Download
Share
Print this page
AimTTi TF960 Instruction Manual
  1. Manuals
  2. Brands
  3. AimTTi Manuals
  4. Measuring Instruments
  5. TF960
  6. Instruction manual

AimTTi TF960 Instruction Manual

6ghz universal counter
Hide thumbs

Advertisement

Quick Links

Download this manual
TF960
6GHz Universal Counter
INSTRUCTION MANUAL

Advertisement

loading
Need help?

Need help?

Do you have a question about the TF960 and is the answer not in the manual?

Questions and answers

Related Manuals for AimTTi TF960

Summary of Contents for AimTTi TF960

  • Page 1 TF960 6GHz Universal Counter INSTRUCTION MANUAL...

  • Page 2: Table Of Contents

    Table of Contents Introduction Specification Safety Connections Manual Operation Remote Operation Maintenance This manual is 48581-1440 Issue 2 Note: The latest revisions of this manual and device driver can be downloaded from: http:tti1.co.uk/downloads/manuals-rf.htm...

  • Page 3: Introduction

    Introduction The TF960 is a portable, battery-operated, universal counter with a large 0.5" 10-digit liquid crystal display (LCD). The frequency range is from below 0.001Hz to over 6GHz and measurement functions include frequency, period, ratio, pulse width and count. The instrument uses a high quality temperature compensated internal frequency reference which has a low aging rate and is stable to within ±1ppm over the full temperature range.

  • Page 4: Specification

    Specification Input Specifications Input A Configurable options Input coupling: AC or DC Input impedance: 1MΩ or 50Ω Attenuation: 1:1 or 5:1 Active edge: Rising or falling, or width high or low Low pass filter: Filter In (~50kHz cut-off) or Out Trigger threshold: Variable threshold for both DC and AC coupling Input Impedance:...
  • Page 5 Timebase Measurement Clock: 50MHz. Internal Reference oscillator: 10MHz TCXO with electronic calibration adjustment. Oscillator Temperature Stability: Better than ± 1ppm over rated temperature range. Initial Oscillator Adjustment Error: < ± 0.2ppm at 21ºC. Oscillator Ageing Rate: < ± 1ppm first year. Calibration adjustment range: >...
  • Page 6 Operating Facilities Noise Filter (Input A only) The Filter key controls a low pass filter, with a cut-off frequency of about 50kHz, to assist in obtaining stable readings at low frequencies. Hold Pressing the Hold key will hold the current measured value in the display, with the Hold indicator on, until the Hold key is pressed again.
  • Page 7 Cambridgeshire PE29 7DR England declare that the: TF960 6GHz Universal Counter with USB Interface meets the intent of the EMC Directive 2004/108/EC and the Low Voltage Directive 2006/95/EC. Compliance was demonstrated by conformance to the following specifications which have been listed in the Official Journal of the European Communities.

  • Page 8: Emc

    3V/m, 80% AM at 1kHz, 80MHz – 1GHz: Performance B (A) and 1.4GHz to 2GHz: Performance B (A); 1V/m, 2.0GHz to 2.7GHz: Performance B (A). Note: The TF960 is a sensitive measuring instrument and, if subjected to a sufficiently large RF field, may count its frequency. At lower field strengths a measurement might be disturbed, particularly if the applied signal level is small.

  • Page 9: Safety

    Safety Universal Counter This instrument is Safety Class III according to IEC classification and has been designed to meet the requirements of EN61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use). This instrument has been tested in accordance with EN61010-1 and has been supplied in a safe condition.

  • Page 10: Connections

    Connections Front Panel Connections Input A For frequencies in the range 0.001Hz (DC coupled) to >125MHz. Input impedance selectable between 1MΩ//25pF and 50Ω. Maximum allowable input 1V (1:1 attenuation) or 4V (5:1 attenuation) for 1MΩ//25pF input; 1V above 300kHz for 50Ω input (AC coupled). Maximum input with respect to earth ground is 30V or 30V...

