Hi Jason,
Interesting challenge! I did some quick calcs: say the note C at
highest range setting (=4) of A-111 is 2093Hz (if I m an octave out,
then just +/- 1V as appropriate), then to get 14000Hz, input voltage
is 2.74V, and for 14200Hz it s 2.76V that leaves just 0.02V=20mV to
play with! For comparison, a standard semitone s worth = 1/12 V =
83mV, i.e. 4 times as much. Your requirement thus seems quite
demanding! Initial thoughts are that you will probably need at least a
pretty good voltmeter to do this, if not a frequency counter. You
could input 2.75V to CV1, and then try setting CV2 input pot so that
the usual A-100 (nominal) +/-5V range (from LFO/whatever) is
attenuated to +/-10mV, assuming it s possible to adjust the pot to
give you that (due to the exponential nature of the normal, i.e. not
the linear FM , input the centre frequency won t be quite at this
value, but with such a narrow, non-standard range, I suspect this is
not of much concern ). I ll have a quick play tonight, and if I come
up with anything else, I ll let you know.

Tim

[The views expressed above are entirely those of the writer and do not
represent the views, policy or understanding of any other person or
official body.]

--- In Doepfer_a100@y..., jason kahn <kahn@a...> wrote:
> hello
> hello i have a an a100 system and am trying to work with it in the
> range of only 14000-14200 hz (for a special composition).
> i am using modules like the a-111 vco2, the a-110 vco and the a-145
> lfo, plus different filter modules, etc.
> my question is: does anyone know how i can somehow measure this
> frequency range on the doepfer and only stay in this range
> thanks in advance for any help.
> best
> jason kahn