Satlink ST-7632 Series Guide


Introduction
■ Multiple Video Input with Single Modulation Output
ST-7632 Single Channel High-Definition (HD) modulator provides single channel delivery of multiple
video/audio digital/analog sources over signal coaxial cable. HD video output resolution can be up
to 1080p @ 30 fps with adjustable output power level from 70 to 100
dBµV
in 1 dB step.
Output frequency ranges from 50 MHz to 860 MHz in 6 MHz, 7 MHz or 8 MHz channel bandwidth
depending on the modulation technique.
The operation of ST-7632 is intuitive by using on-panel keypad and 2.4” color LCD screen.
1
ST-7632 Series HD Modulator
■
Input
● HDMI
● CVBS (RCA A/V)
● 75Ω F
DVB-T or
ISDB-T(b) or
DVB-C
■
Output
● 75Ω F
DVB-T or
ISDB-T(b) or
DVB-C
● HDMI
Loop Out

Overview
■ Package Content
•ST-7632 modulator
•Mini USB-male / A-male cable
•Coaxial cable (RG6)
•HDMI Cable
•AC/DC power adapter
•Start Guide
•2.4” color LCD
•Keypad
•Return or escape to
upper level menu and
confirm the current
operation
•
◄►▲▼ Arrow keys to traverse
between fields or
increase / decrease
selected field value
• Confirm the selection
•LEDs
•PWR solid red Power is up
•HD solid red No HDMI input
solid amber HDMI input detected
•CVBS solid amber AV input detected
■ Operation Panel
•Available video/audio source from
Cable TV, antenna and HDMI device
•Available TV set
•Available electrical power socket
Front Panel
•RF-OUT Modulated RF output, 75Ω F
•ANT-IN Antenna or Cable RF Input, 75Ω F
•HD IN HDMI Input, HDMI
•HD OUT HDMI Loop Out, HDMI
•RCA IN CVBS AV Input
•DC 12V IN Power Input
•GND Grounding
Back Panel
•Mini USB USB for software upgrade from PC
•Cable TV (USA) J.83B
•Over-the-Air TV (USA) ATSC (8VSB), ATSC3
•Cable TV (EU, SA)DVB-C (J.83A/C)
•Over-the-Air TV (CO) DVB-T
•Over-the-Air (SA) ISDB-T(b)
■ Installation Requirement
■ Peripheral Interface
■ TV Standards
2
ST-7632 Series HD Modulator

LCD Configuration Menu
■
Quick Install(ation)
♦Country press◄► to show the country list, ▲▼ to select country. Depending on the
Modulation mode selected, channel table of selected country will be loaded
for Channel Name and Frequency setup. If channel table is unavailable for
your country, select the nearby country.
♦Frequency press OK to edit HDMI output frequency, ◄► to move cursor and ▲▼ to
change frequency in modulation range, press RETURN to save and escape.
♦RF Attenuation press◄► to change RF attenuation between 0 and 30 dBµV.
♦Bandwidth press◄► to change modulation channel bandwidth.
♦Signal Source press◄► to select HDMI (digital) or CVBS (optional composite analog) signal
source.
♦LCN press OK to edit LCN, ◄► to move cursor and ▲▼ to change LCN,
press RETURN to save and escape.
♦Channel Name press ◄► to select channel name/number.
♦Program Name press OK to edit program name with alphanumerical soft keypad,
press RETURN to save and escape.
(ISDB-T Only)
♦Remote Key ID press ◄►▲▼ to change the ID number of TV program sorting.
♦Area Code press ◄►▲▼ to change the area code.
■
DVB Settings
♦ DVB-T (or ISDB-T or DVB-C Mode)
Press ◄► to change modulation technique.
♦Symbol Rate press OK to edit symbol rate in MHz, ◄► to move cursor and ▲▼ to change
symbol rate.
♦Code Rate Press ◄► to change code rate.
♦Carrier Type Press ◄► to change carrier type.
♦Guard Interval Press ◄► to change guard band interval.
♦Interleaving Press ◄► to change interleaving
.
■
Transport Stream (TS) Settings
♦NID Network ID between 1 and 65535.
♦ONID Organization Network ID between 1 and 65535.
♦TSID Transport Stream ID between 1 and 65535.
♦SID Service Stream ID between 1 and 65535.
♦PMT PID Program Map Table (PMT) Packet ID (PID) between 1 and 8191.
♦Video PID Video Packet ID (PID) between 1 and 8191.
♦Audio PID Audio Packet ID (PID) between 1 and 8191.
press OK to edit IDs, ◄► to move cursor and ▲▼ to change values,
press RETURN to save and escape.
♦Service Provider
press OK to edit service provider name with alphanumerical soft keypad,
press RETURN to save and escape.
♦Network Name
press OK to edit network name with alphanumerical soft keypad,
press RETURN to save and escape.
■
System Setup
♦OSD Language
press◄► to change on-screen-display language.
♦Modulator Mode
press◄► to change modulator type.
♦Key Tone
press◄► to toggle keypad beep sound between ON and OFF.
♦Factory Reset press OK to reset and restore factory defaults.
♦About Display information of software and hardware revisions of the unit.
3
ST-7632 Series HD Modulator

