geraldo >Is this normal, or do I have a defective unit?
It is normal for a defaul Tbolt, with any (or all) of the following: MultiPath a poor antenna, a poor sky view, a poor location survey a poor elevation mask setting a poor Sat Level setting a poor TC setting A poor Sat cable ALL need to to be corrected to make it lots better. Lady Heather has all the tools to find which ones are effecting you, But I could not see your plots. If you want more information, post a LH log file and how/where I can view your plots. Have fun ws ps damping should remain at about 1.0 *************************** [time-nuts] Do I have a defective thunderbolt? Geraldo Lino de Campos geraldo at decampos.net Wed Nov 17 16:21:20 UTC 2010 I have a thunderbolt acquired from TAPR. Almost every time the number of satellites change, there is an abrupt change in the DAC voltage - as high as 1 mv, sometimes. See www.decampos.net\LH\LH1<http://www.decampos.net/LH/LH1>.png - a graph with time constant 200 and Damping 4. Using much higher values improve the situation, as can be seen in www.decampos.net\LH\LH2.png<http://www.decampos.net/LH/LH2.png>, time constant 1000 and damping 100 (note the change in the DAC scale), but the jumps are still present. Is this normal, or I have a defective unit? The antenna is located in a window, with several buildings nearby, so the change in the number of satellites is frequent. -- ------------------------------------ geraldo at decampos.net _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.