On Dec 13, 2014, at 9:47 PM, Chris Albertson albertson.ch...@gmail.com
wrote:
Actually I've added some features to it like a 2 line by 16 character LCD
display and some status LEDs. And I can log data to a computer via a USB
cable so it is easy to plot data and it is using my more
Hi
On Dec 14, 2014, at 12:47 AM, Chris Albertson albertson.ch...@gmail.com
wrote:
I tried to see just how simple, low cost and self contained I could make a
GPSDO. I started with the Lars Walenius design then removed everything I
could from it. I replace all the software with just a
It's not worth making a PCB, not when you can buy the whole thing already
assembled for $3 with free shipping. I use these just as if they where a
single chip and put them in a socket. See eBay 141505833625 as an example.
Those holes are in 0.1 inch centers so you can figure out the size. (I
Well, thanks, everyone, for the information. I appreciate the help.
First, I am presently not up to adding another project to my long list
of projects. I get whiplash every time I walk into the lab. Building a
GPSDO sound like fun. Perhaps down the line.
I figured I should add some
Hi
Ok so down to two choices:
LTE Lite:
1) Comes up nice and fast (it’s a TCXO)
2) Modern GPS receiver
3) Good documentation
4) Very low power
5) Nice small size
6) Needs a box
7) You know where to find Jackson Labs if there is a problem
8) Getting a couple more in a couple years may
Thanks. See below:
On 12/14/2014 1:48 PM, Bob Camp wrote:
Hi
Ok so down to two choices:
LTE Lite:
1) Comes up nice and fast (it’s a TCXO)
2) Modern GPS receiver
3) Good documentation
4) Very low power
5) Nice small size
Good so far.
6) Needs a box
Boxes I have.
7) You know where
Hi
On Dec 14, 2014, at 4:20 PM, Dave Daniel kc0...@gmail.com wrote:
Thanks. See below:
On 12/14/2014 1:48 PM, Bob Camp wrote:
Hi
Ok so down to two choices:
LTE Lite:
1) Comes up nice and fast (it’s a TCXO)
2) Modern GPS receiver
3) Good documentation
4) Very low power
I don't mean to one up Chris, but if you are looking for
inexpensive, I have bought the same Pro Mini from this seller for
$2.58. Like Chris says, you can't buy the parts this for this.
And if you need the 3.3 VDC version: http://www.ebay.com/itm/191182699659
I bought six of the Pro Mini's from
I have to watch what I'm typing a little closer. I meant to say You
can't buy the parts this cheap.
Joe Gray
W5JG
On Sun, Dec 14, 2014 at 8:56 AM, Chris Albertson
albertson.ch...@gmail.com wrote:
It's not worth making a PCB, not when you can buy the whole thing already
assembled for $3 with
On 13 December 2014 at 06:55, David J Taylor
david-tay...@blueyonder.co.uk wrote:
Or get a more modern using such as the LTE-Lite evaluation kit. I see a
19.2 MHz version as item 171504588307, but 10 MHz and 20 MHz versions have
also been made available. It's a lot smaller and lighter than
one other option if just using this for a lab reference is to build one.
You'd need a working GPS receive and almost any OCXO. Then the extra parts
are under $10. and it's simple enough that you don't need a circuit printed
board. Years ago a GPSDO controller was a complex beast using many ICs
Of Hal Murray
Sent: Friday, December 12, 2014 6:49 PM
To: Discussion of precise time and frequency measurement
Cc: hmur...@megapathdsl.net javascript:;
Subject: Re: [time-nuts] Which First GPSDO to buy?
kc0...@gmail.com javascript:; said:
For a newcomer to this field, which GPSDO would
:;] On
Behalf Of Hal Murray
Sent: Friday, December 12, 2014 6:49 PM
To: Discussion of precise time and frequency measurement
Cc: hmur...@megapathdsl.net javascript:;
Subject: Re: [time-nuts] Which First GPSDO to buy?
kc0...@gmail.com javascript:; said:
For a newcomer to this field, which GPSDO
:;] On
Behalf Of Hal Murray
Sent: Friday, December 12, 2014 6:49 PM
To: Discussion of precise time and frequency measurement
Cc: hmur...@megapathdsl.net javascript:;
Subject: Re: [time-nuts] Which First GPSDO to buy?
kc0...@gmail.com javascript:; said:
For a newcomer to this field, which
On Sat, Dec 13, 2014 at 9:36 PM, Bob Camp kb...@n1k.org wrote:
The problem with “build it yourself” is that there is no way do know if
you got it right unless you have something to compare your design to. You
*will* make mistakes as you build one of these….
I think you will have the same
I tried to see just how simple, low cost and self contained I could make a
GPSDO. I started with the Lars Walenius design then removed everything I
could from it. I replace all the software with just a small loop with
about a dozen lines of code so it would be easy to understand.
My goal was to
Do you have the details on your stripped down version posted somewhere
accessable?
Joe Gray
W5JG
On Sat, Dec 13, 2014 at 10:47 PM, Chris Albertson
albertson.ch...@gmail.com wrote:
I tried to see just how simple, low cost and self contained I could make a
GPSDO. I started with the Lars
Dave welcome to the time nuts. Oh the question we all wonder about. What
should I buy? It depends on the need and the key question is what do you
need to do. A reference is a mighty wide statement on this forum. Is it ham
radio...
Its easy to get bitten by the accuracy bug. Its starts out simple
Hi
A couple of differences:
1) The Lucent is a two box system, the GPSTM is a single box
2) The GPSTM is 1/2 of an operating pair. The Lucent ($150 version) is a full
pair.
3) Both units are “fixed coefficient” boxes. Neither one can be modified (the
way a T Bolt can).
4) The GPSTM works
kc0...@gmail.com said:
For a newcomer to this field, which GPSDO would be better to purchase as a
first-time acquisition: ...
I'd suggest the Lucent KS24361. Lots of people here have them so it will be
easy to get advice.
Aside from the GPSDO, you also need a power supply and antenna,
...@megapathdsl.net
Subject: Re: [time-nuts] Which First GPSDO to buy?
kc0...@gmail.com said:
For a newcomer to this field, which GPSDO would be better to purchase
as a first-time acquisition: ...
I'd suggest the Lucent KS24361. Lots of people here have them so it will be
easy to get advice
the group here.
Anthony
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Hal Murray
Sent: Friday, December 12, 2014 6:49 PM
To: Discussion of precise time and frequency measurement
Cc: hmur...@megapathdsl.net
Subject: Re: [time-nuts] Which First GPSDO
All,
As a relative newcomer to this list, I have been reading the posts
concerning GPSDOs. I have what I hope is a simple question.
For a newcomer to this field, which GPSDO would be better to purchase as
a first-time acquisition:
- This LUCENT/SYMMETRICOM Z3810AS, KS24361 L101/L102, HP-KIO
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