Slim-Jim material and dimensions (ladder line, twin-lead)

[MM0FMF]

1/2 watt from Cyrn-y-Brain

In reply to MM0FMF: See Wireman-J-Pole and search for his 2m measurements and diagram. I have the following lengths for my version. A = 130cm B = 42cm C = 3cm My gap is only 5mm not 10mm. I used the transparent 300 ohm flat twin feeder from Maplin and feed with approx. 5m of RG174 (quite lossy). It’s built as per the website but with my lengths. Hanging free in the shack from a light fitting with the feeder partly coiled and partly draped over the junk in here, my MFJ259B says 145.5MHz SW…