[linrad] Re: PTS 310 synthesizer

[David Garnier <wi.rr.com; dgarnier@xxxxxxxxxxxxxxxx>]

Rein,

I have a PTS120 and I was surprised to find that it did not contain an 
on-board
10 Mhz reference oscillator, I wasn't to pleased.  An on board 
oscillator appears to
have been an option. These things maybe normally supplied from a master 
10 Mhz
source depending on the usage.
The PTS's logic circuitry is mostly composed of the old style ECL logic, 
(I wish I had
some sort of schematic for mine.)  There was no easy way to generate or 
steal an
+5 or +12 voltage source from the PTS's power supply to run an oven 
oscillator.
Ended up adding a small analog supply inside the PTS to power the oven 
oscillator.
I also added a mini-circuits 1:1 isolation transformer for coupling the 
10 Mhz source
to the PTS.

Dave Garnier - wb9own



Rein A. Smit wrote:
> Hello All,
>
> I am looking for info on the PTS 310 Synthesizer.
>
> My unit has no frequency selection switches , no/off and no phase 
> selection switch either.
> I hard wired the remote switch for 28150 Khz. with the latching and 
> remote operation
> enabled just to test it.
> When I turn the unit on,  I get a broad band noise, quite strong, not 
> a trace of any
> generated signal and no 10 MHz signal from the internal standard.
> Removing the 50 pin remote connector has no effect either.
>
> 73 Rein W6/PA0ZN
>
>
>
>
>
> #############################################################
> This message is sent to you because you are subscribed to
>  the mailing list <linrad@xxxxxxxxxxxxxxxxxxxxx>.
> To unsubscribe, E-mail to: <linrad-off@xxxxxxxxxxxxxxxxxxxxx>
> To switch to the DIGEST mode, E-mail to 
> <linrad-digest@xxxxxxxxxxxxxxxxxxxxx>
> To switch to the INDEX mode, E-mail to 
> <linrad-index@xxxxxxxxxxxxxxxxxxxxx>
> Send administrative queries to  <linrad-request@xxxxxxxxxxxxxxxxxxxxx>



#############################################################
This message is sent to you because you are subscribed to
 the mailing list <linrad@xxxxxxxxxxxxxxxxxxxxx>.
To unsubscribe, E-mail to: <linrad-off@xxxxxxxxxxxxxxxxxxxxx>
To switch to the DIGEST mode, E-mail to <linrad-digest@xxxxxxxxxxxxxxxxxxxxx>
To switch to the INDEX mode, E-mail to <linrad-index@xxxxxxxxxxxxxxxxxxxxx>
Send administrative queries to  <linrad-request@xxxxxxxxxxxxxxxxxxxxx>


LINRADDARNIL