WHD-330-K-B Overview and Use Cases

What Is the WHD-330-K-B?

The OREI WHD-330-K-B is a 1080p wireless HDMI extender kit with one-way IR control. It sends one HDMI source wirelessly to one HDMI display up to 100m / 330ft in an open environment without Wi-Fi interference.

The kit includes an Encoder and Decoder. The HDMI source connects to HDMI IN on the Encoder, the display connects to HDMI OUT on the Decoder, and the HDMI signal is sent wirelessly between both units.

The WHD-330-K-B supports HDMI 1.3, HDCP 1.4, DVI 1.0, H.265 video compression, video resolutions up to 1080p@60Hz / 1920x1200@60Hz, LPCM 2.0CH audio, one-way IR control, firmware update through Micro USB, and wireless transmission distance up to 100m / 330ft in open conditions. The manual lists end-to-end delay as less than 120ms.

The WHD-330-K-B is useful for home entertainment, conference rooms, classrooms, training rooms, temporary display setups, projector setups, and installations where running a long HDMI cable is difficult.

IMPORTANT — WHD-330-K-B Supports 1080p, Not 4K

The WHD-330-K-B supports video resolutions up to 1080p@60Hz and 1920x1200@60Hz.

It does not support:

1. 4K
2. 4K@60Hz
3. 4K@120Hz
4. 8K 
    
   For 4K wireless HDMI, use a wireless HDMI model that specifically supports 4K.

IMPORTANT — Wireless Distance Is up to 100m / 330ft

The WHD-330-K-B supports wireless transmission up to 100m / 330ft.

The manual specifies this distance in an open environment without Wi-Fi interference.

Real-world distance may be reduced by:

1. Walls
2. Cabinets
3. Metal objects
4. AV racks
5. Wi-Fi routers
6. Microwaves
7. Air conditioners
8. Other wireless devices
9. Physical obstructions 
    
   For best performance, keep the Encoder and Decoder within clear line of sight whenever possible.

IMPORTANT — This Is One-to-One Wireless Transmission

The WHD-330-K-B is designed to send one HDMI source to one HDMI display.

For one source to multiple displays, use a model that specifically supports one-to-many wireless transmission.

IMPORTANT — This Is Not Zero-Latency

The WHD-330-K-B uses H.265 compression and has wireless transmission delay.

The manual lists end-to-end delay as less than 120ms.

This is suitable for:

1. Presentations
2. Classrooms
3. Training rooms
4. Video viewing
5. Digital signage
6. General wireless HDMI use 
    
   It is not ideal for fast gaming, live performance monitoring, or applications that require instant response.

IMPORTANT — One-Way IR Control Is Supported

The WHD-330-K-B supports one-way IR control from the Decoder side back to the Encoder side.

This allows the user near the display to control the HDMI source device located near the Encoder.

Typical setup:

1. Connect the IR Blaster cable to IR OUT on the Encoder
2. Place the IR Blaster near the source device’s IR sensor
3. Connect the IR Receiver cable to IR IN on the Decoder
4. Place the IR Receiver where the remote control can see it 
    
   The IR Receiver cable supports 20kHz to 60kHz IR signals.

IMPORTANT — Audio Support Is LPCM 2.0 Only

The WHD-330-K-B supports LPCM 2.0CH audio at 32kHz, 44.1kHz, and 48kHz.

If there is no audio, set the HDMI source audio output to:

1. PCM
2. LPCM
3. Stereo
4. 2CH 
    
   The manual does not list Dolby Digital, DTS, Dolby TrueHD, DTS-HD Master Audio, or Dolby Atmos support.

IMPORTANT — Both Units Need Power

The package includes two DC 5V/1A power adapters.

Both units require power:

Poor or insufficient power may cause no video, pairing issues, signal dropouts, or unstable wireless performance.

IMPORTANT — HDMI Cable Length Matters

The manual recommends using Premium High Speed HDMI cables.

It also lists HDMI input/output cable length guidance of up to 15m / 42ft for 1080p@60Hz.

For best results, use shorter, high-quality HDMI cables when possible.

IMPORTANT — Firmware Update Is Supported

Both the Encoder and Decoder include a SERVICE Micro USB port.

This port is used for firmware updates.

Firmware update process from the manual:

1. Rename the update file to update.bin.
2. Place it in the root directory of a USB drive.
3. Power off the unit.
4. Insert the USB drive into the SERVICE port.
5. Press and hold the PAIR button.
6. Power on the unit while holding PAIR.
7. Release the button when the LINK LED illuminates.
8. Wait until the LINK LED turns off.

Use firmware updates only when provided by OREI support.

