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JPole antennas for 2m-40m with Wireman-cable
The antennas were tested on 2 m, 6 m, 1 2m and 30 m. The lengths for the bands marked with, have not been tested, try with he given dimensions
post 02 Aug 2024
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Portable Aerial based on the 'Slim Jim', 3/4 wave End Fed Vertical
Here's a cute aerial for portable operation. It's a modified Slim Jim end fed aerial made out of 300-ohm ribbon feeder cable
Realizzazione di una antenna J-POLE VHF UHF
In both VHF and UHF the SWR is about 1: 1 on the portion of band that interests me
Slim JIM 145mhz
The Slim Jim designed by the late Fred Judd G2BCX can be a great portable
A 6m J-Pole Antenna using Ribbon Cable
These antennas were quite popular at one time
80
Here's a cute aerial for portable operation. It's a modified Slim Jim end fed aerial made out of 300-ohm ribbon feeder cable
In both VHF and UHF the SWR is about 1: 1 on the portion of band that interests me
The Slim Jim designed by the late Fred Judd G2BCX can be a great portable
These antennas were quite popular at one time
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