Hy-Gain VB-64DX Скачать руководство пользователя страница 7

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Figure 6

Balun and Feedline

Connections

NOTE: For operation at power levels above 500
watts, construct a balun using RG-213/u coaxial
cable. The cable cut-off length is 80 1/4". The
sheild length should be 78" with 1 1/8" of center
conductor and dielectric exposed at each end.

Recheck all mechanical connections for tightness
and seal with Coax-Seal® or some similar
substance.

CAUTION:

Protect exposed cable dielectric from
U.V. with black tape or heat

shrink.

Coax-Seal® is a registered trademark of Universal Electronics, Inc.

Содержание VB-64DX

Страница 1: ...h to coaxial cable with the broadest pos sible pass band This antenna now includes stainless steel hardware for all electrical and most mechanical connections and a boom to mast bracket that will fit masts up to 2 1 16 inches in diameter WARNING When installing your system take extreme care to avoid accidental contact with power lines and other overhead obstructions by any ladder or other installa...

Страница 2: ... pieces Check all parts against the parts list in the rear of this manual to ensure no parts are missing Feedline and SWR Model 64DX can be matched to 50 ohm coax using the balun supplied Without the balun the input impedance is 200 ohms The SWR can be 1 1 1 with proper installation and necessary care taken in assembly NOTE If resonance is affected by environmental surroundings shorten the Driven ...

Страница 3: ...n element brackets Item No 1 Place a 1 4 20x3 8 bolt Item No 18 with a square nut in the large brackets Figure 3 Detail B and a 10 24 x 1 2 bolt Item No 13 with a square nut in each center hole Figure 3 Detail A of the small brackets Do Not tighten at this time These will now be called the anchor bolts Figure 2 Boom to Mast Bracket Select the two sections of boom Item Nos 6 7 and insert them into ...

Страница 4: ...et and tighten all bolts securely This includes the center anchor bolts Item Nos 13 18 19 on both sides of the element to boom brackets Place a 6 tubing clamp Item No 12 over the five eighths inch 5 8 tubing Item No 4 Insert the 7 16 x 53 tubing Item No 8 into the five eighths inch 5 8 tubing Refer to the chart Figure 7 for the correct setting and tighten the tubing clamp Select the driven element...

Страница 5: ...mm 55 1397 mm 54 1372 mm Setting 2 50 5 53 MHz 56 3 4 1441 mm 54 1 2 1384 mm 52 7 8 1343 mm 517 8 1318 mm Setting 3 51 54 MHz 55 1 2 1410 mm 53 3 16 1351 mm 51 5 8 1311 mm 50 7 8 1292 mm FREQUENCY SETTING CHART Figure 4 Element Assembly and Antenna Dimensions ...

Страница 6: ... tubing Insert the 7 16 x 52 tubes Item No 32 into the five eighths inch 5 8 tubing Refer to the chart Figure 7 for the correct setting After setting the tubes to the correct lengths tighten the tubing clamps Assemble Directors 1 and 2 in the same manner as the reflector Refer to Figure 4 and VSWR curves Figure 7 for the correct Attach the beta match as shown in Figure 5 Refer to the chart for the...

Страница 7: ...length is 80 1 4 The sheild length should be 78 with 1 1 8 of center conductor and dielectric exposed at each end Recheck all mechanical connections for tightness and seal with Coax Seal or some similar substance CAUTION Protect exposed cable dielectric from U V with black tape or heat shrink Coax Seal is a registered trademark of Universal Electronics Inc ...

Страница 8: ...ceipt or other proof of purchase for antennas that are still under warranty See separate sheet for Telex Warranty All requests inquiries warranty claims and to order replacement parts contact Hy Gain 308 Industrial Park Road Starkville Mississippi 39759 USA Attach your feedline to the driven element and the balun assembly Tighten securely and tape the coax to the boom for strain relief Phone 662 3...

Страница 9: ...13 500158 Bolt Hex Head 10 24 x 1 2 7 14 504069 Bolt Hex Head 10 24 x 1 4 15 565697 Lockwasher Internal 10 5 16 554071 Nut Hex 10 24 5 17 555693 Nut Square 10 24 7 18 500156 Bolt Hex Head 1 4 20 x 3 8 1 19 505266 Bolt Hex Head 1 4 20 x 3 4 44 20 562961 Lockwasher Internal 1 4 44 21 554099 Nut Hex 1 4 20 44 22 551367 Nut Square 1 4 20 1 23 540067 U Bolt 5 16 18 x 2 1 16 x 3 5 8 2 24 564792 Lockwash...

Страница 10: ...en timeters in this way 1 inch 1 2 54 cm 1 foot 1 30 48 cm Example 42 x 2 54 106 7 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 13116 20 638 3 8 9 525 7 8 22 225 7 16 11 112 15 16 23 813 l l2 12 700 1 25 400 ...

Страница 11: ...r warranty provided the product is returned postage prepaid to Hy Gain with a personal check cashiers check or money order for 8 00 covering postage and handling 3 Under no circumstances is Hy Gain liable for consequential damages to person or property by the use of any Hy Gain products 4 Out of warranty Service Hy Gain will repair any out of warranty product provided the unit is shipped prepaid A...

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