[time-nuts] CW12-TIM vs M12M and the world

[Tom Knox]

I spoke with Navsync about some of the issues we are discussing and this was their response. I just received mine and will try to test it over the weekend.
1. Is CW12-TIM compatible with Motorola M12 ?>>
 The CW12 is designed to be compatible with the M12 although there are 
some differences.  The main hardware differences are listed on page 7 of
 the CW12 User Manual (http://www.navsync.com/docs/cw12-tim_um.pdf).  2.
 According to the customer, M12 has a Sawtooth Correction Error & 
Hanging Bridge Error? Does CW12 have a solution for these type of 
errors? How these errors are taken care of in CW12?>>
 The Hanging Bridge Error is a pattern seen in the sawtooth error that 
occurs as the local clock frequency changes.  The standard Motorola 
Binary software for the CW12-TIM does not have the sawtooth correction 
field in the @@Hn command implemented, but NavSync is currently 
developing this and it will be available in future standard releases. 
 The sawtooth error on the Motorola M12+ is about +/- 25ns, while the 
CW12-TIM has a sawtooth error of +/- 2 ns, so correcting for the 
sawtooth error is not as critical with the CW12-TIM. 

Thomas Knox