3.Transmitter
3.1 Introduction
The transmitter provides drill head temperature, clock position, pitch, battery status and locating
signal. The transmitter transmits signals at 4KHz, 19KHz or 30KHz. The transmitter will enter a
“sleep” mode after 15 minutes without rotation. It takes about 10 seconds to “wake up” when the
transmitter is rotated.
3.2 Specifications
Echo 1
Frequency: 4KHz/19KHz/30KHz
Depth range: 30m/40m/40m
Power: 2C-cell batteries or lithium battery
Battery life: 12 hours or 48 hours
Roll: 1-12 clock position with half hour resolution
Pitch: 0.1% resolution
Temperature allowed: Under 85
℃
Dimensions
：
3.4cm
（
diameter
）
*38cm
（
length
）
Weight: 0.7kg
3.3 Digital Information
Pitch: From -106% to +106% with 0.1% resolution
Roll: 1-12 clock position with half hour resolution
Battery: Battery full, 2/3 full, 1/3 full and flash warning
Temperature: When the transmitter is over heating, temperature indication in the receiver’s display
flashes. If temperature reaches over 85
℃
, transmitter may be permanently damaged. Temperature
dot in the front of transmitter will turn black.
