Rhotheta RT-1000 A User manual

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
User Manual
VHF Direction Finder System
RHOTHETA RT-1000 A

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
Edited by:
RHOTHETA Elektronik GmbH
Kemmelpark
Dr.-Ingeborg-Haeckel-Str. 2
82418 Murnau
Germany
Tel.: [phone] - 0
Fax: [phone] - 15
Internet: www.rhotheta.de
E-Mail: [e-mail]
Copyright © RHOTHETA Elektronik GmbH
All rights reserved
-Issue: 2016/04/26 [Rev 4.00]
-Document-ID: 12-9-1-0017-3-1-2
NOTE
The manufacturer reserve the right to make modifications at any time and without previous information
of the here described product.

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
Section 1
General Information
General Description, Characteristics, Flexible System Configuration,
Bearing Display and Bearing Quality Analysis, Antenna System,
Antenna Mast,Technical Data
Section 2
Controller
RTC 1100.B
Section 3
Not Applicable
Section 4
Direction Finder Antenna
RTA 1300.A
Section 5
Appendix
Approval of the Direction Finder System and Manufacturer Declarations
Inter-wiring of the Direction Finder
Test Record

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 1.1 -
1 GENERAL INFORMATION
List of Contents:
1 GENERAL INFORMATION ............................................................1.1
1.1 General Description ......................................................................................1.2
1.1.1 Options...............................................................................................................................1.2
1.1.2 System Configuration.......................................................................................................1.3
1.1.3 Subsystems .......................................................................................................................1.3
1.1.4 Block Diagram ...................................................................................................................1.4
1.2 Technical Data...............................................................................................1.5
1.2.1 Basic Data ..........................................................................................................................1.5
1.2.2 Electrical Characteristic....................................................................................................1.6
1.2.2.1 System Characteristic................................................................................................1.6
1.2.2.2 Power Supply..............................................................................................................1.7
1.2.2.3 Interface ......................................................................................................................1.7
1.2.3 Mechanical characteristics...............................................................................................1.8
1.2.3.1 Antenna RTA 1300.A..................................................................................................1.8
1.2.3.2 Controller RTC 1100.B...............................................................................................1.9
1.2.4 Environmental Conditions..............................................................................................1.10
1.2.4.1 Antenna RTA 1300.A................................................................................................1.10
1.2.4.2 Controller RTC 1000.B.............................................................................................1.10
1.3 Safety............................................................................................................1.11
1.3.1 Symbols............................................................................................................................1.11
1.3.2 Basic Safety Note ............................................................................................................1.12
1.4 Disposal within the European Union.........................................................1.12
1.5 Disposal outside the European Union.......................................................1.12

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 1.2 -
1.1 General Description
The direction finder system RT-1000 A is designed for ATC (air traffic control) and VTS (vessel traffic
service) application. The system can be used in stationary and mobile applications.
1.1.1 Options
Options
Option Designation Information Part No.
Antenna Model RTM-1501 Accessories:
System Test and Maintenance RTM-1501 A
Service-Kit RT-1000 Accessories:
System Test and Maintenance
RTM-1500 A
Antenna Mast RTA 1306.C Accessories:
Antenna mounting
RTA-1306 C
Improved Bearing Accuracy 1° RMS
1)
Selection:
RTA 1300.A antenna
VHF maritime band with VHF air band
2)
Unlock: 156,000-174,000 MHz
VHF maritime band with Emergency
Frequency 121,5 MHz
3)
Unlock:
156,000-174,000 MHz
+ 121, 500MHz
Red Display
Modification:
Indication of frequency and bear-
ing in red colour.
8,33 kHz Channel Spacing for air band Unlock: Support of the 8,33 kHz Channel
Spacing
1) The "Improved Bearing Accuracy" option is achieved by selection of the antennas.
2) Frequency Range Extension to maritime band 156,000 – 174,000 MHz
3) VHF maritime band 156,000 – 174,000 MHz incl. Emergency Frequency 121,500 MHz instead of
VHF air band 118,000 – 174,000 MHz

