hf power

hf power

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• DCTL Portable Antenna - A Low -Power, Distributed Capacitance Twisted Loop , indoor portable HF antenna by Monty Northrup, N5ESE
  [ Hits: 2159 | Votes: 2 | Rating: 10 ]

• Understanding Standing Wave Ratios SWR - We worry a lot about Standing Wave Ratio (SWR) in amateur radio since SWR is one indication of how well our antenna system is working. Most HF transceivers and antenna tuners have built in SWR meters. SWR is a measure of a transceiver' s output power verses the portion of that power reflected by the antenna system
  [ Hits: 8719 | Votes: 8 | Rating: 4.75 ]

• Getting started in contest - A PowerPoint presentation by Bruce Draper, AA5B on how to get started in contesting, no matter if you are a big gun or a little pistol
  [ Hits: 955 | Votes: 1 | Rating: 1 ]

• HB9FX Internet Remote Base JN37XH Hochwacht Zofingen Switzerland - Online web receiver powered by OpenWebRX based in Switzerland. You can isten between 10kHz - 10GHz frequencies. Receiver is operated by HB9BHU Rig VLF/HF/VHF: Airspy HF+, Magnetic Loop/Discone Rig SHF X-Band LNB, RTL-SDR, Stacked Slot Antenna
  [ Hits: 14071 | Votes: 111 | Rating: 6.7 ]

• OM Power - HF Amplifier - Strong RF HF power amplifiers made in europe ! Output 2,5KW 4KW PEP, 160m to 10m.
  [ Hits: 8674 | Votes: 26 | Rating: 7.27 ]
• BEKO Elektronik - VHF power amplifiers made in germany
  [ Hits: 3561 | Votes: 6 | Rating: 5.83 ]
• RFAC Solutions - RF Connectors Cable Assembly Attenuators Filters High Power VHF Amplifiers, Adapters MMCX MCX SMA SMB SMC BNC TNC N from RFAC Solutions
  [ Hits: 1351 | Votes: 3 | Rating: 9 ]
• Discovery Power Amplifiers - The Discovery series of amplifiers are designed and built in the UK by Linear Amp UK Ltd, one of the world's leading amplifier manufacturers, specializing in high power RF tube amplifiers. The amplifiers use large GS31 or GS35 ceramic triode tubes. Band coverage 6m, 2m and 70 cms
  [ Hits: 3038 | Votes: 2 | Rating: 4 ]
• DanAmps - Danish Amplifiers for Hams - HF and VHF RF Power amplifiers for ham radio use
  [ Hits: 4864 | Votes: 5 | Rating: 7.2 ]

• RF HAMDESIGN - An engineering oriented organization specializing in the design and manufacture of high performance parabolic antennas, 3dB high power RF couplers, Antenna power splitters, directional RF couplers and more items for RF transmission from HF through Microwave frequencies.
  [ Hits: 1616 | Votes: 5 | Rating: 9 ]

• Jetstream - Antennas, base mobile scanner and vhf antenna, coax cables, coax switch, Lightning Arrestor, mounts, power supply, speakers and wattmeters
  [ Hits: 5662 | Votes: 5 | Rating: 4.8 ]

• HF Antennas for restricted space - Arrl document about invisible antennas and indoor systems. It is important to consider that few compromise antennas are capable of delivering the performance one can expect from the full-size variety. But the patient and skillful operator can often do as well as some fellows who are equipped with high power and full-size antennas. The "cliff-dweller" may not be able to "bore a hole" in the band as often, and as easily, but DX can be worked successfully when band conditions are suitable.
  [ Hits: 9199 | Votes: 7 | Rating: 5.28 ]

• N1IBC Eimac 4CX1500B HF Power Amplifier - 1500 Watt HF power amplifier
  [ Hits: 5034 | Votes: 6 | Rating: 3.83 ]
• VE6FI 4-1000a amplifier - 15-160 meters HF power amplifier
  [ Hits: 3282 | Votes: 4 | Rating: 9.25 ]
• IK5MEN HF amplifier 10-160m. - Italian page including pictures schematics diagrams of an home made linear amplifier using four EL509 in parallel. Output power is about 700W.
  [ Hits: 4990 | Votes: 6 | Rating: 3.5 ]

• Low power VHF RF amplifier - Low power VHF RF amplifier with VMP1 Mosfet by IZ1BTS IK1XPD
  [ Hits: 2228 | Votes: 5 | Rating: 8 ]

• HamShield for Arduino - HamShield is a powerful VHF UHF transceiver that lets your Arduino talk to far away people using ham radio bands
  [ Hits: 1087 | Votes: 2 | Rating: 4 ]

• A low cost dummy load - This article describes a low-cost, low-to-moderate power dummy load, which presents a 50-Ohm resistive load from HF through 440MHz.
  [ Hits: 7759 | Votes: 8 | Rating: 5.75 ]

• SV1BSX Homebrew Corner - Offer a wide range of homebrewing projects mainly for VHF UHF operations. From vhf antennas to preamplifiers, chargers and power supplies
  [ Hits: 1514 | Votes: 9 | Rating: 9.78 ]

• Hight voltage power supply - High Voltage Supply for GS 35B Amplifier
  [ Hits: 2229 | Votes: 6 | Rating: 9.33 ]

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