Blonder Tongue – AQT8-IP – ATSC/QAM Transcoder

  • Accepts 8 RF inputs in 8VSB/QAM format
  • Supports up to 20 programs on each input and 20 programs (total) on the 8 IP outputs.
  • In-service monitoring of a selected input and output
  • An IP output can be sent to the front panel ASI for in-service monitoring of a selected output
  • A -20 dB QAM RF test connector is provided on the front panel to monitor the units output


AQT8-QAM/IP Transcoder allows the user to create a line up from off-air and/or cable feeds for coax or IP distribution. The unit simultaneously transcodes up to eight (8) QAM/8VSB input channels to QAM (up to 8) and IP (up to 8) transport streams. When the QAM output selection is “Default RF” (Section 6.8, #5), the pass thru QAM outputs contain all programs (major and minor channels) residing in their respective input channel sources. The following MPEG-2 tables are maintained: PAT; PMT; PSIP; VCT; EIT and ETT. Alternately if “IP Default” or “IP#” output is selected, the QAM output will contain all programs (major and minor channels) and tables residing in the source IP stream.

The customizable IP output contains up to 20 programs with a combination of SPTS and/or MPTS across eight (8) IP addresses. MPEG-2 tables associated with each of the selected input programs (PAT, PMT, PSIP, VCT and MGT) are transferred to the IP outputs. This means the virtual channel numbers and program names on the IP outputs ca n be the same as their RF program input sources and the QAM output. Additionally, the AQT8 gives the user the ability to change the PID, Program
#, Short Name, Major Ch., and Minor Ch. information to provide a customized IP or coax cable delivery solution.

The AQT8-QAM/IP features Emergency Alert System (EAS) program switching through either an ASI or IP format EAS input and terminal block contacts for triggering. EAS messaging is available on the IP and QAM outputs when the QAM Output Mode is set to “Default IP” or “IP#”. There will be no EAS messaging on the QAM output channels when in the “RF Default” mode.

Comprehensive remote monitoring and control is accomplished using any standard Web browser via a rear-panel 10/100Base-T Ethernet connection.

  • PSIP manipulation for SPTS
  • Performs IP network de-jitter, PCR (Program Clock Reference) replacement, null packet insertion and deletion
  • Supports RTP/UDP protocols
  • Supports ARP, IGMPv2, and ICMP protocols
  • Supports EAS switching-based on contact closure trigger or +5 to +12 VDC input
  • Provides comprehensive GUI-based monitoring and control via standard Web Browsers
Open Spec Sheet