GSi Protek M733 User manual

USER'S MANUAL

The instruction of PROTEK M733(RF Power Meter) is subject to change
without a notice due to its improvement. Please contact PROTEK if you
find inconsistency in the manual..
Ver. 2.0

Copyright
© 2007, GS Instruments, Co.,Ltd.
All Rights Reserved
Printed in Republic of Korea
Revision History
Date Version Changes
03/2007 Original
Version 1.0
03/2007 Version 1.1 Revision contents
04/2007 Version 1.2 Revision contents
03/2008 Version 2.0 Revision contents and inscription of
specification amended

Overview and Features
1. Overview
PROTEK M733 is a portable cost-effective RF Power meter. When measuring RF power,
users can replace its battery easily and if there is not enough battery power, this device
is able to alarm automatically. Frequency range is from 10MHz to 2.9GHz and PROTEK
M733 can measure the average watts of RF signals from 2mW to 500mW. Also, all the
measured data can be properly displayed in the LCD screen by auto-scale and selecting
unit functions. Users can decide to hold the measured data in the screen by pushing the
"Hold" button or run the data. To protect PROTEK M733 from high input power, it can
detect high input power and alarm it to users.
Figure 1 illustrates functions and connections of PROTEK M733
Figure 1. F
unctions and connections of PROTEK M733
RF Connector
Meter ZERO Button
LCD Screen
Meter HOLD Button
Meter UNIT Button
Power ON/OFF Button
RF signal measuring connector
Initialization button
All the measured data, units,
battery alarm, and Hold function
are displayed.
All the measured data can be
held temporarily
Selecting four units (mW, dBm,
mV, and dBmV)

Overview and Features
1. Overview
PROTEK M733 is a portable cost-effective RF Power meter. When measuring RF power,
users can replace its battery easily and if there is not enough battery power, this device
is able to alarm automatically. Frequency range is from 10MHz to 2.9GHz and PROTEK
M733 can measure the average watts of RF signals from 2mW to 500mW. Also, all the
measured data can be properly displayed in the LCD screen by auto-scale and selecting
unit functions. Users can decide to hold the measured data in the screen by pushing the
"Hold" button or run the data. To protect PROTEK M733 from high input power, it can
detect high input power and alarm it to users.
Figure 1 illustrates functions and connections of PROTEK M733
Figure 1. F
unctions and connections of PROTEK M733
RF Connector
Meter ZERO Button
LCD Screen
Meter HOLD Button
Meter UNIT Button
Power ON/OFF Button
RF signal measuring connector
Initialization button
All the measured data, units,
battery alarm, and Hold function
are displayed.
All the measured data can be
held temporarily
Selecting four units (mW, dBm,
mV, and dBmV)

Figure 2. General setups
RF INPUT
RF OUTPUT
RF Source
Overview and Features

2. Features
l PROTEK M773 is a cost-effective, high-end portable RF Power Meter.
l PROTEK M773 is using common batteries and light and easy to carry.
l Unlike other RF Power Meters, it is convenient to measure watts because there is
no power sensor.
l Measurable average Watts range of RF signals: 2mW ~ 500mW
l Measurable Frequency Range: 10MHz~2.9GHz
l Measured data display: Auto-Scale Function
l Support HOLD/RUN Function
l Support initialization Function (Meter Zero)
l Support Unit Select Function (mW, dBm, mV, and dBmV)
l Support "LPI" Alarm
l Support "HPI" Alarm
l Support "LO BAT" Alarm

ATTENTION
Please read the followings
l Please do not input over 500mW(1/2 W) of RF Watts. The damage by this case
cannot be covered by the product warranty.
l When exchanging the batteries, please check the electrode of new batteries.
If they are not correct, PROTEK M733 will not work properly.
l Avoid severe shocks to affect the performance of PROTEK M733 and handle it with
care.
l Be careful of static electricity when using PROTEK M773
l Please do not put a conductor into connectors.
l Please use correct connectors and cables. (RF Input, N Type, 50 ohm)

1. Usage
USAGE
A. Connect cables to PROTEK M733
B. Push the "power On/Off" button
C. Initialize PROTEK M733 by pushing the "Zero" button before the input RF signals.
D. The default unit is mW. To use other units, please push the "UNIT" button
E. Refer to Figure 3 about LCD output information
F. If the measured data in mV are higher than 1999, a dot between the first two digits
will blink. For example, if the measured value is 2500mV, then 250 will be displayed
and a dot will blink between 2 and 5 so users can treat this 2.5V or 2500mV.
G. If the input RF signals are over 500mW, then HPI (High Power Input) alarm will be
displayed irrespective of the measured data.

