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Quasonix Compact RDMS Installation And Operation Manual

Manual is about: Telemetry Receiver

Summary of Compact RDMS

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    Iso 9001:2008 certified no part of the document may be circulated, quoted, or reproduced for distribution without prior written approval from quasonix, inc. Copyright quasonix, inc., all rights reserved. Installation and operation manual compact rdms tm telemetry receiver quasonix, inc. 6025 schumac...

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    Compact rdms tm telemetry receiver i quasonix, inc. Table of contents 1 introduction ............................................................................................................................................ 1 1.1 description............................................................

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    Compact rdms tm telemetry receiver ii quasonix, inc. 13.5 know your transmitter .............................................................................................................. 44 14 appendix e – factory reset values ........................................................................

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    Compact rdms tm telemetry receiver iii quasonix, inc. Table 10: optional 37-pin assignments...................................................................................................... 37 table 11: qpsk factory reset values.......................................................................

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    Compact rdms tm telemetry receiver 1 quasonix, inc. 1 introduction 1.1 description this document describes the installation and operation of the quasonix compact rdms™ telemetry receiver. The rdms™ (receiver / demodulator / bit synchronizer) is designed to demodulate rf signals in several formats: ...

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    Compact rdms tm telemetry receiver 2 quasonix, inc. 1.2.1 options the available options include:  14 14 saw filter option (adds 70 khz, 1.4, 3, 6, 14, and 28 mhz filters)  8f eight-way clock and data multiplexer (requires 37-pin connector)  dr double rate soqpsk-tg (46 mbps)  en ethernet payload...

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    Compact rdms tm telemetry receiver 3 quasonix, inc. 1.2.2.2 eight-way clock and data multiplexer – 8f normally, the three clock and data streams available on the mdm-37 are clock and data a (the primary), clock and data b (the secondary for asynchronous psk modulations), and clock and data c (what w...

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    Compact rdms tm telemetry receiver 4 quasonix, inc. The receiver has two independent decoders, one for in-phase (“i”) data and one for quadrature (“q”) data. For bpsk, only a single decoder is used. Each decoder is compatible with the convolutional encoding described in the “consultative committee f...

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    Compact rdms tm telemetry receiver 5 quasonix, inc. 1.2.3 band configurations band configuration codes are listed in error! Reference source not found.. Two additional band codes are described in section 1.2.3.1. Table 2: band configuration codes p lower l upper l c 200.0 400.0 1150.0 1415.0 1435.5 ...

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    Compact rdms tm telemetry receiver 1 quasonix, inc. 1.2.3.1 additional band codes two additional band codes are available:  band code 7: 70 mhz standard range, 0.5 mhz-20 mhz, 70 mhz extended range  band code t: 2025.0 mhz to 2110.0 mhz standard range.

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    Compact rdms tm telemetry receiver 2 quasonix, inc. 2 specifications characteristic specification receiver section type dual-conversion superheterodyne input rf frequency refer to table 2 tuning resolution tunes in 62.5 khz increments, to the 70 mhz if output, after the 70 mhz if output, receiver tu...

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    Compact rdms tm telemetry receiver 3 quasonix, inc. Demodulator section demodulator type artm tier 0 (pcm/fm), artm tier i (soqpsk-tg), artm tier ii (multi- h cpm) legacy suite: analog fm, bpsk, qpsk, offset qpsk (oqpsk), asymmetric qpsk (aqpsk), unbalanced qpsk (uqpsk), asymmetric unbalanced qpsk (...

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    Compact rdms tm telemetry receiver 4 quasonix, inc. 3 installation instructions 3.1 mechanical the compact rdms™ is designed to be mounted by eight (8) 6-32 screws through the holes along the front and back edges, as depicted in figure 2 on the following page..

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    Compact rdms tm telemetry receiver 5 quasonix, inc. Figure 2: rdms™ in 4.00” x 3.00” x 1.00” compact housing.

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    Compact rdms tm telemetry receiver 1 quasonix, inc. 3.2 thermal it is important that the rdms™ be kept within its specified operating range of -40°c to +70°c. At maximum bit rates, the unit dissipates approximately 20 watts. At normal ambient room temperatures, a small fan blowing across the top cov...

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    Compact rdms tm telemetry receiver 2 quasonix, inc. Position signal description 8 rs 232 tx output rs-232 responses to host controller 9 +28 vdc primary 28 vdc power to module 10 ground secondary power return, 2 amps maximum; internally tied to pins 2, 3, and 6 11 power on power on reset pin; tempor...

