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Professional Satellite Modulator (DVBS, DVBS-2)

The ZMOD-X1 modulator series is an all inclusive unit that is loaded with features most needed by broadcasters. In it's most basic form, the unit comes with DVBS (QPSK), DVBS2 (QPSK and 8 PSK) modulation schemes, IF output, L-band output and ASI & IP input all as standard features. 16 and 32 APSK modulation are provided as options. Taking mobile and portable systems in mind, the unit comes with clear and user friendly front panel control. Size and weight are significantly less than any unit on the market. The unit can also be monitored and controlled using any web browser.


  • DVBS-QPSK/DVBS2 (QPSK, 8 PSK) standard.
  • Clear and user-friendly front panel control.
  • Front panel monitor port.
  • Only 10" deep and weighs 4.5lbs.
  • Rear panel Ethernet port for user interface.



Signal Format CCM (VCM/ACM optional for DVB-S2)
Modulation Format & FEC Rate
DVB-S DVB-S QPSK, FEC rates 1/2, 2/3, 3/4, 5/6, 7/8
DVB-SNG 8PSK, FEC rates 2/3, 5/6, 8/9
DVB-S2 QPSK, FEC rates 1/4,1/3, 2/5, 1/2, 3/5, 2/3, 4/5, 3/4, 5/6, 8/9, 9/10
8PSK, FEC rates 3/5, 2/3, 3/4, 5/6, 8/9, 9/10
16APSK (Optional), FEC rates 2/3, 3/4, 4/5, 5/6, 8/9, 9/10
32APSK (Optional), FEC rates 3/4, 4/5, 5/6, 8/9, 9/10
Roll Off Factor
DVB-S 0.1 to 0.5
DVB-S2 0.2, 0.25, 0.35


Min Symbol Rate 100 kBaud
Max Symbol Rate 30 Mbaud (45 MBaud optional)
Min Symbol Rate Step 1 Baud
User Packet Size 188 bytes

IF/L - Band Interface

L-band Output 950 - 1750MHz (L-band), 1Hz Step
50Ω SMA-Female, +5 to -25 dBm
IF Output 50 - 90MHz (70MHz IF), 1Hz Step
105 - 175MHz (140MHz IF), 1Hz Step
75Ω BNC-Female, +5 to -30 dBm
Output Power Step 0.1dB
Output Power Stability ±0.5dB
Output Power Accuracy ±0.5dB
Monitor Output 50Ω BNC-Female L-band, 950-1750MHz (when L-band output selected) -30dB, ±dB
Return Loss Minimum 14dB
Spurious -60 dBc in any 4kHz bandwidth
Phase Noise 100Hz, -80 dBc/Hz
1kHz, -85 dBc/Hz
10kHz, -85dBc/Hz
100kHz, -100 dBc, Hz
1MHz, -110 dBc/Hz

Input Interfaces

DVB-ASI 1 for either DVB-S or DVB-S2 (75Ω BNC)
Ethernet 10/100 Base-T, rear panel
10MHz Frequency Connector: 50 Ω BNC-Female
Power Male IEC 320, 100-120V AC, 220-240V AC auto-ranging, 50-60Hz
Maximum consumption 75 watts

Control Interfaces

SNMP SNMPv2, Accessed over Ethernet physical interface for control using Evertz VistaLINK® or 3rd party SNMP systems.
Web Interface Accessed over the Ethernet physical interface.
Alarms Complete suite of parameters monitored.
Access via GUI or SNMP, Comprehensive alarm history. Alarm relay contact - DB9 sockets


Size 19"W, 1U (1.75")H, 11"D, deep, EIA standard 19" rack mountable
Weight 4.5lbs


Operating Temperature 0° to 50°C
Storage Temperature -10°C to 55°C
Humidity, Operating 10% to 80% relative humidity non condensing
Electromagnetic EN 61000-1, EN 61000-6-3
Compatibility FCC Title 47, Part 15
Safety EN 61010-1
UL 61010-1

Ordering Information

ZMOD-X1 DVB-S/S2 modulator, 8PSK 30 MBaud max, IP and ASI input, L-Band and IF output
ZMOD-X1-45 DVB-S/S2 modulator, 8PSK 45 MBaud max, IP and ASI input, L-Band and IF output

Ordering Options

Please consult Evertz for other options as needed including 16APSK, 32APSK and VCM/ACM.