rf switch
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Antennas : Beverage- Beverage switch-box
- A home made Beverage system for portable use. The goal was to switch between 4 single Beverage antennas without interfering on the other receiving stations.
[ Hits: 115 | Votes: 1 | Rating: 8 ]
- Reversible RG6 Beverage Antenna
- The author describes building a reversible Beverage antenna for low-band receive applications. He details the construction process, challenges faced, and initial performance testing. The antenna uses coaxial cable and transformers for switching direction. Overall, the author is pleased with the results and plans to build additional reversible Beverages.
[ Hits: 21 | Votes: 0 | Rating: 0 ]
- Outdoor 80m/40m bands Magnetic loop antenna
- No matching adjustments needed. Directly perfect match to 50 Ohms using a remotely switched wideband transformer
[ Hits: 225 | Votes: 0 | Rating: 0 ]
- 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: 335 | Votes: 1 | Rating: 4 ]
- Hofi
- Hofi Hochfrequenztechnik, RF switches, antenna tower and antenna manufacturer, owner of the versatower and fritzel brand names based in Germany
[ Hits: 352 | Votes: 2 | Rating: 6.5 ]
- R3KBO EB104.ru Amateur Radio Products
- R3KBO is an amateur radio club producing and developing amateur radio kits and assembled products including HF VHF Power Amplifiers or RF Power Kits and amplifier parts, low pass filfers, band pass filters, sourge protections, splitters and combiners, antenna switches
[ Hits: 513 | Votes: 1 | Rating: 10 ]
- RemoteShack.com
- Manufacture remote control interfaces to manage several kind of ham radio transceivers, Antenna rotators and antenna switches. Control can be done using smartphone Apps or from Computers.
[ Hits: 522 | 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: 130 | Votes: 0 | Rating: 0 ]
- MikroTik
- MikroTik is a Latvian company which founded in 1995 to develop routers and wireless ISP systems. Wifi Routers, router boards, switches, interfaces and enclosures.
[ Hits: 344 | Votes: 1 | Rating: 10 ]
- Icom 706MK2G Repair
- After years of reliable performance, a 26-year-old Icom 706MK2G exhibited an unusual deviation during FM transmission, with the actual frequency being 10kHz off from the displayed frequency. Additionally, the power meter showed a sharp dip during transmission. Upon investigation, it was discovered that the FM VCO voltage adjust variable had become dirty and sluggish over time. By adjusting the variable capacitor and cleaning it with switch cleaner, the issue was resolved, restoring stable power output and accurate frequency transmission.
[ Hits: 18 | Votes: 0 | Rating: 0 ]
- Hamtech
- HAM-made engineering products supplies and produces coaxial relays, antenna switches, sequencers, roller inductors, variable capacitors, low noise preamplifiers, RF power rotary switches and coil bodies.
[ Hits: 192 | Votes: 0 | Rating: 0 ]
- Homebrew 1 Watt 2.4 GHz Power Amplifier
- This will show you how to add a RF power amplifier to your Proxim Symphony for under $50. The cost is reduced by using the existing components on the Symphony, such as the PIN diode switch, and just inserting a higher power final amplifier.
Increase the RF output power of your wireless network card to 1 Watt.
[ Hits: 159 | Votes: 4 | Rating: 6.5 ]
- IC-7300 Arduino Based Antenna Switch
- An Arduino Based Antenna Switch For The IC-7300 that monitors the band voltage from the rear accessory socket on the IC-7300. Two RF antenna relays are used to switch to the appropriate output.
[ Hits: 124 | Votes: 0 | Rating: 0 ]
- RF Coaxial Switch
- An interesting rf coaxial switch project capable of handling 800-1500 W. This is a cheap home made RF coaxial switch in use by PA0FRI
[ Hits: 423 | Votes: 2 | Rating: 4.5 ]
- AVR Butterfly Keyer
- The Atmel AVR Butterfly is a credit card sized board which contains an AVR MEGA169 processor, a six character LCD display, a five way joystick navigation switch, a piezo speaker, a 3 volt lithium battery cell for power and a few other odds and ends.
[ Hits: 683 | Votes: 0 | Rating: 0 ]
- Notes on Bird Electronics Equipment
- Information on equipment manufactured by the Bird Electronic Corporation, wattmeters, RF loads, switches by I0JX
[ Hits: 1237 | Votes: 0 | Rating: 0 ]
- Repairing switchmode power supplies
- Notes on the Troubleshooting and Repair of Small Switchmode Power Supplies
[ Hits: 541 | Votes: 1 | Rating: 2 ]
- The Rock-Mite CW Kit
- The Rock-Mite is a 40m CW kit offered by Small Wonder Labs . It features built-in keyer, direct conversion receiver with a crystal RF bandpass filter, 500 milliwatts of power, and switchable frequency offsets to work around QRM
[ Hits: 1157 | Votes: 0 | Rating: 0 ]
- IC706MKIIG Interface
- Interfacing the IC706MKIIG for Soundcard & TNC modes
[ Hits: 566 | Votes: 0 | Rating: 0 ]
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