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  • Radio propagation beacon
    ...on wavelengths of approximate 80 m and 10 m. Many propagation beacons were installed during the International Geophysical Year 1957-1958 These included amateur ..._and_30-50_MHz_FM_Military_Frequencies_In_Use_North_America_USA|military]] base Shuffield (CYSD) in Alberta operates a FM mode [[SINCGARS|military]] VHF FM
    42 KB (6,041 words) - 14:09, 24 March 2023
  • CB
    ...io_Frequencies|militias]] and self-defense security groups (for mobile and base purposes), logging companies, tow truck operators, fishing fleets, doomsda ..."channel 275". American military equipment provided for 10 crystals to be installed at once and selected "on-the-fly" to allow for frequency agility. Many rad
    226 KB (34,731 words) - 17:45, 22 April 2024
  • Common and Precious 3
    ...r some experiements a new impedance matching curcuit was installed in it's base. It's an inductor on a ferrite core that fulfills two requirements: providi
    6 KB (938 words) - 23:49, 27 December 2023
  • Common and Precious 4
    ...ort Vertical (with top capacity) and load coil located 2/3 up the antenna. Installed approx 8m above the ground. 12 radials provide a counterpoise (groundplane) ...ressions to compare a 1/2λ Dipole against a shortened 1/4λ Vertical. The base is fed through a small inductor, which allows fine-tuning of the antenna in
    7 KB (1,116 words) - 22:22, 24 July 2018
  • Nationwide Public Safety Interoperability
    ...OT or Department of Highways motorist assistance agencies having CB radios installed in their trucks for direct communication with and monitoring of trucker and ...ional antennas) solar-power charging stations, solar powered repeaters and base stations for VHF-FM and VHF-AM and other go-kits for setting up an entire r
    35 KB (5,211 words) - 14:07, 22 February 2024
  • ALE
    ...LE use was government and military radio systems, and the limited customer base combined with the necessity to adhere to [[MILSPEC]] standards kept prices ...tly enhanced channel-time efficiency, the existence of a large [[installed base]] of 2G ALE radio systems and the wide availability of moderately priced (o
    34 KB (4,897 words) - 15:57, 28 January 2019
  • Common and Precious 5
    ...radiation of both the inductive and capacitive elemements. The Antenna was installed approx 35m above ground. Matching to 50R+j0 is realised by a simple L/C net ...cal with one load coil at the base together with the match. The Antenna is installed approx 10m above ground. Matching to 50R+j0 is realised by a simple L/C net
    10 KB (1,582 words) - 11:59, 21 February 2024

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