1. (I) HDE-2H-QAM
Input: 2x HDMI & 2x YPbPr
Output: 1x QAM
(II) HDE-2C-QAM
Input: 2x YPbPr
Output: 1x QAM
Rev: 100924-04
© 2010 Blonder Tongue Laboratories, Inc. All rights reserved. Specifications and features are subject to change without notice. Trademarks are the property of their respective owner.

2. Description
HDE-2H-QAM (HD Encoder – 2x HDMI/YPbPr-to-QAM) accepts & auto-detects up to two (2) inputs in
unencrypted HDMI[1] and YPbPr (Component) formats. The encoder, when applicable, digitizes & MPEG-2 encodes
each input into a high-definition stream (HD-1080i/720p), and then multiplexes the resulting two (2) streams into
one (1) output in QAM format in the 5.75-864 MHz range (CATV channels T7-T14 and 2-135).
Any combination of input multiplexing is allowed, for example, 2x HDMI or 1xHDMI + 1x YPbPr .
HD/SD MPEG-2 Encoding
Dolby AC-3 Audio Encoding
(2 Programs)
HDE-2C-QAM (HD Encoder – 2x YPbPr-to-QAM) is identical to HDE-2H-QAM, but it does not support the HDMI
input. It accepts only two (2) inputs in YPbPr (Component) format.
[1] The encoder does not accept HDCP-encrypted HDMI input.
Blonder Tongue Laboratories, Inc. 1.800.523.6049 www.blondertongue.com Slide # 2

3. Front Panel
Comprehensive remote monitoring/control is
accomplished using any standard Web browser via
this 10/100BaseT Ethernet interface Encoder LED
QAM RF Test Interface
allows monitoring/testing of Video & Audio LEDs
the QAM output without For input 1 & 2
service interruption
Power
Ancillary LED
ASI Output
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Blonder Tongue Laboratories, Inc. 1.800.523.6049 www.blondertongue.com Slide # 3

4. Rear Panel
EAS Control EAS Input
Triggered from the Video/Audio from
EAS Generator EAS Generator YPbPr #1 & 2
Supports Analog
& Digital Audio[1]
ASI
Loop
Clear HDMI
No HDCP
1x QAM
(2 Programs) HDMI #1 & 2
Agile 5.75 to 864 MHz Supports CC[2]
+60 dBmV
Supports sub-band output
CATV channels T7-T14 [1] The encoder accepts both analog and digital audio inputs. If both inputs are present, the encoder will
process the analog as the primary audio source - the digital will become the secondary audio source.
[2] The encoder accepts analog NTSC Closed Captioning (EIA-608, also known as Line 21) from the HDMI
source, digitizes and then inserts it in the MPEG-2 Transport Stream. The encoder does not support
EIA-708 caption protocol.
Blonder Tongue Laboratories, Inc. 1.800.523.6049 www.blondertongue.com Slide # 4

5. Features
• Digitizes, encodes, and multiplexes up to two (2) unencrypted HDMI and/or YPbPr inputs into one digital
QAM output
• Provides sub-band QAM output channels T7-T14 suitable for digital return-path applications
• Compatible with NTSC analog format, and ITU Annex A & B digital QAM formats
• Comprehensive GUI-based monitoring and control menu via Web browser
• Real-time Dolby Digital (AC-3) audio encoding
• Provides a front-panel ancillary ASI output
• Supports EIA-608 Closed Captioning
• Supports QAM 1024 Modulation
• Supports PSIP configuration
• Equipped with EAS interface
Blonder Tongue Laboratories, Inc. 1.800.523.6049 www.blondertongue.com Slide # 5

6. Typical Application (2x HDMI)
Satellite
Receiver #2
Satellite
Receiver #1
Clear Closed Clear
Captioning
HDMI #1 EIA-608 (line 21) HDMI #2
(No HDCP) (No HDCP)
2 programs
on Virtual channels
40.3 & 70.12
Supports PSIP configuration
1x QAM User can configure RF output channel 55 to be
Output set to displayed on virtual channels 40.3 and 70.15
RF Channel 55
Blonder Tongue Laboratories, Inc. 1.800.523.6049 www.blondertongue.com Slide # 6

