; Sample configuration file for ODR-DabMod [remotecontrol] ; enable the telnet remote control on localhost:2121 ; Since this is totally unsecure telnet, the software ; will only listen on the local loopback interface. ; To get secure remote access, use SSH port forwarding telnet=1 telnetport=2121 ; Enable zmq remote control. ; The zmq remote control is intended for machine-to-machine ; integration and requires that ODR-DabMod is built with zmq support. ; The zmq remote control may run in parallel with Telnet. ; ; Protocol: ; ODR-DabMod binds a zmq rep socket so clients must connect ; using either req or dealer socket. ; [] denotes message part as zmq multi-part message are used for delimitation. ; All message parts are utf-8 encoded strings and match the Telnet command set. ; Explicit codes are denoted with "". ; The following commands are supported: ; REQ: ["ping"] ; REP: ["ok"] ; ; REQ: ["list"] ; REP: ["ok"][module name][module name]... ; ; REQ: ["show"][module name] ; REP: ["ok"][parameter: value][parameter: value]... ; ; REQ: ["get"][module name][parameter] ; REP: [value] _OR_ ["fail"][error description] ; ; REQ: ["set"][module name][parameter][value] ; REP: ["ok"] _OR_ ["fail"][error description] zmqctrl=0 zmqctrlendpoint=tcp://127.0.0.1:9400 [log] ; Write to a logfile or to syslog. ; Setting filename to stderr is very useful during tests and development syslog=0 filelog=1 filename=/dev/stderr [input] ; A file or fifo input is using transport=file transport=file source=/dev/stdin ; When the end of file is reached, it is possible to rewind it loop=0 ; EDI input. ; Listen for EDI data on a given UDP port ;transport=edi ;source=udp://:12002 ; Maximum delay in milliseconds that the EDI input is willing to wait ; before it timeouts ;edi_max_delay=240 ; No support yet for multicast, should work with and without PFT ; This EDI implementation does not support EDI Packet Resend ; When recieving data using ZeroMQ, the source is the URI to be used ;transport=zeromq ;source=tcp://localhost:8080 ; The option max_frames_queued defines the maximum number of ETI frames ; that can be in the input queue ;max_frames_queued=100 ; ETI-over-TCP example: ;transport=tcp ;source=localhost:9200 [modulator] ; Mode 'fix' uses a fixed factor and is really not recommended. It is more ; useful on an academic perspective for people trying to understand the DAB ; modulation. ; ; Mode 'max' is the normalization of every OFDM symbol. No overshoot, no ; truncating, but varying output power (around 3dB) which might not be the best ; for some power amplifier. The output samples are limited to a magnitude ; of 32768. ; ; Mode 'var' uses the method specified in ETSI 300 798 Clause 5.3. This method ; normalizes to 4 times the standard deviation for an approximation of the RMS ; power. So around 6/100000 samples will be truncated and will introduce some ; really minor distortion. But this mode also maximizes the output power. This ; is the gain mode recommended for real world operation as it is based on a DAB ; standard; the only difference is that ODR-DabMod internally calculates this with ; 32-bit floats instead of 8 bits. gainmode=var ; ; In mode var, you can choose to normalise the samples to something else than ; 4 times the standard deviation. ;normalise_variance=4 ; Transmission mode ; If not defined, take the mode from ETI ;mode=2 ; The digital gain is a value that is multiplied to each sample. It is used ; to tune the chain to make sure that no non-linearities appear up to the ; USRP daughterboard programmable gain amplifier (PGA). ; If there is clipping, the spectral quality of the signal will quickly deteriorate, ; and wide-band noise will be generated. ; ; Be aware that there is a dependency with resampling. digital_gain=0.8 ; Output sample rate. Values other than 2048000 enable ; resampling. ; Warning! digital_gain settings are different if resampling ; is enabled or not ! rate=2048000 ; CIC equaliser for USRP1 and USRP2 ; Set to 0 to disable CicEqualiser ; when set to 400000000, an additional USRP2 check is enabled. ; See DabModulator.cpp line 186 dac_clk_rate=0 ; The USRP1 does not have flexible clocking, you will need ;rate=3200000 ; and ;dac_clk_rate=128000000 [firfilter] ; The FIR Filter can be used to create a better spectral quality. enabled=1 ; The filter taps can be calculated with the python script ; doc/fir-filter/generate-filter.py ; If filtertapsfile is not given, the default taps are used. ;filtertapsfile=simple_taps.txt [poly] ;Predistortion using memoryless polynom enabled=1 polycoeffile=polyCoefs ;eg: ;echo "8 ;0.1 ;0 ;0 ;0 ;0 ;0 ;0 ;0" > polyCoefs [output] ; choose output: possible values: uhd, file, zmq, soapysdr output=uhd [fileoutput] ; Two output formats are supported: In the default mode, ; the file output