[ARC5] FCC General exam

[mstangelo at comcast.net]

The Navy still uses VLF transmitters to communicate with submarines. Using a loop antenna to eliminate local QRN I can pick up the Laulualei Hawaii station on 21.4 khz or the Jim Creek, Washington station on 24.8khz day or night.

The Cutler, Maine station at 24khz is easy to pick up since it is close to my QTH in New Jersey.

Mike N2MS


----- Original Message -----
From: D C _Mac_ Macdonald <k2gkk at hotmail.com>
To: Bruce Long <coolbrucelong at yahoo.com>, KM1H Carl H. <geoffrey at jeremy.mv.com>, ARC-5 Mail List <arc5 at mailman.qth.net>
Sent: Tue, 26 Nov 2013 19:02:02 -0000 (UTC)
Subject: Re: [ARC5] FCC General exam

Theoretically a maybe, but practically speaking, how much signal will be heard amidst all the atmospheric noise at 100 kHz?  Well, I admit I don't have a RX to listen there. 

 
* * * * * * * * * * * 
* 73 - Mac, K2GKK/5 * 
* (Since 30 Nov 53) * 
* k2gkk hotmail com * 
* Oklahoma City, OK * 
* USAF & FAA (Ret.) * 
* * * * * * * * * * * 
 
 

> Date: Tue, 26 Nov 2013 10:51:02 -0800
> From: coolbrucelong at yahoo.com
> To: geoffrey at jeremy.mv.com; k2gkk at hotmail.com; arc5 at mailman.qth.net
> Subject: Re: [ARC5] FCC General exam
> 
> a long long time ago when I was a novice there was an uproar about a FCC propagation question.  The question was "What frequency is most reliable for long range communications?  Most hams would of course answer 14 MHz which is arguably the correct answer for the amateur service  but the "Correct" answer was 100 kHz because of ground wave propagation which is global in extent and largely unaffected by the state of the ionosphere.
> 
> 
> On Monday, November 25, 2013 8:47 PM, Geoff <geoffrey at jeremy.mv.com> wrote:
> 
> Yep, I still say sunset at least at one end of the path is the real answer 
> that most mainstream academics totally miss and gives the very long distance 
> grayline propagation which extends from MF to at least 10M.
> 
> Low band DXers work anywhere on the planet at their sunset or sunrise (I 
> have close to 300 DXCC countries on 160 and a lot more on 80 and 40.
> And it is rather amazing to have a dead 10M at a low spot of the sunspots 
> and have a short opening into the deep South Pacific at sunset where even 
> 10W can be loud.
> 
> Carl
> 
> 
>