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if you're seeing that beyond 5 khz. either side of center frequency then you might have a problem. in am operation the upper and lower sidebands should not exceed 5 khz..

the original van ordt design lives on. broadbanded? yes. very high gain? typical performance is .5 dB. below your average full size 1/4 λ steel whip, spring & ball while being that much better than a standard 1/4 λ top load, foot-for-foot. this applies specifically to the procomm (QW45) Quad...

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Fox Tango International Yaesu Users Group: http://foxtango.org/foxtango001.htm Fox Tango Library http://www.foxtango.org/ft-library/FT-Library/index.htm Fox Tango Manuals http://www.foxtango.org/ft-library/FT-Library/FT101/FT101.htm

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unfortunately for texas star and their customers, you'll never see 250W out of 4X2SC2879's rated @ 13 dB. (minimum) of gain with only 4W of input. that'll never happen. on the other end of the range, with 4X2SC2879's rated for 15.2 dB. (typical) of gain, 20W input will produce 660W output.

the rating is valid for either cw or pep.

TSDX500V: 4W input, 250W output, 20W input, 500W output.

MadVeteran, sp5it: the swr on the line is determined only by the matching conditions at the load. when conditions at the load change, the standing wave ratio will change. i doubt that anyone you work over the air has noticed any reduction in signal.

16W into 4XSD1446's rated @ 13 dB. gain into a matched load will produce 320W output. (the minimum gain of an sd1446 = 10 dB.) a fairly accurate determination of the gain of the transistors in an amplifier can be made by following the rate of power output compared to power input. using the...

sd1446 transistor device gain and power multiplication factor relative to frequency @ 88 mhz. gain = 9.42 dB. or 8.75X 4W input X 8.75 = 35W output @ 66 mhz. gain = 10.97 dB. or 12.5X 4W input X 12.5 = 50W output @ 50 mhz. gain = 12.43 dB. or 17.5X 4W input X 17.5 = 70W output @ 30 mhz...

"does a lower SWR actually help with TX and RX signal?" sometimes it does, sometimes it doesn't. in this particular instance in regard to the antennas previous mounting location, i would say your tx and rx signals should be much improved. let us know.

well sirio was kind enough to give us the length of the reflector @ 5740 mm. from the manufacturer (if not altered) that puts the reflector @ a length of 18.832 feet. since we know that the typical increase in length for the reflector over the driven element is 5% we can work backwards from the...

element lengths for 27.000 mhz. reflector element = 19.133 feet or 19 feet 1.59 inches driven element = 18.222 feet or 18 feet 2.66 inches director element = 17.310 feet or 17 feet 3.75 inches element lengths for 27.385 mhz. reflector element = 18.864 feet or 18 feet 10.36 inches driven...

is that the SY 27-3?

HB9CV: https://www.dxzone.com/catalog/Antennas/HB9CV/ The HB9CV-Beam is a 2-Element-Yagi with two driven elements and was introduced by Rudolf Baumgartner, HB9CV, in the 1950ies. The Beam is a coax-fed version of the ZL-Special. The reflector is fed 225° out of phase. The distance between the...

welcome to the forum Pete.

"Is resonance really where you get best antenna performance?" the importance of resonance in an antenna system: 1.optimizes current and voltage. 2.makes the antenna much easier to feed. 3.indicates frequenc/y/ies where the load represents a pure resistance. 4.establishes the center of the band...

NANOVNA Made Simple : for cb use: start = 26.965, stop = 27.405

that's the 23 channel model. more information from this forum here: https://www.worldwidedx.com/threads/courier-gladiator.202953/