SteppIR SDA 2000 OptimizIR Manuel utilisateur

Table of Contents

Introduction (John Mertel WA7IR) ....................................................................................... 5

Warning ............................................................................................................................... 7

Purpose ............................................................................................................................... 7

Release History ................................................................................................................... 7

Initial Controller Checkout ................................................................................................... 8

Theory ................................................................................................................................. 8

Operate Mode ..................................................................................................................... 9

Power-On Screen ............................................................................................................ 9

Modes of Operation ........................................................................................................... 10

NORM Mode .................................................................................................................. 10

180 Mode ....................................................................................................................... 10

BI 3/4 Mode ................................................................................................................... 10

Main Screen ...................................................................................................................... 10

OptimizIR Buttons in Operate Mode .................................................................................. 12

Setup Mode ....................................................................................................................... 13

Options Menu .................................................................................................................... 14

Remote Driver Option .................................................................................................... 15

Power Off Retract .......................................................................................................... 15

Display Metric ................................................................................................................ 15

Global Correction Factor ................................................................................................ 15

Calibrate Antenna .............................................................................................................. 16

Retract Elements ............................................................................................................... 16

Autotrack Settings ............................................................................................................. 17

Band Limit Settings ........................................................................................................... 18

Transceiver Setup ............................................................................................................. 18

Motors Test ........................................................................................................................ 23

Relays Test ........................................................................................................................ 24

Software Version ............................................................................................................... 24

Antenna Selection ............................................................................................................. 24

Reset User Data ................................................................................................................ 25

Fault Code Menu ............................................................................................................... 25

No Response ................................................................................................................. 25

Antenna Cable Open ..................................................................................................... 25

Driver Chip Error ............................................................................................................ 25

Select Pattern: ............................................................................................................... 27

Adjust Element:.............................................................................................................. 27

Adjust Frequency ........................................................................................................... 27

Select Segment ............................................................................................................. 27

Band Correction ............................................................................................................. 27

Multi-Element Adjust ...................................................................................................... 27

Reset Pattern to Default ................................................................................................ 27

LCD Display Setup ............................................................................................................ 28

LCD Brightness.............................................................................................................. 28

Background Color .......................................................................................................... 28

Foreground Color........................................................................................................... 28

Text Color ...................................................................................................................... 28

Button Text Color ........................................................................................................... 28

Button Panel Color ......................................................................................................... 28

Button Top Color ............................................................................................................ 28

Button Bottom Color ...................................................................................................... 28

Bottom Select Color ....................................................................................................... 28

Custom Color 80 ............................................................................................................ 28

LCD Default ................................................................................................................... 28

Flash File Menu ................................................................................................................. 29

Read Antenna File ......................................................................................................... 29

Master Antenna File ................................................................................................... 29

Saved Antenna File .................................................................................................... 29

Custom Antenna File .................................................................................................. 29

Save User Antenna File ................................................................................................. 29

Updated Master File Available ....................................................................................... 30

Using Controller for More Than One Antenna ................................................................ 30

How to Update Firmware ................................................................................................... 31

Tuning Relay ..................................................................................................................... 32

Remote Driver ................................................................................................................... 32

Advanced Lightning Protection (ALP)................................................................................ 34

Memory Card Operations .................................................................................................. 34

Customer Support ............................................................................................................. 36

Table of Illustrations

Initial Power-On Screen....................................................................................................... 9

Menu Screen ....................................................................................................................... 9

Screen After First-Time Power-On ..................................................................................... 11

OptimizIR Front Panel ....................................................................................................... 12

Setup Main Menu .............................................................................................................. 14

Transceiver Interface to Radio........................................................................................... 19

Transceiver Interface with Y-cable ..................................................................................... 20

Controllers Stacked with Y-cable ....................................................................................... 21

Transceiver Interface to PC only ....................................................................................... 22

Screen Capture - AVR-Osp II ATxmega129A1 Programmer Panel .................................. 31

Tuning Relay Wiring .......................................................................................................... 32

Remote Driver Board Wiring .............................................................................................. 33

View of Memory Card Location ......................................................................................... 34

Front View of OptimizIR ..................................................................................................... 35

Rear View of OptimizIR ..................................................................................................... 35

Introduction (John Mertel WA7IR)

The SDR 2000 OptimizIR controller is the latest in SteppIR’s innovative line of products

that bring enjoyment and high-performance to the amateur radio service. For many, this

controller is an upgrade from either the original controller, or the SDA 100. The OptimizIR

is also being upgraded on a large quantity of new antenna purchases, so this may be the

first time these users have had experience with any SteppIR controller. We have created

this instruction manual to address the needs of both users.

