Best Clock?

On Tue, 24 Feb 2004 10:44:27 -0500, Dave Butler
wrote:

Davtron = good.
Astrotech = junk.
Assorted kitchen timers, etc. = watch out for accuracy changes as batteries wear.

Aren't they crystal-driven?

Don

"Bob Fry" wrote:
Well, I had a Davtron LCD digital clock in my old Warrior.
It had a stop watch for timing procedure turns, etc.

I have that in my Aircoupe. The LCD display is splotchy,
the buttons are unreliable, a real piece of junk.

Really? I like mine fine. I've had it for three years and it's been
reliable and accurate, no problems at all.
--
Dan
C172RG at BFM
(remove pants to reply by email)

Biggest difference for me was the push buttons.
Astrotech was uncertain... sometimes it started, sometimes not.
My Davtron works first time every time.

Rich

Don Tuite wrote:
On Tue, 24 Feb 2004 10:44:27 -0500, Dave Butler
wrote:


Davtron = good.
Astrotech = junk.
Assorted kitchen timers, etc. = watch out for accuracy changes as batteries wear.


Aren't they crystal-driven?

Don

I "replaced" the clock when I put in a Garmin GTX 327 transponder.
Transponder has timer finctions built in. Just a thought if replacing the
transponder is on your to do list.

Michael


"Jay Honeck" wrote in message
news:Kbv_b.375295$I06.4006427@attbi_s01...
The old wind-up clock in my Pathfinder has become sporadic at best. When
it
was below zero here, it didn't work at all.

Any recommendations on a replacement?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

Don Tuite wrote:
On Tue, 24 Feb 2004 10:44:27 -0500, Dave Butler
wrote:


Davtron = good.
Astrotech = junk.
Assorted kitchen timers, etc. = watch out for accuracy changes as batteries wear.


Aren't they crystal-driven?

http://groups.google.com/groups?q=ti...amd.com&rnum=1

or if you prefer

http://makeashorterlink.com/?H2C255387

Dave
Remove SHIRT to reply directly.

On Tue, 24 Feb 2004 13:46:23 -0500, Dave Butler
wrote:

Don Tuite wrote:

Aren't they crystal-driven?

http://groups.google.com/groups?q=ti...amd.com&rnum=1

or if you prefer

http://makeashorterlink.com/?H2C255387

So they run either at the rate and precision of the XO or at precisely
half the XO rate when the battery is at half capacity? The Asian mind
is is indeed subtler than mine.

But let's see. The batteries are lithium, right? So after two-plus
years of impeccable time-keeping, you find your descents and your
turns are happening at twice the speed for the same control inputs you
used to use and you get two mississippis for the price of one? No,
that can't be right. Don't lithiums have a more or less flat
discharge curve with a big cliff at the end?

That'd be more like an analog wind-up clock that acts funny when the
spring is almost unwound. (I think it speeds up because the
escapement travel is shorter.) But then, the old stem-winder is
easier to get going again with a couple of twists of the knob.

These things always get more interesting the deeper you go into them.
Thanks for the link.

Don

I have a davtron m811. The counter function works fine. The time of day
function falls behind several minutes each month, and I have to hold a
little button in for long periods of time to correct it. It's a pain, and I
wouldn't replace it with another davtron m811.


"Jay Honeck" wrote in message
news:Kbv_b.375295$I06.4006427@attbi_s01...
The old wind-up clock in my Pathfinder has become sporadic at best. When
it
was below zero here, it didn't work at all.

Any recommendations on a replacement?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

I "replaced" the clock when I put in a Garmin GTX 327 transponder.
Transponder has timer finctions built in. Just a thought if replacing the
transponder is on your to do list.

Yeah, I just got the Garmin GTX 327, and we use the timer functions all the
time. It's a great unit.

Too bad they didn't include a regular clock as part of the display. How
hard would it have been?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

Your GPS should have a clock on it and it is synchronized to the satellites.

Mike
MU-2


"Jay Honeck" wrote in message
news:eRR_b.385073$I06.4171108@attbi_s01...
I "replaced" the clock when I put in a Garmin GTX 327 transponder.
Transponder has timer finctions built in. Just a thought if replacing
the
transponder is on your to do list.

Yeah, I just got the Garmin GTX 327, and we use the timer functions all
the
time. It's a great unit.

Too bad they didn't include a regular clock as part of the display. How
hard would it have been?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

I have a mechanical clock that runs off the battery. Not sure if it is original
piper or not, but the darned thing is accurate and reliable (it is about the
only instrument I haven't had worked on in the 9 years I've owned). I noticed
the other day that it was off by exactly an hour down to the second. I haven't
touched it since before daylight savings ended.

"David R." wrote:

I have a davtron m811. The counter function works fine. The time of day
function falls behind several minutes each month, and I have to hold a
little button in for long periods of time to correct it. It's a pain, and I
wouldn't replace it with another davtron m811.

"Jay Honeck" wrote in message
news:Kbv_b.375295$I06.4006427@attbi_s01...
The old wind-up clock in my Pathfinder has become sporadic at best. When
it
was below zero here, it didn't work at all.

Any recommendations on a replacement?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"



--
--Ray Andraka, P.E.
President, the Andraka Consulting Group, Inc.
401/884-7930 Fax 401/884-7950
email
http://www.andraka.com

"They that give up essential liberty to obtain a little
temporary safety deserve neither liberty nor safety."
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