1. PCM有幾種,是否有國際標準規格?
2. PCM是否可以回朔相容(backward compatiable)? 新的接受器使用PCM-S ,但是舊發射器是PCM,兩者之問差異在那裡?
3. 我想再買一個接收器module, 是否可行?
舊發射器規格
JR X-347
Transmitter:
Model No. NET-C127HZ
Encoder 8 channel computer system
RF module 50/53/72 MHz (NET-J72P 隨機模組72.95MHz)
Modulation PCM or PPM
Output Pulse 1000us/2000us (1500 neutral)
Receiver:
Model No. NER-627XZ (spec. NER-627X "G series")
Type 7-ch FM-ABC&W, ACI PCM
Frequency 50/53/72 MHz
Sensitivity 5uV min.
Selectivity 8KHz/ 50dB
Servo:
Model No. NES-517
Torque 40.2 oz/in
Speed 0.27 sec/60 deg.
Input pulse 1.5MS +- 600us
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