LYNX

Professional FM Tuner

The quality and accuracy of a Broadcast Digital FM Tuner

Lynx is an evolved Broadcast Digital FM Tuner, designed for receiving, monitoring and listen to FM radio signals. The built in web interface allow multiple users to display all the parameters and details of the incoming signal. The tuned audio frequency is available on the analog balanced output (XLR), on the digital output AES/EBU (XLR), on the headphone output and via IP streaming. At the same time. The quality and accuracy of the built-in tuner allow a very strict analysis of the tuned frequency, modulation and the RDS data decoding.

FM Synthonizer Lynx AxelTech
FM Synthonizer Lynx AxelTech

Main Features

  • Real time measurement
  • High quality tuner
  • Signal analysis of: RF, MPX, AUDIO and RDS
  • Built in web server for remote acces
  • Decoder RDS with complete data decoding
  • Double ports for Net connection
  • Analog balanced output and AES/EBU on XLR
  • High shielded against strong RF fields

The Lynx’s display always shows all the following parameters:

Receiving:

  • RF Level incoming
  • Multipath
  • Carrier Offset

The front panel control:

  • IP Ethernet port
  • Digital and Analog level output
  • Time and treshold alarm
  • Headphone level

The led panel displays the receiving status:

  • Tuned
  • Stereo
  • RDS
  • 3 different alarms: Low RD, Low Audio and RDS Errors.

Deviation:


  • MPX
  • Audio
  • Pilot and RDS

Decoding RDS:

  • PS
  • PI
  • BLER
  • TA
  • TP
  • MS
  • DI
  • PTY / PTYN
  • AF Presence
  • RT / RT+
  • TMC

The built in web server allows to preview the following details:

Receiving:

  • RF Level incoming
  • Carrier Offset
  • Multipath
  • Adjacent Channel
  • Alternative Channel

Audio parameter decodified:


  •  L/R RMS
  • 
L/R peak
  • Imnbalance
  • 
Mono
  • MPX Power
  • Audio spectrum streaming received.

Presence of services of:

  • CT
  • AF
  • RT
  • RT+
  • TMX
  • EON
  • IH
  • LA
  • EG
  • ILS
  • LSN

Deviation:


  • MPX
  • 
Audio
  • Pilot
  • 
RDS

RDS Decoding:

  • PS
  • RT
  • PI
  • EON
  • BLER
  • CT
  • TP
  • TA
  • MS
  • DI
  • PTY
  • PTYN
  • PIN
  • transmitted groups

List of all the alternative frequency, up to a 64 lists, A/B list and REG check. Preview of EON data.Page welcome to RDS statistic analysis and decoding of the RDS flux with the possibility of download for a better analysis.

Technical Specifications

PARAMETERSDESCRIPTION
Main Power100 Vac - 240 Vac 50/60 Hz internal, universal power supply
Power consumption25 W
Power connectorIEC plug filter with internal fuse 2.0 AT
HeadphonesStereo Jack 6.3 mm
Safety and EMCCompliant to CE laws
Working temperature0° to 50° C (storage -5 to + 50 °C)
Housing dimensions19 inch x 1u x 240 mm (depth)
Weight3.5 kg
RF TUNERS
Tuner frequency87.5 MHz ‐ 108.0 MHz
Tuner step10 kHz
RF tuning stability+/- 500 Hz
RF input sensitivity20 to 120 dBµV
RF input nominal level80 to 100 dBµV
RF inputs main1x BNC, with 50 Ohm unbalanced
Max frequency deviation125 kHz
IF filter bandwidth34 kHz to 138 kHz – Manual or automatic
Input RF level30 dBµV – 120 dBµV with internal attenuator
Selectivity at ± 120 kHz> -3 dB
Selectivity at ± 200 kHz> -40 dB
Selectivity at ± 300 kHz>- 50 dB
Selectivity at ± 400 kHz>-65 dB
Image rejection @ 22.5 kHz70 dB
Adjacent channel rejection63 - 65 dB
Alternate channel rejection65 - 72 dB
THD @ dev=75 kHz0.05 – 0.1 %
Mono (S+N)/N75 dB typ – 68 dB min (No A-Weighting 30 Hz – 15 kHz)
STEREO DECODERS
Stereo (S+N)/N
61 dB Stereo/61 dB mono @ 40 dBµV
65 dB Stereo @ 50 dBµV
80 dB Stereo @ 70 dBµV
Pilot 19kHz suppression55 dB (Stereo modulation L = 1, R = 0,Deviation=67.5 kHz, Pilot deviation=6.75 kHz)
Stereo THD + NMeasures @ 70 dBuV with 75 kHz deviation
100 Hz - 0.055 %
1 kHz - 0.061 %
5 kHz - 0.19 %
10 kHz - 0.46 %
Stereo separation45 dB (Stereo modulation L = 1, R = 0,Deviation=67.5 kHz, Pilot deviation=6.75 kHz)