writes I/Q float values (i.e. complex ; float) to the file. The I and Q samples can take values up ; to 810000 in absolute magnitude with gainmode FIX. With ; gainmode VAR and FIX, they should never exceed 50000. ;format=complexf ; ; When the format is set to complexf_normalised the maximal ; amplitude written to a file, is the digital gain +-10%. ;format=complexf_normalised ; ; When the format is set to s8, the output writes I/Q 8-bit ; signed integers, where the magnitude is multiplied by 128/50000 ; effectively mapping the gainmode VAR range of -50000 -- 50000 ; to -128 -- 128. For other gainmodes, use the digital_gain setting ; to make sure you don't create clipping. ;format=s8 ; The output file: filename=/dev/stdout [uhdoutput] ; The UHD output can be directly used with the Ettus USRP devices ; ; You have to set master_clock_rate to a multiple of the ; sample_rate. Ideally, it should be ; master_clock_rate = 4 * sample_rate ; or even a higher factor. ; ; Settings for a USRP B100: device= ; you can put additional UHD device settings here master_clock_rate=32768000 type=b100 txgain=2.0 ; Try first with small gain values ; Also set rate to 2048000 ; For the B200 ; More information and measurements available on: ; http://wiki.opendigitalradio.org/index.php/USRP_B200_Measurements ; ; Settings: ;device= ;master_clock_rate=32768000 ;type=b200 ;txgain=40 ; The B200 needs larger gains (up to 89dB) but, ; "Gain settings are application specific, but it is recommended that users ; consider using at least half of the available gain to get reasonable dynamic ; range." ; From the B200 User Manual ; http://files.ettus.com/uhd_docs/manual/html/usrp_b200.html ; For the USRP1 ;device= ;type=usrp1 ; the usrp1 can have two daughterboards, the subdevice parameter allows you ; to choose which one to use ;subdevice=A:0 ; The USRP1 doesn't support master_clock_rate, you need to enable resamping ; You must specify either frequency or channel, but not both. ;frequency=234208000 channel=13C ; Some USRP boards/frontends support setting an LO offset that has the ; effect of shifting DC out of the signal bandwidth. This should also ; improve IQ imbalance effects, because the mirror will centered on another ; frequency (it should be on frequency + 2*lo_offset) ; ; The value can be negative, and its absolute value must be smaller than ; master_clock_rate/2. ;lo_offset=2048000 ; The reference clock to use. The gpsdo is the ODR LEA-M8F board, the ; official Ettus GPSDO is selected with gpsdo-ettus ; possible values : internal, external, MIMO, gpsdo, gpsdo-ettus refclk_source=internal ; The reference one pulse-per second to use ; possible values : none, external, MIMO, gpsdo pps_source=none ; Behaviour when external clock reference lock lost ; possible values: ignore, crash behaviour_refclk_lock_lost=ignore ; The maximum accepted holdover time for the gpsdo. ; Valid only if the refclk and pps_source are set to gpsdo. ; This value is also used for the initial lock check, and must ; be at least a minute so that the GPSOD has enough time to lock ; and to start disciplining its oscillator. ; Units: seconds ; Set to 0 to disable holdover check ; default value: 0 max_gps_holdover_time=600 ; section defining ZeroMQ output properties [zmqoutput] ; on which port to listen for connections ; please see the Transports section in man zmq ; for more informat io the syntax listen=tcp://*:54001 ; what ZMQ socket type to use. Valid values: PUB, REP ; Please see man zmq_socket for documentation socket_type=pub ; section defining the SoapySDR output settings. All these ; options are given to the SoapySDR library. [soapyoutput] device= master_clock_rate=32768000 txgain=40 ;frequency=234208000 channel=13C ; Used for SFN with the UHD output [delaymanagement] ; Enable handling of timestamps for SFN synchronous=0 ; Whether to mute the TX when incoming frames have no timestamp mutenotimestamps=0 ; This offset is added to the TIST, and the sum defines the ; TX time of the transmission frame. It can by changed at runtime ; through the remote control. offset=0.002 ; The previous static vs dynamic offset distinction, and reading the ; modulatoroffset from a file has been removed. [tii] ; (experimental) ; If these options are set, TII transmission is enabled. ; DAB modes I and II are supported, and must be set explicitly in ; this file. Reading DAB mode from ETI is not supported. enable=0 comb=16 pattern=3 ; There are two variants of TII being used. The old variant that uses the wrong ; phase on the second carrier in each carrier pairs and is therefore not ; conforming to the specification. Modern analysers can decode both variants, ; while others, like the Philips DAB752 and the VAD v2 monitor are known to ; decode only the old non-conforming variant. old_variant=0