Modulation Attributes
■
DVB-T
♦Frequency Range 50 MHz to 860 MHz
♦Channel Bandwidth 6 MHz (Colombia/Panama), 7 MHz (Australia),
8 MHz (Europe, New Zealand)
♦Technique 16QAM, 64QAM, QPSK
♦Carrier Type 2K. 8K
♦ Code Rate 1/2, 2/3, 3/4, 5/6, 7/8
♦ Guard Interval 1/4, 1/8, 1/16. 1/32
♦ MER >32dB
♦Attenuator 0 to 30dB
■
ISDB-T(b)
♦Frequency Range 50 MHz to 860 MHz
♦Channel Bandwidth 6 MHz
♦Technique 16QAM, 64QAM, DQPSK, QPSK
♦Carrier Type 2K. 4K, 8K
♦ Code Rate 1/2, 2/3, 3/4, 5/6, 7/8
♦ Guard Interval 1/4, 1/8, 1/16. 1/32
♦ Interleave Mode 1, Mode 3, Disabled. Used for robustness of
Forward Error Correction (FEC).
♦ MER >32dB
♦Attenuator 0 to 30dB
■
DVB-C
♦Frequency Range 50 MHz to 860 MHz
♦Channel Bandwidth 8 MHz
♦ Symbol Rate editable, 6.875 Mbps
♦Technique 16QAM, 32QAM, 64QAM, 128QAM, 256QAM
♦ MER >32dB
♦Attenuator 0 to 30dB
■ Audio Codec
Audio encoding is automatically selected by the Modulator to reach the best quality according to local
modulation technique.
MPEG MPEG-2 Layer 1 audio coding applies to DVB-T broadcasting in Europe and South America.
ACC Advanced Audio Coding for MPEG-4 applies to ISDB-T broadcasting in South America and certain
ATSC (8VSB) broadcasting in North America.
■ Video Quality
Video quality is optimized by determining the size and the speed to transmit MPEG packets to the TV.
The packet latency and delay variation are adjusted automatically by the Modulator to reach the best
video quality and performance on the TV.
4
ST-7632 Series HD Modulator

