Description: Tonna Electronics 950025 UHF QAM Modulator, UHF (470 - 862 MHz) - Digital Video Broadcasting, Quadrature Amplitude Modulation Comes with what you see in the pictures. If you don't see it, you probably won't get it. Specifications are from Tonna and may vary slightly due to upgrades, options, or revisions this unit may or may not have. These units are new in the factory box. They may have minor blemishes. The units are set at 230 V, 50 Hz so please make note of that. The units can be set to 120 VAC, 60 Hz operation with an internal jumper. Common Specifications: Compatible with normalized cabinets (19" - 1U rack) Entirely frequency agile at output High nominal output level DVB compliant This includes: One parallel interface for MPEG 2 One I.F. output for test and measurements One symbol rate clock output for test and measurements One 10 MHz clock output One R.F. output One R.F. test output at -50 dB typical One 100 - 120 VAC / 200 - 240 VAC power supply input 47-63 Hz They are equipped with a microcontroller and all of those following parameters are programmable in local mode size push-buttons and a LCD display: Frequency output increment 125 kHz step (or 62.5 kHz, as an option - this option is installed) R.F. output level adjustment Output signal inhibition Nyquist filter choice (half, or full Nyquist) Modulation choice (16, 32, 64 QAM, 128, 256) - RF Characteristics not guaranteed for 128 and 256 QAM installations RF spectrum inversion The forward error correction and modulation processing is DVB compliant. It Includes: The inversion of the MPEG sync word every eight sync words Energy dispersal Reed Solomon encoder, followed by a convolutional interleaver Differential encoding on most significant bits Nyquist filtering before modulation In order to enable modulation at different symbol rate without components change, a x/sinx compensation of digital to analog converter is integrated in the 1/2 Nyquist digital filter: The R.F. output level is tunable from 0 to -13 dB referred with the nominal output level. The R.F. output signal can be switched off by an inhibition control. Baseband Electrical Specifications: Symbol rate: 5.5 Minimum, 7 Maximum Mbaud Nyquist roll-off: 0.15 typical Intersymbol interference FIR (Finit Impulse Rate) for 1/2 Nyquist: 3% Intersymbol interference FIR for full Nyquist: 2% (with x/sinx compensation) Sampling frequency of FIR Nyquist: 4 x Symbol Rate MHz (with x/sinx compensation) I and Q delay mismatch: 2 ns Quantization of I and Q on output filter: 10 bits Modular Specifications at I.F.: I.F. frequency: 36 MHz typical Phase noise: -110 dBc/Hz at 100 kHz I.F. output level: -10 dBm typical Single side band rejection of IQ modulator: -30 dBc min. -35 dBc typical (injection of 2 signals in quadrature) Out of band rejection: 43 dB minimum Spectrum density power variation: ±0.5 dB R.F. Specifications: Output frequency: 470-862 MHz typical (center frequency of the channel, fo) Nominal output level: +4 dBm max. in an 8 MHz BW Output level adjustment: -13 dB Min. to 0 dB Max. (from 0 to -10 dB, step <1 dB) Output level stability (5 to 45°C): ±1.5 dB reference 0 dB at 25°C Frequency step on output frequency: 125 kHz typical Output frequency accuracy: ±5 kHz typical. ±10 kHz maximum Spectral channel bandwidth: 1.15 SR MHz typical. 8 MHz Maximum Spectrum density power variation: ±0.5 dB typical. ±1 dB Maximum Group delay variation in the channel: 10 ns typical. 15 ns maximum Phase noise at 10 kHz: -80 dBc/Hz minimum. -88 dBc/Hz typical. Phase noise at 100 kHz: -100 dBc/Hz minimum. -110 dBc/Hz typical. Output impedance: 75 ohms Return loss in output filter bandwidth: 10 dB minimum, 14 dB typical Spurious rejection (120 to 862 MHz): 55 dB minimum. 60 dB typical. Noise for [fo-f] > 48 MHz: -76 dBm minimum. -80 dBm typical in 1 MHz. (at power output: +1 dBm) EMC conformity: EN 50083-2 LVDS Parallel Interface Specifications: Connector: SUB-D 25 female MPEG2 frame length: 188 or 204 bytes typical Nominal impedance: 110 ohms typical Synchronization clock (HE): 2.75 minimum to 6.5625 MHz maximum. (Frame length: 204 bytes) Data [0 - 7]: LVDS DEN: LVDS Synchro Byte: LVDS Rate: 2.75 minimum Mbits to 6.5625 Mbits maximum For Domestic Customers: Packaging, handling, and order processing included in shipping in all domestic shipments as quoted by the shipping calculator. For International Customers there is a $10.00 minimum for packaging, handling, and order processing. International shipping to be determined by destination. Prior to shipment I will need to know the following information (filled out on a form that I will send you) for International Customers or Packages/Freight being Forwarded internationally. International customers may also be subject to a freight forwarder form if applicable.: (1) Are you the end-user of this item? (2) If you are not the ultimate end-user of the item, please state the ultimate end user's name. (3) What is the ultimate country destination? 03/13/24
Price: 499.99 USD
Location: Phoenix, Arizona
End Time: 2025-01-13T21:15:33.000Z
Shipping Cost: N/A USD
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Item Specifics
All returns accepted: ReturnsNotAccepted
Brand: Tonna Electronics
Custom Bundle: No
Model: 950025
MPN: 950025
Country/Region of Manufacture: United States
Modified Item: No
