[Premium-Rx] Longwave Receiver Recommendations?

[Ray Poularas]

I Don;t know how this would compare to more modern VLF sets but my WJ-357
does a very nice job, in my RF noisy environment. See:
http://www.tuberadio.com/wj357/wj357.htm and also on Terry Site.

I feed it with a TFDP antenna, and s 6 to 1 isolated Balun, this brings
the noise floor right down and all sorts of interesting LF signals start
to appear.

Some of my older sets also do a very good job, the Marconi R-1155 and the
ARB with the Du-1 loop amplifier are very good See:
http://www.tuberadio.com/arb/arb.html

The DU-1 and ARB can DF the LF beacon even from under ground in my
workshop, which was a surprise.

The DU-1 and ARB set are extremely sensitive for Valve sets as well.

Regards

Ray Poularas
www.tuberadio.com


> I have consolidated info on the USN ELF system at
> http://www.navy-radio.com/commsta-elf.htm
>
> Best regards
> Nick
>
>
>
> On Fri, Apr 3, 2020 at 6:51 PM George Georgevits <georgg at bigpond.net.au>
> wrote:
>
>> Gentlemen,
>>
>> ....I found the discussion on ELF and Terry's article of particular
>> interest. Given the lengths they had to go to (pun intended) to transmit
>> the signal, I wonder what aerial the submarine used to receive it?
>> Surely
>> not a very long wire towed in the water??? I also wonder what Rx
>> equipment
>> they used, that is, before the days of SDR? A quick search on the
>> Internet
>> drew a complete blank on this subject, even though the 76Hz system was
>> decommissioned (and presumably declassified)
>
>
>
> Cheers,
>
> George Georgevits
>> VK2KGG
>>
>> -----Original Message-----
>> From: premium-rx-bounces at mailman.qth.net [mailto:
>> premium-rx-bounces at mailman.qth.net] On Behalf Of Terry O'
>> Sent: Friday, 3 April 2020 12:29 PM
>> To: premium-rx at mailman.qth.net
>> Subject: Re: [Premium-Rx] Longwave Receiver Recommendations?
>>
>> The data rate was ridiculously slow.  3 characters in 15 minutes.  I
>> wrote an article for Popular Communications on it, which, now they are
>> out of print, is on my website.
>> http://blackradios.terryo.org/documents/publications/e-ELF.pdf
>>
>> Terry O'
>>
>>
>> On 4/2/2020 8:14 PM, Jeremy Nichols wrote:
>> > Is that the receiver the Navy used with a transmitter somewhere in the
>> > upper Midwest? Michigan or Wisconsin? For communicating with subs
>> under
>> > water anywhere in the world. Very low data rate.
>> >
>> > Jeremy
>> >
>>
> --
> Nick England K4NYW
> www.navy-radio.com
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Ray Poularas
Tube Radio Australia
+61 412113973