FCC ID: CLIFFHANGER APPENDIX 6 TRANSMITTER TUNE~UP PROCEDURE Attach 12.0 DEC power supply. Using a spectrum analyzer and a short pick-up antenna, lock for 75 MHz signal with sufficient scan width to see 30-150 MHz spurious. Adjust T1, T2, T3 and T4, for maximum output at operating frequency and minimum output at any harmonics. Repeat Step 3. Check for minimum emissions from 30 to 760 MHz.
FCC ID: CLIFFHANGER APPENDIX 7 CIRCUITS AND DEVICES TO STABILIZE FREQUENCY Transmitter output frequency is determined and stabilized by PLL IC3 and 8 MHz reference crystal controlled oscillator.
FCC ID: CLIFFHANGER APPENDIX 8 CIRCUITS TC SUPPRESS SPURIOUS RADIATION, Final RF amplifier spurious emissions are attenuated by a WPI" matching network consisting of L5, C38, C40, T4, C41, T5, C42 and Lé.