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  2. Signal strength and readability report - Wikipedia

    en.wikipedia.org/wiki/Signal_strength_and...

    A signal strength and readability report is a standardized format for reporting the strength of the radio signal and the readability (quality) of the radiotelephone (voice) or radiotelegraph (Morse code) signal transmitted by another station as received at the reporting station's location and by their radio station equipment. These report ...

  3. R-S-T system - Wikipedia

    en.wikipedia.org/wiki/R-S-T_system

    The S stands for "Strength". Strength is an assessment of how powerful the received signal is at the receiving location. Although an accurate signal strength meter can determine a quantitative value for signal strength, in practice this portion of the RST code is a qualitative assessment, often made based on the S meter of the radio receiver at the location of signal reception.

  4. Amateur radio frequency allocations - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_frequency...

    The 2015 ITU World Radiocommunication Conference (WRC-15) approved a new worldwide frequency allocation of 5.351.55.366.5 MHz to the amateurs on a secondary basis. The allocation limits amateur stations to 15 watts effective isotropic radiated power (EIRP); however some locations will be permit up to 25 W EIRP .

  5. QSL card - Wikipedia

    en.wikipedia.org/wiki/QSL_card

    The International Amateur Radio Union and its member societies recommend a maximum size of 3 + 1 ⁄ 2 by 5 + 1 ⁄ 2 inches (90 by 140 mm). [5] N1D-QSL Card Athens Radio Club, Athens, Georgia, 2022. The QSL card used by HAM club in College of Engineering, Trivandrum, Kerala in India, during mid 1980s. The club is not active now.

  6. Amateur radio repeater - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_repeater

    Repeater frequency sets are known as "repeater pairs", and in the ham radio community most follow ad hoc standards for the difference between the two frequencies, commonly called the offset. In the USA two-meter band, the standard offset is 600 kHz (0.6 MHz), but sometimes unusual offsets, referred to as oddball splits, are used. The actual ...

  7. 60-meter band - Wikipedia

    en.wikipedia.org/wiki/60-meter_band

    Prior to WRC-15, all 5 MHz Amateur allocations made by individual administrations were in accordance with Article 4.4 of the ITU Radio Regulations, which requires non-interference with other radio services. Where two-way amateur radio communication is authorized on 60 m, it has generally been within the frequency range 5250–5450 kHz, but the ...

  8. Baofeng UV-5R - Wikipedia

    en.wikipedia.org/wiki/Baofeng_UV-5R

    Frequency range [1] 136–174 MHz 400–520 MHz: Frequency steps 2.5–50k Hz Transmitter power output: 5 W PEP: Waveforms (modulations) FM: modulation rate: Power input Receiver only 20 mA, Transmitter 1 A max. Operating voltage 6.5 – 9 V, Nominal voltage 7.2 V: Measurements and weight High 140 mm Width 70 mm Depth 30 mm Weight approx. 400 grams

  9. National Traffic System - Wikipedia

    en.wikipedia.org/wiki/National_Traffic_System

    A net is nothing more than a time of day and a radio frequency where the appropriate group of amateur operators can meet to send the messages on their way. ARRL Radiogram traffic typically begins and ends its journey at local nets, often through nearby repeaters. Local nets typically involve city or county-wide coverage on VHF (2-metre band) or ...

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