Function:

generate keyed CW sidetone for injection into audio chain

Input/Output:

• POWER: 9-15 VDC, 5.5 x 2.5mm power jack
• KEY IN: Zin >=10K, to be driven by CMOS (LO=key-down), RCA Jack
• AF OUT: 1 Volt pk-pk

Operator Controls:

• No operator controls anticipated

Key Specs or Limitations:

• Frequency: 750-800 Hz
• Output Amplitude 1 V p-p (nom)
• Output AC-coupled
• No output when un-keyed
• Sine or near-sine preferred

Misc Notes:

This stage not required in receiver that self-generates sidetone from transmit mixer