SteppIR DB18 Yagi Manual de usuario

Tech Support: www.steppir.com/support Tel: 425.891.6134 support@steppir.com

Page 1

EA3PW

DB18 Yagi

Assembly Manual

REV 10.2

02/25/2014

2112 116th Ave NE #1-5, Bellevue, WA 98004 Tel: 425.453.1910 email: sales@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.

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Specifications DB18 Yagi

Boom length 19 ft / 5.79 m

Boom outside diameter 1.75 in—2 in / 4.45—5.08 cm

Longest element 39 ft / 11.9 m

Turning radius 21.58 ft / 6.57 m

Weight 96 lb / 43.5 kg

Wind load 10.1 sq ft / 0.93 sq m

Wind rating 100 mph

Adjustable elements 3

Power Rating 3000 watts continuous

Feed points 3

Frequency coverage 6.8 MHz—54 MHz

Control cable 16 conductor shielded, 22AWG

Frequency Gain, dBi Front to rear, dB

40M 6.2 20

30M 5.4 NA

20M 7.4 25

17M 8.3 25

15M 8.5 20

12M 8.8 15

10M 9.0 11

6M 6.2 4

6M w/passive opt. 10.1 30

DB18 Yagi Specifications

DB18 Yagi w / 6m passive option

PREAMBLE

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Page 3

DB18 TABLE OF CONTENTS (page 1 of 4) Page(s)

PREAMBLE 2-19

Antenna specifications 2

OK, NOW WHAT?? Advice from Jim Streible K4DLI 7-8

Parts checklist 9-10

Assembly kits—bill of materials 11-16

Assembly notes (Read before you start assembly 17

Antenna configuration guide 18

A word about stainless steel and potential for galling 19

CHAPTER ONE—BOOM ASSEMBLY 20-23

Section 1.0:

Boom layout 20

Boom bolt detail 21

Section 1.1:

Connecting the EZ-Eyebolt to the boom 22-23

CHAPTER TWO—MOUNTING THE BOOM TO THE MAST PLATE 24-26

Section 2.0:

Mast plate-to-boom overview 24

Preparing the mast plate for the EZ-Eyebolt 25

Section 2.1:

Attach the boom to the mast plate 26

CHAPTER THREE—MAST PLATE AND TRUSS ASSEMBLY 27-39

Section 3.0:

Element housing unit (EHU) placement 27

EHU center-to-center spacing measurements 28

Section 3.1:

EHU wiring overview 29

EHU wiring 30-31

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Page 4

DB18 TABLE OF CONTENTS (page 2 of 4) Page(s)

CHAPTER THREE (continued) - MAST PLATE & TRUSS ASSEMBLY

Section 3.2:

Director EHU & return tube assembly drawing 32

Secure the mounting plate & EHU to the boom—Director element 33

Section 3.3:

Return tube mounting—Director EHU 34

Section 3.4:

Driven element EHU assembly drawing 35

Secure mounting plate & EHU to boom—Driven element 36

Section 3.5:

Reflector EHU & return tube assembly drawing 37

Secure mounting plate & EHU to boom—Reflector element 38

Section 3.6:

Return tube mounting—Reflector EHU 39

CHAPTER FOUR—COAX SWITCH HOUSING 40-43

Section 4.0:

Mounting the coax switch assembly 40

Section 4.1

Coax switch wiring 41

Section 4.2

Sealing & securing the coax switch housing 42

Attach the coax jumpers and feed line 43

CHAPTER FIVE—WIRING THE CONNECTOR JUNCTION BOX 44-53

Section 5.0:

Mount the connector junction box onto boom 41

Section 5.1:

Wiring the connector junction box 45-47

Connecting the control cable from coax switch to junction box 48

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Page 5

DB18 TABLE OF CONTENTS (page 3 of 4) Page(s)

CHAPTER FIVE (continued) - WIRING THE CONNECTOR JUNCTION BOX

Section 5.2:

Connecting 16 wire control cable to 25 pin d-Sub field splice 49-50

Section 5.3:

Wiring test 51-53

CHAPTER SIX—ELEMENT SUPPORT TUBE (EHU) PREPARATION 54-59

Section 6.0

Prepare the telescoping poles for the loop elements (DIR & REF) 54-55

Section 6.1:

Attach the sweep couplers and fiberglass spreaders to the sweep tubes 56-57

Section 6.2:

Attach the fiberglass telescoping poles to the sweeps 58

Section 6.3:

Attach the foam plug housings to non-loop telescoping poles 59

CHAPTER SEVEN—ATTACH THE ELEMENTS TO THE EHU’S 60-62

Section 7.0:

