> Thanks for clarifying this issue! I may use references with close-in PN
> (1Hz-1kHz) 10 dB noisier than the DUT, however as you said it may
> require an overnight run for 1 Hz offset, which isn't the nice part... I
> assume then that speeding up the measurement process can only be
> obtained usin
Thanks for clarifying this issue! I may use references with close-in PN
(1Hz-1kHz) 10 dB noisier than the DUT, however as you said it may
require an overnight run for 1 Hz offset, which isn't the nice part... I
assume then that speeding up the measurement process can only be
obtained using refe
> In a PN measurement system with a dual channel cross correlation is there a
> simple rule of thumb for how low should be the PN of the (external)
> references compared to the DUT? (even with a 20 dB noise floor
> improvement with 1 cross correlations)
If you have two references, then it's OK
Hi All,
In a PN measurement system with a dual channel cross correlation is there a
simple rule of thumb for how low should be the PN of the (external) references
compared to the DUT? (even with a 20 dB noise floor improvement with 1
cross correlations). In the case of the references hav
Hello Time-Nuts,
I have a NTGS50AA GPSDO (close cousin to the NTBW50AA and Thunderbolt)
with the OCXO removed and a SRS PRS-10 rubidium oscillator in its
place. I have been running Lady Heather 5.0 and have changed the
damping, gain, and time constant to give me a 20,000 second time
constant with
>
>
> Also the new iphones now support Galileo in addition to GPS and Glonass.
>
Any word on whether iOS will support raw observables, as Android has for a
little while now? I gather the APIs need to support continuous tracking
better so that phase observables are meaningful across epochs.
Will
On Wed, September 27, 2017 9:38 pm, Bill Hawkins wrote:
> Sadly, it is not the phone users who will benefit. It is the advertisers
> who use your location to send targeted ads.
I doubt that knowing which side of the parking lot you are in will be of
much interest to advertisers. It will help navi
Jeremy wrote:
The only thing I've not adjusted is the oven temperature.
I know there's been discussion of this subject here in the
past but my searches come up empty—I must be using the wrong keywords.
The 103AR is just a toy for me so no harm is done if the frequency can't be
raised to 1 MHz bu
On Wed, 27 Sep 2017 11:54:11 +
Mark Sims wrote:
> http://www.theregister.co.uk/2017/09/27/centimetre_accurate_gnss_chipset_tested/
Sadly, the IEEE Spectrum article, which they reference, is so full
of mistakes. One would think that the largest electrical engineering
association would have so
