Share on:  

Digital television requires significantly fewer measurement parameters to evaluate the quality of the transmitter output signal; Broadcasters and Network Operators are increasingly interested in knowing the real performance of terrestrial DTT networks, critical especially after the introduction of SFN transmission. The DGQoS DQM series of probes allows operators to accurately verify the quality of signals received in viewers' homes emulating the reception quality of settop boxes and TVset.

DQM130 is the ideal probe to have a 24/7 control of the Quality of Service for DTT networks; very compact (just 1 RU 19”), it embeds DVB-T/ T2 (and very soon ISDB-Tb) demodulator and TS analyzer according to TR 101.290 (priority 1,2 and 3). It accepts also ASI input (for distribution network equipment monitoring, such as microwave links, satellite receivers and fiber optic terminals) and, if equipped with internal MPEG-2/MPEG-4 HD decoder, provides confidence audio and video streaming, single service or full Transport Steam over IP.

Even RF parameters, such as RF level, MER, constellation, echo pattern and MER(K), are continuously monitored, allowing operators to immediately identify problems in the transmission network, reducing black-out time. The DQM130 can be configured and monitored through local user interface (display/keypad) or remotely through web interface and SNMP (for integration with NMS).

Main Features:


  • RF measurements with a very wide dynamic range (-85 to +10dBm)
  • Suited for onsite and territorial monitoring
  • Automatic DVB-T and DVB-T2 detection
  • Up to 16 different channels in scan mode
  • Real time mode available
  • MIP monitoring for SFN networks
  • Echo pattern display and alarm masking for both DVB-T and T2
  • Constellation display
  • Spectrum display
  • Template alarms for each channel (all TPS parameters including cell ID)
  • Template function for TS parameters (detects TS content change)
  • Data rate monitoring for each service and PID with long term and peak evaluation.
  • Video and audio confidence streaming at low bitrate or entire service or TS over Ethernet.


  • NMS or direct web based monitoring
  • Easy to use web interface for both setup and measurements
  • SNMP v2 for use with NMS systems
  • Sequencing mode with up to 16 user definable channels.


  • Remote firmware upgrade
  • Great quality/price ratio
Available download(s):

Data Sheet

[ ~ 194.77 KB]
(MD5: 9356FABDA4788FACDD95212558E6C03F)

Disclaimer: DGQoS S.r.l. assumes no responsibility for errors or ommissions in the documentation available from its web site(s). All files have been scanned for viruses prior to uploading them to this server. In no event shall DGQoS S.r.l. be liable to you or any third parties for any special, punitive, incidental, indirect or consequential damages of any kind, or any damages whatsoever, including, without limitation, those resulting from loss of use, data or profits, whether or not DGQoS S.r.l. has been advised of the possibility of such damages, and on any theory of liability, arising out of or in connection with the use of the above files. The use of the files downloaded through the DGQoS S.r.l.' site(s) is done at your own discretion and risk and with agreement that you will be solely responsible for any damage to your computer system or loss of data that results from such activities. No advice or information, whether oral or written, obtained by you from DGQoS S.r.l. or from the DGQoS S.r.l. web site(s) shall create any warranty for the files.

MD5 hash check: to check the integrity of the above files You might consider using this Third Party freeware softwares:
OS: Win* | Software/utility: HashOnClick
OS: *nix | Software/utility: open a terminal and type md5sum file_name.extension
OS: Mac OS X | Software/utility: open a terminal and type md5 file_name.extension