Re: Topband: RF choke/balun

That could be true, but for several years my inverted L (86 feet up and 68 feet out, over 1.5 miles of in-ground radials) is significantly less noisy on receive than my 270-foot center-fed dipole sloping (intentionally) from 83 feet to 7 feet. Your comments please. 73, Charles, W2SH

Topband: 160/80 vertical

Hello everyone In On4un low band DXING book there is a antenna I would like to try This antenna is in the vertical section in my old copy on page 9-26 fiqure 9-32 This antenna consists of a vertical section of 27 meters with 4 radials 27 meters using a cap and a coil to switch between 160 and

Re: Topband: RF choke/balun

Unless you like listening to noise you don't use an inverted L on 160 (or 80) for receiving. Rob K5UJ On Sat, Sep 16, 2017 at 6:58 AM, Arthur Delibert wrote: > I think that’s right if the only issue is your own transmit signal bouncing > back from the antenna junction and

Re: Topband: RF choke/balun

I think that’s right if the only issue is your own transmit signal bouncing back from the antenna junction and traveling along the exterior of the feedline. But for receiving, I think a choke at each end of the feedline is important unless you’re in an exceptionally low noise location. K9YC

Re: Topband: RF choke/balun

To get the best performance from your choke, K9YC recommends you make a coil of about 7" diameter from memory. His document has lots of curves to choose the best assembly. David G3UNA - Original Message - From: "MR TREVOR DUNNE" To: "topband List"

Re: Topband: RF choke/balun

Hi Thanks for the replies, no I will be using radials on the ground, amount unknown, Thanks Trevor EI2GLB - Original Message - From: "Mike Waters" To: "MR TREVOR DUNNE" Cc: "topband List" Sent: Friday, 15 September,