WB6BNQ wrote:
> Why do all that when the entire instrument is all ready available for cheap ?
>
> Any Rubidium frequency oscillator from Efratrom, Frequency electronics,
> Symmetricom, or the old Datum units, etc., off ebay for $200 or less is
> essentially
> the same thing as this highly over pri
Why do all that when the entire instrument is all ready available for cheap ?
Any Rubidium frequency oscillator from Efratrom, Frequency electronics,
Symmetricom, or the old Datum units, etc., off ebay for $200 or less is
essentially
the same thing as this highly over priced school lab device.
Bill Hawkins wrote:
> Well then, how about kits, or DIY instructions? Something in "The Boy
> Electrician?"
>
> There's only so much you can learn with eBay bargains and deviation
> plots.
>
> Bill Hawkins
>
>
> -Original Message-
> From: John Day
> Sent: Monday, February 23, 2009 8:23 PM
>
Well then, how about kits, or DIY instructions? Something in "The Boy
Electrician?"
There's only so much you can learn with eBay bargains and deviation
plots.
Bill Hawkins
-Original Message-
From: John Day
Sent: Monday, February 23, 2009 8:23 PM
At 07:59 PM 2/23/2009, you wrote:
>Can T
At 07:59 PM 2/23/2009, you wrote:
>Can TAPR put together a group buy on these?
>http://www.teachspin.com/instruments/optical_pumping/index.shtml
>
>-- john, KE5FX
An absolute bargain at just $16,000! Wonderful, do I get a bulk deal for two?
LOL
John
>___
Can TAPR put together a group buy on these?
http://www.teachspin.com/instruments/optical_pumping/index.shtml
-- john, KE5FX
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an
I see. The Hummer clock has a single xtal circuit. When I tried to
monitor it with a scope just now, even in A-B mode with x10 probes, the
data was trash and the clock gives up after about 5 minutes. But if I
leave it alone, it only takes a few minutes to lock in. Same with a
couple of othe
Hi Ed:
Yes, the one shown on Tom's web page:
http://leapsecond.com/pages/sony-wwvb/
uses two 60 kHz crystals in the filter rather than the single crystal like in
the C-max CMMR-6P-60 (Digi-Key p/n: 561-1014-ND) that uses a single crystal.
C-Max is the new name for Temic that made the chip in To
Hi Brooke,
Is there something special about the Sony clock that you want? Before I
found out about Time Nuts & GPSDOs I was looking at using one of these
"atomic clocks" as a source of time and /or frequency. Most of them
have a point where you can get to the time code. Getting to the 60 KHz
One success this day, the Lucent Box shows Green and 15 MHz comes out
and now to check how accurate it is (only joking !!).
Thanks for the help.
73, Dick, W1KSZ
-Original Message-
>From: Stanley Reynolds
>Sent: Feb 23, 2009 10:48 AM
>To: time-nuts@febo.com
>Subject: Re: [time-nuts] RFTGm
Brooke,
The first set of WWVB clocks that showed up in the 90's had
external antennas, among them Oregon Scientific and Sony.
Within a few years they all went with internal antennas and
got ever more compact. RC wristwatches are now common.
I can't make out the model number from my own web photos
OK, that should do it. Now, hopefully I will not let all
the magic smoke out !!
Thanks, Dick, W1KSZ
-Original Message-
>From: Stanley Reynolds
>Sent: Feb 23, 2009 10:48 AM
>To: time-nuts@febo.com
>Subject: Re: [time-nuts] RFTGm-II-XO Data
>
>Is this it ? http://n4iqt.com/rfgmxo/RFGMXO.t
Hi Tom:
I've looked at dozens of Sony "Dream Machine" clocks on eBay and none of them
have WWVB capability. Some are called preset or self setting, but these may
just be using a button cell back up clock.
What is the model number of your Sony WWVB clock?
Have Fun,
Brooke Clarke
http://www.p
Hi,
Put me on the list also.
Thanks!
Corby Dawson
30 Seconds can save a lifetime. Get it done. Its never been easier.
http://thirdpartyoffers.juno.com/TGL2141/fc/BLSrjpTQcxImVtsp1I4ud0g3sh8lLJAlhqMAJGwZKZEbcnSlH6aQmV1jvlW/
___
Is this it ? http://n4iqt.com/rfgmxo/RFGMXO.txt
I think they all receive power on J1 pin 1 +24vdc, Ground pin 2. The power may
normally loop thru one box to another as described in the text document above.
