http://groups.yahoo.com/group/spectrumanalyzer/ Spectrum Analyzer Projects Sat, 21 Nov 2009 05:14:24 GMT william sprowls http://groups.yahoo.com/group/spectrumanalyzer/message/5196 http://groups.yahoo.com/group/spectrumanalyzer/message/5196 Hi Neal,  Ok, calibrate out the test set-up and the delay time should be corrected. I must admit that my term "tuning the filter" may be an over Sat, 21 Nov 2009 00:40:21 GMT nealmartini http://groups.yahoo.com/group/spectrumanalyzer/message/5195 http://groups.yahoo.com/group/spectrumanalyzer/message/5195 Scotty, I did not calibrate out the test set-up. I will do that. I did have very short connections in my test. One side of the filter was directly screwed into Fri, 20 Nov 2009 19:01:33 GMT william sprowls http://groups.yahoo.com/group/spectrumanalyzer/message/5194 http://groups.yahoo.com/group/spectrumanalyzer/message/5194 Hi Neal,  I'm thinking your filter is undercoupled with the hairpins. This will give extra loss,  narrower bandwidth, and a large deviation from 50 ohms.  Fri, 20 Nov 2009 17:35:03 GMT nealmartini http://groups.yahoo.com/group/spectrumanalyzer/message/5193 http://groups.yahoo.com/group/spectrumanalyzer/message/5193 Scotty, My coax filter response is finally looking pretty reasonable. The passband is very flat and the insertion loss is around 10 dB. I put the filter on an Fri, 20 Nov 2009 03:49:22 GMT s_103_k_a http://groups.yahoo.com/group/spectrumanalyzer/message/5192 http://groups.yahoo.com/group/spectrumanalyzer/message/5192 Hi Scotty, Thanks for the tips. I do have a 3rd isolator and the TG modules. I guess I also hit a good bargain on flea-bay having paid about $29 for 4 M1Js Thu, 19 Nov 2009 22:14:14 GMT wb7dmx http://groups.yahoo.com/group/spectrumanalyzer/message/5191 http://groups.yahoo.com/group/spectrumanalyzer/message/5191 ... ok, I am guilty of this discression, join wb7dmx@... / with wb7dmx@... and you will have me shown as the second on the poll list. bobby Thu, 19 Nov 2009 20:01:28 GMT undercoupled http://groups.yahoo.com/group/spectrumanalyzer/message/5190 http://groups.yahoo.com/group/spectrumanalyzer/message/5190 I need some help referencing poll respondents and emails I have received. Several folks have used one email address responding to the poll, but have Thu, 19 Nov 2009 15:50:54 GMT wsprowls http://groups.yahoo.com/group/spectrumanalyzer/message/5189 http://groups.yahoo.com/group/spectrumanalyzer/message/5189 Hi All, Jerry informed me of a recently published Crystal Ladder Filter program. I tried it out and it is really easy to use. Although limited in its design Thu, 19 Nov 2009 14:14:35 GMT william sprowls http://groups.yahoo.com/group/spectrumanalyzer/message/5188 http://groups.yahoo.com/group/spectrumanalyzer/message/5188 Hi Neal and All,   Oops, I am in the process of changing the Web Site and some things are not complete.  You may see some links that are in-work.  Thu, 19 Nov 2009 06:10:22 GMT nealmartini http://groups.yahoo.com/group/spectrumanalyzer/message/5187 http://groups.yahoo.com/group/spectrumanalyzer/message/5187 I am not able to download the ReadMe115.txt file from the group Software Download page. I get an error message on two different computers. The other files Thu, 19 Nov 2009 00:34:53 GMT wb7dmx http://groups.yahoo.com/group/spectrumanalyzer/message/5186 http://groups.yahoo.com/group/spectrumanalyzer/message/5186 thank you, that makes me feel a lot better / at ease. also I now have the sma connectors for the final filter switch and will finish it up tomarrow and then Wed, 18 Nov 2009 23:13:37 GMT william sprowls http://groups.yahoo.com/group/spectrumanalyzer/message/5185 http://groups.yahoo.com/group/spectrumanalyzer/message/5185 Hi Bob and All, Let me calm the anxieties. Jerry is in the process of starting the return e-mail process and will take a couple of days to do it right.  This Wed, 18 Nov 2009 22:13:55 GMT wb7dmx http://groups.yahoo.com/group/spectrumanalyzer/message/5184 http://groups.yahoo.com/group/spectrumanalyzer/message/5184 has anyone recived a e-mail from j.c.barnett yet ? I sent the info twice and have not recived any response as yet bob WB7DMX Wed, 18 Nov 2009 20:30:27 GMT william sprowls http://groups.yahoo.com/group/spectrumanalyzer/message/5183 http://groups.yahoo.com/group/spectrumanalyzer/message/5183 Hi Neal, Loop bandwidth is designed for about 25 KHz.  A compromise of lock time and close in phase noise.  This could certainly be "played with". Scotty ... Wed, 18 Nov 2009 18:13:27 GMT swetterlin http://groups.yahoo.com/group/spectrumanalyzer/message/5182 http://groups.yahoo.com/group/spectrumanalyzer/message/5182 A long time ago, it seems now, I wrote a program called Portview, that was intended to provide various ways to generate and graph S-Parameters. It includes a