Rhotheta RT-600 Light Bedienungsanleitung
User Manual
Installation and Operating
RT-600 Ramptester
RT-600 Ramptester User Manual
RHOTHETA Page 2 of 16 User Manual
Edited by:
RHOTHETA Elektronik GmbH
Kemmelpark
Dr.-Ingeborg-Haeckel-Str. 2
82418 Murnau
Germany
Tel.: +49 8841 4879 - 0
Fax: +49 8841 4879 - 15
Internet: www.rhotheta.de
E-Mail: [email protected]
Copyright © RHOTHETA Elektronik GmbH
All rights reserved
- Issue: 2016/03/23 [Rev 1.00]
- Document-ID: 12-9-1-0014-3-1-60
Note
The manufacturer reserves the right to make modifications at any time and without previous
information of the here described product.
RT-600 Ramptester User Manual
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Content
1Safety Instructions ......................................................................................4
1.1Legend of Symbols ................................................................................................................................. 4
1.2Basic Safety Instructions ........................................................................................................................ 5
2EU Declaration of Conformity.....................................................................5
3General Description.....................................................................................6
4Equipment for Test On-Site ........................................................................6
5Test Procedure.............................................................................................7
5.1Test Preparation ..................................................................................................................................... 7
5.2Bearing Accuracy Measurement ............................................................................................................ 9
5.3Bearing Sensitivity Measurement ......................................................................................................... 11
5.4Audio Test ............................................................................................................................................. 13
6Product Disposal .......................................................................................15
6.1Disposal within the European Union ..................................................................................................... 15
6.2Disposal outside the European Union .................................................................................................. 15
7List of abbreviations..................................................................................16
RT-600 Ramptester User Manual
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1 Safety Instructions
RHOTHETA Elektronik GmbH is constantly trying to keep the safety standard of the products
up to date and to offer the customers the highest possible level of security.
RHOTHETA products are designed and tested in accordance with the valid safety
regulations. The compliance with these standards is continuously monitored by our quality
assurance system. This product is manufactured in accordance with the EC Certificate of
Conformity, tested and left the factory in perfect technical and safety-relevant condition.
To maintain this condition and to ensure safe operation, the user must pay attention to all
instructions and warnings given. For any questions regarding these safety instructions,
RHOTHETA Elektronik GmbH can be contacted at any time.
The observance of the safety instructions will help to prevent personal injury or damage
caused by all kinds of dangers. This requires that the following safety instructions must be
read carefully and understood before using the product, as well as observed when using the
product. The additional safety instructions such as for protecting persons appear in relevant
parts of the product documentation and must also be paid attention to.
In addition, it is the responsibility of the user to use the product appropriately. The product
RT-600 Ramptester may not be used in any way that a person / thing is injured or damaged.
The use of this product other than its designated purpose or in disregard of the instructions of
the manufacturer is the responsibility of the user. The manufacturer takes no responsibility for
the misuse of the product.
The manufacturer is not liable beyond the scope of legal rules!
1.1 Legend of Symbols
NOTE
This symbol designates tips or additional notes that must be paid attention to and make work
easier.
ATTENTION
means that ignoring the instructions may lead to property damage or loss of
data.
WARNING
means that ignoring the instructions, there may a danger to health or life.
RT-600 Ramptester User Manual
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1.2 Basic Safety Instructions
At all work, the local or national safety and accident prevention regulations must be
observed.
Use only the manufacturer prescribed components and / or use only recommended
material by the manufacturer and do not change this.
Connect only approved accessories kits or additional equipment.
The product may only be opened by authorized service personnel.
The unit voids its type approval on operating with unauthorized modifications on the device
or not the intended use.
2 EU Declaration of Conformity
Hereby RHOTHETA Elektronik GmbH declares that the product RT-600 Ramptester
(Basic Equipment) is in compliance with the essential requirements and other relevant
provisions of:
Directive 2011/65/EU on the restriction of the use of certain hazardous substances in
electrical and electronic equipment
The full text of the Declaration of Conformity can be found at:
http:// www.rhotheta.com
The EU Declaration of the Optional Equipment is on request available at RHOTHETA
Elektronik GmbH or directly at the manufacturer of the Optional Equipment.
