Hits 

VHF/UHF/HF X-Beam Antenna


On air testing has shown that it is indeed directional,I have a 1.1swr for 144.2 and a 1.8swr for 432.1. 50.125
post 24 May 2024
VHF/UHF/HF X-Beam Antenna

Antenna for UHF VHF Links

155



collineare 900MHz
Per le prove ho utilizzato uno spezzone di cavo RG213, ma qualsiasi altro cavo puo' andar ben

Double 5/8 Flower Pot Antenna
Constructing the antenna using RG59 75 OHM solid dielectric cable and bringing the feed co-axially down through the bottom element as below

Folded dipol for 2 mtr and 70cm

Dual Alford Slot Antenna


23cm Yagi Antenna building

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

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

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