rf power
273 links - and 9 categories
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Antennas : Feed Lines- To transform ot not to transform - Feed Lines
- Transmission lines have many uses other than simply transferring RF power from one point to another.
Impedance matching, baluns and filters are probable the most common of these.
[ Hits: 137 | Votes: 0 | Rating: 0 ]
- 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: 511 | Votes: 1 | Rating: 10 ]
- 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 ]
- SG Laboratory Ltd
- Transverter for 13 cm 23 cmd and 33 cmd band. 23 cm RF power amplifier, RF power amplifier for 2.4 GHz for the QO-100 satellite. Popular for the 1296 MHz transverter
[ Hits: 276 | Votes: 0 | Rating: 0 ]
- Ameritron AL-811 Panel Meter Lights
- A solutiom for the Ameritron AL-811(H) RF power amplifier, burnt panel meter lights.
A common failure with the Ameritron AL-811 and similar amplifiers is that the panel meter lights burn out prematurely. These bulbs are usually integrated into the actual panel meter.
The solution for this is to provide the meter backlighting with LEDs.
[ Hits: 1167 | Votes: 2 | Rating: 5 ]
- IC7300BKT Icom IC-7300 CAT Control
- Windows PC control program for the Icom IC-7300 transceiver. Power-on and Power-off by software BktNetInterface for JTDX and WSJT-X, audio recording, memory management, cw keyer management, Interface for other software
[ Hits: 461 | Votes: 2 | Rating: 7 ]
- Using the FT-817 with the RM K300P RF AMP
- Direct experience of portable operations of the FT-817 transceiver by Yaesu and the small power amplifier by RM Italy with 300W output
[ Hits: 329 | Votes: 0 | Rating: 0 ]
- 2.3GHz to 432MHz RX converter for FT-817
- A very small receiver converter that can be plugged to the backside of the battery powered portable transceiver FT817 from Yaesu. A high performance receiver for 2.3GHz amateur radio signal
[ Hits: 223 | Votes: 3 | Rating: 1.67 ]
- 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: 191 | Votes: 0 | Rating: 0 ]
- DesignSpark - RS Online
- DesignSpark PCB is a free PCB design tool, by rs online, designed to help the user to convert their design into PCB faster with unique design options. DesignSpark is a powerful software engine that enables you to capture schematics and design PCB boards and layouts.
[ Hits: 71 | Votes: 0 | Rating: 0 ]
- The DxDozer
- Ultimate HAM Radio LogBook for Windows for both beginners and experienced Dxers. It features several functions like complete logbook with powerfull search capabilities, FT8 and LoTW integrations, DX cluster. Cat Interface to control your radio, licence is based on yearly subscription.
[ Hits: 196 | Votes: 2 | Rating: 9.5 ]
- 100 Watt RF Power Amplifier for 2 GHz
- Modification to an old cellular phone base station modules, with a fairly reduced output power (10 watts or so), the stock power amplifier modules will cover the 2.3 GHz and 2.4 GHz amateur radio bands.
[ Hits: 160 | Votes: 0 | Rating: 0 ]
- A Compact 600W Broadband HF Power Amplifier
- A 600W 1.8 MHz to 54 MHz power linear amplifier made using rugged MRF300 transistors featuring output power between 580W and 750W depending on band, power supply: 48V, 18A typical, 20A max
[ Hits: 596 | Votes: 6 | Rating: 7.33 ]
- 600W LDMOS Power Amplifier
- A comeplete home made 600W LDMOS RF power amplifier. Settings can be made on a 7-inch touch screen, and on this screen you can see a lot of useful information during operation, such as output power, temperature, SWR, and so on. The power amplifier includes 2 MRF300 LDMOS FETs and several built-in sensors. The amplifier also contains several types of protection functions like too high current, too high swr, too high temperature, etc.
[ Hits: 870 | Votes: 1 | Rating: 10 ]
- 432 MHz 100W RF Power Amplifier
- This article describes the construction of a 100-Watt, 70 cm amateur band linear power amplifier. It is the result of a protracted period of experimentation during which I investigated a number of final amplifier stages from obsolete UHF FM 2-way radios.
[ Hits: 232 | Votes: 1 | Rating: 9 ]
- 100W UHF Linear Amplifier
- This page details my building of a 100 Watt Power Amplifier for the 432 MHz Band based on two Motorola MRF646 transistors taking inspiration by Carlo Gnaccarini VK3PY, formerly VK3BRZ
[ Hits: 192 | Votes: 0 | Rating: 0 ]
- 70cm Beacon
- PLL synthesized 70cm CW beacon exciter. The exciter is built arround a slightly more advanced ADF-4351 single chip PLL synthesizer rather then (among amateurs) more popular Si-570 or Si-5351 integrated circuits. The exciter is capable of providing up to 250 mW of RF output power,
[ Hits: 127 | Votes: 1 | Rating: 10 ]
- Coax Loss Calculator Online by K5VR
- RF Feedline (Coax and Ladder-Line) Loss and ERP Calculators made with Javascript.
This complex feddline loss calculator has already several line types paramenters for most common coaxial cables from Belden, Time LMR, Wireman and other common products. Result will give Matches loss, SWR loss, dB and Watts power loss.
[ Hits: 249 | Votes: 2 | Rating: 5 ]
- Gimme Five - QRP SSB Transceiver
- Gimme Five reloaded, a compact 5 band QRP SSB transceiver in SMD technology. This unit covers 5 bands within the amateur radio spectrum (3.5, 7, 14, 21 and 28 MHz). Receiver is a single conversion unit with an interfrequency of 9 MHz. Transmitter uses 5 stages and has got a power level of 10 watts PEP output.
[ Hits: 284 | Votes: 1 | Rating: 10 ]
- Setting up Raspberry Pi for Ham Radio
- An interesting guide to installing software on a Raspberry for amateur radio use.
This documentation cover the Raspberry Pi 4 version that whose hadware is powerfull enought to fullfill all requiriements for ham radio programs.
[ Hits: 396 | Votes: 3 | Rating: 9.33 ]
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