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Query: dualband
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A simple and cheap dualband j-pole antenna for 144 and 430 MHz -
Homebrew a j-pole 2mt and 70 cm antenna project. Make it cheap. This article includes homebrewing instructions, parts lists, tools needed and printable documentation. -
The beam has only one feedpoint with 50 Ohm and has an open-sleeve element for 12 m by DK7ZB -
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An home made dual band antenna by DL5DBM Anwar -
A portable dualband dipole robust and compact antenna usable for horizontal and vertical polarisation by ON6MU -
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PA5DD version of the dual band yagi antenna for 50 and 70 Mhz -
On this page is the design for Dual Band 2M / 70cm antenna with 3.2mm elements. The antenna has a 50 ohm designed driver. This Yagi has a unique element called a Open Sleeve -
A homemade VHF/UHF vertical antenna made essentially with RG58 coax cable, with a 9 turns choke balun to prevent the shield acting as a RF Radiator. -
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Nobleradio an American Hamradio transceiver and receiver manufacturer, maker of a DualBand Multimode VHF transceiver for 6 and 4mtrs. -
A travel, or a fixed vertical coax antenna originally designed by PA0FBK. This antenna is very easy to make from a piece of 50 ohm or 75 ohm coaxial cable, and can be either smooth, roll-up version, or rigid cable -
A review of the baofeng dualband handheld transceiver -
A ham radio home made preamplifier for 50 MHz and 70 MHz bands -
This project involves constructing a dual-band Moxon antenna, optimized for ham radio enthusiasts, with functionality on both the 10-meter and 6-meter bands. The antenna is designed to operate using a single 50-ohm feedpoint, acting as a mini-beam on 28 MHz (10 meters) and as a 2-element Yagi on 50 MHz (6 meters). Performance-wise, it offers a 4.0 dBd gain on 10 meters and 4.3 dBd on 6 meters, with impressive front-to-back ratios of 30 dB and 11 dB, respectively. Builders like Aleks (S54S) and Marcio (PY2OK) have successfully brought this design to life using the provided specifications. Aleks noted that bending the corners of the structure proved especially useful during assembly. The project comes with a detailed parts list, highlighting the use of aluminum tubes with different diameters and lengths to form essential components like the reflectors and radiators. For those looking to fine-tune the antenna, adjustments can be made by altering the length of certain parts that fit into larger tubes. The feeding system is equipped with a balun to accommodate different power levels, making the design versatile enough to handle outputs of either 300 watts or 1 kilowatt.