Preventive Maintenance; Specifications - Raymarine Ray215e Owner's Handbook Manual

Maintenance
5.2 Preventative Maintenance
The RAY215E has been constructed to be virtually maintenance free.
Your attention to a few basic points should assure many years of service.
1. Although the unit is waterproof, always keep the unit as dry as possible.
2. Clean the exterior of the unit with a tissue or soft non-abrasive cloth.
CAUTION
Do not use solvents or other chemicals for cleaning this equipment.
3. Inspect the radio case and antenna for any physical damage.
5.3

Specifications

5.3.1 Transmitter
Channels
Frequency Stability
Frequency Range
Channel Spacing
Power Output
Modulation
Modulation Audio Response Shall not vary +1/-3 dB from true 6 dB pre-
FM Hum & Noise level Less than -40dB below audio
Audio Distortion
Spurious & Harmonic Attenuated at least 43+10log Po (below rated
Antenna Impedance
Transmitter Protection Open and short antenna protection circuit for 10
All available US and International VHF Marine
band
+/- 10PPM (+/- 0.001%)
(-20 °C to +50 °C)
156.025 to 157.425MHz
25 kHz Increments
25 Watts switchable to 1 Watt into 50 Ohms at
13.6 VDC
Frequency modulated 16F3
emphasis from 300 to 2500Hz, reference 1000Hz.
Audio frequencies 3-20 kHz shall be attenuated
(at 1 kHz by 60 log f/3 dB. Above 20kHz by 50dB)
Less than 10% at 1kHz for 3kHz deviation
radiated carrier Emissions power) per EN60945
50 Ohm
minutes transmissison
5-3