Prepare the CPVC inner-guide tube & diverter cone 60

Section 7.1:

Securing the element support tube (EST) to the EHU 61-62

CHAPTER EIGHT—OPTIONAL 40/30 END ELEMENT TRUSS KIT 63-66

Section 8.0:

Installing the truss support mast 63

Section 8.1:

Attach the truss couplers 64

Section 8.2:

Routing the Dacron truss cord 65-66

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Page 6

DB18 TABLE OF CONTENTS (page 4 of 4) Page(s)

CHAPTER NINE—OPTIONAL 6M PASSIVE ELEMENT KIT 67-68

Section 9.0:

Preparing the 6m passive element 67

Section 9.1:

Mounting the 6m passive element to the boom 68

CHAPTER TEN—INSTALLING THE OPTIONAL BOOM TRUSS 69—72

Section 10.0:

Installing the boom truss support 69

Section 10.1:

Phillystran truss installation 70-72

CHAPTER ELEVEN—SECURE CABLES & MOUNT ANTENNA ON TOWER 73-75

Section 11.0:

Secure the cables to the boom 73

Section 11.1:

Mount the DB18 onto the tower mast 74-75

CHAPTER TWELVE—TROUBLESHOOTING TIPS 76-78

Section 12.0:

Troubleshooting tips 76-77

SteppIR product warranty 78

Contact information 79

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Page 7

OK - - - NOW WHAT?

(Sage advise from Jim Streible, K4DLI—SteppIR Technical Support Guru)

PREAMBLE

You have ordered you SteppIR Antenna and are

waiting for delivery. What do you do in the meantime?

1. Go to the SteppIR web site at www.steppir.com and download the latest manual for your antenna,

and also the Operators Manual for the controller.

2. Read the manuals from cover-to-cover ---TWICE! Don’t just read them –Study them, so you are

familiar the terminology used about the antennas and have a good idea of how the antenna is as-

sembled and where the various parts go.

3. As you go through the manuals make notes of any instructions you may not clearly understand,

then call or email for clarifications. It is better to have it all sorted out before you start assembly.

We don’t mind answering your questions beforehand.

4. Now, wait for notification your antenna is being shipped.

Your antenna has arrived!

What is the first thing to do?

1. If the antennas is to arrive on Wednesday----DO NOT plan an antenna party for Saturday!

2. Even if you plan to install the antenna weeks later, the first thing to do is to unpack the antenna

and do a complete inspection. Make sure nothing is missing or has been damaged in shipment.

3. Do a complete inventory of every part, nut and bolt. Yes it takes time, but it also allows you to

notify SteppIR if anything is missing and allow time to get it to you before you start assembly of

the antenna. There is nothing more frustrating than realizing that something is missing, just

hours before you want to install the antenna.

4. Go back to the SteppIR website and download the latest manual. SteppIR constantly is improv-

ing and adding to the manual, so even though your paper instruction manual is going to have all

the data you need, it makes sense to check for the latest updates online. This is especially true

If you purchased the antenna and a period of time has passed between arrival and install dates.

5. Take the controller and power supply out of their wrappings and connect them. The controller

does not have to be connected to the antenna in order to familiarize yourself with it. In fact, it is

best to get familiar with the controller when it is not connected to the antenna. Turn on the con-

troller and read through the Operators Manual again while operating the controller in all it

modes. Go through the menus so you know what each does and how to navigate through the

various menus and functions.

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Page 8

OK - - - NOW WHAT? (continued)

(Sage advise from Jim Streible, K4DLI—SteppIR Technical Support Guru)

PREAMBLE

Your Antenna Has Arrived!

What is the first thing to do?

(continued)

5. When you have finished working with the controller be sure the display indicates “Elements

Home” and the controller has been turned OFF. When the controller is connected to the anten-

na and the controller is turned back on the next time, it will immediately tune to whatever po-

sition the controller was left in last time you were using it, so you want to be sure that position

is HOME.

6. Once the antenna is completely assembled and ready to mount on the antenna tower, use an

antenna analyzer, if you have one, to test resonance of the antenna.. If you don’t have an an-

alyzer, try to borrow one. It will save you a lot of time and worry. Check the antenna on each

band for some sign of resonance within the frequency range. Leave the antenna on the default

frequency and tune the analyzer to see where the dip occurs. It will be somewhere below the

lower band edge on each band with the antenna 3 or 4 feet above the ground on horsesAlso,

don’t expect to see a 1:1 SWR here, just look for a good indication of resonance.

