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The MR300 worked for a very short time then gave erroneous results this proved to be a poor solder joint between the antenna socket and the circuit board once bridged the Analyzer worked fine . I would suggest any owner should check this point .I discovered by using an ohm meter . I do feel this is its only weakness except the fact it does not take internal 8 AAA batteries . To calibrate the unit three resistors are required to make dummy loads ( 50 ohm 150 ohm and 274 ohm ) but the process is very simple . I tested the MR300 against my Surecom SA160 ( three times the price ) and find them to my surprise just about parring with each other . I could be of course they are both lying but to give them credit I am happy to believe them . So after all that I feel the MR 300 is a good purchase .The instruction manual can be found on line .Read full review
Verified purchase: Yes | Condition: New
This is a nice piece of kit. Very good at distinguishing impedance at different frequencies. It's only drawback is it doesn't come with a power supply and won't work unless the PSU you use is rated at a 1A. or more.
Verified purchase: Yes | Condition: New
Fairly straight forward to use considering no instructions download from supplier
Verified purchase: Yes | Condition: New