|BK Precision 1856C Счетчик|
|Description:||2.4GHz Frequency Counter|
The 2.4GHz Frequency Counter is a high quality, lightweight counter capable of frequency measurements from 5 Hz to 2.4 GHz. The 2.4 GHz Frequency Counter feature a special 50 12 - terminated input for use in high frequency VHF/UHF/microwave/cellular telephone systems, as well as a standard 1 M O input for frequency measurements to 100 MHz. The counters utilize an eight-digit display which provides up to 10 Hz resolution to 2.4 GHz (Channel B). 1 Hz resolution to 100 MHz, and 0.1 Hz to 10 MHz (Channel A). In period mode, the unit measures the period required (in microseconds) for one cycle, over the range of 5 Hz to 2M MHz. At low frequencies, much greater accuracy can be achieved by period measurement than by frequency measurement. Totalize mode permits counting of individual events. The counting process can be gated, either manually by a front panel switch, or by a gating signal applied to a rear panel jack, for more exact electronic control. Operating mode and one of four decades of resolution are selected by front panel pushbutton switches. Easy-to-interpret readouts are provided by large bright digits, automatic decimal point placement, leading zero blanking, and LED display of proper measurement units. Overrange and GATE function (indication of a measurement in progress) are also shown on front panel indicators. A front panel HOLD switch is provided which "freezed" the display at the present reading, as well as a RESET button which clears the counter display and initiates a new measurement when released. A selectable x 10 attenuator and selectable 100 kHz low- pass filter are incorporated at the standard frequency input jack, for lessened susceptibility to noise and (in low frequency measurements) undesirable high frequency components. The 10 MHz CH.A and 3.90625MHz CH.B time base is generated by a crystal controlled oscillator for good stability with regard to temperature ( ± 10 ppm, 0 °C to 40 ”C ) and Line voltage variation ( + 1 ppm for 10% variation). Other features include universal ac capability, a multiposition carrying handle/tilt stand for portability, and internal RF shielding. The exceptional accuracy, sensitivity, and range of these counters make them extremely valuable instruments for the scientist, engineer, and communications technician.
these manuals are available for the above equipment:
|BK Precision -- 1856C -- Руководство пользователя|
|Manual Type:||Руководство пользователя|
|Size:||1.26 Mbytes (1316054 Bytes)|
|Quality:||Отсканированы документу, все читается.|
|Upload date:||24 Январь 2017|
|Downloads:||48 начиная с 24 Январь 2017|
SECTION I INTRODUCTION SECTION SAFETY SUMMARY . SECTION I CONTROLS AND INDICATORS SECTION IV SPECIFICATION . SECTION V PREPARATION FOR USE SECTION VI OPERATING INSTRUCTIONS
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