7. Typical Application (1x HDMI & 1x YPbPr )
Satellite
Receiver #2
Satellite Analog Analog
Receiver #1
Video and/or
Digital
(YPbPr)
Audio
Clear Closed
HDMI Captioning
EIA-608
(No HDCP)
2 programs
on Virtual channels
40.3 & 70.12
1x QAM
Output set to
RF Channel 55
Blonder Tongue Laboratories, Inc. 1.800.523.6049 www.blondertongue.com Slide # 7

8. Typical Application (2x YPbPr )
DVD Player Camcorder
with YPbPr with YPbPr
output output
2 programs
on Virtual channels
40.3 & 70.12
1x QAM
Output set to
RF Channel 55
Blonder Tongue Laboratories, Inc. 1.800.523.6049 www.blondertongue.com Slide # 8

9. Application (Digital Return Path)
Remote Origination Headend
HDMI YPbPr Existing
Content Content Headend QAM
Sub-band
1 (T7-T13)
3
QAM
Sub-band
RF
(T7-T14)
QAM
54-864 MHz
Diplexer Combiner (OC series)
RF
To Headeand From
2 via Remote Origination
Return Path Diplexer via Return Path
(DSV Series)
Coaxial
Distribution
Network
1 Content in HDMI and/or YPbPR formats is encoded and modulated into sub-band QAM (HDE-2H-QAM)
2 Content is sent to the head end over the coax via return path
3 8VSB/QAM-to-QAM Processor re-inserts the content into the standard channel lineup (Channels 2-135) (AQP)
Blonder Tongue Laboratories, Inc. 1.800.523.6049 www.blondertongue.com Slide # 9

10. Monitoring & Control - Status Screen
The read-only “Status” screen indicates the MPEG-2 encoded status of each of the 2 inputs.
Blonder Tongue Laboratories, Inc. 1.800.523.6049 www.blondertongue.com Slide # 10

11. Monitoring & Control - Configuration > Video
The “Configuration > Video” screen allows user to configure, for each of the 2 inputs, the following parameters:
Bitrate: The sum of all 10 input bitrates must be less than or equal to 38.79 Mbps when selecting QAM 256 modulation
Closed Captioning: Enabled, Disabled
Video Filter Level: Maximum, Minimum, or Disabled
GOP Size: from 1 to 20 [1]
Input Type: HDMI, Component, Disabled
[1] GOP (Group Of Pictures) specifies the order in which intra-frames & and inter-frames are arranged. Each MPEG-coded video stream consists
of successive GOPs. From the MPEG pictures contained in it the visible frames are generated. A GOP can contain the following picture types:
I-picture or I-frame (intra coded picture)
P-picture or P-frame (predictive coded picture)
B-picture or B-frame (bidirectionally predictive coded picture)
Blonder Tongue Laboratories, Inc. 1.800.523.6049 www.blondertongue.com Slide # 11

12. Monitoring & Control - Configuration > PSIP & QAM
The “Configuration > PSIP” screen
allows user to assign desired channel
name, major channel #, and minor
channel # to each of the 2 inputs.
This provides user with complete
flexibility to position any input on any
virtual channel.
The “QAM” screen allows user to configure the
following QAM RF parameters:
RF Channel (T7-T14 and 2-135)
Output (On, Off, CW)
Output Level
QAM Mode (16,32,64,128,256,512, 1024)
Blonder Tongue Laboratories, Inc. 1.800.523.6049 www.blondertongue.com Slide # 12

13. Ordering & Contact Information
Model Stock Description
HDE-2H-QAM 6375 2x HDMI & YPbPr-to-QAM Encoder
HDE-2C-QAM 6377 2x YPbPr-to-QAM Encoder
Sales Representatives
USA - Western Territory Manager
Mike Maffei mmaffei@blondertongue.com | 800-523-6049 ext 4376
USA - Eastern Territory Manager
Tom Lowden tlowden@blondertongue.com | 800-523-6049 ext 4375
Director - CATV Sales & Special Markets
Steve Cimino scimino@blondertongue.com | 858-505-1318 ; 858-531-2997 (mobile)
Vice President – Sales & Service Management
Jeff Smith jsmith@blondertongue.com | 512-238-6973 ; 732-491-5657 (mobile)
Customer Service btorder@blondertongue.com | 800-523-6049 exts 4220 & 4320
Outside the USA btglobalsales@blondertongue.com
Blonder Tongue Laboratories, Inc. 1.800.523.6049 www.blondertongue.com Slide # 13