SteppIR CrankIR Guida all'installazione

CrankIR Portable Antenna System

Assembly & Instruction Manual

SteppIR Antennas 2112 116th Ave NE #1-5, Bellevue, WA 98004 Tel: 425.453.1910 www.steppir.com

This assembly manual is intended to be

printed in full COLOR. If the manual is

printed in black and white, many im-

portant details could be lost.

Rev 2.1b

20161121

SteppIR Antennas 2112 116th Ave NE #1-5, Bellevue, WA 98004 Tel: 425.453.1910 www.steppir.com

Page 2

TABLE OF CONTENTS

CrankIR Introducon 6

2. Operaon Controls

Geng Started 16

Radial Set Up 25

5. Tuning the CrankIR 32

6. Pole Extension Kit 34

Taking Down the Antenna 38

8. Troubleshoong 40

9. Operaon Tips 44

10. Specicaons 46

SteppIR Antennas 2112 116th Ave NE #1-5, Bellevue, WA 98004 Tel: 425.453.1910 www.steppir.com

Page 3

THIS ANTENNA IS AN ELECTRICAL CONDUCTOR. CONTACT WITH POWER LINES

CAN RESULT IN DEATH, OR SERIOUS INJURY. DO NOT INSTALL THIS ANTENNA

WHERE THERE IS ANY POSSIBILITY OF CONTACT WITH HIGH VOLTAGE OR ARC-

OVER FROM POWER CABLES OR SERVICE DROPS TO BUILDINGS. THE ANTENNA

SUPPORT MAST OR RADIAL(S) MUST NOT BE CLOSE TO ANY POWER LINES

DURING INSTALLATION, REMOVAL, OR IN THE EVENT PART OF THE SYSTEM

SHOULD ACCIDENTALLY FALL. EVEN BEING CLOSE TO POWER CABLES HIGH

VOLTAGE AURALS CAN CAUSE LETHAL VOLTAGES IN THE ANTENNA.

FOLLOW THE GUIDELINES FOR ANTENNA INSTALLATIONS RECOMMENDED BY THE

U.S. CONSUMER PRODUCT SAFETY COMMISSION.

EXTREME CARE MUST BE USED FOR YOUR SAFETY. YOU MUST INSURE THAT

WHILE THE CRANKIR IS IN OPERATION NEITHER PEOPLE NOR PETS CAN COME IN

CONTACT WITH ANY PORTION OF THE ANTENNA INCLUDING THE RADIALS.

DEADLY VOLTAGES AND CURRENTS MAY EXIST. ALSO, SINCE THE EFFECTS OF

EXPOSURE TO RF ARE NOT FULLY UNDERSTOOD, LONG TERM EXPOSURE TO

INTENSE RF FIELDS IS NOT RECOMMENDED.

RADIALS, BOTH ELEVATED AND GROUND MOUNTED SHOULD BE MARKED WITH

WARNING TAPE AT APPROPRIATE INTERVALS TO VISUALLY ALERT PEOPLE TO THEIR

PRESENCE.

ALL DEPLOYMENTS OF THE CRANKIR SHOULD BE GUYED TO AVOID THE RISK OF

SERIOUS INJURY FROM THE ANTENNA FALLING.

WARNINGS

SteppIR Antennas 2112 116th Ave NE #1-5, Bellevue, WA 98004 Tel: 425.453.1910 www.steppir.com

Page 4

STANDARD PIECES AND OPTIONS

STANDARD ITEMS

CrankIR 40m-2m Main Box:

Standard unit includes 55’ of radiator wire and 55’ of non-conducve leader.

16 foot Telescopic Pole:

10 secon pole collapses to a mere 24” for easy transport and storage.

Pole Tip Tensioner:

2x 23” Fiberglass arms with pulleys, aached to pivot block. Provides

constant tension to Vercal Radiator Wire/Cord.

Radial Lug:

For easy aachment to exisng radial eld or user-supplied cut-length radial.

OPTIONS

Tunable Radial Unit:

Provides simple “Turn the Crank Tuning” of the radial ulizing the same

tuning system as the CrankIR Antenna. The antenna can be tuned to any

band by simply seng the radial and vercal radiator to the matching

color-coded band marks. No addional tuning is normally required.

40m-2m version includes 55’ radiator wire and 80’ non-conducve leader.

80m-2m version includes 100’ radiator wire and 125’ non-conducve leader.

80m Kit:

A must for serious 80m operaons. Includes 80m-2m version Tunable Radial

Unit (above) and Pole Extension Kit (below). Connuous coverage from 80m-

2m.

SteppIR Antennas 2112 116th Ave NE #1-5, Bellevue, WA 98004 Tel: 425.453.1910 www.steppir.com

Page 5

OPTIONS (connued)

Pole Extension Kit:

Strongly recommended for 80m, improves 40m and 30m as well. Extends 16’

pole to 22’. Couplers and 3 pole secons t into 24” travel bag.

