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4-9
Technical Description
4.4
4.4
4.4
4.4
4.4 SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
4.4.1 Transmitter
4.4.1 Transmitter
4.4.1 Transmitter
4.4.1 Transmitter
4.4.1 Transmitter
Channels
All available US, International, and Canadian VHF
Marine Band
Frequency Stability
+/- 10 PPM (+/- 0.001%)
(-20°C to +50°C)
Frequency Range
156.025 to 157.425 MHz
Channel Spacing
25 kHz increments
Power Output
25 W switchable to 1W into 50 ohms at 13.6 VDC
Modulation
Frequency modulated 16F3
(+/-4.5 kHz at 1000 Hz)
Modulation Audio Response
Shall not vary +1/-3dB from true 6dB pre-emphasis
from 300 to 2500 Hz, reference 1000 Hz. Audio
frequencies 3-20 kHz shall be attenuated (at 1 kHz
by 60 log f/3 dB. Above 20 kHz by 50 dB)
FM Hum & Noise level
Less than -40 dB below audio
Audio Distortion
Less than 10 % at 1 kHz for 3 kHz deviation
Spurious & Hamonic
Attenuated at least 43+10 log Po (below rated
radiated carrier Emissions power) per FCC Rules
Part 2 & 80
Antenna Impedance
50 ohms
Transmitter Protection Shall survive open or short circuit of antenna
system without damage (10 min. test)
4.4.2 Receiver
4.4.2 Receiver
4.4.2 Receiver
4.4.2 Receiver
4.4.2 Receiver
Channels
All available US, International, and Canadian VHF
Marine Band
Frequency Range
156.025 to 163.275 MHz in 25 kHz increments
Frequency Stability
+/- 10 PPM (+/- 0.001%) from -20°C to +50°C
Usable Sensitivity
0.35
µ
V for 12 dB (SINAD)
Squelch Sensitivity
0.2
µ
V or better
Threshold
1.0
µ
full squelch
Adjacent CH Rejection
70 dB
Spurious Image Rejection
70 dB
Intermodulation Rejection
70 dB
Audio Output
2 watts or more at 10% or less distortion into 4
ohm load (internal)
Hum & Noise in Audio
Less than -40 dB
Содержание RAY230E
Страница 1: ...RAY230 RAY230E Fixed Mount VHF Radio Owner s Handbook Document number R49006_1 Date May 2001...
Страница 2: ......
Страница 7: ...vii Declaration of Conformity goes here...
Страница 102: ...3 80 Operations...
Страница 135: ...6 13 Parts List and Drawings 6 3 6 3 6 3 6 3 6 3 BLOCK DIAGRAM BLOCK DIAGRAM BLOCK DIAGRAM BLOCK DIAGRAM BLOCK DIAGRAM...
Страница 138: ...6 16 Parts List and Drawings...
Страница 150: ...7 12 Appendix...