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1.3 SPECIFICATIONS
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 Specifications;
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 Modulated 16F3
(+/-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 & Harmonic greater than 70dB below carrier
power.
Antenna Impedance 50 ohms
Receiver
Channel 93 (Includes 10 WX Channels)
Frequency Range 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 Sens. Threshold 0.2µV or better
Tight Squelch 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