My older non "II" unit needs a load on the GPS antenna connector to be happy I
use a resis
Sorry, maybe I wasn't clear. I will announce details of next group
buy in mid-March. Until then, please wait quietly.
You do not need to send email to me, or to the group at this time.
Please don't reply to this message either.
Thanks,
/tvb
___
time
Sorry, maybe I wasn't clear. I will announce details of next group
buy in mid-March. Until then, please wait quietly.
You do not need to send email to me, or to the group at this time.
Please don't reply to this message either.
Thanks,
/tvb
___
time
I would like one as well.
BTW, I drove an ordinary "quartz" wall clock with the 1 pps output of a
Motorola gps time unit as follows:
use a low pwr ttl Dtype f/f. Clock to 1 pps, data to +5v. Put 180 ohm or
so (as I remember) in series with the q and -q outputs. Carefully find the
clock pulse outpu
Please add me to the next group buy list.
Sincere thanks
- Original Message -
From: ewkeh...@aol.com
To: time-nuts@febo.com
Sent: Monday, February 23, 2009 6:06:19 AM GMT -08:00 US/Canada Pacific
Subject: Re: [time-nuts] Different Thunderbolt versions, group buy
Please add me to
The link I am looking for has the pin-outs for the connectors. Not nice to
hook +24 to a 5v line !!
Thanks, Dick, W1KSZ
-Original Message-
>From: Stanley Reynolds
>Sent: Feb 23, 2009 10:01 AM
>To: time-nuts@febo.com
>Subject: Re: [time-nuts] RFTGm-II-XO Data
>
>Dick,
>
>The RFTG-m-XO is
Dick,
The RFTG-m-XO is at http://www.n4iqt.com/lucentgps/ I'm looking for pictures
now to help id any differences to what you have with the "II". Do you have
pictures of your unit ? I think the "RFTG" is GPSDO and "RFG" has no GPS built
in link at http://www.n4iqt.com/rfgmxo/ , not sure what th
I'd also like to get on the list.
Burt, K6OQK
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
b...@att.net
K6OQK
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I messed up and deleted the link to the Lucent RFTGm-II-XO.
Can someone send it to me again. I tried a Google search
to no avail.
Thanks, Dick, W1KSZ
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Thanks for the alert. I already have several WWVB clocks in my house and shop.
Two are the SkyScan brand (one analog, the other digital); the other is one of
the LaCrosse projection clocks. All three are almost always in agreement;
never differing by more than a fraction of a second. I think
I have a 3801 and would like to have one of the Tboltshow do I get on
the list?
Thanks...
Bill Mason
W5STP
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of ewkeh...@aol.com
Sent: Monday, February 23, 2009 8:06 AM
To: time-nuts@febo
Please add me to the list. Bert Kehren Miami WB5MZJ
**You're invited to Hollywood's biggest party: Get Oscars
updates, red carpet pics and more at Moviefone.
(http://movies.aol.com/oscars-academy-awards?ncid=emlcntusmovi0001)
___
time-
Same for me.
I, also, would like to have another Thunderbolt. I have been very pleased
with the Thunderbolt from the prior group buys.
Joe
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Predrag Dukic
Sent: Monday, February 23, 2009
Please put me down for a TBolt in the next bulk purchase.
73 de
Martin Richmond-Hardy G8BHC
QTH: JO02pa
Skype: callto://martinrh45 or callto://g8bhc-Suffolk
Truphone on my iPhone
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Update on my previous post - tvb has a nice page on WWVB receivers at
http://leapsecond.com/pages/sony-wwvb/
Looks like these receivers might make good wall clocks.
But for checking GPSDO's - not so good:)
Regards,
Mike
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time-nuts mailing list --
To All,
For those who might be interested, here's a good selection of WWVB (60KHz)
wall clocks on sale at $14.00 and up. I have no idea of the quality or the
vendor, but I just ordered two for comparison with GPS.
http://www.giftngadget.com/analog-atomic-wall-clocks.html
Regards,
Mike
__
Well, since people are already announcing their intentions to buy
from the next batch, maybe I would do vise to do the same.
Of course, if I am eligible, as I already bought one from the previous batch.
So, depending on it and on the size of the batch I want to buy one or
two units.
Predra
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