Rhotheta RT-1000 User Manual
Multichannel df-channel
Hide thumbs
Also See for RT-1000:
- User manual (30 pages) ,
- Maintenance manual (20 pages) ,
- Installation manual (18 pages)
Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Rhotheta RT-1000
Summary of Contents for Rhotheta RT-1000
- Page 1 User Manual RT-1000 Multichannel DF-Channel...
- Page 2 Tel.: +49 8841 4879 - 0 Fax: +49 8841 4879 - 15 Internet: www.rhotheta.de E-Mail: email@rhotheta.de Copyright © RHOTHETA Elektronik GmbH All rights reserved Issue: 2016/11/08 [Rev 1.02.a] Document-ID: 12-9-1-0015-10-1-3-1-60 Note The manufacturer reserves the right to make modifications at any time and without previous information of the here described product.
-
Page 3: Table Of Contents
RT-1000 MC DF-Channel Content Description ........................5 Front View ........................5 Block Diagram and Component Description ..............6 Control Elements ......................8 Rear View.......................... 9 Functional Descriptions ....................12 Switching on the DF-Channel ....................... 12 Switch-on Reaction, Operation, Control Equipment ................12 Receiver Self-Test .......................... - Page 4 RT-1000 MC DF-Channel AM – Output ............................24 FM – Output ............................24 PHI – Output ............................25 AF – Output ............................25 Mechanical Parameters ....................26 Notes ..........................27 RHOTHETA Page 4 of 27 User Manual...
-
Page 5: Description
RT-1000 MC DF-Channel 1 Description The DF-Channels are the central element of the bearing system. The channels include the receiver unit with the signal demodulation for AM and FM signals. Also the bearing value calculation is done in the DF-Channels. -
Page 6: Block Diagram And Component Description
RT-1000 MC DF-Channel 3 Block Diagram and Component Description RHOTHETA Page 6 of 27 User Manual... - Page 7 RT-1000 MC DF-Channel DF-Channel Components Pos. Component Number Description Receives the RF signal from the RF-Splitter. Demodulates the AM and FM signals and Receiver RTR-1204 generates the bearing phase. The Receiver Interface controls the receiver unit. It is the communication interface...
-
Page 8: Control Elements
RT-1000 MC DF-Channel 4 Control Elements Front Side Interfaces Pos. Component Description Receiver test jack Receiver Power Control LED Control LED for receiver squelch Frequency(MHz) Receiver Display Sql/(Level) ∆f- Control LED for negative frequency deviation ∆f+ Control LED for positive frequency deviation ▲... -
Page 9: Rear View
RT-1000 MC DF-Channel 5 Rear View Fig. 2: DF-Channel Rear View RHOTHETA Page 9 of 27 User Manual... - Page 10 RT-1000 MC DF-Channel Rear Side Interfaces Pos. Connector Pin Signal Note 1 – 4 RF-IN RF Input from the RF-Splitter 5 – 29 Internal Connector 1 – 32 Internal Connector 1 – 32 Internal Connector 1 – 32 Internal Connector 1 –...
- Page 11 RT-1000 MC DF-Channel Rear Side Test Points Signal Note +5 V +5 V DC Supply after the channel power switch +15 V +15 V DC Supply after the channel power switch -15 V -15 V DC Supply after the channel power switch 6144 kHz Input of the Reference Signal 6.144 MHz...
