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Cat No: 177

UPC No: 783310086574



The TEMPO Communications Precision Tone Generator (Model 177) is portable, battery-operated, and designed for use in fault location and pair identification operations. This unit is very useful when toning in high circuit noise or power influenced areas. The 577.5 Hz tone can be easily detected, while other tones cannot, when using any amplifier, tuned or filtered, to receive the 577.5 Hz tone. The -27 to +27 dBm variable output of the Model 177 allows the operator to adjust the signal level for each job application. The tone generator and test leads fit neatly in a durable, protective woven polyester carrying case with shoulder strap.

  • Generates an easily-detectable tone to trace and identify wires.
  • A red LED is provided to indicate battery condition.
  • Variable output allows technicians to adjust signal strength to suit field conditions and improve accuracy.
  • Works with any common amplifier and exploring coil for aerial fault locating.
  • Supplies a precise 577.5Hz crystal controlled signal frequency.
  • Unit supplies talk battery to power two telephone test sets (buttsets)
  • Each of the three test leads is equipped with traditional bent nose piercing clips with "bed-of-nails" insulation piercing pins.
  • Battery-operated (1 - 6V lantern included).
Attribute Name Attribute Value
Application Used In The Telecommunications Industry For Pair Identification And Fault Locating
Battery (1) 6 V
Battery Life 40 HR
Construction High Impact ABS Plastic In Woven Polyester Case
Dimensions 7.25 IN X 5.5 IN X 4.5 IN
Frequency Rating Transmitter: 577.5 HZ Pulsed At 1 HZ, Crystal Controlled
Includes One 6 V Battery
Output Signal Level 0 To +30 DBM
Output Voltage 0.1 To 80 Vp-p
Type Precision
Weight 3.000 LB With Battery
Item Status Date 05112018
Country of Origin US
UNSPSC 41113740
International Harmonize Code 9030400000
RoHS Indicator U
MSDS Update Flag N