[TowerTalk] 80m rotary dipole for 160M RX ?

[jimlux]

On 1/17/17 9:32 AM, Jim Thomson wrote:
> Has anybody tried using a 80m rotary dipole as a 160M  RX ant ?   Im thinking it may well be quieter
> than any dedicated RX ant I could come up with....on a city lot.   There is no way I can get adequate
> separation between any 160m TX ant, like a .25 wave sloper,  shunt fed tower,etc, and a 160M  RX array.
> This assumes plenty of Z and esp RS on the 80m 1:1  choke balun... when used for 160M RX.   I dont use
> QSK, just vox.  So I would have to incorporate some high speed vac relay setup to swap ants when on 160M RX.
> It would be interesting to know if the  RX concept even works.  80m rotary dipole planned to go up this spring, on the
> crankup..at 100 ft.
>

You're hoping to use the nulls off the end of the dipole to reduce noise?
A shortened dipole still has nulls, and might be even easier.

if the noise is directional, then some sort of active canceller might be 
a better bet.


> Jim  VE7RF
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