Elecraft

10 MHz reference osc. suggestion?

Classic

List

Threaded

10 messages Options

Gary Peterson

10 MHz reference osc. suggestion?

Does anyone have any recommendations for a particular 10 MHz GPS disciplined oscillator that would work well as an external reference for a K3S? I might also use a GPSDO as an external time base for my frequency counter. Either recommendations or products one should avoid would be most appreciated. Feel free to reply off list.

Thanks in advance.

Gary, K0CX
[hidden email]
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

Dave Van Wallaghen-2

Re: 10 MHz reference osc. suggestion?

Hi Gary,

Here is the one I use:
http://www.leobodnar.com/shop/index.php?main_page=product_info&cPath=107&products_id=234

It feeds my K3 and I also use the other port to calibrate the oscillator
for the main MCU on all the K2's I service.

73,
Dave, W8FGU

On 2/5/2020 2:43:46 PM, "Gary Peterson" <[hidden email]> wrote:

>Does anyone have any recommendations for a particular 10 MHz GPS disciplined oscillator that would work well as an external reference for a K3S? I might also use a GPSDO as an external time base for my frequency counter. Either recommendations or products one should avoid would be most appreciated. Feel free to reply off list.
>
>Thanks in advance.
>
>Gary, K0CX
>[hidden email]
>______________________________________________________________
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:[hidden email]
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html
>Message delivered to [hidden email]

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

David Box-2

Re: 10 MHz reference osc. suggestion?

He also sells the Mini version with one output, I have the Mini on the
K3 and the dual output version on my workbench.

http://www.leobodnar.com/shop/index.php?main_page=product_info&cPath=107&products_id=301

de Dave K5MWR

On 2/5/2020 13:48, Dave Van Wallaghen wrote:

> Hi Gary,
>
> Here is the one I use:
> http://www.leobodnar.com/shop/index.php?main_page=product_info&cPath=107&products_id=234
>
> It feeds my K3 and I also use the other port to calibrate the
> oscillator for the main MCU on all the K2's I service.
>
> 73,
> Dave, W8FGU
>
>
> On 2/5/2020 2:43:46 PM, "Gary Peterson" <[hidden email]> wrote:
>
>> Does anyone have any recommendations for a particular 10 MHz GPS
>> disciplined oscillator that would work well as an external reference
>> for a K3S? I might also use a GPSDO as an external time base for my
>> frequency counter. Either recommendations or products one should
>> avoid would be most appreciated. Feel free to reply off list.
>>
>> Thanks in advance.
>>
>> Gary, K0CX
>> [hidden email]
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

Conrad PA5Y

Re: 10 MHz reference osc. suggestion?

In reply to this post by Gary Peterson

Leo Bodnar, small and work great.

http://www.leobodnar.com/shop/index.php?main_page=product_info&products_id=301

73

Conrad PA5Y

-----Original Message-----
From: [hidden email] <[hidden email]> On Behalf Of Gary Peterson
Sent: 05 February 2020 20:44
To: [hidden email]
Subject: [Elecraft] 10 MHz reference osc. suggestion?

Does anyone have any recommendations for a particular 10 MHz GPS disciplined oscillator that would work well as an external reference for a K3S? I might also use a GPSDO as an external time base for my frequency counter. Either recommendations or products one should avoid would be most appreciated. Feel free to reply off list.

Thanks in advance.

Gary, K0CX
[hidden email]
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email]
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

Mooneer Salem

Re: 10 MHz reference osc. suggestion?

In reply to this post by Gary Peterson

I used this one from Geppetto Electronics when I last ran temperature
compensation on my KX3:
https://www.tindie.com/products/nsayer/gps-disciplined-ocxo/. One advantage
is that it also produces NMEA output along with PPS, so one could build a
GPS-based NTP server at some point in the future. It also uses a OCXO
instead of a TCXO, so temperature changes should be less of a factor in its
accuracy (though I'm not sure that matters much for normal ham radio use).

-Mooneer K6AQ

On Wed, Feb 5, 2020 at 11:45 AM Gary Peterson <[hidden email]> wrote:

> Does anyone have any recommendations for a particular 10 MHz GPS
> disciplined oscillator that would work well as an external reference for a
> K3S? I might also use a GPSDO as an external time base for my frequency
> counter. Either recommendations or products one should avoid would be most
> appreciated. Feel free to reply off list.
>
> Thanks in advance.
>
> Gary, K0CX
> [hidden email]
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

Wes Stewart-2

Re: 10 MHz reference osc. suggestion?

