[Premium-Rx] Repairing reference oscillators with oddball frequencies

[Raymond Boute]

Dear All,

I wish to thank again all group members who responded to my question 
about obtaining the SM7030 software for testing the AOR AR7030 
receiver. With their help, I obtained the software (dated 1995) which 
I run on an old laptop.

Indirectly related to that, the reference oscillator in my AR7030 
cannot be adjusted higher than 11.13587 MHz whereas it should be 
11.13625 MHz. Since frequency readings are off, replacement seems 
necessary. I thought about several options.

(a) The ideal: an identical or compatible 11.13625 MHz TCXO.  I 
contacted AOR dealers in various countries, but they don't stock this 
(25 year old) part anymore.

(b) A custom-made 11.13625 MHz TCXO.
Q: Does anyone know companies who might produce such a part in single 
quantities at an affordable price?

(c) A programmable oscillator, which comes at a few bucks (euros, 
quids). The problem is that the specs for these devices mention 50 
ppm stability as compared to 0.1 ppm for the original TCXO.
    Of course, the oscillator can be programmed experimentally such 
that the output is 11.13625 MHz at the temperature inside the unit 
after warm-up, in which case one may expect much better than 50 ppm. 
An oven might be even better, but I have not seen this done anywhere.
Q: does anyone have experience with this?

Any solutions or suggestions would be most welcome.

73
Raymond ON4DBV