Ports and Panel Layout

Step-by-Step Setup

1. Connect the HDMI source device to HDMI IN on the Encoder. 
   Examples include a DVD player, Blu-ray player, cable box, streaming device, laptop, desktop PC, or media player.
2. Connect the HDMI display to HDMI OUT on the Decoder. 
   Examples include a TV, monitor, projector, or commercial display.
3. Connect the included Wi-Fi antennas to both the Encoder and Decoder.
4. Connect one DC 5V/1A power adapter to the Encoder.
5. Connect the second DC 5V/1A power adapter to the Decoder.
6. If IR control is needed, connect the IR Blaster cable to IR OUT on the Encoder.
7. Place the IR Blaster near the source device’s IR sensor.
8. Connect the IR Receiver cable to IR IN on the Decoder.
9. Place the IR Receiver where the remote control can see it.
10. Power on the source device and display.
11. If the units are not paired, press and hold the PAIR buttons on both Encoder and Decoder for 3 seconds.
12. Wait for the LINK LEDs to confirm pairing and signal transmission.
13. Test video, audio, and IR control.

Wireless Signal Requirement — Critical

For best performance, keep the Encoder and Decoder within open line of sight when possible.

Wireless performance may be affected by:

1. Walls
2. Cabinets
3. Metal objects
4. AV racks
5. Other wireless devices
6. Wi-Fi interference
7. Long distance
8. Poor antenna placement
9. Heavy wireless traffic 
    
   If the signal is unstable, move the units closer together, reduce interference, and make sure the antennas are securely installed.

HDMI Cable Requirement — Critical

Use Premium High Speed HDMI cables.

The manual lists HDMI cable length up to 15m / 42ft at 1080p@60Hz.

Poor HDMI cables may cause:

1. No video
2. Flickering
3. Black screen
4. No sound
5. HDCP handshake issues
6. Signal dropouts
7. Wrong resolution 
    
   For troubleshooting, test the HDMI source directly with the display before using the wireless extender.

Power Requirement — Critical

Both units need DC 5V/1A power.

If either Power LED is off, check the adapter, power outlet, and DC 5V connection.

Understanding the Encoder

The Encoder is installed near the HDMI source.

It has:

1. HDMI IN for the source
2. IR OUT for the IR Blaster cable
3. SERVICE Micro USB port for firmware update
4. PAIR button
5. DC 5V power input
6. Wi-Fi antenna ports
7. Power LED
8. LINK LED 
    
   The Encoder sends the HDMI signal wirelessly to the Decoder.

Understanding the Decoder

The Decoder is installed near the display.

It has:

1. HDMI OUT to the display
2. IR IN for the IR Receiver cable
3. SERVICE Micro USB port for firmware update
4. PAIR button
5. DC 5V power input
6. Wi-Fi antenna ports
7. Power LED
8. LINK LED 
    
   The Decoder receives the wireless HDMI signal and outputs it to the connected display.

Understanding Pairing

Pairing connects the Encoder and Decoder together.

Pairing steps:

1. Power on the Encoder and Decoder.
2. Press and hold the PAIR buttons on both units at the same time for 3 seconds.
3. The LINK LEDs on both units will flicker quickly.
4. If the Decoder LINK LED illuminates while the Encoder LINK LED still flickers quickly, pairing is successful.
5. Release the buttons.
6. When video signal is transmitting, both LINK LEDs will flicker slowly.

Understanding LINK LED Status

Use the LINK LEDs when troubleshooting pairing or signal issues.

Understanding IR Control

The WHD-330-K-B supports IR control from the display side back to the source side.

Typical setup:

IR distance from the manual:

If IR control does not work, adjust the IR Blaster position near the source device’s IR window.

Supported Video and Audio

The WHD-330-K-B supports video formats including:

Supported color formats:

Supported audio:

Supported Technical Specifications

What Source Devices Is the WHD-330-K-B Compatible With?

The WHD-330-K-B is compatible with HDMI source devices such as:

1. DVD players
2. Blu-ray players
3. Cable boxes
4. Satellite receivers
5. Set-top boxes
6. Streaming devices
7. Media players
8. Laptops with HDMI output
9. Desktop PCs with HDMI output
10. DVRs
11. NVRs 
     
    The source device must output a supported HDMI resolution up to 1080p@60Hz or 1920x1200@60Hz.

What Displays Is the WHD-330-K-B Compatible With?

The WHD-330-K-B can connect to HDMI displays such as:

1. 1080p TVs
2. Monitors
3. Projectors
4. Commercial displays
5. Classroom displays
6. Conference room displays
7. Training room displays
8. Presentation displays 
    
   The display must support the selected HDMI output resolution.