ATTENTION
Read and observe the following instructions, warnings and safety
instructions of the manufacturer!
RT-600 Ramptester User Manual
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3 General Description
The RT-600 Ramptester is the DF (Direction Finder) performance measurement equipment
designed for quick test and maintenance of the RT-600 SAR Direction Finder. The
Ramptester consists of the antenna measurement device and an optional RF signal
generator, which allows tests on any desired frequencies in the RT-600 defined frequency
range. The antenna measurement device allows the bearing testing in 45° steps and can be
simply attached to the RT-600 AU (Antenna Unit). Thus, the RT-600 Ramptester provides an
extensive and convenient performance test of the Direction Finder installed on an aircraft,
which includes the bearing accuracy, bearing sensitivity and audio modulation tests on every
customer desired frequency channel.
4 Equipment for Test On-Site
Device under Test is the RT-600 SAR Direction Finder installed on the aircraft.
Antenna Unit (AU)
Display & Control Unit (DCU)
Basic Equipment:
Antenna Measurement Device
User Manual
Test Protocol Template
Pressure gauge
31576
Optional Equipment:
•RF Signal Generator
-PN RT-14400WP
-Freq: 35-4400 MHz
-Level: -80 to +10dBm
-Battery, charging circuit
-Cables
-Carrying case
RT-600 Ramptester User Manual
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5 Test Procedure
5.1 Test Preparation
a.) Ensure that the RT-600 is switched on and connected to the audio system of the
aircraft.
b.) Mount the antenna measurement device on the RT-600 antenna unit as it shown in
the following pictures
RT-600 Ramptester User Manual
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c.) Connect the R&S SMC-100A generator or another signal generator that fulfills the
requirements of the test procedure (see page 9 and 11) with the antenna measurement
device
RT-600 Ramptester User Manual
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315° Pos.
FIG 1: RT-600 and Antenna Measurement Device;
azimuth positions
5.2 Bearing Accuracy Measurement
Test Procedure: Bearing Accuracy
Nr. Procedure Setting
1
Set the RT-600 frequency to the desired frequency.
2
Set the signal generator frequency to the measurement frequency.
Depending on purchased frequency options
of RT-600, RHOTHETA recommend the
testing of following frequencies.
Additional frequencies can be tested on
demand.
VHF Air Band 121,500 MHz
VHF Maine Band 156,800 MHz
Military Air band 243,000 MHz
COSPAS-SARSAT 406,025 MHz
3
Set the generator level. -50 dBm
4
Set the generator modulation. AM = OFF
FM = OFF
5
Adjust the antenna measurement device to the 0° Position.
6
Rotate the antenna measurement device to each azimuth position and note the bearing
results in the test protocol.
7
Chose the next frequency and start with the first step.
RT-600 Ramptester User Manual
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Protocol: Bearing Accuracy Measurement (Example)
Nr. Description Limits Result Passed
1 Frequency -- 121,500 MHz --
2 0° Position 350° … 10 ° OK
3 45° Position 35° … 55 ° OK
4 90° Position 80° … 100 ° OK
5 135° Position 125° … 145 ° OK
6 180° Position 170° … 190 ° OK
7 225° Position 215° … 235 ° OK
8 270° Position 260° … 280 ° OK
9 315° Position 305° … 325 ° OK
10 Frequency -- 156,800 MHz --
11 0° Position 350° … 10 ° OK
12 45° Position 35° … 55 ° OK
13 90° Position 80° … 100 ° OK
14 135° Position 125° … 145 ° OK
15 180° Position 170° … 190 ° OK
16 225° Position 215° … 235 ° OK
17 270° Position 260° … 280 ° OK
18 315° Position 305° … 325 ° OK
NOTE:
Other frequencies can be tested according to the test procedure. The see test protocol template can
be adopted appropriately.
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