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

Mosfet 75W Power Amplifier
Integrated Circuits
Six LED Stereo VU Display
QPSK Demodulator Is A Good Match For Low-Cost Modulator
connecting voltmeter and ammeter
10A H-Bridge Motor Controller Circuit
V3.0 MS Build With Pics
Dual AC radio remote control switch circuit diagram
By the UCM-40-T and 74LS00 ultrasonic transmitter circuit consisting of NAND gate b
Valve Tube Audio/Modulation Amplifiers 15W and 35W



Top