Russ,

Like any broadband antenna, this one has to be a compromise.  Beyond that, 
though, it's hard to say what it will do.

Steve

----- Original Message ----- 
From: "Russ Kiehne" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, January 26, 2011 11:15
Subject: Re: Really Big Transmitters


> The reason I ask, do you know anything about the following antenna?
> The AOR LA390
> is a wide range receiving antenna that covers from 10 kHz to 500 MHz. 
> There
> are
> four selectable
> band ranges
> from 150 kHz to 30 MHz that allow manual tuning and then fixed operation
> for covered
> frequencies from 10-149 kHz and 30-500 MHz. The built in amplifier 
> provides
> up to
> 20 dB of gain. This indoor antenna is ideal when space is at a premium. 
> This
> active
> loop antenna has a 1 foot diameter. The single supplied loop element is 
> all
> that
> is required for the entire reception range.
> ----- Original Message ----- 
> From: "Martin McCormick" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, January 26, 2011 7:44 AM
> Subject: Re: Really Big Transmitters
>
>
>> Russ Kiehne writes:
>>> I was wondering, what are you using for an antenna on longwave?
>>
>> A very, very poor antenna for now. It is the three guy
>> wires on my tower electrically tied together. When we get some
>> milder weather, I plan to change that to an inverted V type
>> configuration. I have heavy insulators designed to be load
>> bearing on each end of each guy wire and each wire is about 55
>> feet long so it still will not be very efficient on long wave.
>> Some of the really good long wave antennas are large coils or
>> loops of wire on a big frame which I should probably try some
>> time to see if I hear anything more than I do now.
>>
>> Short of hitting the jack pot and buying a huge ranch
>> out in the country, all my low-frequency antennas will be
>> extreme compromises.
>>
>> By the way, I hear that long-wave antennas work well
>> when run just above the ground. Low-frequency RF does not
>> propagate via the same mechanisms that HF does.
>