That's the same place I got mine. They made the same mistake, but
helped me get the Motorola firmware. The CW-12 is also available from
Janus Remote Communications (Navsync and Janus are part of
Connor-Winfield). They have two warnings on the CW-12 page about the
Motorola firmware.
As for the variable frequency output, it's only variable with the NMEA
load. Whoever paid Navsync to create the Motorola firmware apparently
wasn't interested in the variable frequency output so there's no command
to change the frequency. It's fixed at 10 MHz. So you can have
variable frequency, or you can have a Motorola-compatible timing
receiver with TRAIM. Sigh.
Connor-Winfield provided me with the firmware, but asked me not to post
the link. I'll send it off-list.
Ed
On 3/24/2012 3:07 PM, Tom Knox wrote:
Thanks Ed, You may have saved me a headache. The only place I found the
CW12-TIM was semiconductorstore.com and they did not know anything about them.
I did not realize there were different firmware versions, After reading the
manual, I thought it would just recognize NMEA 0183 and Motorola Binary. All
thru their literature they keep claiming M12 compatible never clearly
mentioning different versions. Typical. the Commsymc II manual, like most other
commercial GPS manuals offers nothing useful. They do not even explain what a
number of different jumpers do. I am sure one is for 5VDC or 3.3VDC I could
only guess at the rest.
I am interested in the firmware to fix the 10MHz issue in case I ever utilize
the variable freq output.
Thanks Again;
Thomas Knox
Date: Sat, 24 Mar 2012 10:55:01 -0600
From: [email protected]
To: [email protected]
Subject: Re: [time-nuts] CW12-TIM
Thomas, where did you buy your CW-12? AFAIK, the Motorola version of
the CW-12 is a 'special order' item. You can only buy the NMEA
version. If you did buy the NMEA version, ask their tech support for
the Motorola firmware. They sent it to me and I flashed it with no problem.
If you decide not to use the CW-12 in your Commsync and think you might
like to play with the 10 MHz output, there was an issue with the
frequency of that output. Search the archives for details. I can
provide the updated firmware that resolves the issue.
Ed
On 3/23/2012 7:36 PM, Tom Knox wrote:
I have already bite the bullet, After reading the manual I thought it was worth
a try. It should arrive Tuesday. So next week I will post what I find.
Thanks;
Thomas Knox
Date: Fri, 23 Mar 2012 19:17:06 -0600
From: [email protected]
To: [email protected]
Subject: Re: [time-nuts] CW12-TIM
Sorry Thomas. I don't know a thing about the Commsync II. See what you
can dig out of the manuals. Ultimately, you might have to bite the
bullet and buy a CW12 to try it. Sometimes that's the only way to find out.
Ed
On 3/23/2012 6:10 PM, Tom Knox wrote:
Thanks Ed, My Commsync has the LPN clean up oscillator option do you think that
will clean up the sawtooth?
Thomas Knox
Date: Fri, 23 Mar 2012 16:56:50 -0600
From: [email protected]
To: [email protected]
Subject: Re: [time-nuts] CW12-TIM
Yes, the CW12-TIM was designed as a drop-in replacement for the M12+.
Search the archives and you'll find out more about it. One thing to
note is that the CW12-TIM doesn't support sawtooth correction so the 1
PPS may or may not be an improvement over the M12+.
Ed
On 3/23/2012 3:16 PM, Tom Knox wrote:
Hi Group;
Has anyone played with the CW12-TIM? I am hoping it is a plug and play
replacement for the M12+ in my Commsync II with better performance.
Is there any other product I should look at?
Thanks;
Thomas Knox
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