Before Installation
■ Choose Modulated Output Frequency for HDMI Video on TV
•Modulated output frequency of HDMI video can be any existing channel frequency available from
your local Channel Plan.
•Depending on the modulation technique of over-the-air broadcasting TV or Cable TV used in your
area, refer to the corresponding appendix for Channel Plan information.
•Select an unused or an unimportant channel from the Channel Plan as output frequency of HDMI
video.
• If you are unsure about which output frequency to be used for HDMI video
◊ Pick a frequency between channel gap, make sure it’s 6 MHz or 8 MHz away from the previous
and the next channels.
◊ Use the recommended frequency indicated on the corresponding Channel Plan appendix.
◊ Use the default frequency selected by the Modulator.
•Modulated output frequency and channel number can be configured from the LCD menu or Web
Configuration page.
• Follow the instructions of this Start Guide to set up output frequency and channel number to
watch HDMI video on your TV.
•Your TV needs to learn the HDMI video channel by auto or manual channel rescan. Refer to the
user’s guide of your TV set to practice the rescan for channel detection of HDMI video.
■ Combining (Cable) TV Signals from Service Provider (e.g. Comcast)
•In order to combine the existing TV broadcasting channels from service provider, it’s necessary to
select an output frequency and output channel (ATSC only) for Modulator’s HDMI video. The
channel information of your local over-the-air broadcasting or local Cable TV service can normally
be found online or from the channel listing table provided by your service provider.
• For business installers, a handheld spectrum analyzer up to 1 GHz can be helpful to make the
installation easier and faster although it’s not mandatory.
• If the modulator output is going to feed a Digital Cable Converter box or a set-top box, some
service providers offer a dedicated channel (and frequency) for modulated video and some service
providers may need a specific PID to be configured by the Modulator for MPEG streams to be
recognized by the set-top box. Refer to the section of MPEG Transport Stream Parameters for PID
setup.
• If the output power level of the Modulator is too high, it may oversaturate the TV signals delivered
by service providers. It’ necessary to lower the output power level or use an attenuator to reduce
the oversaturation.
5
ST-7632 Series HD Modulator

DVB-T ⇐ Over-the-Air TV with HDMI Modulation
If TV signal is originally coming from an indoor or an outdoor antenna,
follow the steps below to combine the HDMI video with DVB-T TV video.
The Modulator with default settings can work as a plug-and-play device
if it’s unsure about how to setup the output frequency of HDMI video.
If you plan to customize the settings, refer to the section Choose
Modulated Output Frequency for HDMI Video on TV to pick up the output
frequency and channel number of HDMI video.
The on-screen-display language can be changed by going to
Syatem Setup → OSD Language.
①Power on the Modulator with power adapter included in the package.
② Disconnect the end of coaxial cable connected to the RF/Antenna IN
port of the TV.
③Connect the end of the coaxial cable removed from step 2 to the ANT
IN port of the Modulator.
④Connect the RF OUT port of the Modulator to the RF/Antenna IN port
of the TV with a coaxial cable included in the package.
⑤Connect the HD IN port of the Modulator to the HDMI OUT port of
video players or input devices like DVD player, Satellite TV Set-Top
Box, Video Stream, Security Monitor ... etc.
It’s recommended to set the video output of HDMI device with fixed
resolution at 1080p or 720p.
⑥ Go through the LCD menu screen on the Modulator to configure
settings. Press OK to go to the main menu and
System Setup →Modulator Type →select DVB-T
DVB Settings →Carrier Type →select 8K
DVB Settings →Constellation →select QAM-64
Quick Install →Country → select your country if it’s available
Quick Install →Channel Name →press ◄► to select channel name/
number from the drop down list of channel table
Quick Install → Frequency → press OK to edit frequency in MHz with
◄►▲▼ keys
Quick Install →Bandwidth →select 8MHz channel bandwidth if unsure
Quick Install →Signal Source →press ◄► to select source of input
Quick Install →Program Name →press OK to edit channel name with
soft alphanumerical keypad
⑦ Turn on the TV. Refer to the user’s manual of the TV and run Auto
Scan for channel detection.
⑧Change the TV channel to the channel plan number selected in step 6.
⑨ HDMI video is displayed on the TV if HDMI video source is inserted.
Otherwise, the SATLINK logo is displayed.
Once the HDMI video source is detected and modulated, the HD LED on
panel glows solid amber.
6
ST-7632 Series HD Modulator

