Owner's Manual
Table Of Contents
- Introduction
- Getting Started
- Basic Operation
- Turning the Radio On and Off
- Adjusting the Volume
- Adjusting the Squelch
- Selecting Channels
- Transmitting with the Radio
- Bypassing the LO (1 W) Transmission Power Setting
- Scanning and Saving Channels
- Repeating the Last Received Communication
- Monitoring Multiple Channels
- Reprogramming the Second-Priority Channel
- Using 16/9 Mode
- Switching Between 1 W and 25 W Transmitting Modes
- Adjusting the Local/Distant Receiving Sensitivity
- Using the Intercom
- Using the Hailer
- Using the Foghorn
- Listening to NOAA Weather Broadcasts and Enabling Weather Alerts
- Automatic Transmitter Identification System
- Digital Selective Calling
- Advanced Operation
- Appendix
- Index
48 VHF 300 Series Owner’s Manual
Appendix
Transmitter
Frequency Error: +/- 500 Hz
Transmit Power (at 13.6 Vdc):
High Power: 25 W (23–25 W)
Low Power: 1 W (.7–1 W)
Maximum Deviation: 5 kHz
Hum and Noise: -40 dB or less
Duty Cycle: 5% Transmit; 5% Receive; 90% Standby
Modulation Distortion: 10% or less
Adjacent Channel Power: -70 dBc or less
Conducted Spurious Emission: -36 dBm or less
Receiver
Audio Distortion: Less than 10%
Hum and Noise: Less than -40 dB
Squelch Operation: Less than 107 dBm at tight setting
Adjacent Channel Rejection: 70 dB or more
Spurious Response: 70 dB or more
Inter-modulation Response: 70 dB or more
AIS Receiver
Adjacent Channel Rejection: 70 dB or more
Spurious Response: 70 dB or more
Inter-modulation Response: 70 dB or more
Audio
Full-function Handset:
Impedance: 4 Ω
Input Power: 4 W
External Speaker:
Output Power: 4 W (4 Ω/max)
VHF 300 Series and VHF 300 AIS Series Auxiliary Component
Specications
Hailer Output Power: 30 W max
Hailer Horn Impedance: 4 Ω