Hello, I was helping a friend put his ?postage stamp lot --low to the ground? 80 meter loop on 160. So, we opened the loop to cause a ½ wl 160 antenna folded into a polygon. Placing the MFJ-26
Any comments or constructive criticism from any one on this Analyzer dilemma The 269 analyzer, like the 259, compares voltages across the load, current from the source, and bridge balance to determin
Like most (all?) analyzers at this price level, the MFJ has problems in the presence of strong RF. Go to http://www.fcc.gov/mb/audio/amq.html and enter the lat/lon coordinates and a distance of 20 mi
The same reading on 3.6 MHz with the loop open or closed really threw me for a moment until I realized that this is an off-center-fed open loop. So about 30 feet high should get you into the low teen
Jim: MFJ makes a filter for the 259 and etc. I believe that it must be a series resonate circuit across the input, tunable to the interfering stations freq. Z=0. I had to take my old fashion VSWR br
Careful! First, the impedance of a series resonant circuit isn't "zero" at resonance, it's some "low resistance." Second, it's only "low resistance" that frequency. At the frequency where you're meas
The MFJ filter PARALLEL resonates across the input. Z is thousands of ohms. In parallel with that parallel resonant circuit is a series tuned circuit in the BC band. This has a residual inductive re
Two other important limitations: 1. Only one BC frequency can be nulled out. If you have multiple strong signals, you are still out of luck. 2. It will perform poorly for 1700 kHz BC stations. I have