ISDB-T(b) ⇐ Over-the-Air TV with HDMI Modulation
If TV signal is originally coming from an indoor or an outdoor antenna,
follow the steps below to combine the HDMI video with ISDB-T(b) video.
The Modulator with default settings can work as a plug-and-play device
if it’s unsure about how to setup the output frequency of HDMI video.
If you plan to customize the settings, refer to the section Choose
Modulated Output Frequency for HDMI Video on TV to pick up the output
frequency and channel number of HDMI video.
The on-screen-display language can be changed by going to
Syatem Setup → OSD Language.
①Power on the Modulator with power adapter included in the package.
② Disconnect the end of coaxial cable connected to the RF/Antenna IN
port of the TV.
③Connect the end of the coaxial cable removed from step 2 to the ANT
IN port of the Modulator.
④Connect the RF OUT port of the Modulator to the RF/Antenna IN port
of the TV with a coaxial cable included in the package.
⑤Connect the HD IN port of the Modulator to the HDMI OUT port of
video players or input devices like DVD player, Satellite TV Set-Top
Box, Video Stream, Security Monitor ... etc.
It’s recommended to set the video output of HDMI device with fixed
resolution at 1080p or 720p.
⑥ Go through the LCD menu screen on the Modulator to configure
settings. Press OK to go to the main menu and
System Setup →Modulator Type → select ISDB-T
DVB Settings →Carrier Type →select 8K
DVB Settings →Constellation →select QAM-64
Quick Install →Country → select your country if it’s available
Quick Install →Channel Name →press ◄► to select channel name/
number from the drop down list of channel table
Quick Install → Frequency → press OK to edit frequency in MHz with
◄►▲▼ keys
Quick Install →Signal Source →press ◄► to select source of input
Quick Install →Program Name →press OK to edit channel name with
soft alphanumerical keypad
Quick Install → Remote Key ID → press OK to edit remote key ID with
◄►▲▼ keys
Quick Install →Area Code → press OK to edit are code with
◄►▲▼ keys
⑦ Turn on the TV. Refer to the user’s manual of the TV and run Auto
Scan for channel detection.
⑧Change the TV channel to the channel plan number selected in step 6.
⑨ HDMI video is displayed on the TV if HDMI video source is inserted.
Otherwise, the SATLINK logo is displayed.
Once the HDMI video source is detected and modulated, the HD LED on
panel glows solid amber.
7
ST-7632 Series HD Modulator

DVB-C ⇐ Cable TV with HDMI Modulation
If TV signal is originally coming from a Cable TV coaxial drop, follow the
steps below to combine the HDMI video with DVB-C Cable TV video.
The Modulator with default settings can work as a plug-and-play device
if it’s unsure about how to setup the output frequency of HDMI video.
If you plan to customize the settings, refer to the section Choose
Modulated Output Frequency for HDMI Video on TV to pick up the output
frequency and channel number of HDMI video.
The on-screen-display language can be changed by going to
Syatem Setup → OSD Language.
①Power on the Modulator with power adapter included in the package.
② Disconnect the end of coaxial cable connected to the RF/Antenna IN
port of the TV.
③Connect the end of the coaxial cable removed from step 2 to the ANT
IN port of the Modulator.
④Connect the RF OUT port of the Modulator to the RF/Antenna IN port
of the TV with a coaxial cable included in the package.
⑤Connect the HD IN port of the Modulator to the HDMI OUT port of
video players or input devices like DVD player, Satellite TV Set-Top
Box, Video Stream, Security Monitor ... etc.
It’s recommended to set the video output of HDMI device with fixed
resolution at 1080p or 720p.
⑥ Go through the LCD menu screen on the Modulator to configure
settings.Press OK to go to the main menu and
System Setup →Modulator Type →select DVB-C
DVB Settings → Symbol Rate →press OK to edit symbol rate in kHz
with ◄►▲▼ keys
DVB Settings →Constellation →select QAM-64, QAM-128 or QAM-256
Quick Install →Country → select your country if it’s available
Quick Install →Channel Name →press ◄► to select channel name/
number from the drop down list of channel table
Quick Install → Frequency → press OK to edit frequency in MHz with
◄►▲▼ keys
Quick Install →Signal Source →press ◄► to select source of input
Quick Install →Program Name →press OK to edit channel name with
soft alphanumerical keypad
⑦ Turn on the TV. Refer to the user’s manual of the TV and run Auto
Scan for channel detection.
⑧Change the TV channel to the channel plan number selected in step 6.
⑨ HDMI video is displayed on the TV if HDMI video source is inserted.
Otherwise, the SATLINK logo is displayed.
Once the HDMI video source is detected and modulated, the HD LED on
panel glows solid amber.
8
ST-7632 Series HD Modulator