  • Page 11: Manual Operation

    Power-up and power-down operation for all possible combinations of conditions are detailed in the sections that follow. Safety Warning: The TF960 is a safety class III instrument by IEC classification. When the instrument is operated from its internal battery, AC adaptor or USB port of a portable (ungrounded) PC, all accessible parts will be at the same voltage potential as the outer of the N-type and BNC input sockets;...
  • Page 12 AC Adaptor Operation The AC adaptor is connected to the rear panel 1.3mm socket marked DC IN; only the AC adaptor supplied with the instrument should be used. When the AC adaptor is powered the red EXT POWER lamp will be lit, whether the instrument is on or off; if the battery is being charged the yellow CHARGING lamp will also be lit.
  • Page 13 Input A Configuration Options The default configuration options for Input A at power-on are: AC coupling, 1MΩ input impedance, 1:1 attenuation, rising edge polarity and no filter; with the Threshold control set to mid-position a measurement should be possible with the majority of waveforms. Changes to the configurations will, however, be necessary for certain waveforms, e.g.
  • Page 14 This setting should count most signals, but on very small signals some slight adjustment may be needed for maximum sensitivity. The usable adjustment range from this position is approximately ±50mV (1:1 attenuation) or ±200mV (5:1 attenuation). If DC coupling is in use then the feedback mechanism is disconnected and the threshold is directly adjusted by the control over the range of nominally 0 to 2V (1:1 attenuation) or 0 to10V (5:1 attenuation).
  • Page 15 COUNT, RATIO or DUTY respectively, the 2 function printed above the key in blue; the selected function is shown by the appropriate annunciator in the display. FREQUENCY and PERIOD measurements are directly displayed in the appropriate units. COUNT is a simple totalise function. The displayed value can be frozen with the HOLD key; the count continues in the background.
  • Page 16 Switching between FREQUENCY and PERIOD measurement on the same input, or switching between WIDTH, RATIO H:L and DUTY (Input A), will immediately convert the present measurement; otherwise, a change of function (including a change of input) or measurement time will initiate a new measurement. A new measurement may also be started without a change of function or measurement time by using RESET, the 2 function of the HOLD key.
  • Page 17 Timebase and Other Accuracy Considerations The following is intended as a guide to determine the limits of measurement error. Internal Oscillator The instrument has an internal temperature compensated crystal oscillator (TCXO) which has been factory set from a Rubidium reference standard such that it is within ± 0.2ppm (parts per million) after warm-up in an ambient of 21ºC.

  • Page 18: Remote Operation

    Windows applications in exactly the same way as a standard port. If it is anticipated that more than one TF960 might be connected to the same PC it is recommended that the drivers be copied first to a suitable location on the hard disc and then installed from there when the first unit is attached.
  • Page 19 Remote Command Format Serial input to the instrument is buffered in an input queue which is filled, under interrupt, in a manner transparent to all other instrument operations. The instrument will send XOFF when the queue is nearly full; XON will be subsequently be sent when sufficient space becomes available for more data to be received.
  • Page 20 Low frequency mode. Applicable to TF830 only. Command accepted but ignored by TF960, which is automatically in low frequency mode while DC coupling is selected.
  • Page 21 Threshold Level to centre position. Threshold Level to negative pulse position. Threshold Level to positive pulse position. These three commands are only included to maintain compatibility with the TF830 and are used to set the threshold level to one of three ‘preset’ positions available under remote control on that counter. ‘Centre’ is equivalent to the threshold level control at the midway 'AC' position.
  • Page 22 Miscellaneous Commands Returns the instrument identification in the form <name>, <model>, 0, <version><rmt> *IDN? where <name> is the manufacturer’s name, <model> is the type of instrument and <version> is the revision of the firmware installed. Identify Query. Returns the instrument model number only. Resets the instrument to its power-on default values and sets the Threshold Level to the *RST midway ‘AC' position.
  • Page 23 A input AC coupled. A input DC coupled. A input 1MΩ input impedance. A input 50Ω input impedance. A input 1:1 attenuator. A input 5:1 attenuator. Rising edge (A Input only). Falling edge (A Input only). Filter In (A Input only). TF830 Filter Out (A Input only).

  • Page 24: Maintenance

    Maintenance The Manufacturers or their agents overseas will provide a repair service for any unit developing a fault. Where owners wish to undertake their own maintenance work, this should only be done by skilled personnel in conjunction with the Service Information available from the Manufacturers or their agents overseas.
  • Page 25 Thurlby Thandar Instruments Ltd. Glebe Road • Huntingdon • Cambridgeshire • PE29 7DR • England (United Kingdom) Telephone: +44 (0)1480 412451 • Fax: +44 (0)1480 450409 International web site: www.aimt t i.com • UK web site: www.aimt t i.co.uk Email: info@aimt t i.com Aim Instruments and Thurlby Thandar Instruments Book Part No.