Greetings All I am getting fed up with multiple trips between new antenna matching stations and the tx-source/VSWR and not converging on a good match in quick order ! Please send me - OFF LINE - your
I don't have time to write off-list replies to questions that have general interest, so I'm responding on the list. I suspect that the solution to your problem is a combination of 1) better understan
Same here. :-) My "quick and dirty antenna analyzer is still a 10+ year old MFJ-259B. I I was also going to suggest an MFJ-259B (what I use), but it doesn't cover the entire freq range specified. It
Hi Dick, I have an AA-54 and its the best hand held antenna analyzer I've ever owned. 73 Frank W3LPL -- Original Message -- Greetings All I am getting fed up with multiple trips between new antenna m
73 Dick/w7wkr CN97uj Most or all of these devices are intolerant of strong AM BCB signals. If you have BCB stations within 10 or 15 miles, try to borrow one to see if it works for your situation bef
Try SARK-110 http://www.sark110.com/home beats others mostly hands down. 73, Martin, OK1RR Dne 27.3.2016 v 21:08 dick.bingham napsal(a): Greetings All I am getting fed up with multiple trips between
I also have AA-54 analyzers. There is no comparing the MFJ-259B to the AA-54. The rig expert unit runs circles around the MFJ in so many ways. Once you use an AA-54 I will guarantee that you will nev
Maybe a dumb question but how can you tell the resonant freq with the AA-54. I have one and can do the graph and see where it dips to the lowest but havent figured out how to find the resonant freq o
Grant has a good list of possibilities in his post. Some newer ones I haven't tried yet. SWR is an extremely limited measurement to analyze antennas. I have had many correspondences with hams led off
Is the lowest SWR is the resonant frequency? Resonant frequency is when Xl=Xc. When Xl=Xc is not necessarily the lowest SWR. 73 Lou KE1F On 3/27/2016 8:30 PM, Robert Harmon wrote: Maybe a dumb questi
Exactly right. If, for example, the antenna's feedpoint impedance at resonance is different from the feedline impedance, or if the analyzer impedance does not match the feedline impedance, the lowest
I recently purchased an MFJ 225 two port handheld mini VNA for $269. http://www.mfjenterprises.com/Product.php?productid=MFJ-225 I do not own more expensive gear to test its calibration against, but
On 3/28/2016 9:14 AM, Jim Brown wrote: On Mon,3/28/2016 4:37 AM, KE1F Lou wrote: Is the lowest SWR is the resonant frequency? Resonant frequency is when Xl=Xc. When Xl=Xc is not necessarily the lowes
It would be exactly so if the real part of the antenna input impedance did not change with frequency. The real part of dipole impedance rises quite a bit with frequency, so the resonant frequency as
Hi, I use a miniVNA pro with bluetooth Bluevna software to my Android smartphone or tablet. You can calibrate it with your feedline connected so you do real antenna measurement. 73 Henk PA5KT Op 3/27
One point of clarification. If you make a measurement that accurately provides magnitude and phase, including the SIGN of the phase, then accurately determine the electrical length of the feedline an
THIS is the way that you do it. The newer graphing boxes (most of them since AIM4170) will allow you to pre-calibrate a transmission line, and then see all results as if you were really up there. Get
Interesting! I had no idea that anything was available with that capability. 73, Mike www.w0btu.com _________________ Topband Reflector Archives - http://www.contesting.com/_topband
And the AIM2180 is not even the best (or the cheapest) of the units that do it. The winner, by far, is the VNWA 3e. Less than $700 with shipping cables, case, and calibration loads (priced in British