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![]() "Frank Gilliland" wrote in message ... You have reduced yourself to taking cheap shots. So are you going to address the facts of the issue and do the test or not? Frank, first you can't answer the technical questions I put to you why everybody isn't using those connectors at UHF. You claim to be so "knowledgeable" in the area so what's your problem with explaining it? Here's your chance to make me look dumb and you can't even take adavntage of it because you're wrong. The burden of proof is on you, not me. The simple fact that they are not used in most cases is an answer in it self, and not from any lack of trying either. I'm sure many people better than you have tried and discarded the idea of using them. Second I have made qualitative measurements as I mentioned before in my E-mails to you. You seem to ignore that every time you bring up the subject. Third, somebody else has already done the test, described the test set up in enough detail to allow people with the experience using vector network analyzers to repeat the test for themselves, and published the actual equipment plots. As far as I'm concerned his comments about the test connector "being of poor quality" could mean anything from for example maybe his preference is silver plating over nickel plating on the body of the connector, or gold plating instead of tin coat for the contacts. Forth, your test is completely useless since there isn't sufficient information to even duplicate the setup you used. I don't know what kind of cable you used, it's length, where the power meter was located in relation to the tested connector "system", what kind of power meter was used, and finally what EXACTLY was the configuration of the connector system you tested. Was it a simple plug socket combo, a barrel connector and two plugs, how long was the barrel connector was, or something else completely and what dielectric was used in each component etc. And all of that does matter as was pointed out in the link below. http://iwce-mrt.com/ar/radio_swr_name/ The link below used exactly the same connector configuration I made my calculations for in the Mathcad worksheet I sent you as a HTML copy, which pretty much reflected the same conclusions reached by the gentlemen using the vector network analyzer. And I'll even bet if you asked nicely he would provide more details of the tests he did. http://www.qsl.net/vk3jeg/pl259tst.html -- Leland C. Scott KC8LDO Wireless Network Mobile computing on the go brought to you by Micro$oft |
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