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A 3 element beam Band six meter
2 simple antenna projects for 6 meter fun designed for easy and inexpensive construction
post 12 Sep 2024
Antenna for UHF VHF Links →
70cm-Longyagis
The elements have 10 mm, 8 mm or 6 mm diameter, because this is very uncritical and you get the expected datas! For the tuning let the radiator 2mm longer and cut for best SWR at 432 MHz
70Mhz-Yagis
The Yagis have 12,5-Ohm resistance use the DK7ZB-match with 2xlambda/4 50Ohm coax or 28-Ohm
7-Element-Yagis stacked for the 2m-Band
These yagis and groups were designed with YO7.23 from K6STI and checked with EZNEC from W7EL. With a gain of 14/17/20dBd
3 element yagi beam 50 MHZ
SWR regulation with harpin system
8 Element Wideband Yagi for 70-cm
It's a scaled down version of the 144 MHz ultra wideband yagi produced by Rutland Arrays. The antenna design was optimized for broadband performance using YAGIMAX software
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The elements have 10 mm, 8 mm or 6 mm diameter, because this is very uncritical and you get the expected datas! For the tuning let the radiator 2mm longer and cut for best SWR at 432 MHz
The Yagis have 12,5-Ohm resistance use the DK7ZB-match with 2xlambda/4 50Ohm coax or 28-Ohm
These yagis and groups were designed with YO7.23 from K6STI and checked with EZNEC from W7EL. With a gain of 14/17/20dBd
SWR regulation with harpin system
It's a scaled down version of the 144 MHz ultra wideband yagi produced by Rutland Arrays. The antenna design was optimized for broadband performance using YAGIMAX software
23cm Yagi Antenna building Finished antenna at 1275 MHz SWR under 1:1.5 at resonant frequency
50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection
Interface-for-digital-broadcasts-with-integrated-audio 4-port HUB, with a TUSB2046. With port 1 of the HUB we drive the FT232RL; with port 2 the PCM2904, furthermore, we decided to leave ports 3 and 4 free