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HB9CV-Antenna for 2 m 6 m and 10 m
When compared to two-element antennas of conventional design, it can be assumed that the HB9CV gain of approximately 4.2 dBd 1 is about the same as that of classic beam / reflector and radiator / director combinations
post 27 Mar 2024
Antenna for UHF VHF Links →
Dual Band Half-Wave Flower Pot Antenna
The Flower Pot antenna can be readily modified to dual band
2 meter ssb yagi plans for sideband fun
Optimized using 144.250mhz as the center frequency which is in the middle of the SSB portion of the 2 meter band
2 Meter Slim Jim Antenna
This 2 Meter 300 Ohm Slim Jim antenna is constructed from regular 300 ohm twinlead
Vhf and Uhf Flowerpot Antenna
The antenna is constructed from rg58/u coax 22mm plastic plumbing
Diy a helical antenna for 432-435
diy a 14-turn home-made helical antenna for 432/435mhz
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The Flower Pot antenna can be readily modified to dual band
Optimized using 144.250mhz as the center frequency which is in the middle of the SSB portion of the 2 meter band
This 2 Meter 300 Ohm Slim Jim antenna is constructed from regular 300 ohm twinlead
The antenna is constructed from rg58/u coax 22mm plastic plumbing
diy a 14-turn home-made helical antenna for 432/435mhz
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