OM POWER OM2000+ Manuel utilisateur

Exhibit 11 Page 1 of 12

Exhibit 11: Tuning Procedure and

Parts List

External Radio Frequency

Power Amplifier OM2000+

Model 2000+

Array Solutions

2611 North Beltline Rd

Suite 109

Sunnyvale, Texas 75182

USA

Tel: 214 954 7140

fax: 214 954 7142

E-mail: info@arraysolutions.com

Exhibit 11 Page 2 of 12

1.2. Tuning of the Power Amplifier

The OM2000+ power amplifier is operated in class AB. Thus it’s possible to obtain a maximum output

power at excellent linearity. For this purpose the amplifier has to be tuned carefully.

CAUTION

The operation of a mistuned PA will cause malfunctions, the increase of grid current and problems

with TVI/BCI.

CAUTION

If the input power is higher than 10W and the power amplifier is NOT correctly tuned, the safety

devices will switch it to STBY. After switching the amplifier to STBY, you need to switch it back to

the OPER mode by pressing RESET button shortly.

A tuning table is delivered with the power amplifier. For coarse tuning select a band with BAND switch

and choose the setting of “TUNE” and “LOAD” capacitors according to the table.

Band (MHz)

Tune

Load

Input PWR (W)

Output PWR (W)

1.845

1500

3.630

1500

7.050

1500

10.125

1500

14.175

1500

18.150

1500

21.230

1500

24.940

1500

28.450

1500

50.200

1500

NOTE

Delivered tuning table was made for 50 Ohm loading of PA (dummy load). Each amplifier should have

different values depending on used frequency and used type of antenna. Make your own table valid

for your real conditions.

There are two ways how to do fine tuning. The first method uses a gradual increase in the input power

when tuning the PA (as most operators accustomed). In every case we recommend adjust the display

for both of methods so it shows two parameters important for fine tuning - TUNE and Is graph (> l <).

Exhibit 11 Page 3 of 12

Press OPER to enter operation mode. Apply low input power and press PTT. Be sure you selected right

BAND, TUNE and LOAD knob positions. If you made some mistake, fault message appears:

Safety circuit stopped transmitting, fault LED

is ON (Fault code 4 is saving to the memory).

Release PTT, set proper positions of BAND,

TUNE and LOAD according to the table and

press PTT again.

Another mistake can occur, if you have antenna connected to the wrong output. In such a case „SWR

is too high“ error message appears. Change antenna output using S4 button.

This is not an optimal result, TUNE indicator

must go between both arrows. Use TUNE

knob to get maximum output power and

LOAD knob to get indicator between

arrows.

Another example of not optimal result, TUNE

indicator must go between both arrows. Use

TUNE knob to get maximum output power

and LOAD knob to get indicator between

arrows (in arrows direction).

This is a good result of tuning.

Now increase input power slowly and watch the display.

Type of supported TCVR and working

frequency are visible on the display.

AUTO LED is ON.

Type of supported TCVR and working

frequency are visible on the display.

AUTO LED is ON.

Type of supported TCVR and working

frequency are visible on the display.

AUTO LED is ON.

Type of supported TCVR and working

frequency are visible on the display.

AUTO LED is ON.

Exhibit 11 Page 4 of 12

Two of important information is visible –

screen current increased, but still is within

the allowed limits. Turn LOAD knob slightly

in arrows direction to get TUNE indicator

between arrows.

Display indicates correct tuning of the Power

amplifier.

Remember

Always use TUNE knob to get maximum output power. Use LOAD knob to get TUNE indicator on the

display to the middle position between both arrows. Simultaneously check if Is graph indicator stays

within the boundaries. Repeat both steps more times.

Proper operation mode of FU-728F requires the plate voltage to be close to 3 kV. If anode voltage

without RF power is much lower, watch the heating voltage, too. Normally, heating voltage must be in

boundaries from 8.5 to 9 V without RF signal (DSP3). Heating voltage level is a reliable indicator of

correct AC selector adjustment. If you see heating voltage lower than 8.5V without RF signal, change

primary AC voltage selector one step down (if possible). Conversely, if the voltage is higher than 9V,

try to move AC selector one step up (for example from 220 to 230 VAC). Check heating voltage under

full load (full output power), also. If the heating voltage without RF signal is OK but under full load

drops more than 1.5 V, this relates to the „soft“ AC network and is solvable only by „changing“ the AC

network...

Without RF power the plate voltage is OK.

Without RF power the plate voltage is 2.85 kV.

Check the heating voltage, too. If it is below

8.5 V, this indicates the need to change AC

selector position one step down (for example

from 230 to 220 VAC).

Type of supported TCVR and working

frequency are visible on the display.

AUTO LED is ON.

Type of supported TCVR and working

frequency are visible on the display.