MPEG Transport Stream Parameters
♦NID Network ID contained in Network Information Table (NIT).
♦ONID Organization Network ID contained in Network Information Table (NIT).
♦TSID Transport Stream ID contained in Service Description Table (SDT).
♦SID Service ID contained in Service Description Table (SDT) to identify transport
stream.
♦PMT PID Program Map Table (PMT) PID contains the directory listing of all program
map tables in the transport stream, including the program number and the
list of elementary streams.
♦Video PID Video content stream PID contained in MPEG transport stream for
demultiplexer to locate by sorting the incoming packets.
♦Audio PID Audio content stream PID contained in MPEG transport stream for
demultiplexer
to locate by sorting the incoming packets.
♦Service Provider
Name of the broadcaster responsible for the service availability or authority
contained in Service Description Table (SDT).
♦Network Name
Name of the network contained in Network Information Table (NIT).
It’s not recommended to change MPEG Transport Stream (TS) parameters unless you understand the
MPEG PID structure well or your Service Provider requires you to configure specific Packet Identifier
(PID) describing the payload data for set-top box initialization.
Refer to Wikipedia for more information about MPEG Transport Stream structure.
https://en.wikipedia.org/wiki/MPEG_transport_stream
https://en.wikipedia.org/wiki/Program-specific_information
9
ST-7632 Series HD Modulator

Installing Multiple Modulators
•Set up and connect the modulator to coax network or TV set one modulator at a time.
• Make sure the following settings for HDMI video modulation are different among modulators
① Output frequency refer to the section Choose Modulated Output Frequency for HDMI
Video on TV to pick up different output frequencies for different
modulators
② Channel name default channel name on ST-7632 series is SLK HD1, the channel naming
can be SLK HDn, where nindicates the modulator count.
③ Channel number and subchannel number (available on ATSC modulator only)
• A combiner or multiplexer is needed to combine the output signals of multiple modulators if the
coax network and the TV sets share the source of video output of modulators.
• If ST-7632 modulator is used together with other brands’ modulators, harmony settings of RF
output (power) level and output frequency must be found. Refer to the section Combining Service
Provider Signals for more information.
• Make a note on each modulator with RF output level and output frequency for quick reference
and easy trouble shooting whenever needed.
• If more than more than 40 TV sets are connected to share the modulator output signal, it might
be necessary to use active splitter or combiner to amplify the output power to reach individual
TV at the far end. The receiving power of each TV should be higher than 75
dBµV
or the signal
can be instable.
•Depending on the quality and aged damage, splitters, combiners and coaxial cable itself can
introduce high attenuation or insertion loss to the coax wiring. Power loss budget calculation
might be necessary along the delivery path.
In case multiple units of ST-7632 series modulators are installed on the same coax network/wiring
or connected to the same TV set, pay attention to following items to avoid conflicts or interference
among modulators.
10
ST-7632 Series HD Modulator

Specifications
Note: Specifications are subject to change without notice.
Note: In order to display video normally on TV
• Signal accepted by the TV must comply with standard MPEG-4 encoding
• The video content is not protected under High-Bandwidth Digital Content Protection (HDCP)
agreement
SATLINK logo screen on TV
11
ST-7632 Series HD Modulator
Resolu�on 576i PAL 480i NTSC
Input Output
1920 x 1080_60p 1920 x 1080_30p
1920 x 1080_50p 1920 x 1080_25p
1920 x 1080_60i 1920 x 1080_30i
1920 x 1080_50i 1920 x 1080_25i
1280 x 720_60p 1280 x 720_30p
1280 x 720_50p 1280 x 720_25p
Aspect Ra�o
Encoding
Sampling Rate
Bit Rate
12 VDC, 1.5A
8" x 5.35" x 2" (204 x 136 x 51 mm)
1 lb (0.45 kg)
0 to 50 °C (Opera�on)
-20 to 80 °C (Storage)
General
Power Supply
Dimensions with Rack
Weight
Temperature
Audio
MPEG-2 AAC
48 kHz
H.264 MPEG-4/AVC; 1 to 20 Mb/s compression bitrate
HDMI x 2, 75ΩF x 2, RCA AV x 1
16:9; 4:3
64, 96, 128, 192, 256, 320 kbps
Encoding
Interface
Modula�on
HDMI
CVBS (Op�onal)
Video Resolu�on
MPEG-4
CVBS (PAL,
NTSC)
50 to 860 MHz, 1 kHz Step
70 to 100 dBmV, 1 dB Step
Output Frequency
Output Level

