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powiązane z: ham radio antenna bridgeWide Range Of Antenna Types Including Single-Band, Dual-Band, Vertical, & More!
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Determine if your antenna is too long or too short, measure its resonant frequency, and its resistance to 500 ohms. It`s the easiest, most convenient way to determine antenna parameters. Resistance bridge, null meter, tunable oscillator-driver (1.8 to 30 MHz).
18 kwi 2020 · Antenna tuners (more accurately referred to as “transmatches”) make great homebrew projects; they are reasonably simple to build and, when finished, provide a useful piece of equipment. Every shack should have (at least) one.
3 lut 2014 · Unlike an SWR meter, the noise bridge, requires little or no transmitted power applied to the antenna. The SWR meter works by measuring the reflected wave from the antenna back to the transmitter when a transmission is made.
1 sie 2014 · A noise bridge makes broadband noise and feeds it through a bridge circuit to a receiver. It is first calibrated to a known, desired resistance, (say, 50 ohms) then the “unknown” load is connected.
Determine if your antenna is too long or too short, measure its resonant frequency, and its resistance up to 500 ohms. It's the easiest, most convenient way to determine antenna parameters. Resistance bridge, null meter, tunable oscillator-driver (1.8 to 30MHz). 9 VDC or 110 VAC with MFJ-1312D.
Antenna Measurements with the MFJ-202B RX Noise Bridge - Calibration and Applications in Measurement of an Antenna and Zip Cord Transmission Line. Noise bridge utilities spreadsheet.
Amateur Radio, Antenna Theory, Homebrew Antennas, Hidden and Stealth Antennas, CC&R's, and Antenna restriction.
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powiązane z: ham radio antenna bridgeWide Range Of Antenna Types Including Single-Band, Dual-Band, Vertical, & More!