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 1.3 -
1.1.2 System Configuration
System Configuration RT-1000 A
Antennen System
RTA 1300.A
Antennen-
Steuerung
HF-Kabel
Controller
RTC 1100.B
Configuration:
The system operates in „non remote mode“. Receiver, demodulator and antenna control module are integrat-
ed in the controller unit located at the antenna position. They are connected by means of a 6-wire control line
and a coaxial RF wire.
1.1.3 Subsystems
Subsystems
No Designation File Reference Part No.
1 RT-1000 A Controller RTC 1100.B 12-9-2-0020-2-1 RTC-1100 B
2 RT-1000 Antenna RTA 1300.A 12-9-2-0019-2-1 RTA-1300 A

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 1.4 -
1.1.4 Block Diagram

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 1.5 -
1.2 Technical Data
1.2.1 Basic Data
Basic Data
Parameter Condition Data
DF method - Doppler (3 kHz rotation frequency)
Response time
1)
With sufficient signal strength ≤500 ms / typ. ≤250 ms
Minimum signal duration
2)
- typ. ≤300 ms
Internal system resolution - 0,5°
Frequency range
3)
Air band VHF 118,000 – 136,975 MHz
Maritime band 156,000 – 174,000 MHz
Operating Channels Air band VHF 760 (25 kHz)
2278 (8,33 kHz)
Maritime band Channel 01 - 88 (incl. duplex
channels)
Channel Spacing Air band VHF 25 kHz
8,33 kHz (Option)
Maritime band 25 kHz
Bearable modulation types - A3E, F3E, A3X (ELT-modulation)
Number of bearing Channels
simultaneous bearing Chan-
nels 1
Polarization - vertical
Polarization Error With field vector rotation up to
45° ±1°
Cone of confusion Bearing Fluctuation ±5° ≤45° / typ. 35°
Height of installation site Max. 3000 m a.s.l.
MTBF Complete System ≥168.000 h
1) Time required determining and displaying a bearing value
2) Minimum required signal duration to determine a bearing value
3) Frequency range depend on the software configuration (Unlock Options)

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 1.6 -
1.2.2 Electrical Characteristic
1.2.2.1 System Characteristic
System Properties
Parameter Condition Limit Typical
Bearing sensitivity
118,000 – 136,975 MHz,
±2°bearing fluctuation ≤5 µV/m
1)
≤2,5 µV/m
156,000 – 174,000 MHz,
±2° bearing fluctuation ≤5 µV/m ≤2,5 µV/m
Bearing accuracy
1)
118,000 – 136,975 MHz
2° RMS
1° RMS (Opt.)
2)
2° RMS
1° RMS (Opt.)
2)
156,000 – 174,000 MHz
2° RMS
1° RMS (Opt.)
2)
2° RMS 1° RMS (Opt.)
2)
1) Measured in undisturbed wave field, with unmodulated signal, with sufficient signal strength
2) Option with improved Bearing Accuracy 1° RMS

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 1.7 -
1.2.2.2 Power Supply
Technical Data
Parameter Condition Data
Power supply AC 115 / 230 V ±15 %; 47...63 Hz
DC 24 V -10 % / +20 %
Power consumption Controller 15 VA
1.2.2.3 Interface
Interfaces and Protocols
Designation Connector Transmission Type Protocol Max. Data Rate
Serial Interface 1x D-Sub
9-pol Female RS-232 ASCII-8-bit 1200 baud

