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Antenne folded 70cm 2mt
For 70cm 32,3 cm, for 2m 95,8cm
post 11 Oct 2024
Antenna for UHF VHF Links →
Antenne Discone
Omnidirectional, vertically polarized and with gain similar to a dipole, it is exceptionally wideband, offering a frequency range ratio of up to approximately 10:1.
Build your yagi antenna 30 MHZ a 900 MHZ
This antenna is very adapted at VHF and UHF domain inside 30 MHZ to 900 MHZ
Dual bander handy yagi
The final design balances performance and size,the elements for both bands are interlaced and mounted in parallel
Design of matching transformers for 3 stacked Yagi antennas
3 vertically stacked antennas often represents a good compromise between increased antenna gain, mechanical feasibility and satisfactory handling
Portable Antenna Covers 6m-10m-11m-12m-15m-17m-20m
Mobile, Portable, Base station, Marine, EMCOMM, MARS/CAP, ARES, SATERN, RACES, First Responders, Emergency Preparedness, Skywarn, Military
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Omnidirectional, vertically polarized and with gain similar to a dipole, it is exceptionally wideband, offering a frequency range ratio of up to approximately 10:1.
This antenna is very adapted at VHF and UHF domain inside 30 MHZ to 900 MHZ
The final design balances performance and size,the elements for both bands are interlaced and mounted in parallel
3 vertically stacked antennas often represents a good compromise between increased antenna gain, mechanical feasibility and satisfactory handling
Mobile, Portable, Base station, Marine, EMCOMM, MARS/CAP, ARES, SATERN, RACES, First Responders, Emergency Preparedness, Skywarn, Military
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