FF-0.8 Product Summary

The FF-0.8 Offers DTMF Control capabilities

The FF-0.8 is a small, programmable DTMF control board that is well suited for remote sites or basic repeater controllers where simple on/off DTMF control is desired:

The FF-0.8 features 8 individually controlled outputs -- each output can sink up to 250 mA.
There are 8 "enable" inputs that can be programmed to any of the 8 outputs. This allows "and-PL" or "not-PL" logic to be implemented with no external circuitry.
DTMF command inputs may be gated by a COS signal or by idle time accept. The idle time accept mode executes detected DTMF commands 4 seconds after the last digit is pressed.
KEY and CW output for command acknowledgement (if desired). KEY signal goes to ground while CW telemetry is being sent.
Optional output to send all detected DTMF digits to an RS-232 terminal or PC.
User defined command prefixes -- allows "on/off" commands to be customized.
The FF-0.8 is small -- only 3" square.

FF-0.8 Specifications
Power requirement	+8.5 to +12 volts @ 50 mA
Digital signals:
Inputs	0 - 40V
Outputs	0 - 40V (250 mA max)
KEY output	0-40V (1A max)
Analog signals:
DTMF Input impeadance	100 Kohms (AC coupled)
CW Audio output leve	l0 - 5.0 Vpp (AC coupled)
CW Audio Output impeadance	1 Kohms
Board dimensions	3.0" x 3.0"

The FF-0.8 Offers DTMF Control capabilities

FF-0.8 Specifications