would post a couple of pictures of the snow up here in Maine.
> Two pictures showing how tall the snow is at the VLF site where I work.
> The section on watch during the last storm was stuck there 36 hours while 3
> front loaders and several plows tried to clear the road through the antenna
> field.
> 
> 
> 73
> K1HF
> 
> ​
> 
> ​
> 
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