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The ARRL handbook presents the results of a comparative study of the All Band HF Doublet constructed as a flat top doublet and as an inverted 'V' configuration. Conclusion was that both configurations offer a practical and flexible antenna with the flat top representing a superior low angle radiation pattern due to its general greater height ...
The All Band HF Doublet Mk3 is a 42-meter-long Inverted 'V' antenna, with an apex of 11 meters above the ground. It is designed to be a versatile antenna for all bands ranging from 160m to 10m. Description:
10 mar 2020 · Because of the low losses at high SWR, you can use the doublet as a multi-band antenna. As a portable antenna, it’s hard to beat, especially as an inverted vee. Use a tree branch or telescopic pole to hoist up the center, tie off the ends, and you’re in business.
The All Band Doublet configured as a 'T' Antenna. The main HF antenna is an All Band Doublet fed with ladder line and matched with a T-Match antenna tuner including a 1:4 current balun that gives access to all HF bands including the 160m band.
5 dni temu · The Big Zapper HF Antenna. 1. Uses 96 feet quarter wave, or per leg. Copper wire (solid) preferred is AWG #14 or #12. Width is 192 feet total. 2. Uses 65 feet matching stub, feeding with 450 ohm ladder line, and 14 gauge is standard specification. 3. For best results, installation should be at height of 40 feet minimum.
The classic doublet , one of the best all rounders for HF multiband antennas, if you could only have one antenna, the doublet has to be in the top pick for most hams for good reason. Its simple, its efficient , its multiband, its quiet noise wise and its low cost .