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 1.8 -
1.2.3 Mechanical characteristics
1.2.3.1 Antenna RTA 1300.A
Antenna RTA 1300.A with Antenna Mast RTA 1306.A
400
1120 3120
141
C l a mp i n g A e r i a
42
4100
5700
200
ø40
+1
- 0
1490
Mechanical Characteristis
Subsystem Width Height Weight
RT-1000 Antenna RTA 1300.A 400 mm 3120 mm 10,2 kg
RT-1000 Antenna RTA 1300.A + Antenna Mast RTA 1306.C 1420 mm 5700 mm 120 kg
Antenna can be folded down for maintenance
DF antenna RTA 1300 with lightning rod and mast tube Antenna Mast RTA 1306.A
All dimensions are in [mm]
antenna rotator for accuracy test

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 1.9 -
1.2.3.2 Controller RTC 1100.B
Controller RTC 1100.B
Mechanical Characteristis
Subsystem Length Width Height Weight
RT-1000 Controller RTC 1100.B 482,6 mm 377,7 mm 132,5 mm 9,3 kg
1
1
The weight is valid for the Controller without remote operation mode

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 1.10 -
1.2.4 Environmental Conditions
1.2.4.1 Antenna RTA 1300.A
Environmental Conditions
Parameter Data
Wind load
(with constant wind speed) 150 km/h / 135 N
180 km/h / 195 N
allowed wind speed ≤240 km/h
Operating temperature range -40°C…+80°C
Storage temperature range -40°C…+80°C
Ingress protection IP 65
1.2.4.2 Controller RTC 1000.B
Environmental Conditions
Parameter Data
Operating temperature range -20°C…+55°C
Storage temperature range -40°C…+60°C
Humidity 95% at 35°C
60% at > 35°C

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 1.11 -
1.3 Safety
RHOTHETA Elektronik GmbH is constantly striving to keep the safety standard of its products up to
date. We try to offer our customers the highest possible degree of safety.
RHOTHETA products are designed and tested in accordance with the current applicable safety regula-
tions. The compliance with these standards is continuously monitored by our quality assurance system.
This product is built in according to the EU certificate of conformity, and has left the factory in perfect
technical condition.
To maintain this safety condition and to ensure safe operation, the user must observe all instructions
and warnings which are provided. For all questions regarding these safety instructions RHOTHETA
Elektronik GmbH will be at your disposal at any time.
Observing the safety instructions will help to prevent personal injury or damage from hazards of all
kinds. This requires that the following safety instructions have to be read and understood before using
the product and they have to be observed while using the product. All further safety instructions, such
as personal safety instructions, which appear in the relevant parts of the product documentation, must
also be strictly observed.
Moreover, it is in the responsibility of the user to use the product in a proper way. It is not allowed to
use the DF system RT-1000 A in a way, which can cause damage to a person or a thing.
The use of this product in an other than its designated purpose or in disregard of the manufacturer's
instructions is the responsibility of the user. The manufacturer assumes no responsibility for the mis-
use of the product.
The manufacturer is not liable beyond the scope of legal rules!
This manual is part of the product RT-1000 A and is to keep during the lifetime and pass on to the
product.
1.3.1 Symbols
NOTE
With “Note”, tips or supplementary notes are marked which must be observed and make work easier.
ATTENTION
means that failure to observe the instructions can result in property damage
or loss of data.
WARNING
means that failure to observe the instructions may be a danger to health or
life.

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 1.12 -
1.3.2 Basic Safety Note
•At all activities, local or national safety and accident prevention regulations must be observed.
•Only use manufacturer prescribed components and / or use only material recommended by the
manufacturer and do not modify them.
•Only connect approved accessories or ancillary equipment.
•The product may only be opened by authorized service personnel.
•The product voids its type approval on operating with unauthorized modifications on the device
or unintended use.
1.4 Disposal within the European Union
Product Recycling
Product labelling in accordance with EN 50419
At the end of product life, this product may not to be disposed together with normal household waste.
Even disposal via the municipal waste disposal collection for electrical and electronic equipment is not
permitted.
The correct disposal of this product helps to protect the environment and prevent any potential damage
to the environment and human health, which can occur due to improper handling of the product.
•Therefore, supply the device to an electronics recycling after the final taken out of service.
Otherwise
•RHOTHETA Elektronik GmbH takes back all products that are subject to the requirements of
the WEEE Directive (2012/19/EU) of the European Union to supply these products to profes-
sional disposal.
1.5 Disposal outside the European Union
For proper disposal of used electronic equipment in accordance with the respective national regula-
tions in countries outside the European Union please check it with your dealer or the local authorities.
ATTENTION
Read and observe the following instructions, warnings and safety instruc-
tions of the manufacturer!

