[Elecraft] RX noise and 2-wire lines

Grant Youngman ghyoungman at gmail.com
Mon Oct 28 20:29:21 EDT 2019


There is a lot of information here … http://www.lz1aq.signacor.com.  I’ve been considering building something along these lines

Grant NQ5T

> On Oct 28, 2019, at 8:04 PM, David Thompson via Elecraft <elecraft at mailman.qth.net> wrote:
> 
> I would like to know more about your receive antenna. At my home, I deal with S7-S9+ noise and am looking for some way to be able to operate besides FT8.
> 
> Thanks…
> 
> David Thompson, AG7TX
> Jack of All Trades
> Master of None
> dbthompson at me.com
> 
> 
> 
> 
>> On Oct 28, 2019, at 14:31, Drew AF2Z <pubx1 at af2z.net> wrote:
>> 
>> My RX antenna is a pair of small amplified stacked loops. It uses the LZ1AQ amplifier board fed with common FTP (foil twisted pair) cable, which provides the supply voltage, control lines and a shielded twisted pair for the signal. I don't think you can get any better noise isolation than that.
>> 
>> It is a lot quieter than my transmitting antennas; lower signal levels as well, but often a better signal-to-noise ratio than the transmit antennas.
>> 
>> 73,
>> Drew
>> AF2Z
>> 
>> 



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