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Antennas : Baluns- Switchable MTFT for Wire-Antennas
- A switchable Magnetic Transformer for Transmitting for various impedances
[ Hits: 1211 | Votes: 89 | Rating: 7.98 ]
- Triband Receiving Loop for 160/80/40m
- A receiving only loop antenna for low bands, cover 160 to 40 meters with a remote antenna switch box well described and illustrated in this article
[ Hits: 890 | Votes: 1 | Rating: 10 ]
- All About Antennas
- A free five part series on antennas that covers many aspects of antennas, from radio wave propagation, to feed lines, type of antennas, connectors, adaptors and antenna switches by Bob Grove, publisher of Monitoring Times
[ Hits: 1178 | Votes: 3 | Rating: 7.5 ]
- OZ1CX - Multiband vertical antenna no tuner LC matched
- A 4-Band vertical antenna that needs NO tuner, NO traps. Implement an LC matched on 4 bands with relay switching.
[ Hits: 1005 | Votes: 1 | Rating: 8 ]
- Building a VHF Contest Station
- Building an amateur station for competitive radiosport involves a number of critical steps, regardless of the band or bands you focus on. These include, but are certainly not limited to: Station layout, Equipment interconnection and switching, Inter-station interference, Antenna selection. Radio interface with the logging program, CW and voice keyer integration, Rotator control
[ Hits: 328 | Votes: 1 | Rating: 4 ]
- NMF Technology
- Amateur radio antenna accesories manufacturer, produces four square antenna combiner, antenna controllers, antenna stack match and antenna switches
[ Hits: 153 | Votes: 2 | Rating: 10 ]
- K8UR Phased Array Switchbox
- A Phased Array Switchbox by ComTek founder K8UR, switch your 4-Square in 8 directions and control it remotely over the internet
[ Hits: 317 | Votes: 2 | Rating: 5.5 ]
- Antenna Europe
- Antenna Europe is an Lithuanian ham radio HF antenna manufactured specialized in Quad Antennas. Makers of Cubical Quad Antennas, Yagi Antennas, Antenna switches, Transformers and Robinzon Antennas
[ Hits: 1275 | Votes: 1 | Rating: 1 ]
- CET Technology
- Manufactures Flyback, Switching, Audio, Toroidal, Current Sense & Custom Trasformer, Drumcore & PFC Inductor, Common Mode Chokes.
[ Hits: 136 | Votes: 0 | Rating: 0 ]
- Duracomm Power Supplies
- Power Solutions for Durable Communication Systems. Founded in Sep. 1992, DuraComm Power Supplies is a worldwide recognized leader in ultra-reliable AC-to-DC switch mode power supplies commonly used in the communications industry.
[ Hits: 139 | Votes: 0 | Rating: 0 ]
- Sierra Radio Systems
- Sierra Radio Systems site controllers are used to monitor and control remote radio and equipment sites, often implemented to monitor repeater systems, broadcast equipment, solar power infrastructure, tracking rf power, temperature, voltage, current and switch closure
[ Hits: 129 | Votes: 0 | Rating: 0 ]
- Ameritron RCS-10 Review
- Review of the Ameritron 8 Antenna Remote Coax Switch with SO-239 connectors on 120V
[ Hits: 145 | Votes: 4 | Rating: 7.25 ]
- Baofeng Mic Pin Out and Programming Cable Schematics
- Speaker Microphone Pin Out, Dual PTT Switching,Programming Cables, SMA Antenna Connection, Extended Antenna Threads for Baofeng UV 3, UV 5 Series handheld transceivers
[ Hits: 1071 | Votes: 8 | Rating: 8.75 ]
- A battery for the Byonics TinyTrak4 TNC
- Mint tin transformed into a switched 9v battery to Anderson PowerPole
[ Hits: 213 | Votes: 0 | Rating: 0 ]
- 4x1 WiFi Wireless Antenna Switch for Amateur Radio
- A wifi remote antenna switch that can be controlled from a smartphone app
[ Hits: 1358 | Votes: 4 | Rating: 5.5 ]
- Antenna Switch
- An home made antenna switch with a Dummy Load selector.
If you forget the radio is connected to the open or grounded side of the switch and you try to transmit, it is very easy to damage the finals of your transceiver.
[ Hits: 318 | Votes: 3 | Rating: 8 ]
- Make Your Own Coax Patch Panel
- Homemade coax patch panel for antenna and rig switching
[ Hits: 569 | Votes: 4 | Rating: 7.5 ]
- QRO Coaxial Relay for 50 MHz
- Build a SPDT coaxial relay that can be used as a main Transmit/Receive relay or an A-B switch to select between two different 6m antennas
[ Hits: 361 | Votes: 0 | Rating: 0 ]
- An Inexpensive Microphone Selector Switch
- Take a commercially available switch box intended for switching data lines such as printer cables between two computers, and change out the connectors so that it can be used to switch between two microphones to one transceiver.
[ Hits: 254 | Votes: 1 | Rating: 7 ]
- Repairing HP 8753C VNA
- A true detective story about a interesting repair project, putting back to life a malfunctioning HP 8753C VNA that was rebooting after startup with noise and clicking sounds produced by the attenuator and switch relays.
[ Hits: 94 | Votes: 0 | Rating: 0 ]
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