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Page 17

FCC ID# BRWNETZS75

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Summary of Contents for NET-ZS75

Page 1: ...2 Application 1 3 Construction 2 0 ENCODER THEORY OF OPERATION 3 0 THEORY OF OPERATION 3 1 General 3 2 Block Diagram 4 0 FAILURE ANALYSIS 5 0 APPENDICES 5 1 Transmitter Block Diagram 5 2 Transmitter S...

Page 2: ...ransmitter Model FCC ID NET J75P BRW8ZCNET72FP XS3 BRWXS3 XR 3 BRWXR 3 Separate Applications for each transmitters and for the receivers are submitted as required by the Commission The Manufacturer Ja...

Page 3: ...e in the rhythm of the PPM pulse train Both transmitter and receiver are very narrow band units they have been designed to comply with the European requirements of 10 KHz channel spacing 1 3 Construct...

Page 4: ...ore these digital representations of the analog control input into a temporary memory RAM supply this serial data stream to a buffer driver for modulation of the RF Transmitter provide housekeeping of...

Page 5: ...ys Frequency Sift Keying FSK of the carrier frequency whereby the output frequency is either low or high due to the symmetrical FSK modulation process the center output frequency cannot be directly me...

Page 6: ...a buffer Q13 The pulses generated by the CPU are transferred to the VCO so as to modulate the radio wave this part is strictly shielded from electric magnetic noise The IC3 BU2630F is a PLL phase Loc...

Page 7: ...ascertain that single component failure will not result in unauthorized radiation It should be noted that component failure would result in return of the unit to the factory or to an authorized repair...

Page 8: ...just L4 to make the current minimum 5 Extend the aerial fully and adjust L5 and L6 to get peak 6 Adjust the frequency First set up the Spectrum Analyzer Level Scale is Log 5dB Div Center Frequency 75...

Page 9: ...SW GD PCB Trim PCB VDD Power Supply DC 9 6 12 0V Dry Battery or Ni cd battery Pack BUZZER Phone Terminal Power Indicator TH ABS Indicator TH Speed Indicator TH ACC Indicator LCD Panel LCD Back Light B...

Page 10: ...gulator VCO A Power Amp mp A Controller IC1 MC68HC908QY1 Frequency Selector SW1 SW2 Power ON OFF SW Q4 Q7 2SA1298 Q6 Q8 2SC4738 ANT GND Vcc MOD GND FCC ID BRWNETZS75 Figure 5 1 2 Transmitter Block Dia...

Page 11: ...0 1 6 2 C 2 0 1 1 X z H M 6 1 2 3 C 2 0 1 4 W S R E T N E C C V D D V F E R V C C V D D V C C V D D V C C V F E R V C C V D D V C C V D D V D x T D x R D E L R E W O P 3 R 2 7 4 2 8 0 6 1 7 C 1 0 1 6...

Page 12: ...2 4 P J R E P M U J 1 2 3 P J R E P M U J 1 C 2 0 1 2 L H u 0 0 1 1 L H u 0 0 1 1 2 5 P J R E P M U J 2 D 4 0 S M C EX 10 RF Mount 1 2 6 W S 2 T E 1 2 7 W S 2 N T B 1 2 5 W S 2 T E 1 2 1 W S 3 T E 1 2...

Page 13: ...H3p R46 680 74R k65 Q12 2SK882 84R 065 C74 C CH22p 07C 201 34R k74 96C NON C62 UJ4pF C65 CH12p Q11 2SC4519 6 1P k1 25C 174B 63R 93 45C NON Q9 2SC4738Y Q10 2SC4738Y C53 B182J R37 180 15C 201 R31 10k R3...

Page 14: ...LATION RESISTANCE 500M OHMS MIN AT 100V DC 12 SHOCK TEST DROPPING FROM 120cm HIGHT 10 TIMES HARD WOODEN BOARD Drop it onto a hard wooden board Thickness 30mm hor 6 directions XX YY ZZ This should be 1...

Page 15: ...Page 15 FCC ID BRWNETZS75...

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Page 17: ...Page 17 FCC ID BRWNETZS75...

Page 18: ...Page 18 FCC ID BRWNETZS75...

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