David J Taylor
david-taylor at blueyonder.co.uk
Fri Dec 5 02:04:38 EST 2014
David it always does a survey. Though even while doing that the frequency
output is fine after its had a bit to stabilize. I wanted to bring the
survey lamp out to a front panel LED however that appeared to be more work
and risk then the value.
The documentation says that from time to time it will do a re-survey.
Frankly my units racked and stacked with dividers filters and line drivers
for various frequencies I am using and its running very very smoothly.
By the way at a huge power consumption of 1-3 watts. The power mete doesn't
read well at this level.
Thanks, Paul. I had rather hoped that there might be some EEPROM in one of
the chips where the data was stored, oh well! I wonder just how long "a bit
to stabilize" takes? I might have mine on 24 x 7, but I might not...
My survey LED has still not gone out despite the unit being on overnight,
and the Alarm LED is lit, so I wish there was a way of relaxing the survey
constraints a little to get the survey complete. Viewing the NMEA output
with either Visual GPS or the U-blox software suggests that, despite good
signals, the unit is only getting lock half the time. The positions it
produces are correct. I read in the documentation that the serial/USB data
is output only, though.
(I was wrong on the 10 MHz output being 20 MHz, I forget my other reference
was 5 MHz.)
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Email: david-taylor at blueyonder.co.uk
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