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MODEL QK-710

"QUAD-BAND KIT"

FOR THE

EXPLORER 14

NOTICE

All rights in this publication are reserved. No part of the pub-
lication may be reproduced in any manner whatsoever
without the expressed written permission of Hy-Gain.

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Summary of Contents for QK-710

Page 1: ...710 QUAD BAND KIT FOR THE EXPLORER 14 NOTICE All rights in this publication are reserved No part of the pub lication may be reproduced in any manner whatsoever without the expressed written permission of Hy Gain ...

Page 2: ... CHAPTER 4 Operation CHAPTER 5 CHAPTER 6 Service Information 6 1 Parts LIST OF ILLUSTRATIONS Figure Pag e 1 Capacity Hat Clamp 2 1 2 Antenna Dimensions for Operations of the Explorer 14 at 7 MHz 2 2 3 40 Meter Adjustment Chart 2 3 4 Antenna Dimensions for Operation of the Explorer 14 at 10 1 MHz 2 4 5 10 MHz Beta Match Extension 2 5 6 Driven Element Support Ropes 3 1 7 VSWR Charts 3 2 Attachment ...

Page 3: ...pically 100 kHz on 30 meters and 175 kHz on 40 meters Stainless steel hardware and clamps are sup plied for all electrical and most mechanical connections A driven element support rope is supplied to help support the additional weight of the driven element with either 30 meters or 40 meters added The Ham IV or T2 X Rotators are recommended to be used with the modified Explorer 14 antenna NOTE Thro...

Page 4: ... Operation Select the capacity hat clamps Item 68 and loosely assemble a set of four 4 clamps onto each of the 1 x 6 tubes as shown in Figure 1 Center these clamps on the tubes before tightening Install a 10 tubing clamp at each end of the 1 x 6 tube and insert the 7 16 x 15 tubes into the capacity hat clamps At this time tighten all bolts used on the capacity hat clamp Place 7 16 endcaps on the e...

Page 5: ...the ground Also adjust sections D 3 and D 4 to the dimensions shown in Figure 2 The beta match will not be used in this con figuration so the beta match assembly from the Explorer 14 may be completely removed This includes Items 21 and 37 two beta shorting clamp assembly beta support clamp and insulator assembly and all other hardware used to connect these assemblies together See Figure 8 of the E...

Page 6: ...heights above 80 feet use Line 2 Antenna heights less than 35 feet are not recommended Figure 3 Assembly of the QK 710 for 10 MHz Operation Remove the DE 3 7 16 x 37 and the 1 2 compression clamps older system or the 6 tubing clamp new system from the Explorer 14 driven element Adjust the DE 2 to 37 1 2 and slide the 15 meter trap all the way into the DE 2 Retighten these two clamps securely on bo...

Page 7: ... these parts as shown in Figure 4 Use the 1 1 2 aluminum extension straps 10 24 x 1 bolts and 10 24 hex nuts to extend the sleeve spacer insulators to 7 inches Figure 4 Antenna Dimensions for Operation of the Explorer 14 at 10 1 MHz ...

Page 8: ...orting clamp assembly from the Explorer 14 and reassemble it on the end of the extension as shown Replace boom to beta strap Item 33 with new boom to beta strap Item 80 Attach the 5 1 2 inch pigtail wires Item 83 between the ends of the existing beta match and the ends of the extension as shown Tighten all hardware securely NOTE THE ENDS OF BOTH SETS OF BETA TUBES AT TI HS LOCATION SHOULD BE ON TH...

Page 9: ...check the rating of your tower and rotor against the new wind loading specifications of your modified Explorer 14 Due to the element tip loading produced by the large 20 meter traps we recommend that you add vertical support ropes to the central driven element The ropes should be tied to the outer ends of the 15 meter traps and tied to the support bracket attached to the mast The support bracket s...

Page 10: ...larized Similar curves may be expected for this antenna mounted between 30 and 100 feet above the ground DO NOT TRY TO TUNE THIS ANTENNA FOR LOW VSWR AT GROUND LEVEL NOTE The VSWR on 20 meters may be slightly higher than that of the Explorer 14 alone This is normal See the Explorer 14 manual for more installation hints Figure 7 VSWR Curves ...

Page 11: ...occur DO NOT use any coating on trap assemblies Heavy oxidation of aluminum may occur if the antenna is installed within 5 miles of salt Ivater Maintenance The Explorer 14 antenna is designed to be relatively maintenance free All hardware except for seven 7 long bolts used in the boom tomast bracket are made of passivated stainless steel The seven long bolts are plated with a thick layer of cadmiu...

Page 12: ... not dependent on weather or o Loose connection on feed system matching system or power level or direction of beam or band selection transmission line High VSWR after rain showers or with high humidity o Trap s installed with drain holes up instead of down o Water inside of balun or coax cable o Tubing installed with slots up instead of down High VSWR with high power low VSWR with low power o Balu...

Page 13: ...y research your problem by going through the Troubleshooting Guides in Chapter 5 before you contact the Customer Service Department You should also record your VSWR across all four bands before calling You should retain your sales receipt or other proof of purchase for antennas that are still under warranty See separate sheet for Telex warranty All requests inquiries or warranty claims should be m...

Page 14: ...ly 5 1 2 2 103 351700 Rope Thimble 5 32 2 878305 Parts Pack QK 710 Insulators 1 84 450401 Caplug 1 black 2 85 455644 Caplug 7 16 black 10 86 465595 Insulator beta support bottom 2 87 465600 Insulator beta support top 2 878306 Parts Pack QK 710 stainless steel hardware 1 88 500152 Bolt 3 8 16 x 2 hex head 2 89 500154 Bolt tap 5 16 18 x 3 1 2 hex head 1 90 500157 Bolt 10 24 x 2 hex head 4 91 500160 ...

Page 15: ...30 48 cm and foot 1 can be converted to centimeters in this way Example U S A FRACTION AND METRIC EQUIVALENTS FOR ONE INCH Fractional Fractional Inch Millimeters Inch Millimeters 1 16 1 588 9 16 14 288 1 8 3 175 5 8 15 875 3 16 4 700 11 16 17 463 1 4 6 350 3 4 19 050 5 16 7 937 13 16 20 638 3 8 9 525 7 8 22 225 7 16 11 112 15 16 23 813 1 2 12 700 1 25 400 ...

Page 16: ...VSWR RECORD PRINTED IN U S A Copyright 1990 by Hy Gain All rights reserved 30 MAR 1990 Attachment 1 ...

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