The OptimizIR provides a new way to interact with the SteppIR antenna. We have spent

significant time developing this product, and have had extensive feedback from customers

on the design. We also worked with a team of beta testers to make sure we have a first-

class antenna controller to be used seamlessly with your SteppIR antenna.

Many of the features that are standard in the OptimizIR controller have been around for a

while in our other controllers, available for purchase. The primary difference is that in the

OptimizIR, these options are now included as standard features:

 Transceiver Interface; This enables automatic adjustment of each antenna element of as

the radio tunes. Wherever the radio tunes to, the SteppIR faithfully follows!

 Tuning Relay. The lock-out relay connects via a PTT cable to a RF power amplifier and

prevents transmitting high level RF while the SteppIR antenna is being tuned. When

operating with over 200 watts, it is prudent to not hit your antenna with that RF while it is in

a mismatch.

 Advanced Lightning Protection (ALP). Each driver chip inside the OptimizIR has an

isolation relay ahead of it to protect against lightning and dead shorts. The ALP board also

offers enhanced troubleshooting parameters.

Other features inherent to all SteppIR Yagis, Dipoles and Verticals:

 180-Degree Mode. The 180 mode allows users to electrically “rotate” the antenna 180

degrees opposite forward direction beam heading. So if your antenna is pointing North,

with a click of a button you will be beaming South.

 Bi-Directional Mode. The BI 3/4 functions in a similar manner to 180-degree mode, except

when enabled, the antenna operates as a hybrid Yagi with forward gain occurring in

opposite directions, simultaneously.

 Element Retract Mode. With Element Retract Mode, user can retract all elements on a

SteppIR antenna to home position. Optionally, the controller will then power down

automatically. Retracting elements is an extremely valuable option in cases of inclement

weather like high winds, snow or radial icing. During lightning events, a retracted antenna

greatly reduces conductive area of the antenna platform. NOTE: The user is not required

to retract the antenna, it is there as a feature in case it is needed. There is no problem at

all with leaving the antenna extended, even when not in use.

The SDA 2000 OptimizIR controller hosts a number of new features – color screen, large

display and simplified user interface are what you will first notice when turning on the

controller.

With the SDA 100 controller and the Original Controller, the user has always had the ability

to create, modify and change the antenna. But the process was not simple, and it was

buried inside the setup mode of the antenna software, only to be used by the more

motivated SteppIR owner. With the OptimizIR, we have brought that technology to the

“front” of the interface, and embraced the technology of creating and modifying antennas.

New antennas you will see on the OptimizIR are: maximum forward gain, maximum front

to rear, and wide beamwidth antennas. Visually you can see what type of antenna is

being utilized with the full color bar indicator that is always visible on the controller. Also

new to the OptimizIR – every antenna (including DB32 and MonstIR) is included in the

firmware, so you can operate multiple antennas (one at a time, you will still need to switch

control cable) without having to modify the controller.

In addition, the user can create their own antennas using EZ-NEC or the many other

antenna modeling progams, and then upload those models into the OptimizIR, using the

included mini-SD card. There are some sites that are creating their own antenna models

for SteppIR owners, such as Dan Maguire’s Auto-EZ. You can check out Dan’s software

(available for $79) at www.AC6LA.com. Dan worked very closely with us in the computer

modeling of the OptimizIR antennas.

The OptimizIR is the first of a series of new controllers that will make the SteppIR

antennas “smart”, and give the user the ability to fully employ the advantages of a

remotely tunable antenna!

John Mertel

President/CEO

Warning

The OptimizIR has voltage present on control cable wires, even when POWER button has

been pushed to off. Unplug power supply and disconnect 25-pin D-sub connector before

making any connections or cutting or splicing cable wires. The driver chips inside the

controller will be damaged if the power and control wires short out.

We highly recommend grounding controller chassis to station ground. An 8-32 ground

stud is provided for this purpose. SteppIR recommends a short length of at least ¼” wide

tin-copper braid.

Do not transmit while antenna is adjusting when operating with over 200 watts.

Purpose

The OptimizIR provides the optimal configuration of antenna hardware based on

frequency, antenna model, and desired pattern.

New features include:

1. Ability to change antennas (from vertical to DB42 Yagi) without firmware reload or

hardware changes

2. Remembers last frequency used per band (Manual mode)

3. Frequency adjust knob with selectable step-size (Manual mode)

4. Band buttons for all available bands.(Manual mode)

5. Up to 16 patterns per band, NORM, 180 degrees, BI 3/4, Max-Gain, Max Front-to-

back and others defined by the user.