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    Compact rdms tm telemetry receiver 3 quasonix, inc. The 70 mhz if output on the second sma connector, labeled “if out”, is provided for troubleshooting purposes. The if is resistively coupled from the input of the demodulator. Therefore, the signal level on the if output should be within 2 db of the...

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    Compact rdms tm telemetry receiver 4 quasonix, inc. 4 operating instructions 4.1 power-on operation when the receiver is powered up, the integral demodulator defaults to a particular modulation mode, which is based on the configuration of the unit. The modulation mode priority is outlined in table 4...

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    Compact rdms tm telemetry receiver 5 quasonix, inc. Parameter name description default value frequency this is the desired frequency of the receiver in mhz. 1450.5 mhz, 1800.5 mhz, or 2370.5 mhz for lower-l band, upper-l band, or s band, respectively 1450.5 mhz for tri band 4675.0 mhz for c band mod...

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    Compact rdms tm telemetry receiver 6 quasonix, inc. For setup and configuration via a standard windows-based pc, quasonix recommends the application called terminal, a flexible, full-featured control interface that is included in the rdms product cd. Otherwise, one can use hyperterminal, included wi...

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    Compact rdms tm telemetry receiver 7 quasonix, inc. 4.3.1 tier 0 (pcm/fm), tier i (soqpsk-tg), and tier ii (multi-h cpm) commands the following table describes all receiver user commands. Listed are the command code, name, description of the command, whether specific options must be ordered or the c...

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    Compact rdms tm telemetry receiver 8 quasonix, inc. Mnemonic name description option (s) required basic or advanced command mode restriction av manual attenuator control report or set the value of the input attenuator valid range is 0 to 124 db examples: av report the input attenuator setting av 0 s...

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    Compact rdms tm telemetry receiver 9 quasonix, inc. Mnemonic name description option (s) required basic or advanced command mode restriction cp clock polarity report or set clock polarity inversion state examples: cp report the clock source state cp 0 set clock inversion off cp 1 set clock inversion...

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    Compact rdms tm telemetry receiver 10 quasonix, inc. Mnemonic name description option (s) required basic or advanced command mode restriction fr frequency report or set receiver center frequency examples: fr report the frequency setting fr 2200.5 set modulation to 2200.5 mhz standard basic none fs i...

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    Compact rdms tm telemetry receiver 11 quasonix, inc. Mnemonic name description option (s) required basic or advanced command mode restriction ld ldpc decode enable enable, disable, or show the current state of the forward error correction (fec) / low density parity check (ldpc) decoder examples: ld ...

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    Compact rdms tm telemetry receiver 12 quasonix, inc. Mnemonic name description option (s) required basic or advanced command mode restriction mi modulation index report or set modulation index tracking or acquire examples mi report mod index track status mi o disable mod index tracking (set to h=0.7...

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    Compact rdms tm telemetry receiver 13 quasonix, inc. Mnemonic name description option (s) required basic or advanced command mode restriction mo modulation report or set modulation setting examples: mo report the modulation setting mo 0 set modulation to pcm/fm mo 1 set modulation to soqpsk-tg mo 2 ...

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    Compact rdms tm telemetry receiver 14 quasonix, inc. Mnemonic name description option (s) required basic or advanced command mode restriction oc output control report or set the channel source values examples: oc show current oc settings oc d set the default outputs oc c s set the channel and clock ...

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    Compact rdms tm telemetry receiver 15 quasonix, inc. Mnemonic name description option (s) required basic or advanced command mode restriction pl input power level reports or sets the current input power level setting examples: pl report the current input power level information tracking state pl 0 s...

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    Compact rdms tm telemetry receiver 16 quasonix, inc. Mnemonic name description option (s) required basic or advanced command mode restriction rn derandomizer state report or set the derandomizer state examples: rn report the derandomizer state rn 0 set the derandomizer off rn 1 set the derandomizer ...

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    Compact rdms tm telemetry receiver 17 quasonix, inc. Mnemonic name description option (s) required basic or advanced command mode restriction sy system status tracking displays the system status of the receiver the first argument specifies the period, in milliseconds, between status updates. Zero (0...

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    Compact rdms tm telemetry receiver 18 quasonix, inc. Mnemonic name description option (s) required basic or advanced command mode restriction to f tape output frequency sets the carrier frequency of the pre-detection complex tape output examples: to f 0 sets the tape output frequency to off (carrier...

