On 8/28/06, philip gentile <[EMAIL PROTECTED]> wrote: > what performance difference do you see between the 850 and SDR using side > band on 10 meters?
We will try SSB and AM next time. On 8/28/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Please check your DSP/AGC settings when performing receiver sensitivity > test, and also not position of Pr-Amp settings. You might want to go into > DSP AGC and set to "custom" then turn Max AGC Gain up, Experiment with the > settings,. In a DSP radio the AGC is critical to *apparent* sensitivity and > pulling signals out of the noise. Unless I'm mistaken, AGC has no effect on FM using the SDR. What am I missing there? Pre-amp was set to "High" on the SDR for this test. On 8/28/06, David Ackrill <[EMAIL PROTECTED]> wrote: > The trouble is that, even if you use the same mode, transmitters are > often set up differently to other transmitters. You need to check on > the various settings for the microphone, audio bandwidth, compression > and other audio an transmission qualities. The transmitting station was also an SDR-1000 positioned 18.6 miles from the second SDR-1000 and the TS-850. No changes were made to the SDR transmitter between tests. The transmitter was using ~1 watt of RF, mic gain was set to 0 dB level, compander was on 4, no compression, xmit filter cannot be changed in FM TX on the SDR. Antenna on the xmit station was a 3el Tribander pointed at rcve station. The receive station consisted of the second SDR-1000 and TS-850 using same fixed dipole, same feedline. SDR pre-amp on "High" with all that could be, set to full sensitivity. Receivers were switched twice in case of QSB, etc., with no change in readability on either. Transmissions were about 3 minutes each during the tests. This was a REAL test, on-the air, and all I'm trying to find out is; are the results typical or do we have a bad SDR1K? There was nothing that could have been done to improve the SDR to the extent of difference in readability of the two units except maybe adding an external pre-amp to the SDR. Brian On 8/28/06, Charles Greene <[EMAIL PROTECTED]> wrote: > Guys, > > I have a 940SAT I am getting ready to sell sitting alongside the SDR > which beats it hands down on most everything except nostalgia, using > same antennas. > > > chas, w1cg > > At 02:36 PM 8/28/2006, Cecilio Bayona wrote: > >Radio Station W5AMI wrote: > > > Just curious what I should expect on a comparison of rcve sensitivity > > > between the SDR-1000 and KW TS-850 on 10 meters. With one watt of > > > transmitted RF on FM between two stations 18.6 miles distant, the unit > > > we tested shows the 850 as a winner by a long shot. I am not talking > > > about S-meter readings, but rather readability. The TS850 captured > > > the signal with 100% readability whereas the SDR-1000 was less than > > > 50% copy. Is this typical, or is there something wrong with the > > > SDR-1000 unit we used? > > > > > > Brian > > > > > > _______________________________________________ > > > FlexRadio mailing list > > > FlexRadio@flex-radio.biz > > > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > > > Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > > > FlexRadio Homepage: http://www.flex-radio.com > > > > >My TS-930SAT ,TS-940SAT, or TS-830 beats the SDR-1000 in terms of > >sensitivity and being able to dig a signal that is way down in the > >noise. But I must admit that I have not tried having the PC and monitor > >far away from the radio, right now they are about 3 feet from the > >SDR-1000 and 5 feet from the TS-940, TS-930, and TS-830. > > > >All three would use the same antenna and tuner, a vertical Delta Loop, > >or an end-feed random wire. > > > >Next year I'm going to try to acquire a TS-850 or a TS-950DX, I love > >those old Kenwoods, their receivers are awesome. > >-- > > > >Cecil > >KD5NWA > >www.qrpradio.com www.hpsdr.com > > > > > >"Sacred Cows make the best Hamburger!" Don Seglio Batuna > > > > > >_______________________________________________ > >FlexRadio mailing list > >FlexRadio@flex-radio.biz > >http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > >Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > >FlexRadio Homepage: http://www.flex-radio.com > > > -- "There is nothing more uncommon than common sense." -- Frank Lloyd Wright _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