Frequently Asked Questions

Q: What is the OREI WHD-330-K-B used for? 
A: The WHD-330-K-B is used to wirelessly extend one HDMI source to one HDMI display up to 100m / 330ft in open conditions. It supports up to 1080p@60Hz and one-way IR control.

Q: Does the WHD-330-K-B support 4K? 
A: No. It supports up to 1080p@60Hz / 1920x1200@60Hz.

Q: Does the WHD-330-K-B support 1080p@60Hz? 
A: Yes. It supports 1080p@60Hz.

Q: What HDMI version does it support? 
A: It supports HDMI 1.3.

Q: What HDCP version does it support? 
A: It supports HDCP 1.4.

Q: Does it support DVI? 
A: Yes. The manual lists DVI 1.0 compliance.

Q: What video bandwidth does it support? 
A: It supports 6.75Gbps video bandwidth.

Q: How far can it transmit wirelessly? 
A: It can transmit up to 100m / 330ft in an open environment without Wi-Fi interference.

Q: Does it work through walls? 
A: It may work through some obstacles, but the listed distance is for an open environment without Wi-Fi interference. Walls and obstacles can reduce range.

Q: Is this one-to-one or one-to-many? 
A: This model is one-to-one: one Encoder to one Decoder.

Q: Does the Encoder have HDMI loop out? 
A: No. HDMI loop out is not listed for this model.

Q: Does it support IR remote control? 
A: Yes. It supports one-way IR control from the Decoder side to the Encoder side.

Q: Which IR cable goes on the Encoder? 
A: The IR Blaster cable connects to IR OUT on the Encoder.

Q: Which IR cable goes on the Decoder? 
A: The IR Receiver cable connects to IR IN on the Decoder.

Q: What IR frequency is supported? 
A: The IR Receiver cable supports 20kHz to 60kHz.

Q: What audio formats are supported? 
A: It supports LPCM 2.0CH at 32kHz, 44.1kHz, and 48kHz.

Q: Does it support Dolby or DTS audio? 
A: The manual only lists LPCM 2.0CH. Set the source to PCM / Stereo for best compatibility.

Q: What compression does it use? 
A: It uses H.265 video compression.

Q: What is the delay? 
A: The manual lists end-to-end delay as less than 120ms.

Q: Is it good for gaming? 
A: It is not ideal for fast gaming because it uses wireless H.265 compression and has delay under 120ms. It is better for presentations, video viewing, classrooms, and general HDMI extension.

Q: Does it need power on both ends? 
A: Yes. The package includes two DC 5V/1A power adapters, one for the Encoder and one for the Decoder.

Q: How do I pair the Encoder and Decoder? 
A: Power on both units, then press and hold the PAIR buttons on both units at the same time for 3 seconds.

Q: What does quick flashing LINK LED mean? 
A: It means the Encoder and Decoder are pairing.

Q: What does slow flashing LINK LED mean? 
A: It means the Encoder and Decoder are transmitting video signal.

Q: What does the LINK LED being off mean? 
A: It means no pairing or no signal transmission after successful pairing.

Q: What does illuminated LINK LED mean? 
A: On the Decoder, it can indicate successful pairing. On either unit, it can also indicate firmware updating depending on the process.

Q: How do I reset the Encoder or Decoder? 
A: Short press the PAIR button to reset the unit to factory default status.

Q: Can firmware be updated? 
A: Yes. Firmware can be updated through the SERVICE Micro USB port using an update.bin file.

Q: What HDMI cable should I use? 
A: The manual recommends Premium High Speed HDMI cables.

Q: How long can the HDMI cable be? 
A: The manual lists up to 15m / 42ft for 1080p@60Hz HDMI input/output cable length.

Q: What should I do if there is no video? 
A: Check both power adapters, confirm HDMI IN and HDMI OUT connections, check pairing status, make sure antennas are connected, test the HDMI source directly with the display, and try another HDMI cable.

Q: What should I do if the wireless signal is unstable? 
A: Reduce Wi-Fi interference, move the units closer together, improve line of sight, check antennas, and avoid placing the units near routers, metal objects, or other wireless devices.

Q: What should I do if IR control does not work? 
A: Make sure the IR Receiver is connected to Decoder IR IN, the IR Blaster is connected to Encoder IR OUT, and the IR Blaster is placed near the source device’s IR sensor.

Q: Does the WHD-330-K-B need external power? 
A: Yes. Connect one included DC 5V/1A power adapter to the Encoder and one included DC 5V/1A power adapter to the Decoder.