-
Page 12: Functional Descriptions
Pos.15) is started. This involves the numerical series 88888888 flashing for approximately 4 s. Following this, after that the system identification “RT-1000 A” is displayed and the actual software version is shown for some seconds. When the self-test is finished the last frequency set appears. -
Page 13: F-, ∆F+ Deviation Recognition Control Leds
RT-1000 MC DF-Channel 6.8 ∆f-, ∆f+ Deviation Recognition Control LEDs The red control LEDs (Fig 1, Pos. 16 & 17) light up if a signal with a large frequency deviation is received. This shows that a signal is being received which is not suitable for direction finding purposes. -
Page 14: Phase Adjustment
RT-1000 MC DF-Channel 6.15 Phase Adjustment A special feature of the RT-1000 DF is its phase compensation by left / right rotation of the antenna. This allows complete compensation of direction finding errors caused by signal phase variations in the reception channel. However, it is only possible to compensate for a limited phase value. -
Page 15: Error Indication
RT-1000 MC DF-Channel 6.16 Error Indication The equipment has a wide range of self-test devices. If an error is discovered, the error code is shown flashing at 1 sec. intervals in the frequency display (Fig 1, Pos. 15). Display: E R R 7... -
Page 16: Serial Interface
RT-1000 MC DF-Channel 6.20 Serial Interface The serial interface RS-232 (Fig 2, X21) enables the transmission of bearing data to an external control unit and also permits remote control from an external unit. The characters to be transferred are transmitted in ASCII code from the CPU RTC 1104 Controller. -
Page 17: Data Output
RT-1000 MC DF-Channel 6.21 Data Output The data output is continuous, i.e. no control by means of a handshake signal or control characters is necessary. Message Header Content „Average“ bearing [CR][LF] 0° … 359° (QDR) X X X (QDR-value) │ │ └───────────────>... - Page 18 RT-1000 MC DF-Channel Timing and priority of cyclic data output Message „Average“ bearing approx. every 0,25 sec The first bearing value (after start of signal) will be transmitted immediately. Without signal, no average value will be transmitted. „Live“ bearing approx. every 0,1 sec With low priority.
-
Page 19: Data Input
RT-1000 MC DF-Channel 6.22 Data Input All received data are checked for correct syntax and plausibility referring to the actual unit setting. All received data are also checked for compliance with the limiting values. The data input is monitored over a time-out of 100 ms, i.e. - Page 20 Remark for frequency- and squelch input: If a newly tuned frequency or squelch value are retained permanently in the system, even after a RT-1000 device restart, it must be stored in the EEPROM device in addition. This is done by directly transmitting a previous "S3 [CR] [LF]"...
- Page 21 RT-1000 MC DF-Channel Example of frequency change Data In/Output: Frequency-change to 133,400 MHz (with 8.33 kHz ICAO grid) using a data input message. „Fxxxxxx[CR][LF] Remark: After valid data input, the new changed frequency will be transmitted immediately … Data logging with Wireshark via TCPIP;...
-
Page 22: Electrical Parameters
RT-1000 MC DF-Channel 7 Electrical Parameters 7.1 Power Supply Power Supply Pos. Test Point Value TP 1 +5,15 V ± 0,15 V I = 500 mA TP 2 +15 V ± 0,25 V I = 300 mA TP 3 -15 V ±... -
Page 23: Reference Signals Input
RT-1000 MC DF-Channel 7.3 Reference Signals Input To test the reference signals an Antenna Control unit has to be connected to the DF-Channel. Reference Signals Pos. Signal Test Point Value f = 6,144 MHz ± 0,03 MHz ≥ +0,5 V... -
Page 24: Pegel- Output
RT-1000 MC DF-Channel 7.4 Pegel- Output To test the level output, connect a signal generator to RF-Splitter RF-IN and measure the DC voltage with a multimeter. Level-Output Connector Signal Conditions Value Pegel f = 127,500 MHz Modulation: Off = -120 dBm = 1,25 V ±... -
Page 25: Phi - Output
RT-1000 MC DF-Channel 7.7 PHI – Output To check the PHI-Output of the DF-Channel, connect signal generator to the Antenna Model and the Antenna Model with the RF-Splitter TEST-IN and measure the output with an analyzer (600 Ω impedance). PHI-Output... -
Page 26: Mechanical Parameters
RT-1000 MC DF-Channel If the optional 8,33 kHz raster is included the following values are additional relevant. AF-Output, FM Characteristic 8,33 kHz Raster Connector Signal Settings Value X 18 Signal Generator = -10 dBm ±1,5 dB = 250 mV ±10% @600 Ω) -
Page 27: Notes
RT-1000 MC DF-Channel 9 Notes RHOTHETA Page 27 of 27 User Manual...
Need help?
Do you have a question about the RT-1000 and is the answer not in the manual?
Questions and answers