[time-nuts] M12+ Temp sensitivity

Randy Warner Randy at synergy-gps.com
Wed May 3 15:02:16 EDT 2006


We just heard that we should be getting 500 pcs in the June timeframe.
Further quantities will probably not show up until late July or August. 


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Normand Martel
Sent: Tuesday, May 02, 2006 7:13 PM
To: time-nuts at febo.com
Subject: Re: [time-nuts] M12+ Temp sensitivity

I may be the 259th to ask you, but do you have a date when the new M12M
will be officially available?

I almost have bought a "Resolution T" a few weeks ago when i heard about
the M12+ and it's successor, the M12M. Now i'm waiting! Well... I
know...  this is a forum about time... ;-)

Have a good day!

73 de Normand Martel VE2UM
Montreal, Canada
...Too bad! The Habs have lost against Canes!


>Hey! Whaddya mean CHEAP? The marketing guys call it feature laden and 
>cost effective!

>Anyway, you're right. The M12+ is extremely sensitive
to environmental
>stimuli. On our receiver/adapter board assemblies I
actually include a
>piece of foam tape between the two boards that gives
the crystal
>(crystal, not TCXO) some isolation from the outside
world. The old
>original M12's actually worked better in this respect
because they were
>in a normal crystal can which lengthened the thermal
time constant
>enough that temperature perturbations weren't a
problem. The SMD Rakon
>crystal used by current M12+'s just doesn't have any
sense of humor
>when it comes to temperature changes.

>The new M12M's DO HAVE a Rakon TCXO and are a lot
>insensitive than the M12+'s. 


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