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Appendix 1 : Design Specification Model RAY210
General : FCC Part 80, ITU Radio Regulations Appendix 18.
DOC CAT V RSS-18 Issue 2.
1.3.1 Electrical Specificatio ns;
Transmitter
Channel 51 USA /International
Frequency Stability +/-5ppm(+/-0.0005%)
Channel Spacing 25KHz Increment
Power Output 25Watts Switchable to 1 Watt
into 50 ohm at 13.6 Vdc.
Modulation Frequency M odulated 16 F3
(+/-4.5KHz at 1000Hz)
Modulation Audio within the limit of +/-3dB at
6dB/oct freq. curve (300-2.5KHz)
Hum & Noise Level Greater than 40dB below audio
Audio distortion less than 10% at 1KHz for +/-
3KHz deviation
Spurious & Ha r monic greater than 70dB below carrier
power.
Antenna Impedance 50 ohms
Receiver
Channel 93 (Includes 10 WX Channels)
Frequency R a nge 156.025 to 163.275MHz in
25KHz increments
Frequency Stability ±5ppm (±0.0005%)
–20degree C to +50degree C
Sensitivity 0.3µV for 12dB SINAD
Squelch Se ns . Threshold 0.2µV or better
Tight Sque lc h Sens. 1µV
Adjacent CH Rejection greater than 70dB
Spurious Image Rejection greater than 70dB
Intermodulation Rejection
greater than 70dB
Audio Output 4 Watts @ 4 ohms with Less
than 10% distortion
Hum & Noise greater than 40dB
Operating Requirement
Input Voltage 13.6 Vdc ±15% (11.6 to 15.6Vdc)
Current Required for
Transmit Less than 5.5 A at 25 Watts
Less than 1.3 A at 25 Watts
Operating Temperature –20º C to +50º C