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 2.1 -
2 CONTROLLER RTC 1100.B
List of Contents:
2 CONTROLLER RTC 1100.B ..........................................................2.1
2.1 Key to Front and Rear Views........................................................................2.5
2.2 Preparation for Use .......................................................................................2.9
2.2.1 Grounding ..........................................................................................................................2.9
2.2.2 Mains Voltage ....................................................................................................................2.9
2.2.3 Mains Fuse.......................................................................................................................2.10
2.2.4 DC Voltage Connection...................................................................................................2.10
2.2.5 Power Supply...................................................................................................................2.11
2.2.6 Connection of the Antenna Unit.....................................................................................2.11
2.2.7 Rack Mounting.................................................................................................................2.12
2.2.8 Switching on / Reaction from Unit.................................................................................2.12
2.2.9 Phase Adjustment ...........................................................................................................2.12
2.2.9.1 Adjustment Using RTM 1501 Dummy Antenna (Option)......................................2.13
2.2.9.2 Adjustment Using a Transmitter.............................................................................2.13
2.2.10 North Adjustment ............................................................................................................2.14
2.2.11 Adjustment of the Squelch threshold............................................................................2.14
2.2.12 Variation Adjustment ......................................................................................................2.15
2.2.13 Disable Selection of Reference Direction .....................................................................2.16
2.2.14 Ground Transmitter Suppression..................................................................................2.17
2.3 Display and Operating Functions...............................................................2.18
2.3.1 Bearing Display and Bearing Quality Analysis.............................................................2.18
2.3.2 Test Function...................................................................................................................2.18
2.3.3 “REPEAT” Repetition of Bearing Indication.................................................................2.19
2.3.4 Frequency Selection .......................................................................................................2.20
2.3.4.1 Direct Frequency Selection in the 25 kHz channel spacing.................................2.20
2.3.4.2 Direct Frequency Selection in the 8.33 / 25 kHz channel spacing.......................2.21
2.3.4.3 Recalling a Frequency Memory ..............................................................................2.24
2.3.4.4 Programming the Frequency Memory ...................................................................2.24
2.3.5 Direct Selection of Channel Number in Maritime Radio Communication..................2.25
2.3.6 Scanning ..........................................................................................................................2.26
2.3.6.1 Selection of Scan Mode...........................................................................................2.26

