Vipor mutant portable HF/VHF/UHF


Posted on Nov 28, 2012

Most of us don`t have the luxury of building a 1/4, 1/2 or even a 5/8 wavelength vertical antenna for HF. We have to settle for something a little shorter. (A lot shorter, in the case of people following the FCC`s Part 15 rules, which limit them to 3 meters in size.) Shorter vertical antennas can give acceptable (but not spectacular) performance.


Vipor mutant portable HF/VHF/UHF
Click here to download the full size of the above Circuit.

I needed a highly (HF) portable antenna to use with my FT-817 which should have the highest possible frequency range (also VHF) and still compact enough to take along almost anywhere! The antenna should be versatile enough to allow further experimenting,




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Cold Atom Control System for PC
IF Amplifier using NE592
Telephone DTMF decoder Display
Stud-finder
20Khz-arc-welding-inverter
Proximity Camera Head (A2047) Manual
More debugging of the NRI 832
Ultrasonic Sensor Circuit
op amp ringer circuit old telephone
AMU2481 Audio Mixer
USB Switch For Printers



Top