In reply to this post by Dave Van Wallaghen-2

I have a Bodnar dual output GPSDO although I don't use it on my K3S. Be advised
that the software is very clunky and while you can get two different frequencies
out, there are limitations on what they can be.

Frankly, I don't know why you would want something like this for the K3(S). The
high stability TCXO is fine if you leave the radio powered continuously as I do,
otherwise, it's quite good after about a 20 minute warmup. Use your counter to
measure the TCXO directly and adjust the ref cal parameter manually.

Wes N7WS

On 2/5/2020 12:48 PM, Dave Van Wallaghen wrote:

Clay Autery-2

Re: 10 MHz reference osc. suggestion?

In reply to this post by Gary Peterson

I use the Dual Output part from Leo Bodnar so I can set one at 10MHz,
and the other on a different frequency for use with my VNA.

Additionally, I use Bodnar's NTP Server to serve extremely accurate time
to everything that I own with an electronically settable clock,
including my K3s (indirectly).

There are better units available... maybe... but NOT at a cost I am
willing to pay.

I am VERY happy with my Bodnar stuff.

73,

______________________
Clay Autery, KY5G
(318) 518-1389

On 02/05/20 13:43, Gary Peterson wrote:

> Does anyone have any recommendations for a particular 10 MHz GPS disciplined oscillator that would work well as an external reference for a K3S? I might also use a GPSDO as an external time base for my frequency counter. Either recommendations or products one should avoid would be most appreciated. Feel free to reply off list.
>
> Thanks in advance.
>
> Gary, K0CX
> [hidden email]
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

bdenley

Re: 10 MHz reference osc. suggestion?

I bought the BG7TBL one for about $160. I worked perfectly right out of the box.

Brian Denley
KB1VBF
Sent from my iPad

> On Feb 5, 2020, at 9:16 PM, Clay Autery <[hidden email]> wrote:
>
> I use the Dual Output part from Leo Bodnar so I can set one at 10MHz, and the other on a different frequency for use with my VNA.
>
> Additionally, I use Bodnar's NTP Server to serve extremely accurate time to everything that I own with an electronically settable clock, including my K3s (indirectly).
>
> There are better units available... maybe... but NOT at a cost I am willing to pay.
>
> I am VERY happy with my Bodnar stuff.
>
> 73,
>
> ______________________
> Clay Autery, KY5G
> (318) 518-1389
>
>> On 02/05/20 13:43, Gary Peterson wrote:
>> Does anyone have any recommendations for a particular 10 MHz GPS disciplined oscillator that would work well as an external reference for a K3S? I might also use a GPSDO as an external time base for my frequency counter. Either recommendations or products one should avoid would be most appreciated. Feel free to reply off list.
>>
>> Thanks in advance.
>>
>> Gary, K0CX
>> [hidden email]
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

K1FFX

Re: 10 MHz reference osc. suggestion?

In reply to this post by Gary Peterson

If a build-from-kit solution would work for you, I can recommend two kits
from
qrp-labs.com <http://qrp-labs.com/> . This is the ProgRock
"triple programmable crystal" kit, which can be GPS-disciplined by the
QLG-1 GPS receiver. I've built these (and other) kits from QRP Labs: high
quality, excellent build instructions, and very economical. If a sine wave
is desired for your application, you could add an appropriate (probably 30
meter)
LPF kit.

Best -

Bruce K1FFX

-----
Bruce Rosen
K1FFX
K2/100 6982 KSB2 KAT100-1 KAF2 KIO2

--
Sent from: http://elecraft.365791.n2.nabble.com/
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

Bruce Rosen
K1FFX
K2/100 6982 KSB2 KAT100-1 KAF2 KIO2

Clay Autery-2

Re: 10 MHz reference osc. suggestion?

That looks like a fun project. I may build that pair of units as a
field unit...

______________________
Clay Autery, KY5G
(318) 518-1389

On 02/05/20 21:37, K1FFX wrote:

> If a build-from-kit solution would work for you, I can recommend two kits
> from
> qrp-labs.com <http://qrp-labs.com/> . This is the ProgRock
> "triple programmable crystal" kit, which can be GPS-disciplined by the
> QLG-1 GPS receiver. I've built these (and other) kits from QRP Labs: high
> quality, excellent build instructions, and very economical. If a sine wave
> is desired for your application, you could add an appropriate (probably 30
> meter)
> LPF kit.
>
> Best -
>
> Bruce K1FFX
>
>
>
>
> -----
> Bruce Rosen
> K1FFX
> K2/100 6982 KSB2 KAT100-1 KAF2 KIO2