| Ranger 2980 WX |
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| Frequency Expansion 1) Locate J28. 2) Move jumper from pins 1-2 to 2-3. 3) Locate J4. 4) Unplug this blue-black-white plug, and plug into J2. 5) On the solder side of the main PCB, remove the 100 ohm resistor between pins 15 and 16 of IC5. VR1 AM S-Meter VR2 SSB/CW S-Meter VR3 SSB Squelch Range VR4 AM Squelch Range VR5 FM Deviation VR7 Carrier Balance VR8 RF Transmit Meter VR10 Final TX Bias Adjust VR11 Driver TX Bias Adjust VR12 SSB Power VR13 AM High Power VR14 Modulation VR16 AM Low Power VR20 Final TX Bias VR21 Transmit Frequency Adjust VR803 Power Range Adjust |