13.587 or 8.670 kHz generator

[mimu]

Hello.
Does anyone knows a device for generating a 13.587 (or 8.670) kHz sine signal for setting the deviation on a fm transmitter with the carrirer null (Bessel) method?
Perhaps with additional modulated 10.7 MHz output?

Thank you.

[Jan]

Usually you don't need any special equipment, just a PC with sound output and some free sine generator.

I got an idea now that this can be implemented into the FM Scope as well.