AUTO LED is ON.

Type of supported TCVR and working

frequency are visible on the display.

AUTO LED is ON.

Type of supported TCVR and working

frequency are visible on the display.

AUTO LED is ON.

Exhibit 11 Page 5 of 12

To start the second method of fine tuning, press S2 (TUNE) button in OPER mode.

PA is in the operation mode. After TUNE

button (S2) was pressed, it changes its

function. Now STOP is blinking.

Do not press STOP button yet!

Apply input power according tune table (or lower) for selected band and press PTT. Use TUNE knob to

get maximum output power. Use LOAD knob to get Is graph indicator within the boundaries.

Display shows properly tuned PA.

TUNE indicator is in the middle, Screen

current is higher, but still inside the limits.

After proper fine tuning release PTT and press STOP button. PA is now prepared for operation.

View on the properly tuned PA. Analog

wattmeter shows forwarded and reflected

power.

After this procedure the amplifier is tuned correctly and ready to give 1500 W output power in all

operation modes. At optimal tuning and full output power a positive max. 50mA current goes through

the second grid.

CAUTION

If the amplifier demonstrate any malfunctions during tuning or it does not behave in accordance

witch the description, interrupt the tuning procedure immediately and check the amplifier! Be sure

not to do any mistakes in choosing bands or TUNE/LOAD values! Be sure that VSWR is not higher

than 2:1 and input power is LOW!

After excluding possible human mistakes you will be able to work for long time with this amplifier!

Type of supported TCVR and working

frequency are visible on the display.

AUTO LED is ON.

Type of supported TCVR and working

frequency are visible on the display.

AUTO LED is ON.

Type of supported TCVR and working

frequency are visible on the display.

AUTO LED is ON.

Exhibit 11 Page 6 of 12

OM2000+ PARTS LIST

Item No.

Description

Qty.