48 dB @ 400 Hz
48 dB @ 1 kHz
48 dB @ 5 kHz
38 dB @ 10 kHz
38 dB @ 14.7 kHz
RDS DECODER
RDS sensitivity20 dBµV (dev f = 2 kHz, RDS BLER < 5%)
RDS synchronization time80 ms (dev f = 2 kHz RF input = 60 dBµV)
RDS PI lock time100 ms (dev f = 2 kHz RF input = 60 dBµV)
RDS data decoding and streamingRDS level indication and deviation (voltage, kHz and dBr)
RDS data decoding servicesPS, PI, M/S, DI, TP, TA, AF, AF List Presence A/B Method, Scrolling PS, AF EON, Radio Text, Radio Text Plus, CT, PTY, PIN, IH, TMC, EWS, TDC. ODA generic services. RDS error detection with three shold adjustable
RF MEASUREMENT MODULERanges – Resolution - Precision
RF Level0 – 80 dBµV (resolution 1 dBµV, precision 2 dBµV)
82 – 120 dBµV (resolution 2 dBµV, precision 5 dBµV)
Deviation0-125 kHz (resolution 1 kHz, precision 2 kHz)
Tuned carrier frequency offset0-250 ppm (resolution 2 ppm, precision 5 ppm)
Multipath0-100 %
Adjacent channel RF level0 – 80 dBµV (resolution 1 dBµV, precision 2 dBµV) (+-200kHz)
MPX MEASUREMENT MODULERanges - Resolution - Precision
Pilot level0-20 kHz (resolution 0.1 kHz, precision 0.2 kHz)
Rds level0-20 kHz (resolution 0.1 kHz, precision 0.2 kHz)
Mpx power ITU-R-BS412 (Estimated)-20 dBr to + 12 dBr (resolution 0.1 dBr, precision 0.5 dBr)
StereoValid Stereo signal detector
AUDIO MEASUREMENT MODULERanges – Resolution – Precision
Left Quasi PeakProgrammable attack time from 0 mS to 2 mS (Resolution 0.1 dB)
Right quasi peakProgrammable attack time from 0 mS to 2 mS (resolution 0.1 dB)
Audio silenceThreshold - 80 dB to 0 dB, Time: 1-120 Sec
Unbalanced stereo signalThreshold - 80 dB to 0 dB, Time: 1-120 Sec
AUDIO OUTPUT
Available output on XLRTuner - 1 or Tuner - 2, definable via web page. Same audio on analog and AES/EBU
Audio frequency response30 Hz - 15 kHz, ± 0,3 dB
Phones (Front panel)Stereo jack 6.3 mm, 150 Ohm, 0.8 W
ANALOG OUTPUT MODULE
D/A Conversion24bit Sigma - Delta conversion - 32 kHz Sample rate
Connectors2x XLR, male - Electronically balanced
Output level-12.0 dBu to +14.0 dBu (0.1 dBu Step) - Max (+20 dBu)
Impedance Source47 Ω
Load impedance600 Ω or greater
DistortionLess than 0.02% TDH + Noise (0.0dBu @ 1Khz)
Dynamic range108 dB (110 dB A-weighted, 20Hz - 15kHz)
SourcesStreamer1_Source , Streamer2_Source
DIGITAL OUTPUT MODULE
Connectors:XLR, Male - Electronically balanced
FormatAES3/EBU
Sample rates32 kHz
Resolution24 bits
Operative nominal level:From 0.0 dBFs to - 24dBFs (0.1 dBu step)
Dynamic range:125 dB (Typ), 122 dB (Min)
Distortionless than 0.01% TDH+NOISE (-20dBFs @ 1Khz)
Freq. response20Hz -15kHz
Dynamic range108 dB
SourcesStreamer1_Source , Streamer2_Source
AUDIO INPUT
AUDIO STREAMING MODULE
ProtocolsTCP/IP, IceCast2
EncodersOGG - VORBIS
InterfaceEthernet port 10/100 Mb/s
BitrateUser select 24 kbps to 192 kbps
Sample rates32Ksamples/sec

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