WebBest. Zanzibar_T_Cricket • 3 yr. ago. Yes, the tuner in the 991 is HF only. For VHF/UHF, you are using the VHF/UHF output, which isn't connected to the tuner stage. If you are registering low SWR in the VHF/UHF side, that antenna is tuned and you should see full power output. The HF tuner will only correct for swr to about 3:1. WebDec 9, 2015 · At 100 MHz, the loss is 0.14 dB per hundred feet. The input to the antenna will be 8,511 watts. If the antenna reflects 250 watts the VSWR at the antenna will be 1.41:1 with a return loss of 15.3 dB. But the meter at the transmitter will show a VSWR of 1.34:1 or a return loss of 16.7.
How to Correctly Use an SWR Meter: A Full Guide
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Dipole antenna height affects SWR : r/amateurradio - Reddit
WebThe internal SWR meter is in between the tuner and the transmitter. The tuner creates a 1:1 match with the transmitter, so the internal SWR meter reads 1:1 (or close to that). If you add a SWR meter in between the tuner and the antenna, then that SWR meter will read the SWR between the tuner and the antenna. WebTest protocol: An open location such as an empty parking lot or tree-free field. The radio held in your hand and up to the face as it is normally used. A proper field strength meter placed a few meters or more from the antenna. The MFJ-801 2M/440 Field Strength Meter ($39) will do … WebOur Antennas. TV Antennas. SWCBR (Cavity Back Resonator) SWCVL ... Clarion Series (High Power Slot) FM Antennas. FM1 Series (Low Power) FM3 Series (Medium Power) FM10 … radio japonesa hitsujikai