JRC JLR-7700MKII - GPS Receiving Specifications; Beacon Receiving and Environmental Specs

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JLR-7700 MK2 GPS Navigator
(3) Beacon receiving
Receiving frequency : 283.5KHz to 325KHz
Frequency step : 500Hz
Selection of beacon station : Automatic or manual
Demoduration : Minimum shift keying (MSK)
RF bit rate : 50/100/200bps
(4) Environmental
Operating temperature range : DGPS Receiver -25 to 55℃
Navigator -15 to 55℃
Waterproof : DGPS Receiver USCG CFR46 standard
Navigator JIS IPX4 standard
EMC : IEC60945 standard and CE mark