I am now fairly sure that the issues with my 4060 are due to a bad EPROM image
or some other problem with the CPU card. When I start an ALIGN sequence you
see the beam current jump up to the same point as when you turn MOD off. From
then on, nothing else happens. I would assume that the
From: Mark Sims [EMAIL PROTECTED]
Subject: [time-nuts] FTS-4060M/S24 ROM
Date: Sat, 21 Jun 2008 10:48:36 +
Message-ID: [EMAIL PROTECTED]
I am now fairly sure that the issues with my 4060 are due to a bad EPROM
image or some other problem with the CPU card. When I start an ALIGN
It used to be a fairly common trick to solder an eprom into
a machine tool socket to make a more durable eprom... the pins
will insert into a socket more easily, and they won't bend.
Make sure that there isn't an insert pin type socket in the
circuit card.
-Chuck Harris
Mark Sims wrote:
I am
Hello Magnus and Chuck,
The FTS-4060 is a steam driven machine from the last millenium. I don't think
it has a DDS chip.
Everything appears to be working and the physics package seem to be locked on
freq when I set it up manually. The problem is the auto-align function does
not work. The
On Thu, 2008-06-19 at 22:54 +, Mark Sims wrote:
I recently bought a FTS-4060M/S24 cesium beam unit.
[...]
There are a few issues with it. First the crystal oven monitor reading
stays at 5V. The unit has an FTS-2000A OCXO. This is basically a smaller
OCXO that is mounted on a
Hello Bjorn,
My OCXO is marked: Model 2000A Serial Number 311. No freq is given. It is
almost certainly 10 MHz.
The oscillator does have that weird D-SUB+coax on it. The PCB on the module
wires it to a DB9 connector with the Dataum 1000 OCXO. Measured voltages were
around 15V and 26V.
Bill[EMAIL PROTECTED]
To the group
Just today, received my Thunderbolt from China. It is up and running. Just
a simple question
for you you Thunderbolt Experts. After reading the Trimble Manual,
download. I still do not have an answer. How can I tell when I have a
lock. I desire to
: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Bill Smitherman
Sent: Friday, June 20, 2008 2:15 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] FTS-4060M/S24
Bill[EMAIL PROTECTED]
To the group
Just today, received my Thunderbolt from China
PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Bill Smitherman
Sent: Friday, June 20, 2008 2:15 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] FTS-4060M/S24
Bill[EMAIL PROTECTED]
To the group
Just today, received my Thunderbolt from China
I recently bought a FTS-4060M/S24 cesium beam unit. It is a rather stripped
down model, with 1MHz on the front panel and only 1/5/10MHz/Fault BNC's on the
back (does not even have the monitor port on the back).
It looks like the tube is good. I can scan though the resonance peaks.
Turning
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