I will say that I was very impressed by the email that Art sent; I do
not see very many communications that are as honest as that any more.
Most people who are not engineers do not understand the diligence that
is required to ensure that one's daily mistakes in architecture, design
and implementation of anything electronic gets thrown in the trash and
not passed on to customers. I the cases where something DOES slip
through, it is always incumbent on the vendor to rectify the problem. I
have to do this in my work, and it is refreshing to see other examples
of this attitude. I will *always* buy from vendors who exhibit this
attitude, and never from vendosr who try and cover up an otherwise
perfectly excusable engineering error.
On 7/25/2014 6:51 PM, Alexander Pummer wrote:
Synergy's owner Ulrich Rohde N1UL --DJ2LR/DL1R is a long time ham
radio operator, and he will go pretty far to help for an other ham,
73
KJ6UHN ex DL...
Alex
On 7/25/2014 5:27 PM, Bob Stewart wrote:
And while this subject is still up, I want to let the group know that
Synergy *really* went out of their way to help me with this. I was a
bit surprised at their level of commitment to some ham radio operator
who had bought a single unit from them and probably didn't know what
the heck he was talking about. A real class act all around!
Bob - AE6RV
________________________________
From: Art Sepin <[email protected]>
To: Bob Stewart <[email protected]>; Discussion of precise time and
frequency measurement <[email protected]>
Cc: Tom Van Baak <[email protected]>; Dusty Morris
<[email protected]>
Sent: Friday, July 25, 2014 5:17 PM
Subject: RE: [time-nuts] Synergy-GPS SSR-6tru Problem Resolved
Bob,
Once in a while a mea culpa is required and we're posting it here so
everyone understands our commitment to the users of Synergy's products.
The Original Synergy Adaptor Board was designed to allow Motorola's
newer 3 volt 12 channel M12+ to plug into an older 5 volt 8 channel
UT+ slot. That product worked for hundreds of users over the years
until (we found out through your personal aggravation and agony) the
recent introduction of Synergy's SSR series of u-Blox based precision
timing boards.
To make sure that the Synergy UT+ Adaptor Board issue is put to bed
properly we asked for an external, formal technical review of this
product that was introduced fourteen years ago.
The reviewing engineer's first comments were "Ouch! This will not
work." And, "no, the SSR boards do not work the same as the M12
boards on the Synergy Adaptor Board". "The M12+ and M12M receivers
have separate serial ports for the two functions (Receiver command
RxD and DGPS RxD input) so it does not matter what you do with the
RTCM port, pin 5 on UT+ connector and pin 8 on the M12+/M12M
connector, if not in use with an M12x receiver."
"The SSR boards, however, had to combine the two serial data streams
expected by the M12x navigation receivers into one because the u-Blox
receiver modules only use one serial input port for both receiver
commands and DGPS correction data. The Synergy Adaptor Boards use a
simple gate combiner circuit that worked well when using the M12+ or
M12M but left Synergy open to this problem when using an SSR. Both
serial lines on the SSR board, pins 2 (Receiver RxD) and 8 (DGPS RxD)
are pulled high on the SSR board so open pins are OK but they must
not be grounded."
"The solution is for Synergy to make a UT+ Adaptor Board part number
available to users who only want to test the features of SSR timing
receivers."
That new SSR only Adaptor Board part number, which we'll have
available in a few days, will remove R3 (4.7K) and R4 (6.8K) from the
adapter board and the compatibility issue will be resolved. In the
interim, other users can pull pin 5 of the UT+ connector high (+5V)
as you did.
We apologize for the confusion and frustration, Bob, and thank you
for the valuable feedback!
Art Sepin
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