After giving the shack the full RFI treatment, results are simply amazing on each band, watch me tune around, the signals are so dynamic, crisp and loud and the noise floor low. I have a Hexbeam at 11.5m for 20m and Resonant 80m and 40m dipoles, sloping from 18m to 11m. Both HF and LF antennas have FB31-1020 Ferrite beads at the feed point.
I am running with the AGC off, as this also maximises the Signal to Noise on weaker signals. The audio is from the modest extension loudspeaker to the left of the radio.
This is the RFI treatment, you can see full details on www.qrz.com/db/gw4bvj
1. RG400 coax with 12 turns around an FT240-31 Ferrite Toroid on the radios Main Antenna Output to my MFJ 4-way Antenna Switcher.
2. Built and installed Ian GM3SEK's Whole Shack Mains Filter.
3. Many FT240-31's with 12 turns on, on every lead in and out of the radio.
4. 40cm x 40cm x 1.5mm Copper Sheet under the Radio strapped to real earth and another sheet linked under my Laptop and Winkeyer.
The combined effects are amazing. 73 Rich GW4BVJ
25 июн 2021
