TNC2.IDX 1. LED 2. BANDPASS FILTER 3. FROM 10 4. NOISE CURE 5. TX DRIFT 6. FIRMWARE MOD 7. FROM 14 8. FROM 13 9. CPU SPEED INCREASE 10. FROM 2 11. FROM 3 12. UNK 13. FROM 1 14. FROM 8 15. SENSITIVITY 16. CMOS CHIPS 17. RELIABILITY 18. HOW TO CALIBRATE TNC