Duplexers

Duplexer and diplexer

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144/430 Duplexer - Schematics for a VHF UHF duplexer
Build a 2 meter duplexer - The duplexer is conservatively rated at 150 watts input, but it should withstand up to 300 watts.
A low cost UHF/VHF duplexer - Duplexers for dual band radio are usually high pass filter and low pass filter combined in the same box. This circuit is a design within a cost of US$10.
Diplexer design notes - Standard diplexer design is based on singly-terminated Butterworth filters.
AA5TB Antenna Coupler / SWR Bridge - Wire antennas requires a special coupling network to properly couple my 50 ohm coax to the antenna's high impedance (5000 ohms)

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VHF-UHF Coupler - Home made V UHF coupler by IK0VWO in italian
[Hits: 2421 | Votes: 3 | Rate: 7.33]
144/430 Duplexer - Schematics for a VHF UHF duplexer
[Hits: 8735 | Votes: 13 | Rate: 4.22]
2 m 70 cm Diplexer - A 2m/440 diplexer
[Hits: 2720 | Votes: 0 | Rate: 0.00]
6m Duplexer project - 50 MHz Duplexer Project by NZ5V
[Hits: 1010 | Votes: 1 | Rate: 4.00]
A low cost UHF/VHF duplexer - Duplexers for dual band radio are usually high pass filter and low pass filter combined in the same box. This circuit is a design within a cost of US$10.
[Hits: 4223 | Votes: 6 | Rate: 6.17]
A Two Meter Duplexer - How to get a cheap-squeaky clean signal, a 2 meter duplexer designed by Leonard WB3AYW
[Hits: 2015 | Votes: 6 | Rate: 5.83]
AA5TB Antenna Coupler / SWR Bridge - Wire antennas requires a special coupling network to properly couple my 50 ohm coax to the antenna's high impedance (5000 ohms)
[Hits: 3669 | Votes: 2 | Rate: 9.50]
Antenna Coupler - Schematics of antenna couplers in french
[Hits: 1128 | Votes: 0 | Rate: 0.00]
Build a 2 meter duplexer - The duplexer is conservatively rated at 150 watts input, but it should withstand up to 300 watts.
[Hits: 5572 | Votes: 3 | Rate: 6.67]
Design 435/145 MHz diplexer filter - This example shows how SERENADE 8.7 can be used for help designing a contiguous lumped element diplexer by HA8ET
[Hits: 1968 | Votes: 10 | Rate: 9.50]
Diplexer - From Wikipedia, the free encyclopedia
[Hits: 1192 | Votes: 4 | Rate: 5.50]
Diplexer 2m 70cm - This DIPLEXER separates 2m from 70cm on the same coax cable, and allows to use 2 antennas over the same cable and permits transmission on one band and simultaneous receiption on the other band by hb9abx
[Hits: 2455 | Votes: 2 | Rate: 2.00]
Diplexer design notes - Standard diplexer design is based on singly-terminated Butterworth filters.
[Hits: 3854 | Votes: 8 | Rate: 5.87]
Diplexer for 2 m/70 cm - Article by Ing. Gyula Nagy, HA8ET
[Hits: 1360 | Votes: 5 | Rate: 9.40]
Diplexer for 2m and 70 cm - Schematics of a homebrewed diplexer for VHF and UHF in german
[Hits: 1659 | Votes: 1 | Rate: 10.00]
Duplex 144 432 - A full duplex antenna system for 144 432 Mhz
[Hits: 1984 | Votes: 1 | Rate: 2.00]
Duplexer for VHF and UHF - Duplexer to use two transceivers and one antenna VHF UHF in spanish
[Hits: 2471 | Votes: 3 | Rate: 7.00]
Duplexers: Theory and Tune Up - Basics on duplexersn type of duplexers and how duplexers works
[Hits: 2014 | Votes: 3 | Rate: 1.33]
Homebewing couplers - This article explain how to build your own antenna coupler with pictures and schematics, in french
[Hits: 1168 | Votes: 1 | Rate: 1.00]
Homemade Diplexer - Make yourself a Diplexer
[Hits: 535 | Votes: 0 | Rate: 0.00]
Homemade duplexer for 2 meter repeaters - QST Article by W1GAN
[Hits: 2190 | Votes: 7 | Rate: 4.29]
Mantaining Antenna Duplexers - Understanding, Maintaining & Re-Tuning Antenna Duplexers
[Hits: 1246 | Votes: 0 | Rate: 0.00]
MicroDuplexer - Learn a little bit about how duplexers work and building your own.
[Hits: 1709 | Votes: 0 | Rate: 0.00]
Six Meter Heliax Duplexer Construction - Duplexer capable of handling a high power 500khz split six meter repeater.
[Hits: 1024 | Votes: 0 | Rate: 0.00]
What's a diplexer? - It's a network that splits a signal to two or more loads, dependent on frequency. It is the simplest form of a multiplexer, which can split a signal into many different signal bands.
[Hits: 1220 | Votes: 0 | Rate: 0.00]

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