[DSP-10] OCXO ready....

Sat, 1 Jun 2002 12:27:04 EDT

Hi folks....

 long time ago I have been talking about the availability of surplus OCXOs 
over here in Germany and Europe to gain the needed stability for the DSP-10 
project.
There are none on the surplus market over here, and if, they are very 
expensive. This situation brought us up to start the development of an new, 
affordable OCXO in the low-price range but with all the possibilities and 
specifications of  the "high-society"  high-priced units.

Since more then 6 weeks Walter and I have been working hard (outside our 
normal daylight duty) to find an solution who is able to compete with the 
specs of  the OCXOs found on the market. Now we have finished the design and 
have been building the first units. Lots of problems needed to be solved. One 
of the biggest problem was the design of the heater. It was a nightmare, but 
after all we are able to keep the temperature variation of the osc. cavity 
below 0,06 degrees Celsius during an day-night cycle due to a special 
oven-cavity and regulation circuit. The unit is also voltage controllable to 
be steered by a GPS RX and his interface-board, like the one from Brooks 
Shera, W5OJM.

Its over now and final tests have begun. The results so far are satisfy our 
goals.

For those who like to see more, take a look on our <A 
HREF="http://www.walter-schroeer.de">European-DSP-10 website</A> under the 
button <A HREF="http://www.walter-schroeer.de/id24.htm">New OCXO</A> 
maintained
 by DC8SW and DC9UP. (<A HREF="http://www.walter-schroeer.de">
www.walter-schroeer.de</A>)

For even more information pse contact me by e-mail : <A 
HREF="mailto:[email protected]">[email protected]</A>  or   Walter at   
<A HREF="mailto:[email protected]">[email protected]</A>

73 de Walter and Hermann 