Somewhat less HF interference by moving the antenna away / 2017-04-24

2017-04-24 Somewhat less HF interference by moving the antenna away1 month ago
I was testing with noise on all radio bands with the LW-10 longwire antenna with tuner. I recently made the rope that hangs it out from the window a bit longer and I noticed the noise on the 10 meter amateur radio band had dropped a lot compared to the noise I experienced before and the noise on the antenna under our roof. In S-points: under the roof S8, with the 10/20/40m endfed S8, and with the longwire antenna S0.

On bands with lower frequencies (higher wavelengths) noiselevels were high, up to S9+ on 80m with a rattling noise in it. But this sudden change on the 10 meter band made me think there could be a pattern so I measured how much more distance I could move the antenna away from the house and maybe get lower noise levels on the 20m band too. After adding 1.60 meter of rope and rehanging the antenna the noise level on the 20 meter band also dropped from S8 to S7. Not the biggest improvement but it's something.

I'm now making some PSK qso's on the 20 meter band. At the S8 noise level this was getting impossible.

Tags: ,

, reachable as koos+website@idefix.net. PGP encrypted e-mail preferred.

PGP key 2C66 3B5D F0D7 C263 local copy PGP key 2C66 3B5D F0D7 C263 via keyservers pgp key statistics for 0x2C663B5DF0D7C263 Koos van den Hout
RSS
Other webprojects: Camp Wireless, wireless Internet access at campsites, The Virtual Bookcase, book reviews, Weather maps
This page generated in 0.009219 seconds.