6. Pattern select knobs and pattern buttons

7. Autotrack mode with frequency step-size adjustment per band

8. Autotrack mode will only change frequency if band changes

9. Enhanced Create/Modify mode allow creation of new patterns

10. Micro-SD card to transfer and save antenna configuration files

11. Can load saved antenna file from SD card

12. Large TFT color display

13. Tuning relay – standard feature

14. Transceiver interface – standard feature

15. ALP driver board – standard feature.

Release History

April 2018: Public Version 1.0

Initial Controller Checkout

Perform following steps in listed order. For this initial controller checkout, the controller

cable can be disconnected.

1. Connect power cord from universal power supply into controller.

2. Plug power cord from universal controller into a 100-240 Vac, 50-60 Hz outlet.

3. Power/Tuning LED should glow amber.

4. Turn on controller by pressing POWER button.

5. Power/Tuning LED should now glow green.

6. NORM LED should glow green.

7. Verify screen shows “SteppIR” logo for about 6 seconds and then shows the startup

screen similar to front page shown in this manual.

Theory

Yagi antennas are basically single frequency devices that work well only over a very

narrow range, typically 0.5% change in frequency. Fixed length yagis compensate by

using a variety of techniques, all of which result in serious degradation of performance,

especially in Front to Rear rejection, and added complexity, size, and weight. Dipoles

have a much broader bandwidth but still cannot cover the entire 80m and 40m bands and

maintain a low SWR (<1.5:1). Our patented solution is to simply adjust the all of the

antenna elements to the optimal length for the desired frequency with none of the

compromises in performance that all fixed antennas require. This is accomplished

remotely using an electronic controller that can even automatically follow the radios'

frequency. SteppIR antennas enjoy optimal performance on all frequencies within their

specified frequency range (varies by model) = and that includes non-ham radio

frequencies as well!

The OptimizIR takes frequency and pattern input, applies those quantities to an antenna

model and commands antenna hardware to set element lengths to those values.

Using the OptimizIR is as simple as making the controller frequency match the radio

frequency using the front panel buttons, and then waiting for the Power/Tuning LED to

stop flashing. This function is automatic when connected to a radio using the Autotrack

feature.

Remember that SWR is not the only factor important for high performance antennas.

Minimum SWR does not always align with best antenna performance. Our antennas have

better than 1.4:1 SWR in normal operating modes on almost all models, with 6M and 30M

being exceptions on some models.

Rain and ice accumulation can influence antenna matching and performance. Either can

cause resonant frequency to shift lower by a small amount. Under most circumstances, it

can be ignored. Unlike conventional antennas, such loading can be corrected for by

simply shifting antenna frequency higher using manual mode. Using Global Correction

in options menu can be used to correct for performance shift.

Operate Mode

Power-On Screen

When controller is first powered on, the SteppIR logo, controller model and copyright

information are displayed for about 6 seconds, and then controller enters operate state.

Initial Power-On Screen

The check fault enunciator will display if no control cable is connected or if controller

detects an error. The controller then displays status screen for Operate mode.

Menu Screen

Modes of Operation

NORM Mode

The NORM mode is used when manually operating controller and primary intended use

for the ham bands. When in NORM mode, tune through bands simply by using frequency

band buttons. Controller will simultaneously adjust length of each element to the chosen

frequency band. The display shows what frequency antenna is tuning to, plus

Power/Tuning LED will blink amber/green. Frequencies outside ham bands can also be

selected.

When controller is in NORM mode, selectable bands are pre-programed to get antenna

close to desired frequency. Most SteppIR antennas work very well over a 100 KHz

frequency range (minimum) except on 80 m. Bandwidth will depend on the antenna

model.

180 Mode

The 180 degree mode is one of the most popular among SteppIR users. The 180 mode

allows the user to electrically “rotate” antenna 180 degrees from the current NORM

direction beam heading. This is done by simply pressing a button. In 2-1/2 seconds,

(shorter on higher frequencies, longer on lower frequencies) transformation is complete.

The existing reflector becomes a director and director becomes a reflector. The antenna

will now have a completely opposite pattern. With a two element Yagi, director becomes a

reflector. In addition to greatly reducing rotator use, many SteppIR users report the 180

function is an excellent tool for short path / long path operation or for picking up elusive

multipliers in the heat of a contest.

BI 3/4 Mode

The BI 3/4 (BI stands for bi-directional) mode operates in a similar manner to 180 except

when enabled, gain occurs in both directions. There is approximately 2 dB less gain than

normal, but now gain occurs in both forward and reverse directions. This feature can be

very handy for those who are involved with net operation or contests where hearing (or

sending) signals from two directions are advantageous.

Main Screen

The display in the normal operate state depends on the antenna state and which antenna

is selected. The screen will contain:

 Currently selected pattern

 Antenna type

 Bar graph displaying relative signal strength.

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