SteppIR BigIR MK III Instruction Manual Download | Manualshive

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80m Coil Kit for the BigIR

Instruction Manual

(Patented)

Yagi

Dipole

Vertical

Revision 2/22/08

SteppIR BigIR MK III Test Installation W/80m Coil

SteppIR Antennas

2112 -116th Ave NE, Suite 2-5 , Bellevue, WA 98004

Tel: 425-453-1910 Fax: 425-462-4415

Tech Support: 425-891-6134

www.steppir.com

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Summary of Contents for BigIR MK III

Page 1: ...anual Patented Yagi Dipole Vertical Revision 2 22 08 SteppIR BigIR MK III Test Installation W 80m Coil SteppIR Antennas 2112 116th Ave NE Suite 2 5 Bellevue WA 98004 Tel 425 453 1910 Fax 425 462 4415 Tech Support 425 891 6134 www steppir com ...

Page 2: ... at 1500 watts 7 Disassembling the Antenna 7 Bypassing the SO 239 on the Element Control Unit 8 BigIR MK I original model MK II Modification Procedure 8 Mounting the Coil Housing 10 Removing the Small Screw in the CPVC Liner Coupler 10 Reassembling the Antenna 11 Installing the New Firmware Chip retrofit kit only 12 Powering up and Enabling the Coil 15 Wiring Diagram 16 SteppIR Warranty 17 SteppIR...

Page 3: ... Nylon Spacer 4 60 0072 01 10 32x1 1 2 SS Screws 10 60 0061 10 32x7 8 SS Screws 14 60 0019 10 32 Nylok Nuts 1 10 1029 01 Connector Protector 1 20 6020 01 Single Terminal Block 1 Firmware Chip 1 Chip Extractor Hardware Kit for Shipping Coil With BigIR MK III 1 10 1029 01 Connector Protector SteppIR Antennas 80m Loading Coil Kit 3 ...

Page 4: ...ut they can burn you but not shock you There are modifications required on the original BigIR and the BigIR MK II to operate the coil at its full power limit The original BigIR and the BigIR MK II are limited to 500 watts key down when they are set to a frequency below 6 9 MHz The BigIR MK II modifications are listed in these instructions The original BigIR can be modified for the higher power lim...

Page 5: ...n t been a problem The 3 4 wave vertical will also show gains at angles below 27 deg down to 8 deg of be tween 1 db to 3 db when ground quality is less than average and fewer than 25 radials are used The length of the radials also affects this phenomenon Twenty five one wave length radials which is what a 1 8 wave radial is on 80m when used on 10m makes the 3 4 wave and 1 4 wave vertical very clos...

Page 6: ... transmitter to the coax connector on the 80m coil housing Figure 33 Connect the radial system to the ground lug on the 80m coil housing Figure 33 Note Use ONLY the ground lug on the coil housing for ground and radial connec tions Connect NOTHING to the ground lug on the element housing The coax con nector and the ground lug on the ele ment housing are now RF HOT It s a good idea to cover them wit...

Page 7: ...s Up or Dn button to select Yes flashing Press Select button and the elements will retract wait until the stops flashing Turn off the controller and unplug the power cord Disconnect the 25 pin control cable connector from the back of the controller Disconnect the 4 pin control cable connector from the antenna element housing unit Disconnect the coax and radials from the antenna element housing uni...

Page 8: ...LUG ALL WIRES AND COAX LINES FROM THE BIGIR BEFORE DOING ANY MODIFICATIONS BigIR MK I original model MK II Modification Procedure Remove the 10 10x32 screws that hold the lid to the BigIR element housing unit Remove the lid and the housing gasket We have supplied you with new hardware and a new gasket for reassembly at the end of the 80m rewiring upgrade Locate the coax connector from the inside o...

Page 9: ...e for insulation it does not touch the reel or sprocket after the lid has been placed back on the unit Figure 7 Do not remove the old coax connector It must stay in the unit to seal the hole Locate the new housing gasket and stainless steel hardware we have provided to secure the lid back onto the element housing Simply align the holes of the gasket to the holes on the housing and drop the screws ...

Page 10: ...g on the bottom of the element hous ing unit Use plenty of silicone to protect the high voltage RF connection ground lug on the bot tom of the element housing unit Reconnect the coax feed line along with the 1 1 balun if used Removing the Small Screw in the CPVC Element Liner Coupler At the end of the first section of 3 4 CPVC liner there is a coupling held in place with a small screw Figure 13 Re...

Page 11: ...ss element support tube pole Tape the joint as done during your original assembly Mount the antenna back on its mast Reconnect the guy wires if used For retrofit installations only solder the new 4 conductor control cable leads for the coil to the existing 25 pin control cable connector per Drawing 1 Watch for solder bridges Connect the control cable 4 pin plug to the antenna element housing unit ...

Page 12: ...emove the controller top cover Figure 21 Remove four Phillips head screws two on each side Remove the 2 jack screws from the 25 pin D sub connector and 4 jack screws from the 2 9 pin D sub connectors if you have the interface option on your con troller Remove nut and washer from the ground stud Lift the top cover off Unplug the driver board from the display board Figure 21 Driver Board Display Boa...

Page 13: ... pull the chip upwards rocking slightly as necessary until it is free Caution Using any other tool to remove the chip may damage the pins on the chip Align the arrow on the replacement chip to the arrow in the chip socket Figure 27 Display Board Driver Board Firmware chip shown properly aligned but out of its socket Picture 4 Figure 27 Chip Extractor Picture 2 Figure 23 Chip Extractor Picture 3 Fi...

Page 14: ...your thumb Figure 29 Press evenly until the chip is firmly seated on all sides Reinstall the driver board to the display board Figure 21 Reassemble the controller cover Install the new overlay sticker to properly identify the controller buttons Figure 31 Figure 31 Picture 5 Firmware chip in its socket Figure 29 ...

Page 15: ...ssing the corresponding band button This enables the 80m coil Exit the Options Menu by pressing the Mode button and go to the Setup mode and perform a Calibrate Select the Amateur Mode and set the controller to the 20m band Check the SWR to make sure the antenna is functioning properly The SWR center will most likely be off a bit This is because a vertical is very sensitive to its surroundings If ...

Page 16: ...l a c k R e d G r e e n W h i t e Warning A miswired cable can damage the controller 5 6 7 8 S o l d e r D r a i n B l a c k R e d G r e e n W h i t e B l a c k R e d G r e e n W h i t e 4 Conductor with lugs to the Optional 80M coil If Ordered 4 Conductor To the Antenna 2 4 Conductor Cables BigIR 80m Coil to Controller Drawing 1 1 1 3 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 ...

Page 17: ...ally void if the following occurs improper installation unauthorized modifications physical abuse or damage from severe weather beyond the manufacturer s control Manufacturer s responsibility is strictly limited to repair or replacement of defective components The shipping instructions will be issued to the buyer for defective components and shipping charges will be paid for by the buyer to the ma...

Page 18: ...SteppIR Antenna Information Web Sites as of 4 09 07 http steppir com http groups yahoo com group steppir Yagi Dipole Vertical www steppir com ...

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