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 2.2 -
2.3.6.2 Stopping Scanning...................................................................................................2.27
2.3.7 Direct Recall of the Distress Frequency 121.500 MHz.................................................2.27
2.3.8 North Adjustment ............................................................................................................2.27
2.3.9 Selection of the reference directions QDM, QDR, QUJ und QTE...............................2.28
2.3.10 Checking the Variation adjustment ...............................................................................2.30
2.3.11 Frequency Deviation .......................................................................................................2.30
2.3.12 Error Indication................................................................................................................2.30
2.3.13 Dimmer (1) "DIM".............................................................................................................2.31
2.3.14 Volume Control (9) ..........................................................................................................2.31
2.3.15 Headphones Connection (10).........................................................................................2.31
2.3.16 "STANDBY" Indicator (11)..............................................................................................2.31
2.3.17 ON / OFF Switch (12).......................................................................................................2.31
2.3.18 "Line" Mains Switch (19) ................................................................................................2.32
2.3.19 Power Supply "OK" Indicator (21) .................................................................................2.32
2.3.20 "Data-Port" Data Interface (22).......................................................................................2.32
2.3.21 "Sync" Synchronisation Indicators (23, 24)..................................................................2.34
2.3.22 "DF Signal 2" Test Plug (26)...........................................................................................2.34
2.3.23 "R/L" Test Connector (25) ..............................................................................................2.34
2.3.24 "Serial Port" Serial Interface (30)...................................................................................2.35
2.3.24.1 Data Output...............................................................................................................2.36
2.3.24.2 Data Input..................................................................................................................2.38
2.3.24.3 Technical Data..........................................................................................................2.40
2.3.24.4 "Ser. Port" Plug Wiring (30).....................................................................................2.40
2.3.24.5 Connection to a Data Terminal or Data Transmission Device.............................2.41
2.3.24.6 Compatibility mode..................................................................................................2.42
2.3.25 "Parallel Port" Parallel Interface (31).............................................................................2.42
2.3.25.1 Time Sequence.........................................................................................................2.43
2.3.26 R/L OFF Button (42) ........................................................................................................2.43
2.3.27 “IF” Intermediate Frequency Jack (43)..........................................................................2.43
2.3.28 Receiver Status Indication (44, 45, 46, 47, 48)..............................................................2.43
2.3.29 Manual Squelch Adjustment Potentiometer (49)..........................................................2.44
2.3.30 Antenna Control Interface (50).......................................................................................2.44
2.4 Installation Dimensions ..............................................................................2.45

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 2.3 -
List of Figures:
Figure 2-1 Front view.......................................................................................................................... 2.7
Figure 2-2 Rear view........................................................................................................................... 2.8
Figure 2-3 Mains voltage selector...................................................................................................... 2.9
Figure 2-4 Mains power connection, mains fuse holder................................................................ 2.10
Figure 2-5 Variations Adjustment ................................................................................................... 2.15
Figure 2-6 Disabling Selection of Reference Direction................................................................. 2.16
Figure 2-7 Wiring diagram for ground transmitter suppression.................................................. 2.17
Figure 2-8 Wiring diagram for ground transmitter suppression with non-floating contact ..... 2.17
Figure 2- 9 D-sub-jack 9-way........................................................................................................... 2.17
Figure 2-10 Bearing Display ............................................................................................................ 2.18

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 2.4 -

RHOTHETA Elektronik GmbH User Manual RT-1000 A [Rev 4.00]
- 2.5 -
2.1 Key to Front and Rear Views
All the position numbers refer to operating elements shown in the front and rear views (Figure 2-1 and
Figure 2-2).
No. Designation Function see Section
1 DIM / Dimmer 2.3.13
2 Digital bearing display 2.3.1
3 N/E/S/W Bearing direction (Ref.: QDR) 2.3.1
4 N/E/S/W Live bearing direction (Ref.: QDR) 2.3.1
5 >< Frequency deviation 2.3.11
6 Error indication 2.3.12
7 TEST Test function 2.3.2
8 FREQUENCY
(MHz) Display of frequency, north adjustment and error code 2.3.4 2.3.5
2.3.8
9 Volume control 2.3.14
10 Headphones connection 2.3.15
11 STANDBY Control lamp for STANDBY mode 2.2.8
2.3.16
12 OFF / ON ON/OFF switch 2.3.17
13 Keypad for entering frequency / channel / scan 2.3.4
14 REPEAT Repetition of bearing indication 2.3.3
15 121.500 MHz Call-up of distress frequency 121.500 MHz 2.3.7
16 STOP/SCAN Termination or selection of scan mode 2.3.6
17 Reference direction Indicator 2.3.1
2.3.9
18 QDM; QDR;
QUJ; QTE selection switch for reference direction 2.3.9
19 Line Mains switch 2.3.18
20 F1 24-V DC fuse 2.2.4
21 OK Power supply control lamp 2.3.19
22 Data-Port Data interface 2.3.20