sfe radio

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sfe radio

20 links

Antennas : Feed Lines

  • Feeding the Beast - Transferring Radio Frequency Energy from Your Transmitter to Your Antenna by Don Keith N4KC
    [ Hits: 401 | Votes: 1 | Rating: 10.00 ]
Ham Radio : Hamfests
  • KARS Annual Hamfests at Peotone, IL - KARSFEST, held at the Will County Fairgrounds. Sponsored by the Kankakee Area Radio Society. Large and well attended hamfest and computer show!
    [ Hits: 996 | Votes: 1 | Rating: 10.00 ]
Manufacturers : Accessories
  • I0JXX Ham Radio Parts - VHF UHF Amateur radio antenna and antenna parts, accessories for homebrewers, antenna kits, tubes, antenna masts, antenna tripores, insulators, power amplifier mosfet, power splitters by I0JXX
    [ Hits: 1779 | Votes: 2 | Rating: 1.50 ]
Manufacturers : Cable and Connectors
  • Messi e Paoloni - High quality RF coax cables designed for ham radio use featuring high efficiency screening attenuation and transfer impedance.
    [ Hits: 126 | Votes: 1 | Rating: 10.00 ]
Manufacturers : Digital and Packet Radio
  • RACOM - Radio modems - RACOM is a Czech company specialized in design and production of radio modems and other devices for wireless data networks for radio channels from 140 to 900 MHz. RACOM radio data networks are suitable for data transfer in telemetry & SCADA applications, transaction networks, security systems, IP networks and firts of all mobile tracking and fleet management.
    [ Hits: 750 | Votes: 2 | Rating: 9.00 ]
Manufacturers : Software Defined Radio
  • Cross Country Wireless SDR Receiver - SDR Receiver a compact high performance HF software defined radio receiver designed to be used in fixed or portable stations. Version 2 of the receiver is now available. It now has an RF pre-amplifier using a power MOSFET and other revisions to improve it's performance both as a stand alone receiver and as an IF panadaptor with HF and VHF transceivers.
    [ Hits: 2804 | Votes: 54 | Rating: 8.53 ]
Operating Modes : Digital Voice
  • WinDRM - HF Digital Radio Mondiale - WinDRM is the hottest digital mode on HF today! Nothing else exists where you can transfer data at almost 1KB/s without using proprietary hardware. HF Digital Radio Mondiale allow fast data, pictures, and voice over a 2.5Khz bandwidth
    [ Hits: 14237 | Votes: 18 | Rating: 8.39 ]
Operating Modes : Packet Radio
  • Yaesu 920 & SoundCard - This circuit provides an interface between the Yaesu 920 transceiver and IBM computer sound card which allows data transfer and control of PSK31, RTTY, KEYBOARD CW, and SSTV modes for Amateur Radio
    [ Hits: 2209 | Votes: 8 | Rating: 3.99 ]
Shopping and Services : T-shirts
  • MrHamRadio.com - Custom Printed T-Shirts - Custom Design T-Shirt with No Minimum order (you can buy just 1) and NO Setup Fee. Will transfer your Favorite Images from JPEG's and E-mail attachments and from photo prints to Custom T-shirts with unbelievable Crispiness and Clarity of true Color Reproduction. Our image transfer paper is 11.5" x 8" heavy duty industrial grade.
    [ Hits: 992 | Votes: 1 | Rating: 10.00 ]
Software : D-STAR
  • D-RATS - D-RATS is a small application designed to provide data communication capabilities with D-STAR radios. It supports text chatting, file transfers, position reporting and mapping, and much more! It is written in Python using GTK to run on multiple platforms.
    [ Hits: 6500 | Votes: 19 | Rating: 6.64 ]
Software : NBEMS
  • flmsg - Fast Light Message - FLMSG is a simple forms management editor for the amateur radio supported standard message formats. Form data can be transferred between computers either using standard internet email or via radio frequency broadcasts typically made by an amateur radio operator on your behalf.
    [ Hits: 241 | Votes: 0 | Rating: 0.00 ]
Software : Radio Control
  • GBCAT - GBCAT is free PC software for controlling amateur radio devices through a COM/USB port or through a TCP/IP network, with the ability to transfer a 2-way audio signal over a TCP/IP network supporting Yaesu FT-857 FT-817 FT-897, Icom IC-706MKIIG, Kenwood TS-2000 and TS-590S by 9A2GB.
    [ Hits: 2083 | Votes: 44 | Rating: 9.14 ]
Technical Reference : Amplifiers : HF Amplifiers
  • 5-band RF Power Amplifier - This project uses a widely available IRF510 MOSFET, work on HF 80, 40, 30, 20 and 17 meter bands
    [ Hits: 6677 | Votes: 4 | Rating: 6.75 ]
  • 24 MOSFET Class E RF Amplifier - This is a 24 MOSFET Class E RF Amplifier, covering the 80 and 160 meter amateur radio bands.
    [ Hits: 1581 | Votes: 2 | Rating: 4.50 ]
Technical Reference : Amplifiers : RF Amplifiers Theory
  • Homebrewing HF Amplifiers - Thoughts build a solid state legal-limit amplifier for amateur radio use.
    [ Hits: 247 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Amplifiers : VHF Amplifiers
  • VHF Linear Amplifier by SV1BSX - There is not a personal design on this page, just I've transfered useful notes from PHILIPS RF Bipolar Transistors - Data HandBook about BLY89C VHF Power transistor, which is very popular among Amateur Radio homebrewers
    [ Hits: 1254 | Votes: 3 | Rating: 4.00 ]
Technical Reference : Homebrew
  • IK4AUY Sergio - Advanced QRP Low Cost Mosfets HF Linear Amplifier with schematics, IMD, gain data and more. Six articles about amateur radio.
    [ Hits: 3486 | Votes: 27 | Rating: 8.10 ]
Technical Reference : Preamplifiers
  • 144 MHz preamplifier with BF981  pop - Design of a preamplifier for 144 MHz with 1 dB NF and 23 dB gain using BF981. This amplifier is using a low cost silicon MOSFET (BF981 from Philips) to give more than 20 dB gain with around 1 dB noise figure on 2 meter.
    [ Hits: 17220 | Votes: 27 | Rating: 6.00 ]
  • MGF1302 GaAsFET - Published in Radioamater - CQ YU and CQ ZRS magazines, MGF1302 144 MHz and MGF1302 432 MHz
    [ Hits: 7238 | Votes: 6 | Rating: 6.17 ]
  • Homebrew UHF Preamplifiers - Amateur Radio UHF Preamplifiers HJ-FET/GasFet
    [ Hits: 981 | Votes: 4 | Rating: 5.75 ]

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