The tentative,, maybe ok, maybe not, answers. ? At the end of an any characteristic.-Z halfwave transmission line, the termination Z repeats itself -- with a reactance reversal. . Since there is no r
? You have 50 +/- j0 ohms at the position of the SWR meter, and it reads 1.86:1? I don't see how, Mike. - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/amps
Which presumably means an SWR of a bit less than 2 to 1. It is really true that SWR does not change as the SWR meter is moved along the transmission line? - Rich..., 805.386.3734, www.vcnet.com/meas
So if 1/4 wavelength of 93 ohm coax were used intead of 1/2 wavelength of 93 ohm coax, the SWR would still be 1:1?. - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contest
With 1/2 wavelength of 93 ohm coax, the impedance seen by the generator is 50 +/- j0 ohms. What impedance would be the seen by the generator if 1/2 wavelength of 75 ohm coax were used. - thanks - Ri
ok It eliminates reflections only at the halfwave point. Cheers, Mike - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contest
? How do these standing waves remain invisible to the SWR meter at the halfwave measuring point? -thanks. - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/am
the ? Mike -- So your position is that a non-reactive impedance does not repeat on a mismatched halfwave transmission line? - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www
the ? indeed. ? ok ? Even though there is a half wavelength of 93 ohm coax between the gen. and the termination, the system is not 93 ohms. It is 50-ohms at both ends of the half wavelength albeit-m
? My name is Richard or Rich... // Because a purely reactive resistance has zero resistance, Jon. - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.ht
? So even though the Z at the halfwave point is 50 +/- j0 ohms and we are using a 50-ohm meter, there are in fact, standing waves? - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: htt
load Where on the coax? ? they do. - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: am
? the Z presented at the point where the meter is inserted is 50 +/- j0 ohms. How could there be a reflection at this point? - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://ww
the but the ? If "The Z looking into the cable is 50 ohms", how can there be standing waves at that point? later, Mike - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.cont
? True. . However, the meter is not moving along the cable. It is fixed at the generator end of the halfwave transmission line. ? Reflections exist only within the 93 ohm, half wavelength section. -
? The generator Z was never stated. It is zero ohms. ? sorry for the blunder. ? The original questions: "Questions 1 and 2: A 50-ohm termination is connected to a generator through a one-half wavele