vhf coverage

vhf coverage

Antennas : Halo

• 144 MHz Halo Antenna - This halo antenna was built to have an omnidirectional coverage while working in VHF contests.
  [ Hits: 3025 | Votes: 6 | Rating: 5 ]

• Calculating Your Radio Horizon - The range and coverage of your VHF transceiver will be limited to your radio horizon. How to calculate the visual horizon and how to determine the Radio Horizon
  [ Hits: 755 | Votes: 5 | Rating: 5.4 ]

• A Dual Band VHF/UHF J Pole - This antenna provides continuous coverage of the 2 metre (144-148MHz) and 70cm (430-450MHz) bands and is an excellent choice for base station use.
  [ Hits: 2284 | Votes: 17 | Rating: 6.83 ]

• An automatically tuned 7 to 30 MHz mobile antenna - For every radio amateur who loves to travel by car, a mobile installation soon becomes a necessity. While in inhabited areas there is usually some coverage of VHF repeaters, in many other places VHF radios are useless. In these very places, HF can provide reliable contacts, and a lot of fun, from anywhere.
  [ Hits: 259 | Votes: 1 | Rating: 10 ]

• How does antenna height affect VHF communications - How to calculate range for a VHF antenna with a simple formula and how to increase VHF coverage.
  [ Hits: 634 | Votes: 2 | Rating: 9 ]

• Shelby Amateur Radio Club's VHF Emergency Net - Shelby amateur radio club's VHF emergency net is open to all within the repeater's coverage area. 146.880 and 147.345 are the repeater frequencies. Shelby Radio Club is the sponsor of the Shelby hamfest.
  [ Hits: 871 | Votes: 9 | Rating: 8.67 ]

• WebSDR from Russia - WebSDR located in Volgodonsk, Rostov Region, Russian Federation LN17CM currently providing VHF amateur radio bands coverage.
  [ Hits: 4294 | Votes: 58 | Rating: 5.83 ]

• 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 ]

• Repeaters in Ecuador - Frequency, location and coverage of repeaters in Ecuador.
  [ Hits: 972 | Votes: 3 | Rating: 3.67 ]

• QRadioPredict - Radio propagation prediction and simulation tool for VHF-UHF, based on the Irregular Terrain Model, also known as Longley-Rice. Can be used as a repeater site planing tool and radio coverage analysis. Currently it works on Linux and Windows.
  [ Hits: 4835 | Votes: 11 | Rating: 5.36 ]