Pressure Drop Through Tool:

• Dependent on drill fluid hydraulics, drill collar I.D., and signal orifice I.D. approximately 1 psi / 3 gpm

---

Pulsation Dampener:

• Recommended charge to 40%

---

Transmission Trigger:

• Stop pumps, start pumps
• Stop rotary for accurate survey

---

Telemetry Data Transmission Type:

• Positive pulse
• Typical Pulse duration - 1.0 to 2.0 seconds

---

Retrievability:

• Complete tool via wireline

---

Replaceability:

• Complete tool via wireline

---

Maximum Bit Pressure:

• No limitation

---

Down Link Capability:

• Tool configuration mode, rate and sequence can be changed with tool downhole via cycling pump

---

MTF / GTF Switching Inclination:

• 0 - 45 degrees, normal 5 degrees
• Operator selectable

---

Tool Face Update Period:

• 14 - 52 seconds
• Operator selectable

---

Survey Time:

• Normally 158 seconds
• Dependent upon operating conditions and requirements
• Operator Selectable

---

Survey While Drilling:

• Not recommended, accuracy dependent on BHA movement

---

Directional / Gamma Measurement Location:

• Directional... 15.0 ft. upward from bottom of collar
• Gamma... 9.0 ft. upward from bottom of collar

---

Gamma Detection Type:

• Scintillation

---

Telemetry Data Measurements:

Inclination Azimuth Dip Angle Total Magnetic Field Battery Voltage Temperature

Total Gravity Gravity Tool Face Magnetic Tool Face Gamma Counts Hookload Depth