6  Tripod:

9-6in Tripod:

(recommended for 80m operaons)

SteppIR Antennas 2112 116th Ave NE #1-5, Bellevue, WA 98004 Tel: 425.453.1910 www.steppir.com

Page 6

The CrankIR is a lightweight, high

performance, extremely portable antenna

that is suitable for use both in the eld or

at home when stealth operaon is desired.

The enre antenna collapses down to less

than 24” and can be assembled and on the

air in less than ten minutes.

The basic CrankIR model covers from 40m

– 2m and has a power rang of 1500 was.

The vercal radiator is supported by the

included 16’ berglass pole consisng of

ten secons, which when collapsed is 23”

long. For 80m capability we oer the 80m

Opon Kit (PN 06415) which includes

berglass extension tubes and a longer

wire on the oponal Radial Unit (PN

06401), see previous page. The antenna

uses highly exible 18 gauge copper wire

for the radiang elements resulng in

lightweight and high eciency. This

antenna is quickly and easily manually

tuned by adjusng the hand cranked wire

reels.

The element wire is marked with color-

coded band indicators (see pg. 13), to

select a band simply run the wire in or out

unl the appropriate marker appears just

above the Wire Guide Block.

High eciency is achieved by design; there

are no coils, only capacity hat type

resonang is used. There are no matching

networks; matching is accomplished by

very low loss o-center feeding. When the

vercal radiator is shorter than 1/4

wavelength (WL) the impedance drops

signicantly which then requires some way

to match the lower antenna impedance to

the 50 ohm transmier. On the CrankIR,

matching is done by o-center feeding the

antenna. This is accomplished by

extending the radial much longer than the

normal 1/4 WL. By simply moving the

feedpoint away from the center, a higher

impedance is obtained with very lile loss.

The farther you move from the center the

higher the impedance is. This method

does result in increased imbalance so we

provide a specially designed balun to

insure the RF does not go down the

feedline. Our patented loop element

design resonates the antenna without the

use of lossy coils. This results in a higher

radiaon resistance (by a factor of up to

2:1) than the same amount of coil loading;

this, in turn, increases antenna eciency.

1. CRANKIR INTRODUCTION

SteppIR Antennas 2112 116th Ave NE #1-5, Bellevue, WA 98004 Tel: 425.453.1910 www.steppir.com

Page 7

Bob Fuller, W7KWS on the air with a CrankIR prototype. QTH Kauai, HI.

SteppIR Antennas 2112 116th Ave NE #1-5, Bellevue, WA 98004 Tel: 425.453.1910 www.steppir.com

Page 8

2. OPERATION CONTROLS

SteppIR Antennas 2112 116th Ave NE #1-5, Bellevue, WA 98004 Tel: 425.453.1910 www.steppir.com

Page 9

2. OPERATING CONTROLS

REEL CRANK HANDLE

Aluminum crank handle used to reel the

wire in and out.

CORD REEL LOCK/DRAG

Drag adjustment that allows the cord reel

to slip or lock together with the wire reel.

The amount of drag is easily set by

adjusng how ght the hand knob is set.

The reels can be locked together without

undue torque on this knob. This allows

adjustment of the tension on the Wire/

Cord . To remove the cord reel unscrew

and remove this knob and pull the reel o,

being careful not to lose the two plasc

washers or cork clutch disc underneath.

RETURN SUPPORT ROD/CORD

GUIDE BLOCK

The Return Support Rod mounts on this

block by inserng and twisng the rod

clockwise unl the stop is reached. It also

helps prevent the cord from coming o of

the reel and tangling.

POLE CLAMPING WINGNUTS

Eight hand operated wingnuts that clamp

the antenna unit to the tripod or other

mounng pole, four knobs clamp the

mount pole and four clamp the vercal

berglass pole.

CLAMP SADDLES

These two saddles form the outer half of

the clamps that hold the vercal

telescoping pole and the tripod to the

antenna unit. The side of the antenna box

is formed into a V to funcon as the mang

saddle. The clamps can be ipped over to

allow mounng to a small diameter pole

WIRE GUIDE BLOCK

Guides the wire as it is adjusted to prevent

the wire from coming o the reel and

tangling.

WIRE/CORD REEL ASSEMBLY

Two reels mounted on the same

sha to allow wire and cord to be reeled

either in or out to facilitate tuning the

antenna. The Wire/Cord is wound onto

the reels so when one is winding out the

other is winding in, allowing adjustment of

the wire length over a wide range.

SteppIR Antennas 2112 116th Ave NE #1-5, Bellevue, WA 98004 Tel: 425.453.1910 www.steppir.com

Page 10

10 11

2. OPERATION CONTROLS (connued)

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