3 band hf

3 band hf

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• 2-Element-Yagis for HF  ^pop - 2-Element parasitic Yagis for the Shortwave-Bands 10-12-15-17-20-30m. The antennas are feeded with the DK7ZB-match. A quarter-wave choke of coax is grounded at the socket.
  [ Hits: 50051 | Votes: 146 | Rating: 7.08 ]

• CobWeb multiband folded dipole - The cobweb antenna it is basically a 5 band antenna comprising of 5 full half wave dipoles for each band - between 10 meters and 20 meters, the antenna is also resonant on 6M and can be modeled even for VHF frequencies.
  [ Hits: 8631 | Votes: 0 | Rating: 0 ]
• The Cobweb HF Antenna - The G3TPW Cobwebb antenna covers five bands, 14 - 28 mhz, including the WARC bands
  [ Hits: 6030 | Votes: 4 | Rating: 6.25 ]

• The GM3VLB 5 Band mini delta beam - HF multiband mini delta compact and easy assembling antenna that cover from 20 to 10 meters by GM3VLB
  [ Hits: 11298 | Votes: 11 | Rating: 6.73 ]

• The DBJ-1 VHF-UHF Dual Band J-Pole - Searching for an inexpensive, high performance dual band base antenna for VHF and UHF ? Build a simple antenna that uses a single feed line for less than $10.
  [ Hits: 6291 | Votes: 5 | Rating: 6 ]

• 1.8 to 21 Mhz Magnetic Loop antenna - Magnetic loops are a compromise antenna and performance will be down on a full size-wire antenna particurlarly on lower HF Bands. This article compare this magnetic loop with a full-sized wire antenna on 80 meters by VK3YE
  [ Hits: 13715 | Votes: 41 | Rating: 6 ]

• 6-Band Windom antenna  ^pop - Theory and construction of a novel trapless center-loaded off-center-fed (cl-ocf) dipole or windom antenna for the 80, 40, 30, 20, 15 and 10m hf amateur radio bands
  [ Hits: 50580 | Votes: 45 | Rating: 6.82 ]
• A Stealthy HF Coat Hanger Antenna - A multiband stealth antenna. Tuner is required. The antenna is made from a $15, 500 ft roll of black #14 insulated stranded wire, about 120 small black wire ties, and maybe 30 or so large black wire ties.
  [ Hits: 7403 | Votes: 5 | Rating: 9.4 ]

• Pedestrian mobile HF antenna - This antenna allow transmission and reception on all bands between 7Mhz and 28 Mhz. Similar in concept to the Miracle Whip by VK3YE
  [ Hits: 2703 | Votes: 2 | Rating: 6 ]
• Short Whip Antenna Tuner - Here is a circuit that will resonate a short whip antenna for the HF Bands.
  [ Hits: 5863 | Votes: 3 | Rating: 4 ]

• US Band Plan by ICOM - ICOM USA Amateur Radio HF VHF/UHF band plan updated to 2008, include a Common Country prefixes in PDF Format
  [ Hits: 3768 | Votes: 9 | Rating: 6 ]

• DD3DJ Sound Samples - Some sound samples of received signals mainly on VHF-band
  [ Hits: 1097 | Votes: 0 | Rating: 0 ]

• 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: 14072 | Votes: 111 | Rating: 6.7 ]

• 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 ]

• Duplexers.eu - We produce duplex filters for 6 m, 2 m, 70 cm, and 23 cm band but also for HF bands. Sella and produce products for Ham Radio Repeaters.
  [ Hits: 1901 | Votes: 1 | Rating: 1 ]

• Russian VHF Trophy - For carrying out of bilateral QSOs on band of 2 meters, 70 and 23 centimeters all kinds of modulation. It is authorized to spend QSOs, using all kinds of passage: TROPO, ES, AURORA, MS, FAI, EME, IONO,
  [ Hits: 652 | Votes: 0 | Rating: 0 ]

• Faros - Windows shareware, automatic NCDXF beacon monitor for Radio Amateurs, SWL'ers and HF communication engineers. by Alex VE3NEA. It continuously monitors 18 NCDXF beacons on five bands, automatically detects the presence of the beacon signals, even in QRM and noise.
  [ Hits: 1420 | Votes: 3 | Rating: 10 ]

• Voice descrambler - This program descrambles band inverted encrypted transmissions, usually found on VHF/UHF. It uses a NCO (numerical controlled oscillator) to re-produce the originally inverted audio band. Use it only if legally permitted in your country. I assume no responsabilities deriving from its use. Standard disclaimer applies
  [ Hits: 13577 | Votes: 38 | Rating: 6.16 ]

• A low cost UHF/VHF duplexer - Duplexers for dual band radio are usually high pass filter and low pass filter combined in the same box. This circuit is a design within a cost of US$10.
  [ Hits: 8615 | Votes: 16 | Rating: 5.88 ]

• Narrow Band-Pass filter for HF - Band-pass filters can be critical components in competitive stations. This setup may help put your station on the map.
  [ Hits: 2563 | Votes: 1 | Rating: 1 ]

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