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    Compact rdms tm telemetry receiver 19 quasonix, inc. Mnemonic name description option (s) required basic or advanced command mode restriction *vf viterbi forget factor report or set the viterbi forget factor, on a scale from 0.01 – 0.99 examples: vf report the viterbi forget factor vf 0.04 set the v...

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    Compact rdms tm telemetry receiver 20 quasonix, inc. 5 performance specifications 5.1 dc input the compact rdms™ operates from a nominal 28 vdc, +/- 4 vdc with a current consumption of no more than 25 watts. 5.2 rf frequency error by default, the compact rdms™ is capable of acquiring a signal with a...

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    Compact rdms tm telemetry receiver 21 quasonix, inc. 1.E-08 1.E-07 1.E-06 1.E-05 1.E-04 1.E-03 1.E-02 1.E-01 1.E+00 2 3 4 5 6 7 8 9 10 11 12 13 14 eb/n0 (db) tier 0, qsx-dms-111 tier i, qsx-dms-111 tier ii, qsx-dms-111 figure 6: ber performance for tier 0, i, and ii 5.4 synchronization the compact r...

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    Compact rdms tm telemetry receiver 22 quasonix, inc. Figure 7: synchronization time at various signal-to-noise ratios.

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    Compact rdms tm telemetry receiver 23 quasonix, inc. 5.4.1 rf input the compact rdms™ is available in frequency bands shown in table 8. Two additional band codes are described in section 5.4.1.1. The input impedance is 50 ohms. Table 8: band configuration codes p lower l upper l c 200.0 400.0 1150.0...

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    Compact rdms tm telemetry receiver 24 quasonix, inc. 5.4.1.1 additional band codes two additional band codes are available:  band code 7: 70 mhz standard range, 0.5 mhz-20 mhz, 70 mhz extended range  band code t: 2025.0 mhz to 2110.0 mhz standard range.

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    Compact rdms tm telemetry receiver 25 quasonix, inc. 6 if module the receiver’s integrated if filter module, shown in figure 8, includes eight (8) saw filters, ranging in bandwidth from 250 khz to 40 mhz in approximately one octave steps. The standard eight filters are 250 khz, 500 khz, 1 mhz, 2 mhz...

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    Compact rdms tm telemetry receiver 26 quasonix, inc. Figure 9: 70 mhz if module in 2” x 3” chassis saw filter responses, narrow group (10 mhz span).

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    Compact rdms tm telemetry receiver 27 quasonix, inc. Figure 10: saw filter responses, wide group (plotted on 100 mhz span).

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    Compact rdms tm telemetry receiver 28 quasonix, inc. Figure 11: optional saw filter responses for 70 khz to 6 mhz.

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    Compact rdms tm telemetry receiver 29 quasonix, inc. Figure 12: optional saw filter responses for 14 mhz and 28 mhz.

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    Compact rdms tm telemetry receiver 30 quasonix, inc. 7 maintenance instructions the compact rdms™ requires no regular maintenance, and there are no user-serviceable parts inside. Please consult the factory for any maintenance, upgrade, or repair requirements..

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    Compact rdms tm telemetry receiver 31 quasonix, inc. 8 product warranty the compact rdms™ carries a standard parts and labor warranty of one (1) year from the date of delivery..

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    Compact rdms tm telemetry receiver 32 quasonix, inc. 9 technical support and rma requests in the event of a product issue, customers should contact quasonix via phone (1-513-942-1287) or e-mail (support@quasonix.Com) to seek technical support. If quasonix determines that the product issue must be ad...

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    Compact rdms tm telemetry receiver 33 quasonix, inc. 10 appendix a – bit error rate testing there is a separate bert for each data path in the receiver (0 main channel, 1 combiner channel). By default all commands are targeted to the current “tracking channel” (tc command), 0 or 1. If the tracking c...

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    Compact rdms tm telemetry receiver 34 quasonix, inc. Mnemonic name description be [c] t n set bit error measurement type sets bit error measurement type the test type can be configured to run continuously or stop when either a time limit, bit count, or error count has been reached. The error count l...

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    Compact rdms tm telemetry receiver 35 quasonix, inc. Mnemonic name description be [c] m measurement enable starts or stops bit error measurement (toggle command) if a time limit, bit count, or error count limit is set and the limit has been reached (enabled but not running) the bert is restarted. [c...