Analog meter FWD / REF

70x70mm

Band switch 8x3

8x3 position

Blower

24V 5,28W

PE92252V1-000U

Blower ebm-papst

230V 30W

G2E085-AA01-01

Bridge

KBU8J

8A 600V

Bridge

B380C

0,8A 900V

Bridge

DB157S

1,5A 1000V

Capacitor ceramic

4n7 6kV

15,24mm

Cap ceramic disc

2n2 10kV

Φ 40mm

Cap ceramic disc

330 3,5kV

Φ 30mm

Cap ceramic disc

1n 12kV

Φ 30mm

Cap ceramic disc

470 16kV

Φ 25mm

Capacitor ceramic

1µF 50V

1206

Capacitor ceramic

100pF 50V

1206

Capacitor ceramic

100n 50V

0805

Capacitor ceramic

100n 50V

1206

Capacitor ceramic

100n 500V

5mm

Capacitor ceramic

100nF/1kV

10mm

Capacitor ceramic

10n 50V

1206

Capacitor ceramic

10n / 1kV

5mm

Capacitor ceramic

10nF 500V

5mm

Capacitor ceramic

10nF / 1kV

10mm

Capacitor ceramic

10pF 500V

1210

Capacitor ceramic

15pF 50V

1206

Capacitor ceramic

1n /50V

0805

Capacitor ceramic

1n 500V

5mm

Capacitor ceramic

1nF 50V

1206

Exhibit 11 Page 7 of 12

Capacitor ceramic

22 50V

1206

Capacitor ceramic

2n2 500V

7,62mm

Capacitor ceramic

2nF 500V

7,62mm

Capacitor ceramic

3,3pF 500V

5mm

Capacitor ceramic

3n3 500v

5mm

Capacitor ceramic

4.7pF 500V

1210

Capacitor ceramic

47n 250V

15,24mm

Capacitor ceramic

47pF 500V

1210

Capacitor ceramic

59pF 500V

1210

Capacitor ceramic

76pF 500V

1210

Capacitor electrolytic

330µF 450V

10,16 SNAP-IN

Capacitor electrolytic

47µF 250V

7,62_ELKO

Capacitor electrolytic

47µF 450V

7,62_ELKO

Capacitor electrolytic

1000µF / 35V

1411_ELKO

Capacitor electrolytic

10µF / 16V

SMD 1210

Capacitor electrolytic

22µF / 16V

1206

Capacitor electrolytic

10M /16V

1206

Capacitor electrolytic

330µF / 6V

SMD_R7X7_ELKO

Capacitor electrolytic

47µF/10V

1206

Coil

Stopper coil

Coil

anode choke on PTFE

Coil

choke 100uH 2,5A

Coil

Air coil

Coil

L coil on ceramics

Coil

choke coil on PTFE

Connector

PV02-5,08-H-P

5,08

Connector

PV03-5,08-H-P

5,08

Connector

PV06-5,08-V-P

5,08

Connector

PV04-5,08-H-P

5,08

Connector

LPH10

10-S

Connector

LPH06

6-S

Exhibit 11 Page 8 of 12

Connector

LPH16S

16-S

Connector

FASTIN

1X01

Connector

FASTON

MKDSN1,5/2-5,08

Connector

LPH20

LPH20SMD

Connector

LPH20RA

Connector

LPH16RA

Connector

LPH10RA

Connector

LPH06RA

Connector

WWS 10G

1X06

Connector

NSL 25-2W

PSS254/2W

Connector

NSL 25-4W

PSS254/4W

Connector

NSL 25-4 G

PSS254/2G

Connector

NSL 25-2G

PSS254/2G

Connector

NSL 25-3G

PSS254/2G

Connector cinch

CHINCH CC133B

Connector cinch

CHINCH CC133B

Diode

1N5408

DO27

Diode

1N4148

DO35

Diode Schottky

TMMBAT46

MINIMELF_DIODE

Diode Schottky

BAT41

MINIMELF

Diode Si

1N4007 1A 1000V

DO41

Diode SMD

TS4148

1206-D

Diode SMD

SM4007

MELF

Diode SMD

LL4148

MINIMELF_DIODE

Diode SMD

BAR43C

SOT23/3

Diode SMD

SKL34

MINIMELF_DIODE

Diode Zenner

18v

DO41

Diode Zenner

1N5349 12V 5W

DO201AD

Diode Zenner

1N5363 30V 5W

DO41

Diode Zenner

1N5384 160V 5W

DO201AD

Diode Zenner

BZV85C 20V

DO41

Exhibit 11 Page 9 of 12

Diode Zenner

BZV85C 30V

DO41

Diode Zenner

BZV85C 4V7

DO41

Diode Zenner

BZV85C 5V1

MINIMELF_DIODE

Diode Zenner

BZV85C 6V8

MINIMELF_DIODE

Diode Zenner

SK54

SMB

Diode Zenner

ZD 5V1

SOD80

Diode Zenner

ZD 8V

SOD80

EMI filter

BLM31

1206

EMI filter

BLM21PG221

0805

EMI filter

BLM31PG221

1206

100

Filter EPCOS

250V20A

B84771A0020A000

101

Fuse

F4A

5 x 20mm

102

Fuse

250mA

5 x 20mm

103

Fuse

T2A

5 x 20mm

104

Fuse

5 x 20mm

105

Fuse

T500mA

5 x 20mm

106

Fuse

T3,15

5 x 20mm

107

Fuse

T2A

5 x 20mm

108

Fuse

10A

5 x 20mm

109

Fuse 6,3x32mm Slow

T 16A Fuse Slow

6,3x32mm

110

Choke

1mH

0207

111

Choke

100uH

0207

112

TLC272ACP

DIL8

113

IC SMD

74AHC74

SO14

114

IC SMD

MAX232CSE

SO16_SOT109-1

115

IC SMD

TLC272

SO8_SOT96-1

116

IC SMD

ICL7660ACPA

SO8

117

IC SMD

MCP4017T-5

SC70-6

118

IC SMD

LM358AD

SO8_SOT96-1

119

IC SMD

TA78L08F

SOT89

120

IC SMD

TA78L05F

SOT89

Exhibit 11 Page 10 of 12

121

IC SMD

LM4040-2.5

SOT23/3

122

LED_3mm

LED_3MM

123

LED_yellow_5mm

Backlight

LED_5mm

124

OLED Display

EA-W204

EA-W204 DISP

125

Photo-coupler

PC817

DIL4

126

Power switch

250V 10A

Marquardt

127

Processor

PIC18F8722

TQFP80

128

Quartz crystal

20MHz

HC49_SMD

129

Relay

G2-RL

Omron_G2RL-1-E

130

Relay

LYCA024

Finder_34.51

131

Relay

SY-12W

RELAIS-SY

132

Relay

G6K

Omron_G6K-2F

133

Relay

FTR-B3

FTR-B3GA012Z

134

Relay

FTR K1

G2RL-1-E

135

Relay vacuum

RH4894

Siemens

136

Resistor Adj.

100k

PT10LV

137

Resistor

5X12R15,24

138

Resistor

10 / 15w

9X38R50,8

139

Resistor

100

1206

140

Resistor

100

0207_MET

141

Resistor

100k

R 2W

142

Resistor

100k

4X12R15,24

143

Resistor

100K

1206

144

Resistor

10K

0207_MET

145

Resistor

10k

1206

146

Resistor

10k

5X12R15,24

147

Resistor

120k

1206

148

Resistor

12k

1206

149

Resistor

150k

5X12R15,24

150

Resistor

150k

0207

151

Resistor

160k

1206

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