I have seen something similar with one of my Trimble
Thunderbolts that I got through this group. After weeks of
operation, the serial port stops responding and a power-cycle
has it communicating again.
Firmware A002206.G1 Rev E
Running on OpenHPSDR LPU analog power supply that gets 13.6
volts from a pair of 6 volt golf cart batteries in series that
are charged from AC mains.
Serial port is normally disconnected; attached to MS Windows PC
with Lady Heather when I am interested in data.
I bought a third Thunderbolt on eBay and it does not fail. The
second of the two Thunderbolts I got through this group in 2008
does not fail either (same firmware).
On 03/20/2016 02:10 AM, Dave Brown wrote:
Are there any circumstances when the Thunderbolt serial port is
disabled by firmware? My TB runs 24/7 but stopped the night
before last for no apparent reason. I only discovered this when
I checked Lady Heather early yesterday.(19 March) LH had stopped
with a 'no data' warning late on the 18th Feb. I initially
restarted LH but to no avail, then powered off the Thunderbolt
briefly-again to no avail. I then left it powered off for over
24 hrs and restarted it around mid-afternoon today (20 March)
and now, after about four hours running normally, it seems like
all is back to normal. Just running Tboltmon at present but will
go back to LH later tonight.
DaveB, NZ
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