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Dipolo rotativo per i 21 MHz


Realizzare un dipolo rotativo per i 21 MHz, partendo da un dipolo commerciale per i 14 MHz
post 19 Dec 2021


Antenna 15m 21 MHz Links

24



2 Eement. FOR 10-12-15MT
Poles are 5 mt length 21 mhz I use four bamboo poles for each element

3 Element Yagis Antennas for HF
Use the DK7ZB-match with 2x75-Ohm-coax for the 28-Ohm-Yagis and 2x50-Ohm-coax for the 12,5-Ohm-Yagis

Delta Quad
2 elements driven in phase inversion, single band for 15 m

10 m| 12 m| 15 m|
17 m 20 m| 2 m|
23 cm| 30 m| 40 m
6 m| 70 cm| 80 m| 160 m| 136 khz
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