TransWorld Antennas TW8080 Instruction Manual Download Page 16 | Manualshive

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TransWorld Antennas

TW8080

TM

TW8080

TM

Instruction Manual

15

7 Schematics

This page contains the schematics for the TW8080’s TW-RB-5 loading array.

TW-RB-5

Loading Array

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Summary of Contents for TW8080

Page 1: ...TW8080 The Adventurer Monobander TransWorld Antennas INSTRUCTION MANUAL ...

Page 2: ...mponents of your Antenna 7 6 Getting started 6 1 Tools needed 8 6 2 Antenna Setup 8 6 3 Connections 11 6 4 Tuning 11 7 Schematics 15 8 Contact Information 16 Due to continual product improvements the information in this manual is subject to change any time without notice TransWorld Antennas will be held free from liability any problems arising from the use of this manual or the products described ...

Page 3: ...product provided all part labor or other repair costs are provided by the customer the amount of which is determined by TransWorld Antennas All repairs in warranty and out of warranty should be sent to TransWorld Antennas along with a brief description of the problem and the circumstances environmental conditions and equipment used at the time the problem occurred For warranty product repairs a da...

Page 4: ...sembly starts to drop get away and let it fall Remember the antenna the mast the cable and the metal wires are all excellent conductors of electrical current Even the slightest touch of any of these parts to a power line completes an electrical path through the antenna and the installer 4 If any part of the antenna system should come in contact with a power line DON T TOUCH IT OR TRY TO REMOVE IT ...

Page 5: ...x1 for permanent or temporary installation using the supplied quick break down stand The TW8080 is a center fed vertical dipole antenna with a very low radiation take off angle around 27 degrees above horizontal allowing for very long skips using low power on 80 meters The TW8080 is a ground mounted omni directional antenna requiring no ground radials tower or rotor 3 1 Mechanical Dimensions folde...

Page 6: ... 3 3 VSWR Performance The plot below represents the VSWR performance of the antenna under the test circumstances noted at the bottom of this page The term bandwidth here refers to the range of frequencies over which the antenna exhibits a VSWR of 2 1 or less 2 Test conditions 100 feet of quality RG8 U coax 100W output power antenna mounted approx 24 above ground with no external objects metallic o...

Page 7: ...cture o Top section o Middle section o Bottom section o Permanent mounting assembly Also included is o This manual Save all packaging materials The original shipping materials may serve as a very handy travel box for portable applications Also if the antenna is returned for warranty or money back guarantee claims all original packaging materials will be required for approved shipping ...

Page 8: ...le bottom The top and bottom pieces fold up for quick and easy travel Fold up and assembly of the three main structure pieces is achieved using pre installed clamp knobs See below for a summary of these four components Top Section 32 2 x 6 25 x 3 8 Middle Section 30 13 x 7 41 x 6 75 Bottom Section 33 75 x 6 25 x 3 8 Permanent Mounting Assembly 33 75 x 6 25 x 3 8 ...

Page 9: ...na should not be placed anywhere near power lines as serious injury or death could occur And as always CALL BEFORE YOU DIG to ensure you know where buried gas water sewer power and other service lines are located Danger As with any antenna installation exposure limits should be calculated to ensure safe operation Visit the ARRL website http www arrl org news rfsafety for more information on exposu...

Page 10: ... stake Permanent damage to the fiberglass insulating rod could occur If it is necessary to drive the assembly into the ground first remove the fiberglass insulating rod using a 5 16 Allen wrench and a 7 16 socket Drive the aluminum permanent mounting tube into the ground using a rubber mallet Alternatively a conventional hammer can be used if a wooden board is laid over the aluminum mounting tube ...

Page 11: ...ly tighten all four clamp knobs to ensure that the top arms do not rotate downward over time 4 Install antenna onto the stand As shown at right slide the bottom of the bottom section onto the Permanent Mounting Assembly s insulator rod As with assembly above the slots on the end of the bottom section should fully engage with the mounting assembly s clamp knob stud Firmly tighten the clamp knob ...

Page 12: ...parasitic coupling and cause higher than normal VSWR readings 6 4 Tuning Although your TW8080 was factory pre tuned3 the environment in which your antenna is placed has an effect on tuning Some minor adjustments may be necessary to tune the antenna to the desired center frequency for each band Check the tuning of the antenna using an analyzer or the SWR meter on your transceiver before performing ...

Page 13: ...e VSWR reading on your transceiver will likely show a lower VSWR than a low power antenna analyzer Cables Make sure that the coax used for the tuning process is at least 65 feet long and that the coax is installed at a 45 degree angle as described on page 11 Tuning By spreading both Top Coils and Bottom Coils above the tuned frequency will increase Likewise compressing the coils will decrease the ...

Page 14: ...TransWorld Antennas TW8080 TM TW8080 TM Instruction Manual 13 ...

Page 15: ...llow this checklist to eliminate common tuning problems Is your antenna placed at least 30 feet away from other objects buildings people trees etc The ends of the antenna s arms are very sensitive to coupling with external objects Is your antenna installed such that the arms are at least 24 off the ground The spacing between the antenna s arms and the ground should be between 24 and 36 Is your coa...

Page 16: ...TransWorld Antennas TW8080 TM TW8080 TM Instruction Manual 15 7 Schematics This page contains the schematics for the TW8080 s TW RB 5 loading array TW RB 5 Loading Array ...

Page 17: ...l at support transworldantennas com Use this email address for help with installation setup tuning or operation for product or company information or warranty money back guarantee claims Check back at our website frequently for product updates at www transworldantennas com We can also be reached through our web based contact system on the website ...

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