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Rigexpert AA-200 antenna analyser
If I was to look out for an Antenna Analyser that would do the other
measurements that the AA-200 can't do. What would be the price rang that I could expect to pay and what would you recommend? 73 Andy "Dale Parfitt" wrote in message news:sim_j.2412$u7.535@trnddc07... "Ian White GM3SEK" wrote in message ... Andy wrote: I found a review from Radcom on the net and it sounds good. http://www.mixw.co.uk/product/reviewAA200.htm I sent an e-mail to the designer of the Analyser and he says it does not require re-calibration. That feature is a two-edged sword. On the one hand, it means the analyser is immediately ready for routine measurements. That of course is a good feature for most of the users, most of the time. On the other hand, if it doesn't have the *capability* to be recalibrated when different kinds of test fixtures are attached, it means that some useful kinds of measurements will not be possible... or worse, will appear to be possible but may give wrong answers. Measurements of the resonant frequencies of coaxial chokes are an example where analysers that cannot be recalibrated will give large errors - see the last few paragraphs of: http://audiosystemsgroup.com/RFI-Ham.pdf There's a place for both the simple handheld analysers and the ones that have more features but live on a bench. It's the buyer's choice... but whichever one you buy (or build) first, you may eventually find uses for both. Thsnk you for the Radcom link Andy- I had missed that. I agree with Ian on the recal- however I think for portable use this is ideal. I have an HP8711B for bench measurements. Dale W4OP |
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