Whenever I cross fc > = 1500MHz with this transceiver, however, I see a significant (>10dB) > change in the noise floor. What is the cause, and what could be done to > suppress (or characterize) such behavior?

Next block is "Buffer" with > size 1000 and final block is "SDRu Transmitter", with Fc-1575.42e6 Hz, > LO offset-0 Hz, Gain-5 dB, Master Clock Rate- 20.95104e6 Hz, > Interpolation- 512 and everything else is default. > > > When i run the model, my GPS evaluation software (U-center) receives > gibberish. Intermittent signal and pseudo satellites.

There was an interesting paper given at FCS about 10 years ago about the quartz shortage during WWII. There were govt projects to search for a replacement material. It sounded like a good effort was made, but in the end nothing else even came close to quartz.

. > > http://thirdpartyoffers.juno.com/TGL2141/fc/PnY6rw22U6KSiqbzGnzo8ijTIrFXhPWyQU8E > > VhPuk3kNAOgi96JqR/ > > _______________________________________________ > > 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. > > _________________________

(The one question mentioning Galileo was a side question on how their passive maser for the SV is designed) > I would be happy to host a meeting in UK for any EU Nuts and in US at PTTI > or FCS and welcome any direct approaches. That would be great!

There's a FCS paper on it from the 80's(?). Closer to the original topic. The IRIG stuff dates to 1956 according to Wikipedia. There were similar setups running around when IRIG was being worked on. The whole reason for doing it was the proliferation of incompatible gear.

If you want to dig into them, digging into a good index of the FCS proceedings is a good starting point. The crystals shown in the movie were going into pressure holders. The whole stress / strain / frequency thing was well in the future in 1943.

Regards Paul WB8TSL On Sun, Feb 22, 2015 at 2:57 PM, Hans Holzach wrote: > hi jürg, > > dispite the fact that my prs-10 has been up and running for only about 2 > years (according to FC!?)

Again, I can't find much in the manuals to validate the external input, other than using a FC with the same reference input. Any input or tutoring would be helpful. Are others just adding resistance in line with the TBolt output to drop voltage? I tried a 50 ohm resistor and it dropped from 1.7 to just under 1v rms on the scope. Thanks Max NG7M -- M.

[Machine generated alternative text: Factory Settings Analog Output Values Ipps Control sd0 sdl sd2 sd3 sd4 sd5 sd8 sd7 R N A SF MO PH FC 149 128 255 150 178 130 100 185 8293 3537 4 -813 1440 2737 2579 o 7 24 2117.01 -1.0 Step Rec. Diode Delay Value Fet Voltage Set Lamp Temp. Set Crystal T emp.