John,
Thank you for your offer but my PTS-040 has its own front panel controls
so I'm served on this side.
I was asking about the remote interface figuring out it was something
that Bill Fuqua had published for controlling the synthesizer, maybe
from a PC.
About the remote control info, I have a sheet entitled
"PTS-040-1600_Prog.doc" that I downloaded some time ago, but I'm not
able to find from where, maybe it was from your page. I has everything
that is needed for external control.
Best regards,
Ignacio, EB4APL
On 09/02/2012 1:56, John Ackermann N8UR wrote:
Jim Lux said the following on 02/08/2012 07:17 PM:
On 2/8/12 3:23 PM, EB4APL wrote:
I want to take advantage of the topic just to ask if anybody has any
manual or schematics of the PTS 040. I realize that the PTS 160 is
close
enough, taking in account the different frequency range, and they use
almost the same modules but it would be nice to have the right manual.
What is about the remote interface? Please, share the info.
Way back in the 80s, I used a PTS and the remote interface, so I'm going
off memory. As I recall, it's basically a BCD parallel thing with a
strobe. The general architecture of their synthesizers is a series of
decade modules, so the parallel interface just extends that to as many
digits as you have modules.
Settling time to the new frequency is pretty fast (<1 microsecond, I
think) but not necessarily phase continuous, and, there can be glitches
during the transition (i.e. if one module switches faster than the
others). no fancy-shmancy DDSes back in those days.
The remote interface is very simple to talk to; in fact, I've wired up
a mating connector with just a bunch of jumpers right in the connector
for a single frequency. It is BCD with a couple of twists -- the
programming info is on some web pages (including one of mine, but I
think I still have an error that needs to be fixed in my description).
There's a guy who will put front panel controls on a remote-interface
PTS, with thumbwheel switches, level control, and BCD connector, along
with nice looking labels, for a very reasonable price. Contact me
off-list if you'd like his contact info; I'm not sure that he wants it
widely published as it's a spare-time business. I've had him modify
several units for me, and been very happy with the results.
John
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