A good antenna that can be used for the car as well as the house is an HALO. This antenna maintains good omni-directional horizontal polarization. Basically the antenna is a half wave dipole bent into a circle,BUT shorter than a dipole for this frequency. The circumference is 60-70 inches. By useing the gamma match (see
Use a 54” piece of 450 ohm Ladder line. Cut out 3 inches of the center part of the ladder line. Solder a PL-259 on the bottom of the Ladder Line (both side of the ladder line will solder on the ground side of the PL-259 – this is used for the shorted part of
Mars Cap and freeband modification for the VX-7R transceiver
I recently had a conversation on the radio with another Ham who had built a 6 Meter wavelength band “J” antenna. He was getting some rather strange performance from this design, so I asked him where or how he had come up with the antennas dimensions. He referenced an Internet web page to me where
This article reports the results of searches performed on the G5RV antenna. As stated in several articles concerning the G5RV antenna an specially in old French books written by R.A. Raffin, F3AV and R. Piat, F3YX and more recently. Unfortunately years have passed and I only kept in memory that at the bottom of the
Antenna data, and design note for this horizontal loop antenna resonating on 80 Meters by K0ZE
The information in this article has come from many amateur sources, the most notable was from WA6TEY (sk 1985) Ray Frost, who was a pioneer of VHF Quad designs and one of the best Southern California Transmitter Hunters of the 1980’s. Ray built hundreds two meter quads in single and paired configurations as well as
Dimensions for the inverted V antenna from 160 to 2 meters by N6JSX
This modification has been found on the net. Please use at your own risk. WARNING: Improperly performed modifications can severely damage your adio. I have performed these modifications successfully, but I offer no guarantee or warranty for them. Proceed at your own risk. TOOLS NEEDED: 1) Small philips-head screwdriver 2) Tweezers 3) Magnifying glass 4)
The mirror-image J-Pole is very easy to construct and requires only two T-Fittings plus a length of copper pipe.To visualize the antenna, one must only picture a 3 half-wavelength vertical and a 2 quarter-wavelength vertical positioned a few inches away from and centered on the the tall vertical. Construction of the mirror-image J-Pole is accomplished