RF Logic RF257 ເຄື່ອງວັດແທກອັດຕະໂນມັດ
RF Input
Frequency Range: 1.5MHz to 2.0GHz and useful response, with reduced sensitivity, to at least 4GHz.
Impedance: 50 Ω nominal.
Level: 2mV to 1V rms Full specification for noise, accuracy, etc applies over the input range 10mV to 1.0V
Max Input: 0.5W continuous.
Tuning: Automatic tuning selects the largest available signal. Correct operation requires spurious signals to be >10dB below the wanted signal.
Acquisition: Typically < 100ms. Settling time for the AF circuits is additional and is typically 1s for a reading > 75% of the meter range.
L.O Feedout: -60dBm typically.
FM Measurement
FSD Ranges: Five ranges with full-scale deviations of 1kHz, 3kHz, 10kHz,30kHz, and 100kHz.
Modes: Peak Positive, Peak Negative and Mean deviation.
Accuracy: ± 2% of Full scale ± 1% of reading with a 1kHz tone. See audio filter specification for additional error due to AF response. Residual FM is additional.
Residual FM:
<20Hz at 100MHz
<100Hz at 500MHz
<200Hz at 1000MHz
Measured with 3.5kHz AF bandwidth.
Distortion: <1% at 100kHz deviation with a 1kHz tone.
AM Measurement
FSD Ranges: Five ranges with full scale indications of 1%, 3%, 10%, 30%, 100%.
Modes: Peak, Trough, and Mean of peak and trough.
Accuracy: ± 2% of Full scale ± 2% of reading with a 1kHz tone. See audio filter specification for additional error due to AF response.
Residual AM is additional.
Residual: AM <0.5% ( 15kHz bandwidth selected )
Distortion: <1% for 80% AM with a 1kHz tone.
Environmental Temperature
Operating: 0°C to 55°C. Full specification over the range 5°C to 45°C.
Storage: -20°C to 55°C.
Humidity: Max 95% RH at 30°C
Mechanical
Size: H105, W215, D305 mm
Weight: Approx. 1.7kg.
Approx. 2.6kg with battery option.
ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