Hits
4 element yagi for 11m
The Antenna is an antenna model for 27.305 mhz. band of 11 meters, gamma match It will be manufactured with a 1/2 "aluminum tube and a piece of coaxial RG8 of 79 cm will be inserted inside
post 08 Feb 2024
Antenna CB 27 MHz Links →
HB9CV 2 elem. 27.000 mhz
The HB9CV antenna or Swiss antenna is a fully fed antenna with two elements in the form of two unequal length dipoles
HB9CV 2 element yagi for 11 meter
The idea is to get an small antenna, this is a great solution. The HB9CV antenna is smaler than a 3el. conventional Yagi but you get the same gain and caracteristics
How does a CB radio antenna work?
CB portion of the spectrum begins at 25.01 megahertz, so a full wavelength antenna would be a bit more than 39.34 feet long
How to build a SWR meter for 27 mhz
The transformer is made of 3 copper lines on a PCB, each of them 65mm long
80
The HB9CV antenna or Swiss antenna is a fully fed antenna with two elements in the form of two unequal length dipoles
The idea is to get an small antenna, this is a great solution. The HB9CV antenna is smaler than a 3el. conventional Yagi but you get the same gain and caracteristics
CB portion of the spectrum begins at 25.01 megahertz, so a full wavelength antenna would be a bit more than 39.34 feet long
The transformer is made of 3 copper lines on a PCB, each of them 65mm long
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
30 Volt Computer Power Supply Stack A bonus was that i discovered that these did not need a standby load connected to the supply to keep them running just apply mains power and close the Start lead to ground