[time-nuts] Are there any rubidiums programmahttps://mail.google.com/mail/?shva=1#inboxble to 40 MHz?
stanw1le at verizon.net
Tue Mar 26 12:31:24 EDT 2013
I should of been clearer, Thanks for your comments.
final configuration is:
OCXO as a 10 MHz reference to the 106.5 MHz PLL then the DB6NT
multiplier chain for the LO.
All of the stability I need for a contest weekend.
On 3/26/2013 1:21 AM, Rex wrote:
> Please tell us if I am parsing the content of your message correctly
> with my inserted comments.
> On 3/25/2013 9:09 AM, Stan, W1LE wrote:
>> Hello Dave,
>> The problem I experienced with a Rb at 10 MHz stabilizing a AD6IW PLL
>> at 106.5 MHz
>> for a DB6NT 10 GHz G2 transverter,
> I assume by "stabilizing" you mean that the rubidium was providing the
> reference frequency to the PLL.
>> was the significant microphonics after multiplication.
>> The original xtal oscillator did not have microphonics, but would drift.
>> My solution was to add a ISO-Temp 10 MHz OCXO as a reference to the
> By "add" I think you mean replace, as in, the rubidium is no longer
> used but the OCXO has replaced it as the PLL's reference. If you
> really meant add, that would imply that somehow the rubidium is
> disciplining the 10 MHz OCXO.
>> This provided me with the frequency accuracy and stability
>> needed for a weekend of microwave contesting, USB/CW
>> My 10 GHz operation is portable and I rove.
>> Stan, W1LE Cape Cod FN41sr
>> On 3/25/2013 10:17 AM, David Kirkby wrote:
>>> I'm possibly looking for a 40 MHz source and I know some of the
>>> rubidiums are programmable. But can any of the affordable ones be
>>> programmed to work at 40.0 MHz?
>>> I was looking for a source to drive this 144 MHz -> 10 GHz transceiver.
>>> The TCXO oscillator is off the board and a separate item, but costs
>>> £40 and then one ideally wants to lock that to a more precise source.
>>> The oscillator will lock to an external 10 MHz source, but then one
>>> needs to buy both a 10 MHz rubidium as well as this 40 MHz TCXO. Hence
>>> I was wondering if there was a cheaper more compact solution, which
>>> just used a rubidium, and dispensed with a TCXO.
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