Note: * indicates channels with 7 MHz bandwidth. 7 MHz channels are not available in the UK.
DVB-T Channel Plan
Channel Bandwidth: 7 MHz or 8 MHz QAM, QPSK
•Suggested settings for HDMI video
Frequency 474.000 MHz (CH-21)
Channel Name SLK HD1
•Channel Plan is for reference only. It may vary across countries, areas or cities. Refer to the
LCD menu screen of the Modulator to load country-wise Channel Plan if available.
Channel
No.
Frequency
(MHz)
CH-05 177.5*
CH-06 184.5*
CH-07 191.5*
CH-08 198.5*
CH-09 205.5*
CH-10 212.5*
CH-11 219.5*
CH-12 226.5*
CH-21 474
CH-22 482
CH-23 490
CH-24 498
CH-25 506
CH-26 514
CH-27 522
CH-28 530
CH-29 538
CH-30 546
CH-31 554
CH-32 562
CH-33 570
CH-34 578
CH-35 586
CH-36 594
CH-37 602
CH-38 610
CH-39 618
CH-40 626
CH-41 634
Channel
No.
Frequency
(MHz)
CH-42 642
CH-43 650
CH-44 658
CH-45 666
CH-46 674
CH-47 682
CH-48 690
CH-49 698
CH-50 706
CH-51 714
CH-52 722
CH-53 730
CH-54 738
CH-55 746
CH-56 754
CH-57 762
CH-58 770
CH-59 778
CH-60 786
CH-61 794
CH-62 802
CH-63 810
CH-64 818
CH-65 826
CH-66 834
CH-67 842
CH-68 850
CH-69 858
12
ST-7632 Series HD Modulator
Channel
No.
Frequency
(MHz)
CH-21 474
CH-22 482
CH-23 490
CH-24 498
CH-25 506
CH-26 514
CH-27 522
CH-28 530
CH-29 538
CH-30 546
CH-31 554
CH-32 562
CH-33 570
CH-34 578
CH-35 586
CH-36 594
CH-37 602
CH-38 610
CH-39 618
CH-40 626
CH-41 634
CH-42 642
CH-43 650
CH-44 658
CH-45 666
CH-46 674
CH-47 682
CH-48 690
CH-49 698
Channel
No.
Frequency
(MHz)
CH-50 706
CH-51 714
CH-52 722
CH-53 730
CH-54 738
CH-55 746
CH-56 754
CH-57 762
CH-58 770
CH-59 778
CH-60 786
CH-61 794
CH-62 802
CH-63 810
CH-64 818
CH-65 826
CH-66 834
CH-67 842
CH-68 850
CH-69 858
DVB-T Channel Plan in UK
Reference only for Digital Terrestrial TV in Europe.

ISDB-T(b) Channel Plan
Reference only for Digital Terrestrial TV in South America.
Channel Bandwidth: 6 MHz QAM, DQPSK, QPSK
•Suggested settings for HDMI video
Frequency 473.143 MHz (CH-14)
Channel Name SLK HD1
•Channel Plan is for reference only. It may vary across countries, areas or cities.
Channel
No.
Frequency
(MHz)
CH-39 623.143
CH-40 629.143
CH-41 635.143
CH-42 641.143
CH-43 647.143
CH-44 653.143
CH-45 659.143
CH-46 665.143
CH-47 671.143
CH-48 677.143
CH-49 683.143
CH-50 689.143
CH-51 695.143
CH-52 701.143
CH-53 707.143
CH-54 713.143
CH-55 719.143
CH-56 725.143
CH-57 731.143
CH-58 737.143
CH-59 743.143
CH-60 749.143
CH-61 755.143
CH-62 761.143
CH-63 767.143
CH-64 773.143
CH-65 779.143
CH-66 785.143
CH-67 791.143
CH-68 797.143
CH-69 803.143
13
ST-7632 Series HD Modulator
Channel
No.
Frequency
(MHz)
CH-07 177.143
CH-08 183.143
CH-09 189.143
CH-10 195.143
CH-11 201.143
CH-12 207.143
CH-13 213.143
CH-14 473.143
CH-15 479.143
CH-16 485.143
CH-17 491.143
CH-18 497.143
CH-19 503.143
CH-20 509.143
CH-21 515.143
CH-22 521.143
CH-23 527.143
CH-24 533.143
CH-25 539.143
CH-26 545.143
CH-27 551.143
CH-28 557.143
CH-29 563.143
CH-30 569.143
CH-31 575.143
CH-32 581.143
CH-33 587.143
CH-34 593.143
CH-35 599.143
CH-36 605.143
CH-37 611.143
CH-38 617.143

