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A wide range of functions
In addition to frequency measurement the TF830 offers period measurement,
frequency ratio, pulse width measurement and event counting. Pulse width
measurements can be made from rising to falling edge or vice versa.
High resolution reciprocal counting
The TF830 uses the reciprocal frequency counting technique to achieve high
resolution at all frequencies. Reciprocal counting involves synchronised
multiple period measurements followed by computation of the reciprocal
value. This results in high resolution measurements regardless of the
signal frequency and eliminates the +/-1 input cycle errors of a
conventional frequency counter.
The system yields at least 7 digits of resolution per second of
measurement time and can measure low frequencies to a resolution of
0.001mHz.
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Low power operation gives true portability
To ensure maximum flexibility the TF830 can operate from disposable
batteries, rechargeable batteries or AC line. Low power circuitry is
combined with an LCD display to give up to 200 hours of operation from
alkaline batteries.
Remote control and read-back
The TF830 is available with the option of an addressable RS-232 interface.
This can be used as a normal RS-232 interface or as part of a
multi-instrument setup under the TTi ARC system.
All front panel functions can be remotely controlled and measurements can
be read back to the controller. This makes it suitable for use in a wide
variety of automatic measurement systems.
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Frequency, period, pulse width, frequency ratio 
