ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ
Frequency Characteristics
Frequency Range: 1575.42 MHz
Warm-up time (typical): 30 minutes
Frequency Accuracy: ±100 ppb maximum
Temperature stability: ±100 ppb maximum
Aging (Per year): ±100ppb maximum
Aging (Per day): ±1 ppb maximum
Channels
Number: 1 CH~ 8 CH
Navigation data: GPS C/A @ 1.023 MHz with 50 bps
Modulation: BPSK
Spectral purity
Phase Noise @ 1 KHz o set: < -80 dBc/Hz
Harmonic: < -70 dBc
RF Output Characteristics
High power normal output level: -55 dBm to -90 dBm
Low power normal output level: -90 dBm to -160 dBm
Channel Attenuation range (refer normal output level: -31.5 dB to 0 dB)
Power level ranged from: -55 dBm to -145 dBm in 1 dB step, -145 dBm to -160 dBm in 0.5 dB step.
Amplitude Resolution: 1 dB step
Amplitude Accuracy: < ±1 dB
Output Impedance: 50 Ω
Voltage Standing Wave Ratio
1575.42 MHz: < 1.2
Overload protection on RF output
Maximum reverse RF power: 1 Watt maximum
Maximum DC input: ±25 VDC
Environmental
Operating temperature: 0 to 50 ℃
Relative Humidity: 10% to 90%
Storage temperature: -20 to 70 ℃
Relative Humidity: 5% to 95%
