Home |
Search |
Today's Posts |
|
#1
![]() |
|||
|
|||
![]() "Andy Cogswell" SHORECOGS at COMCAST DOT NET wrote in message ... I bought an MFJ-269 from KC7SLO in September last year. When it arrived, I tested it and found that the UHF portion did not display the correct SWR. I tested it with 3 different UHF antennas. It works fine everywhere else. The problem was that although on the air tests with the antennas all showed them with low SWR in the proper frequency ranges, the analyzer told me on every one that they all had wavy SWR patterns. For example: 415mhz 1.7, 420mhz 2.5, 423mhz 1.2, 431 2.1, etc... It was obvious that the analyzer was displaying the wrong SWR on every antenna. What makes you think the antennas don't exhibit that SWR at those freqs? (Not being obnoxious, just curious ...) Carl - wk3c |
#2
![]() |
|||
|
|||
![]() "Carl R. Stevenson" wrote in message ... What makes you think the antennas don't exhibit that SWR at those freqs? (Not being obnoxious, just curious ...) Carl - wk3c Because I did on the air tests with my watt meter and found that the SWR is only good in the rated portions for each antenna. Besides, if these antenas were as broadbanded as the analyzer is saying, the manufacturers would be selling these antennas for more than I paid for 'em. |
#3
![]() |
|||
|
|||
![]() "Carl R. Stevenson" wrote in message ... What makes you think the antennas don't exhibit that SWR at those freqs? (Not being obnoxious, just curious ...) Carl - wk3c Because I did on the air tests with my watt meter and found that the SWR is only good in the rated portions for each antenna. Besides, if these antenas were as broadbanded as the analyzer is saying, the manufacturers would be selling these antennas for more than I paid for 'em. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Antenna impedance analyzer comparison | Antenna | |||
Looking for help with an HP 8554B spectrum analyzer plugin | Equipment |