Detail Produk Radio Rig Icom IC M304 VHF Marine Transceiver
| General | |
|---|---|
| Frequency range
Tx Rx |
156.025–157.425 MHz156.050–163.275 MHz |
| Usable channels | USA, CAN, INT, WX channels |
| Type of emission | 16K0G3E, 16K0G2B |
| Power supply | 13.8V DC ±15% |
| Current drain (at 13.8V DC) Tx Rx |
5.5A (at 25W output) 1.5A (at AF max.) |
| Operating temperature range | –20°C to +60°C;–4°F to +140°F |
| Antenna impedance : | 50Ω (SO-239) |
| Dimensions (W×H×D, projections not included) |
153×67×133mm ;61⁄32×25⁄8×51⁄4 in. |
| Weight (approx.) | 825g; 1.8lb |
| NMEA formats | NMEA version 2.0 or 3.01RMC, GGA, GNS, GLL |
| Transmitter | |
|---|---|
| Output power | 25W or 1W (at 13.8V DC) |
| Modulation system | Variable reactance frequency modulation |
| Max. freq. deviation | ±5 kHz |
| Frequency error | ±10ppm |
| Spurious emissions | Less than –70dBc (at 25W) |
| Adj. channel power | More than 70dB |
| Audio harmonic distortion | Less than 10% (at 60% dev.) |
| Residual modulation | More than 40dB |
| Receiver | |
|---|---|
| Intermediate freq. | 1st 21.7 MHz, 2nd 450 kHz |
| Sensitivity | 0.22μV typical at 12dB SINAD |
| Squelch sensitivity | Less than 0.22μV |
| Adj. Ch. selectivity | More than 70dB |
| Spurious response | More than 70dB |
| Intermodulation | More than 70dB |
| Hum and noise | More than 40dB |
| Audio output power | 4.5W typical at 10% distortion with a 4Ω load |
