QYT M-898 is a VHF maritime radio, which has IP67(1 Meter Depth for 30 Minutes) and float function.
This marine radio can be used in harsh environments such as heavy rain, waves, humidity, salt spray, which also has a certain impact-resistant function.
Maritime radios are also commonly known as "water full frequency radios" or "marine type radios". The maritime radio is essentially a two way radio, there are handheld walkie-talkies and ship-borne radios(similar to vehicle mounted radio). As a professional VHF marine radio designed for maritime applications, it needs to meet some characteristics of maritime applications.
Channel Group Selection
The transceiver is pre-programmed with 59 U.S.A., 59 international and 63 Canadian channels. These channle groups may be specified for the operating area.
Channel Selection
1.Channel 16
Channel 16 is the distress and safety channel. It is used for establishing initial contact with a station and for emergency communication. Channel 16 is monitored during both Dual-watch and Tri-watch. While standing by, you must monitor Channel 16.
2.Channel 9
Each regular channel group has a separate leisure-use call channel(Channel 9; default). The call channel is monitored during Tri-watch.
Caution
Specification
Frequency coverage |
TX: 156.025-157.425 MHz RX: 156.050 -163.275 MHz |
Mode |
FM (16K0G3E) DSC (16K0G2B) |
Frequency stability |
± 10ppm |
Operating temperature range |
-20°C ~ +60°C |
Antenna impedance |
50Ω |
Dimensions (W×D×H) |
153mm×152mm×67mm |
Weight (main unit) |
742g (with microphone) |
Transmit
Output power |
25W / 1W |
Max. frequency deviation |
±5.0 kHz |
Spurious emissions |
≤-70dB (H) ≤-56dB (L) |
Adjacent channel power |
≥70dB |
Audio harmonic distortion |
≤10% |
Current drain |
≤5.5A (H) ≤1.5A (L) |
Input resistance |
2kΩ |
Receive
Sensitivity |
≤0.2uV |
Squelch sensitivity |
≤0.2uV |
Adjacent channel selectivity |
≥70dB |
Spurious response rejection ratio |
≥70dB |
Intermodulation rejection ratio |
≥70dB |
Audio output power |
≥4.5W (10%) |
Audio Distortion |
≤5% |