[TowerTalk] Temporary Coax on the ground

[Roger (K8RI) on TT]

Try a choke in the coax just before the batching network. Use Jim 
Brown's (K9YC) RFI tutorial for the specifications.  To me, it sounds 
like feed line pick up.

73

Roger (K8RI)


On 1/28/2016 Thursday 4:13 PM, dw wrote:
> I have two wire antennas.
> One is a classic 135' doublet up 55' favoring E/W
> The other is a 40m dipole I put up last fall which is slightly
> North-West facing.. for working JA(s) on grey-line.
> Since the 40m Dipole was a "throw-up" I simply left the 100 feet of
> RG-213 lying on the ground going to it.
> Both wire antenna are fed with external L-Networks and ladder-line.
> I've noticed the doublet is much quieter on 40 than the dipole.
> And I don't know why.
> Could be the dipole has that 100 feet of coax laying on the surface of
> the ground picking up noise.
> while most of the 30 feet of coax feeding the doublet is under ground.
> Could be simply the difference in 30' vs 100' of coax.


-- 

73

Roger (K8RI)


---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus