Can anyone tell me what the input impedance for the
accessory Mic input is on a CDM-750 UHF or how much drive it takes to get 3KHz
deviation?
I am trying to hook one up to use for an autopatch
and cannot get enough drive from the patch to be useful. I suspect an impedance
mismatch.
I
Rob,
The input impedance of either the front panel mike input, or the
external mike input on Pin 2 of the Accessory Connector, is 560 ohms.
Both inputs are factory-set at 14mV for 3kHz deviation, but the gains
can be adjusted in CPS.
The above information was found in Paragraph 2.3.2 of the
Should be 600 ohms at pin 3 (ext mic). You can get around this by
turning up the mic gain in the programming software.
James
Rob Chris wrote:
Can anyone tell me what the input
impedance for the accessory Mic input is on a CDM-750 UHF or how much
drive it takes to get 3KHz
3 matches
Mail list logo
