nc vhf radio

nc vhf radio

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• Exploring The J-Pole Antenna - The J-Pole antenna is a common omnidirectional antenna used in amateur radio, particularly on the VHF and UHF bands. This article is an attempt to explore how the J-pole antenna transforms feed-line impedance to free-space impedance, all the while providing gain found only in the more expensive commercial products.
  [ Hits: 143 | Votes: 0 | Rating: 0 ]

• Build a twin-lead Lindenblad Antenna for 70cm and 2m - This document contains the detailed instructions to build a homemade lindenblad antenna using a twin-lead as dipole elements. This document contains 9 pages and includes a detailed construction sequence and some drawings to build this antenna for UHF and VHF ham radio bands
  [ Hits: 1279 | Votes: 3 | Rating: 8.67 ]

• Homebrew Bicone Antenna Project - Homebrewing a vhf bicone antenna with 8 clothes hangers and 4 feet of Sch40 non-metallic rigid conduit
  [ Hits: 553 | Votes: 1 | Rating: 6 ]

• IAT Interactive Antenna Table - IAT is an excel sheet table evaluate parameters of VHF UHF antennas edited by Vladimir UR5EAZ. The difference between this tool and the existing VE7BQH Antenna Table is the use of G / T and C / N instead of the G / Ta parameter. In this table, Vladimir applies the ITU recommendations to assess the noise properties of a radio receiving system and shows the advantage of the G / T concept over the G / Ta concept when choosing an antenna.
  [ Hits: 106 | Votes: 4 | Rating: 9.5 ]

• Collins 618F-1A VHF Aircraft Transceiver - Restoring a 1965 Collins 618F-1A VHF aircraft radio. This radio was designed for light aircraft as an early frequency-synthesized radio built in 2 separate chassis.
  [ Hits: 313 | Votes: 2 | Rating: 10 ]

• Maine 2 Meter FM Simplex Challenge, VHF Contest, Wireless Society of Southern Maine - The Maine 2 meter FM Simplex Challenge is a ham radio contest primarily designed to give 2 meter operators a chance to compete on an even basis, and have fun doing it.
  [ Hits: 102 | Votes: 0 | Rating: 0 ]

• Building a VHF Contest Station - Building an amateur station for competitive radiosport involves a number of critical steps, regardless of the band or bands you focus on. These include, but are certainly not limited to: Station layout, Equipment interconnection and switching, Inter-station interference, Antenna selection. Radio interface with the logging program, CW and voice keyer integration, Rotator control
  [ Hits: 333 | Votes: 1 | Rating: 4 ]

• Central States VHF Society - The Central States VHF Society, Inc. (CSVHFS) is a not-for-profit organization chartered in the state of Missouri. It was begun in the mid-1960s to foster amateur radio operation on the bands above 50 MHz.
  [ Hits: 55 | Votes: 0 | Rating: 0 ]

• R3KBO EB104.ru Amateur Radio Products - R3KBO is an amateur radio club producing and developing amateur radio kits and assembled products including HF VHF Power Amplifiers or RF Power Kits and amplifier parts, low pass filfers, band pass filters, sourge protections, splitters and combiners, antenna switches
  [ Hits: 513 | Votes: 1 | Rating: 10 ]

• TYT Electronics - TYT Electronics boasts of 15-year experience in two-way radio manufacture. Produce DMR transceivers, handhelds, receivers and mobile radios, analog amateur radio and commercial VHF transceivers
  [ Hits: 542 | Votes: 1 | Rating: 8 ]

• HF Operations: The Difference with HF - A complete guide on using the HF amateur radio bands, and the differences with VHF, using filters, influence of solar weather, the split mode and phonetic alphabets.
  [ Hits: 335 | Votes: 2 | Rating: 8.5 ]

• Ham Radio: Using Repeaters - The most basic form of repeater receives communication on one frequency and re-transmits at a different frequency. This is known as duplex communication. Repeaters are generally set up to operate with FM modulation on the amateur bands within the VHF (30 MHZ – 300 MHZ) and UHF frequencies (300 MHZ – 3 GHz). These are generally the frequencies used by handheld and mobile devices.
  [ Hits: 92 | Votes: 1 | Rating: 8 ]

• Using a Baofeng handheld to work Satellites - How to program Baofeng handheld transceiver with satellite frequencies, and how to get alerts when satellites are visible by using a smartphone app. A beginners guide to work satellites with a common VHF handheld radio.
  [ Hits: 545 | Votes: 5 | Rating: 8.2 ]

• Tropospheric Ducting Forecast Europe - The areas noted in the forecast have the necessary atmospheric conditions to produce tropospheric bending of VHF, UHF and/or microwave radio waves. Tropospheric bending extends the range of radio & TV stations well beyond their normal limit and thus increases interference amongst stations as well.
  [ Hits: 157 | Votes: 1 | Rating: 10 ]

• Icom IC-2720H One Page Operating Guide - An operating guide for the com IC-2720H VHF/UHF Radio, includes Turning the power On or Off, Selecting the Output Power, Activating Memory Mode, Operating in Memory Mode
  [ Hits: 409 | Votes: 0 | Rating: 0 ]

• Scanning frequencies - HF digital mode transmissions, voice transmissions in HF and VHF Bands collected in several XLS files by Relic Radio communications
  [ Hits: 138 | Votes: 0 | Rating: 0 ]

• ARTIC Contest Log Checker - Artic is a program dedicated to amateur radio contest log checkers, mainly in Italian offers log checking function for VHF contests like IAC in Italy and SWAC in Switzerland
  [ Hits: 122 | Votes: 1 | Rating: 10 ]

• Olinca TH-888 SV8 Programming Software - Free windows software to program or reset cara ht olinca th888a and th888S th888 th10 th2100 th2uv th9 handheld VHF UHF two way radios
  [ Hits: 632 | Votes: 14 | Rating: 6.07 ]

• Ethernet RFI noise reduction - How to reduce and eliminate the RF interference at VHF caused by the wired network
  [ Hits: 589 | Votes: 1 | Rating: 7 ]

• Cross Band Repeaters - Crossband Repeating is a process where a Ham transmits one signal on one band (typically UHF), and it is received by another radio with a better antenna/power installation, and re-transmitted (typically on VHF) to another radio system, or a repeater. Everyday examples of cross-band repeaters are repeater receive sites that hear the input signals on 2m and retransmit those signals on a frequency higher than 220 MHz.
  [ Hits: 207 | Votes: 0 | Rating: 0 ]

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