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  2. File:GMRS and FRS Frequency Spectrum Chart.svg - Wikipedia

    en.wikipedia.org/wiki/File:GMRS_and_FRS...

    File:GMRS and FRS Frequency Spectrum Chart.svg. ... Correction to GMRS power level 462 MHz interstitial (2 to 5 watts) 22:01, 24 March 2022: 512 × 640 (12 KB)

  3. General Mobile Radio Service - Wikipedia

    en.wikipedia.org/wiki/General_Mobile_Radio_Service

    The General Mobile Radio Service (GMRS) is a land-mobile FM UHF radio service designed for short-range two-way voice communication and authorized under part 95 of the US FCC code. It requires a license in the United States, but some GMRS compatible equipment can be used license-free in Canada. The US GMRS license is issued for a period of 10 years.

  4. Personal radio service - Wikipedia

    en.wikipedia.org/wiki/Personal_radio_service

    For a time dual-standard FRS and General Mobile Radio Service (GMRS) radios were available, that could be operated without individual licensing on the FRS channels, but which required a license to operate on the GMRS frequencies at a power level above the FRS standard. In May 2017 the regulations were changed so that FRS service included ...

  5. Overtones tuning - Wikipedia

    en.wikipedia.org/wiki/Overtones_tuning

    The open-string notes form a C major chord, which is the triad (C,E,G) having the root note C, the major third (C,E), and the perfect fifth (C,G). When the guitar is strummed without fretting even one string, a C-major chord is sounded. By barring all of the strings for one fret (from one to eleven), one finger suffices to fret the other eleven ...

  6. List of amateur radio transceivers - Wikipedia

    en.wikipedia.org/wiki/List_of_amateur_radio...

    Frequency ranges (MHz) TG-UV2 Handheld 88–108MHz (RX Only) 136–174MHz 400–470MHz TG-UV2 Plus Handheld 88–108MHz (RX Only) 136–174MHz 350–390MHz (RX Only) 400–470MHz 470–520MHz (RX Only) UV-K5 Handheld 136–174MHz

  7. Pythagorean tuning - Wikipedia

    en.wikipedia.org/wiki/Pythagorean_tuning

    The so-called "Pythagorean tuning" was used by musicians up to the beginning of the 16th century. "The Pythagorean system would appear to be ideal because of the purity of the fifths, but some consider other intervals, particularly the major third, to be so badly out of tune that major chords [may be considered] a dissonance." [2]

  8. Open C tuning - Wikipedia

    en.wikipedia.org/wiki/Open_C_tuning

    The open-string notes form a C major chord, which is the triad (C,E,G) having the root note C, the major third (C,E), and the perfect fifth (C,G). When the guitar is strummed without fretting any strings, a C-major chord is sounded. By barring all of the strings for one fret (from one to eleven), one finger suffices to fret the other eleven ...

  9. List of guitar tunings - Wikipedia

    en.wikipedia.org/wiki/List_of_guitar_tunings

    The term also expresses the fact that, compared to Major chord open tunings, by fretting the lowered string at the first fret, it is possible to produce a major chord very easily. [14] Cross-note or open E-minor was used by Bukka White and Skip James. [15] Cross-note tunings include (low to high): Cross-note A: E-A-E-A-C-E