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3.5 Dim

The display dimmer button (E) enables the user to dim the display LEDs. The 
display has 3 levels of illumination. Push the button to decrease the illumination.

3.6  Signal Strength

The signal strength indicator LEDs (J) indicate the received signal strength on a 
graduated scale from 0 to 6 (0 indicating weak/no signal and 6 indicating strong signal).

3.7 Warning

The warning LED (I) alerts the user to a failure in the system. If this LED is 
illuminated, first turn off power (A) and check to ensure DB-9 data and power cable 
connections (N & O) are fully secured. Turn on power (A). If warning LED is still 
illuminated, see section 4.0, Maintenance and Troubleshooting procedures.

3.8  Default Settings

Default settings for the DF-101 are:
• Dim – High (brightest) value
• Squelch – Last saved value
• Speaker – OFF

NOTE: The system returns to the default settings when the DF-101 is turned on.

4.0  Installation and Repair Notes

The installation notes provided herein are intended to serve as a guide only. They do 
not serve as material required for the certification of technicians for the installation, 
repair or alteration of the ORCA® MOBI system. 

NOTE: When replacing a DF-100 (see figure 4) with a DF-101, ensure that the 

display and antenna are replaced. The DF-101 display does not function with the 

DF-100 antenna; the DF-101 antenna does not function with the DF-100 display.

Figure 4. DF-101 display and antenna

Summary of Contents for Orca DF-101

Page 1: ...DF 101 User Manual and Installation Guide ORCA DF 101 IS AN IDENTIFICATION AND RECOVERY SYSTEM FOR NAVY FLEETS...

Page 2: ...2 BriarTek Inc Technical Support 703 548 7892 Email support briartek com Web www briartek com...

Page 3: ...s 7 4 0 Installation Notes 7 4 1 Display 8 4 2 Antenna Array 10 5 0 Small Boat Procedures 13 5 1 Set Up 13 5 2 Operation 13 6 0 General Guidance for Bridge Watchstanders and Small Boat Personnel 14 7...

Page 4: ...ion and recovery of an MOB 2 0 DF 101 Parts Overview A Power On Off Red Button I Warning LED B Power On Off LED J Signal Strength Indicator C Squelch Increase Button K Numeric Bearing Indicator D Sque...

Page 5: ...5 Figure 2 DF 101 Display Back View Figure 2 DF 101 Display Back View...

Page 6: ...to clear the DF 101 internal data used to calculate bearing it resets to an un averaged bearing value Clear the display by depressing the Squelch decrease button D and Dim button E simultaneously Whe...

Page 7: ...still illuminated see section 4 0 Maintenance and Troubleshooting procedures 3 8 Default Settings Default settings for the DF 101 are Dim High brightest value Squelch Last saved value Speaker OFF NOTE...

Page 8: ...ttach using M4 fasteners lock washers and threadlock provided with the display 2 Attach power and data cables to the display If the display will be installed on a RHIB or LCPL waterproof DB9 connector...

Page 9: ...ill need access to the inside of the console to perform this 1 Remove forward most bracket securing screw washers 2 and locknut See figure 7 Set aside screw washers and locknut in a safe location 2 Al...

Page 10: ...al application it is recommended that the antenna array is mounted a minimum of 3 away from any adjacent objects i e GPS antenna VHF marine radio antenna stanchion etc and located such that adjacent o...

Page 11: ...ontinue to step 6 Figure 11 Array Base Set Holes 5 If array base and mast set holes are not aligned drill and tap mast to align with new array base as follows i Orient DF North Arrow to bow of vessel...

Page 12: ...et see figure 6 must be used to maintain the water tight integrity of the antenna array 7 Secure antenna array Install a lock washer and flat washer onto a 20 x fastener All material should be 316 CRE...

Page 13: ...tal position raise the antenna and mast to the vertical position and lock in place with the locking pin The MOBI DF antenna array may be stowed in the horizontal position when the DF is not in use LCP...

Page 14: ...sure recovery team turns off the transmitter This will cause the transmitter to send All Clear signal to the receiver indicating the MOB has been recovered 7 0 Direction Finder Maintenance 7 1 Inspect...

Page 15: ...ement is broken but still attached to the antenna housing remove element c Ensure threaded antenna mount is free of debris and dried threadlock using wire brush If necessary to obtain complete removal...

Page 16: ...s to the same bearing An emitter from ownship or another ship is radiating at 121 5 MHz If possible energize another DF to determine source of transmission Damage to the cable jackets or leads Check d...

Page 17: ...cable connection at display and antenna array and ensure secure connection Damage to the data cable jacket or leads and or improperly assembled cable Check data cable for continuity Improperly assemb...

Page 18: ...t or other weather exposed location tether strap with grommet for mounting plastic clip for quick release MOBI Direction Finder ORCADF SW100CU 5840 01 573 2124 Direction finder antenna switch box AB s...

Page 19: ...ink cable tags cable straps screw washers nuts cable ties epoxy repair kit roovers tape DB9 female connector DB9 hood DB9 hood gasket DB9 hood assembly tool cable clam circuit breaker For install on 1...

Page 20: ...20 9 0 DF 101 Specifications...

Page 21: ...21 9 0 DF 101 Specifications...

Page 22: ...f one year from the date the component is purchased For an exchange of the product please contact BriarTek at 703 548 7892 or on the web at www briartek com and a customer service representative will...

Page 23: ...23 Notes...

Page 24: ...San Diego California Alexandria Virginia Indianapolis Indiana Technical Support 703 548 7892 www briartek com...

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