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The inductive output tube (IOT) or klystrode is a variety of linear-beam vacuum tube, similar to a klystron, used as a power amplifier for high frequency radio waves. It evolved in the 1980s to meet increasing efficiency requirements for high-power RF amplifiers in radio transmitters. [ 1 ]
Dual-mode GMRS/FRS equipment is also approved in Brazil (GMRS only in simplex mode, GMRS frequencies 462.550, 467.550, 462.725, 467.725 are not allowed) [8] and most other South American countries. Portable radios are heavily used in private communications, mainly by security staff in nightclubs and malls, but also in private parking ...
EC71/5718 – Subminiature UHF triode up tp 1 GHz, for use as an oscillator in the 500 MHz range, 8-pin all-glass wire-ended; EC80/6Q4 – VHF Triode up to 500 MHz; EC81/6R4 – UHF oscillator triode; EC84/6AJ4 – High-mu triode; EC86/6CM4 – UHF triode, PC86/4CM4 with a different heater; EC88/6DL4 – UHF triode, PC88/4DL4 with a different ...
A valve RF amplifier (UK and Aus.) or tube amplifier is a device for electrically amplifying the power of an electrical radio frequency signal. Low to medium power valve amplifiers for frequencies below the microwaves were largely replaced by solid state amplifiers during the 1960s and 1970s, initially for receivers and low power stages of ...
The range to the target is found by measuring the difference in bearing of the two telescopes and solving the skinny triangle. Solutions can be obtained automatically, using tables or, rarely, manual calculation. The greater the distance to the target, the longer the baseline needs to be for accurate measurement.
The co-ordination of HQ radio frequency channels in the NATO-harmonised UHF-band, the design of the so-called HQ hop-sets, is provided in NATO-Europe in responsibility of the NATO Allied Radio Frequency Agency (ARFA) in Brussels. For training and exercises, HQ operates in peacetime mode with limited frequency access. Four net-numbers may be ...
Related: Sydney Couple 'Targeted' in 'Double Murder' Over Possible 'Financial Debts' as Second Body Is Found: Reports Officers responded to the scene just after 2 p.m., and the 17-year-old was ...
Stereoscopic rangefinder atop the bridge of the German cruiser Admiral Graf Spee Portable stereoscopic rangefinder with binoculars from WWII. A stereoscopic rangefinder or stereoscopic telemeter [1] is an optical device that measures distance from the observer to a target, using the observer's capability of binocular vision.