DVB-C (J.83A/C) Channel Plan
Reference only for Digital Cable TV in the world.
Channel Bandwidth: 8 MHz QAM
•Suggested settings for HDMI video
Frequency 778.000 MHz (# 88)
Channel Name SLK HD1
•Channel Plan is for reference only. It may vary across countries, areas or cities.
Channel
No.
Frequency
(MHz)
1 52.5
2 60.5
3 68.5
4 80
5 88
13 115
14 123
15 131
16 139
17 147
18 155
19 163
6 171
7 179
8 187
9 195
10 203
11 211
12 219
20 227
21 235
22 243
23 251
24 259
25 267
26 275
27 283
28 291
29 299
30 307
31 315
32 323
33 331
Channel
No.
Frequency
(MHz)
34 339
35 347
36 355
37 363
38 371
39 379
40 387
41 395
42 403
43 411
44 419
45 427
46 435
47 443
48 451
49 459
50 474
51 482
52 490
53 498
54 506
55 514
56 522
57 530
58 538
59 546
60 554
61 562
62 570
63 578
64 586
65 594
66 602
Channel
No.
Frequency
(MHz)
67 610
68 618
69 626
70 634
71 642
72 650
73 658
74 666
75 674
76 682
77 690
78 698
79 706
80 714
81 722
82 730
83 738
84 746
85 754
86 762
87 770
88 778
89 786
90 794
91 802
92 810
93 818
94 826
95 834
96 842
97 850
98 858
99 866
14
ST-7632 Series HD Modulator

Notes
■ Warranty
This device has two-year Limited Hardware Warranty and 90-day free software updates after
purchase. This Limited Warranty Statement gives the customer specific legal rights. The customer
may also have other rights which vary from country to country in the world. To the extent that this
Limited Warranty Statement shall be deemed modified to be consistent with such local law. Under
such local law, certain disclaimers and limitations of this Warranty Statement may not apply to the
customer.
■ Important Safety Instructions
Basic safety precautions should always be followed to reduce the risk of fire, electrical shock, and
personal injury, including the following:
• Do not use this product near water – for example, near a bathtub, kitchen sink, laundry tub, or
swimming pool, or in a wet basement; only clean with dry cloth.
• Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
including amplifiers that produce heat.
• Do not remove the cover of the modulator, cover the modulator with thick or heavy objects.
• Use only the power cord indicated in this manual if applicable.
■ Coaxial Cable
If applicable, the coaxial cable screen shield needs to be connected to the Earth at the building
entrance per ANSI/NFPA70, the National Electrical Code (NEC), in particular Section 820.93,
“Grounding of Outer Conductive Shield of a Coaxial Cable,” or in accordance with local regulation.
15
ST-7632 Series HD Modulator
■ Declaration of CE Conformity for EU
Manufacturer: SatLink Electronics Co., Ltd.
No. 26, Zishan Road, Jiangnan High-Tech Park, Licheng District
Quanzhou, Fujian Province, China
Objects: ST-7000, ST-7632
This declaration of conformity is issued under the sole responsibility of the manufacturer for
products of HDMI RF modulators that support single channel or multi-channel DVB-T, ISDB-T,
DVB-C (J.83B/A/C), and ATSC standards. The object(s) of the declaration described above are in
conformity with the relevant Community harmonization legislation:
– Low Voltage Directive (2014/35/EU)
– Electromagnetic Compatibility Directive (2014/30/EU)
- Radio Equipment Directive (2014/53/EU)
And their amendments.
References to the relevant harmonised standards, including the date of the standard, used in
relation to which the conformity is declared:
– ETSI EN 301 48901 v2.2.3: 2019-11
- ESTI EN 301 489-53 v1.1.1: 2019-04
- ESTI EN 303 372-2 v1.1.1: 2016-04
- ESTI EN 303 340 v1.2.0: 2020-06
- EN IEC 62368-1:2020+A11:2020
Where applicable, the Most Technology Service Co., Ltd. performed above specification conformity
test and issued certificate # MOSTCC21061592 in accordance with local regulation.

