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649 links and 1 categories about om power on dxzone.com

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Antennas : Feed Lines
  • Feeder Radiation - Connecting centre fed antennas, dipoles, yagis, rhombics, loops to coaxial cable, unless care is taken, it is not difficult to end up with feeder radiation resulting in power loss and the radiation characteristics changes
    [ Hits: 1523 | Votes: 1 | Rating: 1.00 ]
Antennas : Theory : Antenna Gain
  • Antenna Gain to ERP - A radio's transmitting power can be concentrated along the horizon by use of a GAIN antenna. Although you may still be transmitting with four watts of power, your effective radiated powerwill be greatly increased. This table shows the effects of antenna gain on a transmitter with 4 watts of transmit power.
    [ Hits: 1162 | Votes: 4 | Rating: 4.50 ]
Antennas : Tuners
  • HF VHF mini antenna tuner - A small antenna tuner project that cover from 3 to 150 Mhz with a max power of 50 watts by ON6MU
    [ Hits: 3710 | Votes: 7 | Rating: 8.14 ]
DX Resources : Beacons : 10 meter beacons
  • VA3GRR - Radio Beacon - VA3GRR is a radio beacon, operating on the 10 meter amateur band. Its frequency is 28.205.5 MHz. It runs just under 5 watts of power into a vertical half-wave ringo style antenna
    [ Hits: 252 | Votes: 1 | Rating: 10.00 ]
DX Resources : Beacons : Beacon stations
  • WA8YWO - High Frequency Expermental Beacon "WV". The Beacon operates on the frequency of 13.55567mhz. This Beacon is very low power. It operates under Part 15 of the FCC Rules and Regulations. It transmits with only 1.5 milliwatts of power
    [ Hits: 224 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Amplifiers
  • Emtron - HF Linear amplifiers and power supplies manufacturer
    [ Hits: 2434 | Votes: 1 | Rating: 1.00 ]
Manufacturers : Power Supply
  • DICL - Customized Power Supply - Design and manufacture switching power supply for global customers in many field , such as industry , medical , radio , telecome
    [ Hits: 457 | Votes: 0 | Rating: 0.00 ]
Manufacturers : QRP Kits
  • KD1JV Designs - QRP Kits and Projects for the low power Amateur Radio enthusiast
    [ Hits: 2201 | Votes: 0 | Rating: 0.00 ]
Radio Equipment : HF Transceivers
  • Yaesu FT-102 page - Relay substitution tutorial, power amplifier tuning and Technical Characteristics
    [ Hits: 607 | Votes: 2 | Rating: 4.00 ]
Radio Equipment : HF Transceivers : ICOM IC-756
  • Icom IC-756 PRO Repair - Repair of a 756pro that was powering up always on TX due to some damage in the ACC1 connector area
    [ Hits: 778 | Votes: 2 | Rating: 4.00 ]
Radio Equipment : HF Transceivers : Icom IC-706
  • ICOM IC-706MKIIG Tech Note - If your IC-706MKIIG will not power up without even hearing a relay click, check the state of the HV line.
    [ Hits: 2166 | Votes: 9 | Rating: 7.22 ]
Radio Equipment : HF Transceivers : Yaesu FT-817
  • 5 Amp power supply for portable usage - A 13,8v/5Amp 78H05 based power supply for portable use. In this example used to power up a Yaesu FT-817
    [ Hits: 6240 | Votes: 4 | Rating: 4.75 ]
  • The KA7OEI FT-817 pages - FT-817 Radio Modifications, Improving the FT-817 Noise Blanker, increasing output power, using rechargeable cells, epanding frequency range
    [ Hits: 801 | Votes: 0 | Rating: 0.00 ]
Shopping and Services : Test equipment
  • Alliance Test Equipment - Alliance Test buys and sells used network analyzers, spectrum analyzers, function generators, mulitmeters, probes, optical power meters, calibrators, attenuators, testers, and more from Tektronix, Fluke, Rhode & Schwarz, Advantest, LeCroy, Fujikura, California Instruments, NetTest, Keithley, Actrena / TCC, Instek
    [ Hits: 249 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Amplifiers
  • RF Amplifier basics - Introduction to RF power amplifiers. Basics and guidelines. by wb0nni
    [ Hits: 1447 | Votes: 1 | Rating: 1.00 ]
Technical Reference : Amplifiers : HF Amplifiers
  • Amplifier for 15 and 17 meter band - The two linear amplifiers are ment for use with QRP SSB/CW/FM/AM transmitters on the amateur bands 15 and 17 meters can be powered from a 12 volt DC supply by ON6MU
    [ Hits: 1317 | Votes: 0 | Rating: 0.00 ]
  • A GS-35B Amp For HF - The Show and Tell amp, a GS-35B RF power amplifier for HF being built by W4ZT
    [ Hits: 2486 | Votes: 1 | Rating: 10.00 ]
Technical Reference : Amplifiers : VHF Amplifiers Technical Reference : Power Supply
  • Power supply from 3 to 30 V with an L200 IC - This was written by dl5dbm, Anwar von Sroka
    [ Hits: 2382 | Votes: 16 | Rating: 5.25 ]
  • Power Supply Design - A home learning tutorial on the basics of designing simple power supplies for radio projects by VK2TIP
    [ Hits: 2069 | Votes: 0 | Rating: 0.00 ]
  • HV power supplies - WV0NNI 2,800 VDC @ 2 Amps Continuous Variac adjusts filament voltage. A voltage doubler circuit, well suited for smaller, compact linear amplifiers.
    [ Hits: 1150 | Votes: 1 | Rating: 5.00 ]
  • 30 Volt Computer Power Supply Stack - What do you do with a bunch of old computer power supplies?
    [ Hits: 2627 | Votes: 4 | Rating: 7.50 ]
  • Multi-functional Power Supplies - Two types of multi-functional Home-brew 6/8Amps - 20 Ampere variable power supplies by ON6MU
    [ Hits: 1564 | Votes: 3 | Rating: 8.67 ]
  • 12/20 Ampere power supplies - Two types of home-brewed 12/20 Ampere 13,8volt power supplies, including detailed part lists by ON6MU
    [ Hits: 7280 | Votes: 7 | Rating: 5.57 ]
  • Astron RS35m Power Supply Schematic - Astron RS35m Power Supply Schematic annotated with Notes from QST Hands-On Radio, "Experiment #35Power Supply Analysis" PDF File
    [ Hits: 7427 | Votes: 29 | Rating: 8.14 ]
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