Once it has been determined this part of the antenna is working correctly do the following: Se-

lect the lowest band and establish the dip condition by tuning the analyzer. Do not touch the

analyzer again. Retract the elements and then reselect the same band. The antenna should

come back the very near the same setting. Do this 2 or 3 times on each band. Also, try going

from the band being tested to any other band and back again and observe that the antenna

comes back to the same resonant point. Now you know the antenna is tuning correctly from

band to band and is consistent.

7. When you are ready to use the antenna, be sure to “enable” the DB18E in the controller menu,

or your antenna will not work properly on 40m and 30m. If you purchased the 6m option, be

sure to enable that as well. When done enabling, save and then turn the controller off, and

back on again.

8. Enjoy the antenna!

Jim Streible—K4DLI

Tech Support: www.steppir.com/support Tel: 425.891.6134 supp[email protected]

Page 9

DB18 PARTS CHECKLIST

QTY Part # Description

1 70-3401-01 20m Driven element EHU, no relay (no lid - mounting plates acts as lid)

2 70-3406-01 DB18 40m Driven w/ normal passive relay (no lid, mounting plate acts as lid)

1 SDA100 Electronic controller

Options for SDA100:

1 01321 Transceiver interface

1 01324 Remote driver board

1 01323 Advanced lightning protection (ALP)

1 01322 Tuning relay

1 Power supply 24v___ (PN 09001) 33v___ (PN 09002)

EHU Control cable wire pack consisting of:

1 Length 10ft 6 inch four conductor cable

1 Length 20 ft 6 inch piece of six conductor cable (for EHU's with relays)

1 Coax seal (used to seal the control cable in the wire trough of EHU)

10 10-1013-02 18 ft telescoping fiberglass pole

1 71-0008 DB18 Instruction manual

1 71-0010 SDA 100 Instruction manual

1 09-0007 Blue silicone wrap (40/30 pole tip prep)

1 09-1025 11/16" Conical grinding stone (40/30 pole tip prep)

2 70-1007-01 Foam plug assembly (20m pole tips)

10 60-1006-22 Quick disconnect boot 1.5" x 1.25" (connect poles to EHU)

30 10-1059-01 Polyolefin heat shrink (waterproof telescoping pole joints)

1 20-6208-01 25 pin dSub connector (only used if no dsub splice purchased)

1 20-6209-01 Backshell for 25 pin dSub connector

4 10-1156-01 Plastic sweeps for 40/30 loop elements

1 10-1610-23 11.5" x 11.5" Mast plate

2 10-1608-01 Return plate for 40/30 loop

4 10-1503-21 Fiberglass sweep supports, black (connects between each sweep coupler)

2 10-1015-11 Return EST, 12" with reinforcing rings on each end

3 70-2030-01 EHU aluminum mounting plate with foam aligning gasket

1 03322 16 conductor control cable _______________ ft

1 70-3001-01 Aluminum coax switch box, with lid (lid has SO239 connectors mounted)

1 70-2037 Connector junction box

It is important that you do an inventory of the items that were shipped to you. Nothing is worse than

discovering a day before a planned installation that there are missing parts! We do our very best to en-

sure that you receive everything needed for construction of your antenna, but better to be safe than

sorry—inventory your parts well in advance of your installation. The items in blue represent options

available for the DB18 Yagi—you will need to check these items off only if you purchased them.

PREAMBLE

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Page 10

ASSEMBLY KITS

(a bill of materials for each kit is shown on the next page)

QTY Part # Description

2 72-0030-61 40/30 loop hardware kit

1 72-0035-02 Boom assembly kit

1 72-0036-02 Director element hardware kit

1 72-0037-02 Reflector element hardware kit

1 72-0038-01 Driven element hardware kit

1 72-0040-01 Mast plate hardware kit

1 72-0042-11 Coax antenna switch hardware kit

1 72-0042-01 Coax antenna switch cable kit

1 72-0041-01 Glue, tape and anti-seize kit (use anti-seize on ALL stainless fasteners!)

ANTENNA OPTIONS

6m Passive Element OPTION

1 70-1001-91 6m Passive element

1 72-1001-71 Hardware kit for 6m option

Voltage suppressor (lighting arrestor) OPTION

1 20-8052-51 16 pin voltage suppressor

40/30 Loop Element Truss Kit OPTION

2 72-0018-31 Loop element truss kit

2 10-1054-02 40/30 truss support arm

Boom Truss OPTION

1 72-0043-01 Boom truss kit

1 10-1618-11 Boom support mast

DB18 PARTS CHECKLIST (continued)

PREAMBLE

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