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    Compact rdms tm telemetry receiver 36 quasonix, inc. The bert can be enabled, but not running, in the case of a time, bit, or error count limit. An asterisk '*' after the error rate column indicates that the data is inverted. If the display is continuous and a time, bit, or error limit is set with r...

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    Compact rdms tm telemetry receiver 37 quasonix, inc. 11 appendix b – pinouts for optional 37 pin connector the optional 37-pin connector provides three sets of clock and data, two high-speed analog outputs, and one low- speed analog output. Pin numbering for the optional connector is shown in figure...

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    Compact rdms tm telemetry receiver 38 quasonix, inc. Position signal description 20 dac ground analog output (gnd) 21 dnc factory use only – do not connect 22 data c - clock and data pairs 23 dnc factory use only – do not connect 24 dnc factory use only – do not connect 25 sdi signal degradation ind...

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    Compact rdms tm telemetry receiver 39 quasonix, inc. 12 appendix c – detailed output control (oc) command settings the output control command, as described in table 6, is used to report or set the channel source values. Note: the state settings use the alpha o, not a number zero (0). Mnemonic name d...

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    Compact rdms tm telemetry receiver 40 quasonix, inc. Mnemonic name description oc c s set channel and source where c is channel: o_0, o_1, o_2, o_3, o_4, o_5, o_6, o_7 where s is source: clk_i0, data_i0, clk_q0, data_q0, clk_i1, data_i1, clk_q1, data_q1, clk_t, data_t, off when the outputs return th...

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    Compact rdms tm telemetry receiver 41 quasonix, inc. 13 appendix d – phase noise compensation 13.1 trellis demodulation basics legacy single-symbol detection:  uses basic limiter-discriminator operation  frequency in this bit above nominal → data = 1  frequency in this bit below nominal → data = ...

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    Compact rdms tm telemetry receiver 42 quasonix, inc. Figure 15: phase trajectory never forgets 13.1.1 trellis demodulation summary the basic premise of trellis demodulation is that the signal from the transmitter follows a known path through the phase tree. When the demodulator knows this, it can us...

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    Compact rdms tm telemetry receiver 43 quasonix, inc. Figure 17: trellis detection gain with significant to severe phase noise 13.2 phase noise impact trellis demodulation is based on the assumption that the signal is following a predictable path through the trellis. If this is not true (due to high ...

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    Compact rdms tm telemetry receiver 44 quasonix, inc. Figure 18: "clean" eye pattern 13.5 know your transmitter if you know the brand and type of transmitter, these tips can help determine when to use pnc. If your transmitter was manufactured by these companies, pnc should be off:  quasonix – guaran...

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    Compact rdms tm telemetry receiver 45 quasonix, inc. 14 appendix e – factory reset values when a reset command is activated, the frequency defaults to the lowest valid frequency for the lowest authorized band on the unit. The reset priority is: 1. Qpsk 2. Pcm/fm 3. Soqpsk 4. Multi-h cpm reset values...

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    Compact rdms tm telemetry receiver 46 quasonix, inc. Table 12: pcm/fm factory reset values parameter reset state bit rate 1 modulation scaling tracking clock polarity normal data polarity normal derandomizer disabled differential decoder n/a if filter auto downconvert antenna disabled agc enabled co...

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    Compact rdms tm telemetry receiver 47 quasonix, inc. Table 13: soqpsk factory reset values parameter reset state bit rate 1 modulation scaling n/a clock polarity normal data polarity normal derandomizer disabled differential decoder enabled if filter auto downconvert antenna disabled agc enabled con...

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    Compact rdms tm telemetry receiver 48 quasonix, inc. Table 14: multi-h cpm factory reset values parameter reset state bit rate 1 modulation scaling n/a clock polarity normal data polarity normal derandomizer disabled differential decoder n/a if filter auto downconvert antenna disabled agc enabled co...

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    Compact rdms tm telemetry receiver 49 quasonix, inc. 15 appendix f – acronym list acronym description agc automatic gain control am amplitude modulation aqpsk variant of quadrature phase shift keying artm advanced range telemetry auqpsk variant of quadrature phase shift keying ber bit error rate bnc...

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    Compact rdms tm telemetry receiver 50 quasonix, inc. Acronym description psk phase shift keying qpsk offset quadrature phase shift keying rdms receiver demodulator synchronizer rf radio frequency rj-45 ethernet connection jack rm rack mount rrc remote rdms client rs-232 recommended standard 232 (ser...