I also got an FE5680A, what a deal. Thanks to earlier postings I had the
correct pin out, info on the 1/16 hex key and the command set. It needs 5V
on pin 4 to operate.
After 24 hours mine ran 6 mHz low compared to my GPS-based 10 MHz.
I opened the case by removing the 2 flat head screws near
If you're interested, I have a page that shows what all the M12 test points
are. I used those, not the connector. Used to be on the Synergy site,
along with lots of other info on the M12.
Bob
-Original Message-
From: paul swed
Sent: Friday, February 18, 2011 11:58 AM
To: beale ; Dis
I can't resist a chance for a minor rant. Our neighborhood has suffered for
years with noisy land line phone service and occasional outages. They are
caused by degraded underground cables. Usually worse in the winter when
moisture gets into things, but my phone is presently so noisy I can barel
Maybe a pay per view event is in order.
Bob Q.
--
From: "John Miles"
Sent: Thursday, June 03, 2010 2:02 PM
To: "Discussion of precise time and frequency measurement"
Subject: Re: [time-nuts] Notes on tight-PLL performance ve
I'm thinking of buying an HP 5335A to upgrade from my old HP 5315A. I notice
prices on *Bay range from $100 (missing button on power switch) to $2100. Any
thoughts on what a fair price for one is?
Thanks,
Bob Q.
___
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Thanks for posting the link to the hp journal article. I wondered what
commercial receivers did about the 45 degree phase shift in the WWVB signal.
Looks like they just left it alone. I also like the tracking filter idea.
And I got to see a face from the past!
Bob Q.
- Original Message
unless you use
a circuit similar to what I used to prealign 50 Hz signals in the 100 Hz
Motorola Oncore design.
Bob Q.
- Original Message -
From: "Patrick Reynaert"
To: "time-nuts"
Sent: Sunday, December 21, 2008 2:13 PM
Subject: [time-nuts] Jupiter modules: 1pps or 1
and I think
capacitors that will work for the long time constant will have poor
temperature properties, leading to excess drift. Digital approaches using
the 1 pps signal compared to a divided OCXO signal are used by most modern
designs.
Bob Q.
- Original Message -
From: "Patrick Rey
I have a design based on the Motorola MT12+ receiver that uses a CMOS
XOR-based PLL. I will send you the file with write up and schematic.
Bob Q.
- Original Message -
From: "WarrenS Email" <[EMAIL PROTECTED]>
To:
Sent: Sunday, November 23, 2008 2:18 PM
Subject: [time-n
So why would they not show the same kind of jumps as plain OCXO's? Rick K.
mentioned atomic standards avoid jumps.
Bob Q.
- Original Message -
From: "WB6BNQ" <[EMAIL PROTECTED]>
To: "Discussion of precise time and frequency measurement"
Sent: Thursday, O
Do rubidium standards use an OCXO?
Bob Q.
- Original Message -
From: "Rick Karlquist" <[EMAIL PROTECTED]>
To: "Discussion of precise time and frequency measurement"
Sent: Wednesday, October 22, 2008 2:23 PM
Subject: Re: [time-nuts] Question on crystal jumps
adjustment, useful to
center the range of the electrical adjustment. I sent an email to the
seller and he offered to either refund my money or send a replacement unit
for the cost of postage, without returning the first unit. The replacement
unit works fine.
Bob Q.
- Original Message -
Fro
I bought one too, just inside the door at Halted. I have it patched to a
Rockwell Jupiter board and it seems to give about the same results as
another active patch antenna I have connected to a Motorola Oncore board.
Bob Q.
- Original Message -
From: "Dave hartzell" <[EM
t;ground". I solved it by
supplying the phase detector and error amplifier with a separate 5 V supply.
I tied the ground pin of the new 5 V regulator very close to the phase
detector ground pin.
Bob Q.
- Original Message -
From: "Bruce Griffiths" <[EMAIL PROTECTED
ng 10 MHz OCXO and my
'scope. It looks to be stable to a few parts in 10^9. Let me know if you're
interested, I'll be happy to send the schematic. Meanwhile, I'll keep reading
and learning.
Bob Q.
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