H. When measuring in dBm and dBmV, if the data is below +0.5mW, then
PROTEK M773 will alarm "Low Power Input," however, when in mW and mV,
PROTEK M773 accepts - values. Therefore, LPI alarm will not go off.
I. If users want to hold the final measured data, push the "Hold" button. In this case,
"HOLD" icon will be displayed on the screen. If users want to go on measuring, then
simply push the "HOLD" button again.
J. If "LO BAT" sign is shown on the screen, turn PROTEK M773 off and replace the
batteries.
K. When measuring different signals continuously, please initialize PROTEK M733.
USAGE

그림 3. LCD 출력정보
Low Battery
Numeric Data
Unit Display
+/- Sign
HOLD
(a) LCD 출력
(b) 알림 정보 지원
"HPI" (High Power Input ; 대전력 입력)
at All Units(mW, mV, dBm, and dBmV)
"LPI" (High Power Input ; 대전력 입력)
at All Units(mW, mV, dBm, and dBmV)

2. Exchange Battery
A. Check if PROTEK M733 is off. If it is on, push the on/off button.
B. Unscrew the bolt of the backside of PROTEK M733 using a screwdriver.
C. Open the battery cover.
D. Remove two batteries (DC 9V) and place new batteries carefully checking their
electrode.
E. After closing the battery cover, tighten the bolt using a screwdriver.
(Be careful not to tighten the bolt too firmly, otherwise it might wear out the
screwdriver and bolt)
Usages

Figure 4. Filter Test
RF INPUT
Filter
RF OUTPUT
RF Source
Unit Under Test
1. Filter Test
Usages

Figure 5. Amplifier Test
RF INPUT
RF OUTPUT
RF Source
Amplifier
Under Test
RF INPUT
2. Amplifier Test
l Frequency Range: 10MHz~ 2.9GHz
l RF Input Power Average Watt: 2mW to 500mW Max
l Accuracy : 10MHz ~ 2.9GHz, ±1.5dB, Typical 93%
l Initialization: Push "meter zero" button
l Hold Function: Push "Hold" button
l Selecting units: Push each appropriate button such as mW, dBm, mV, dBmV
l Input Connection: N-type Female Connector (50 ohms)
l LCD Type : Mono, FSTN LCD
l Operating Temperature: +10°C to +40°C
l Storage Temperature: -20°C to +70°C
l Size: 89mm(W)´160mm(H) ´ 45.7mm(D)
l Weight: 900g Max
l Power: 6F22UT(006PUT) DC 9V Battery 2
Usages Specifications
Amplifier Variable
Attenuator
Directional
Coupler

Figure 5. Amplifier Test
RF INPUT
RF OUTPUT
RF Source
Amplifier
Under Test
RF INPUT
2. Amplifier Test
l Frequency Range: 10MHz~ 2.9GHz
l RF Input Power Average Watt: 2mW to 500mW Max
l Accuracy : 10MHz ~ 2.9GHz, ±1.5dB, Typical 93%
l Initialization: Push "meter zero" button
l Hold Function: Push "Hold" button
l Selecting units: Push each appropriate button such as mW, dBm, mV, dBmV
l Input Connection: N-type Female Connector (50 ohms)
l LCD Type : Mono, FSTN LCD
l Operating Temperature: +10°C to +40°C
l Storage Temperature: -20°C to +70°C
l Size: 89mm(W)´160mm(H) ´ 45.7mm(D)
l Weight: 900g Max
l Power: 6F22UT(006PUT) DC 9V Battery 2
Usages Specifications
Amplifier Variable
Attenuator
Directional
Coupler