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The 70-centimeter amateur band also provides a wider spectrum than the 2-meter band (in the U.S., this is 30 MHz of spectrum, compared to only 4 MHz on the 2-meter band). [2] This allows for many more channels, accommodating fast scan television , wideband digital modes, and point-to-point linking, which may not be permitted on 2-meter and ...
Repeaters are found mainly in the VHF 6-meter (50–54 MHz), 2-meter (144–148 MHz), 1.25-meter band (1 1 ⁄ 4 meters) (220–225 MHz) and the UHF 70 centimeter (420–450 MHz) bands, but can be used on almost any frequency pair above 28 MHz. In some areas, 33 centimeters (902–928 MHz) and 23 centimeters (1.24–1.3 GHz) are also used for ...
Used as base station antennas for land mobile radio systems such as police, fire, ambulance, and taxi dispatchers, and sector antennas for cellular base stations. Curtain array A curtain array is any one of several designs for large, directional, long-distance, broadside transmitting array antennas used at HF by shortwave broadcasting stations.
A Yaesu FT-857D tuned to 50.125 MHz, the traditional 6-meter single-sideband calling frequency in the United States. [1] The 6-meter band is the lowest portion of the very high frequency (VHF) radio spectrum (50.000-54.000 MHz) internationally allocated to amateur radio use. The term refers to the average signal wavelength of 6 meters. [a]
The selection has to be made per band (HF, 6, 2 m or 70 cm) using menu selection. The BNC connector is the antenna connector chosen when the relay is bypassed. A 70cm signal path goes through a high pass filter network, through the RF directional coupler/power detector (not on rx) to a low pass filter to a PIN-diode. In rx mode, these are ...
160m – 6m 4.5 SSB / AM / FM Yes Xiegu G90 [54] Commercial 160m – 10m 20 CW / SSB / AM / (FM experimental with low sound quality) Yes Elecraft KX3 Kit or assembled 160 – 6 meter ham bands / wide band RX 0.1 – 10 CW / SSB / AM / FM / digital modes Yes Yaesu FT-818, Yaesu FT-817(ND) Commercial