Trouble Shooting
♦The video and the audio from HDMI source are not synchronized on TV
Unplug and plug the HDMI port on the Modulator to restore.
♦My HDMI video cannot be viewed on TV but other channels can be viewed
• If SATLINK logo screen can be viewed on TV without HDMI source device connected, check the
user’s guide of your HDMI device to ensure fixed and high resolution to output video signal for
modulation correctly.
• If nothing is displayed on TV with or without HDMI source device connected, check all
connections, settings are correct according to the instructions on this Start Guide.
• Try another TV, if available, without HDMI source device connected to ensure SATLINK logo screen
is displayed.
• If a HDMI switch or a hub is used, some of them don’t pass through Extended Display Identification
Data (EDID) to tell the video resolution. Connect the HDMI deivce directly to the Modulator or TV
without a switch.
• If the HDMI source is from a PC/DVI device (e.g. laptop computer), the Modulator doesn’t support
it. A converter box to convert the DVI video to standard 3D video in 720p or 1080p is required.
♦The HD LED doesn’t stay solid amber all the time
Make sure the HDMI source device is set to output fixed resolution at 1080p or 720p and connected
directly to the Modulator without intermediate components like splitters, combiners or switch.
♦Video with fast motion doesn’t play well or shows ghosting on TV
Problem: This might be caused by interlacing issue with 1080i resolution on sports or action video.
♦How to get the best video quality on TV with the Modulator
• Change the HDMI video output format to 1080p or 720p (progressive) mode. If TV set doesn’t
support 1080p, change the HDMI video output format to 720p and enable interlacing.
• If QAM modulation technique is available from the Modulator, change it to 256QAM.
♦How do I know my TV supports DVB-T or DVB-C (J.83A) standard
Most recent models of TV set sold in Europe within the last three years can support both
DVB-T and DVB-C(J.83A) standards but if you are not sure, the broadcasting standard of the TV can
be realized by checking the wiring:
• If the coaxial cable connected to the TV is an outdoor/indoor antenna drop, the TV supports
DVB-T.
• If the coaxial cable connected to the TV is a Cable TV drop from a service provider, the TV
supports DVB-C.
♦Some or most channels are instable or cannot be viewed on TV
The input signal can be too strong for the TV. Reduce the RF output (power) level to lower value,
but higher than 70dBuV, from the menu screen on the Modulator.
♦Audio from HDMI source is skipping or stuttering on TV
If HDMI source device has Compressed Audio or Dolby Digital Sound enabled, try to set it to
traditional Pulse-Code Modulation (PCM) Stereo or Uncompressed Audio output. Double compression
of audio signal may cause audio skipping on TV.
♦How do I replace an old modulator with ST-7632
Refer to the settings of the old modulator and duplicate them, such us Output Frequency, Output
Power Level, Channel Number, Channel Name … etc. to ST-7632 as much as possible before replacing
the old modulator.
♦The HDMI video stretches or shrinks on TV
ST-7632 processes HDMI video without alteration in color and aspect ratio. Check the settings of
aspect ratio on HDMI device and TV to adjust and fix.
16
ST-7632 Series HD Modulator


Fujian Satlink Electronics Co., Ltd. Copyright 2020, All Rights Reserved.
Jiangnan High Technology Industrial Zone
Licheng District, Quanzhou, Fujian, China
www.satlinkcn.com
North, Central and South America Distribution
StarLink LLC
www.starlink7.com
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