Ditch Witch 8500 - Manual (Page 59)

Systems and Equipment - 56
8500 Tracking System Operator’s Manual
850 Series Beacons
CMW
Dual Frequency
Select operating frequency when batteries are inserted or downhole.
Select at Power Up
The orientation of the flat top on the forward isolator
when batteries are installed determines frequency.
• If flat top (shown) is up, beacon will operate at
11.2 kHz.
• If flat top is down, beacon will operate at 1.75
kHz.
Switch Downhole
1. Allow the beacon to enter sleep mode.
2. Wake the beacon within one minute of entering
sleep mode and beacon will switch frequencies.
Beacon Throttle
The beacon continuously monitors and adjusts its output power in order to maintain a constant signal
strength. Beacon housing properties, battery chemistry and battery voltage impact the beacon’s ability to
maintain this output. Beacon throttle is a measure of the remaining time a beacon will be able to maintain
its output level.