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User  Manual

HDMI RF Extender over Coaxial 

              Cable with IR

1

  Introduction

HDMI to RF sender TX*1pcs 

User's manual 1pcs

1.HDMI source device(computer graphics card, DVD,PS3, HD monitor
    equipment etc).
2.SDTV, HDTV or projector with HDMI port.
3.RG6(

) or upper level coaxial cables.

RF to HDMI receiver RX*1pcs

1.  HDMI to RF sender TX

    RF RX: RF signal receive interface 

IR IN: IR receiver extension cable interface
DC5V: DC 5V power input

LINK: signal connection led 
indicator

2

  

Features

Remote control

HDMI OUTPUT: HDMI output

6

  

Connection

DC5V1A*2pcs

2.RF to HDMI receiver RX 

4.  IR remote control

    RF TX: RF signal send interface
    RESET: Press to reset

DC5V: DC 5V power input

IR IN: IR receiver extension 

cable interface

    HDMI INPUT: HDMI signal input

1

2

3

4

5

1

2

3

4

5

1

2

3

5

4

1

2

3

4

5

6.1  One-to-one connection

6.2  One-to-many conection

Connect one CATV splitter to utilize

 

       splitter function.

6.3  Many to many connection

Connect two CATV splitters to build 

       video matrix.

Note: for above“CATV

 

splitter 1”, it needs to  use“OUT”as the signal 

input and“IN”as signal output.
For“CATV splitter 2”, just follow the marks on the panel description.

DVD  

TV

TX  

RX

DVD  

TV

TX  

OUT  

4 WAY SPLIT TER     5-1000MHz
HIGH ISOL ATION&SCREENING  

SB-408E

OUT  

OUT  

OUT  

IN

RX  

RX  

RX  

TV

TV

DVD  

TX  

OUT  

4 WAY SPLIT TER     5-1000MHz
HIGH ISOL ATION&SCREENING  

SB-408E

OUT  

OUT  

OUT  

IN

TV

RX  

RX  

RX  

TV

TV

TX  

TX  

OUT  

4 WAY SPLIT TER     5-1000MHz
HIGH ISOL ATION&SCREENING  

SB-408E

OUT  

OUT  

OUT  

IN

DVD  

DVD  

Q.  It shows “NO SIGNAL” on screen.
A

1)  Make sure to set TV source signal to the correct channel.

      2)  If link LED

 

 

 is not on, check if TX and RX channel settings are

 

  the same.

      3)   If coaxial cable is too long, please refer to Appendix 1 to adjust 
          channel setting.

7

  

FAQ

Q.  Image is not normal after setting channel (splash screen, disturbance, 
      mosaic etc)?
A

Make sure coaxial cable connection is stable. Try a different  channel or 
power-cycle the TX unit.

Q

There is video image output but no sound?

A

Power-cycle the TX unit by disconnecting power for 20 seconds and

reconnect power.

OUT  

4 WAY SPLITTER     5-1000MHz
HIGH ISOLATION&SCREENING  

SB-408E

OUT  

OUT  

OUT  

IN

6.4  Other notes

Important safety notice

1.  Please pay attention to all the warnings and hints on this device. 
2.  Do not expose this unit to rain, moisture or liquid. 
3.  Do not put anything on top of the device.
4.  Do not repair or open this device without professional 

 

guidance.

5.    

Ensure good ventilation to avoid product overheating .

6.  Shut off power and make sure the area  is safe before installation.
7.  Do not connect the network cables and IR cables when the device is on,
    to avoid damage.
8.  Use DC5V only. Make sure the specification matches  if using 3     party 
    DC adapters.

rd 

Please read below safety instructions carefully before installation and operation:

1)  Fully compatible with HDCP.
2)  Transmit up to 700meters with RG6( 75

Ω

) at 1080P@60Hz.

3)  Support up to 100 channels.
4)  Support CATV splitter and amplifier connection.
5)  High quality image, long distance transmission and strong
     anti-interference ability.
6)  Supports IR remote  switching at the receiver.

3

  

PACKAGE CONTENTS

4

  

INSTALLATION REQUIREMENTS

5

  

Panel description

3. Channel parameters settings

Channel setting buttons

1

2

1

2

Channel display screen

CATV splitter 

CATV splitter 1

CATV splitter 2

IR receiver extension 

cable x1pcs

CT-HDVD-HDCX-IR

This HDMI over RF extender utilizes RF conversion technology to convert an 
HDMI signal to an HD digital TV signal, and transmits it by coaxial cable up 
to 700 meters. It provides a high quality image and anti-interference 
capability and can be used with a CATV splitter to realize one to many, many 
to many, and video matrix operations.
The HDMI extender can be applied to a wide variety of operations, such as 
CCTV monitoring, large outdoor screens, shopping malls, education, digital 
KVM fields, etc.

1. Cable length is suggested to be between 300 & 700 meters. If the cable 
is shorter than 100 meters, a signal attenuator of at least 20db will be 
needed. Choose an attenuator size which provides proper signal level at the 
TV.
2. Refer to appendix 1 for channel-frequency mapping table; refer to 
appendix 2 for coaxial cable signal loss values for each channel frequency.
3. When using a CATV splitter for 1-to-many and many-to-many operation, 
please use a bi-directional splitter with low insertion loss, high shielding and 
a frequency range of at least 5 ~ 1000Mhz

The IR remote is used solely to change the receive channel of the RX 

device at the TV. For example, if there is a Playstation on channel 1, a 

Blu-Ray player on ch 2 and a Satellite receiver on channel 3, use the 

remote to choose ch1 to see the playstation, ch2 for the Blu-Ray etc. 

*This channel selction is for the receivers only, and is not passed across the 
coax to the transmitter(s).

75

Ω

There are 100 channels (0~99), selected with 2 buttons. The left 

button changes the‘singles’digit (on the right) and the right 

button changes the “tens”digit (on the left). For eaxample, to set 

channel “21”, press the right button until the left digit is “2” and 

press the left button until the right digit is “1”. Connection 

between a TX device and an RX device is only possible when both 

devices are set to the same channel. 

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