GAOTek HD Combine Tester

This HD Combine Tester is designed with dual 1000 M network port which supports analog SD, HD-TVI, AHD, and HD IPC and can be used to monitor network flow to locate faults



Key Features

  • Supports Analog SD, HD-TVI, AHD, HD IPC
  • Ergonomic, portable design and single-handed operation
  • Step by step testing guide to quickly locate faults
  • Highly compatible with ONVIF protocols
  • Real time operation prompt
  • POE power supply, PD power accept, 12 V/2A power output
  • Dual 1000M network ports, supports packet loss detection, data flow monitor
  • 0 inch IPS display with 800 X 480 resolution and 16.7 M colors
  • Flip keyboard input
  • Replaceable Lithium-ion polymer battery, battery life of 10 hours
  • Rubber protection layer
  • Dual LED torch light



Technical Specifications

Network Interface Dual 10/100/1000M RJ45 port, support switch mode
Function Interface Dual BNC port (Video Input and Video Output), RS485, audio input, USB, reset button
IPC Test
Protocol ONVIF 2.4.1, RTSP, RTP
Ethernet Test 10/100/1000M Ethernet link test, loop detect, Ethernet traffic flow monitor, link quality test
IP Configuration Static IP/ DHCP client/ DHCP server
IPC Test Discover camera, real time video, camera configuration, PTZ control, audio test, full screen preview and 8x digital zoom, snapshot, record video(recording original data stream)
HDCVI and Analog Test
SD Signal Format NTSC,PAL
HD Video Signal HDCVI*
Resolution D1, 720 P,1080 P
Signal Level 1 Vpp
Camera Test Real time video, PTZ control, audio test, full screen preview and 8x digital zoom, snapshot, record video(H.264)
HDCVI OSD Camera configuration
PTZ Control
Protocol More than 30 protocols. Dahua, Pelco-D/p, Samsung, Panasonic, Lilin, Yaan…
Baud Rate 150, 300, 600, 1200, 2400, 4800, 9600, 19200 bps
Network Analyze Sniff, list subnet, ping
Analog Video Generator Generate PAL/ NTSC video signal of various pattern
Record Playback Support local playback
System Specifications
Screen 4.0 in TFT 800 x RGB x480 (WVGA) resolution

16.7 M color, backlight brightness adjustable.

Operation method Power Key, 12 control keys, QWERTY flip keyboard with 45 keys
Auto Power OFF Disable / 5 ~ 60 minutes
Keyboard Tone Enable / Disable
Upgrade Support online upgrade
Power Input POE source or POE injector
POE Injector Input AC 100 ~ 230 V, 50 ~ 60 Hz

Output 48 V/ 15 W

Battery 7.4 V lithium-ion polymer battery(replaceable)
Battery Capacity 22.2 Watt hours
Power Output POE (802.3 af,802.3 at) DC 12 V 2 A
Time Charging Time 3 ~ 4 hours

Working Time 10 hours

General Specifications
Internal Storage 8 GB flash
LED Light Two 35 lm LED light
Dimensions 7.48 in x 4.45 in x 1.46 in (190 mm x 113 mm x 37 mm)
Weight 3.53 lbs. (1.6 kg)
Working Humidity 30 % ~ 90 %
Working Temperature 14 °F to 131 °F (-10 °C to +55 °C)




Item Quantity
Tester Device 1 pc
Lanyard 1 pc
Battery 1 pc
Battery Cover 1 pc
Tool Bag 1 pc
POE Power Injector 1 pc
Network Cable 1 pc
BNC Cable 1 pc
RS485 Cable 1 pc
12 V Power Output Cable 1 pc
Audio Cable 1 pc
USB Cable 1 pc
Screen Protector Film 1 pc

Product Functions

 ONVIF Test:

This function is a step by step guide for network camera testing.


Testing Ethernet connection,IP settings,DHCP request and DHCP service


Discovering camera and showing a snapshot from selected camera.


The user can continue to adjust camera settings,take snapshots of videos or record video.

Analog Video test and RS485 PTZ control:

This function allows the display of video input from a BNC connector.It can automatically detect

Analog video formats,including SD and HD* signals.

The PTZ controller supports over 30 PTZ protocols.

Analog Video Genarator

This function generates analog video can be used to test analog transmission routes.

It can be used to test transmission rroutes,recorders,etc. The input signals is also showed on the screen,allowing users to compare the input video to the output video.The generated video can be PAL/NTSC format and support the EBU color bar, PM5544.

POE Power Supply, POE Power Accept, 12 V 2A Power Output

The device can supply temperory POE/12 V power to cameras when testing.The device can also accept power from a POE switch.

Audio Test

This function allows users to test front end microphones or other audio sources.

Network Cable TDR Test

Both network port supports TDR cable test.Test method is Time domain Reflection analysis. It can measure cable length with just one end connecting to the device.

Panel Description

 Operation instructions

Installing Battery and Recharging

The tester device uses a rechargeable lithium-ion polymer battery. To ensure safety when transporting, ensure the battery is disconnected from the tester deice. The device may leave the factory with one of the following two battery placements:

  • The battery is placed inside tester and insulated from the circuit with a thin, plastic sheet. In this case, the user should open the battery cover, take out the battery, remove the plastic sheet, then put the battery back in, and put the battery cover back on.
  • The battery is placed outside the tester. In this case, the user should open the battery cover, put in battery, and put the battery cover back on.

When the battery is properly placed in the device for the first time, the tester will automatically turn on.

If battery level is too low, the charge indicator will flash 3 times, and the device won’t turn on.

When recharging internal battery, use the provided POE injector and RJ45 cable. Connect the POE injector data/power-out connector to network port 2 (green) using the RJ45 cable, then plug in city power. Network port 2 (orange) lights up when the internal battery is recharging.

The tester uses a lithium-ion polymer battery, which does not have a memory effect. Users can recharge the battery whenever they want.

When recharging, the red battery icon () lights up. When the battery is fully charged, the light turns off.

The battery can also be charged using a POE switch or other POE power sources that meet the 802.3 af/802.3 at standard.

Due to calculation deviation or other reason, the battery level can be as low as 90% when the charge light turns off. Users can ensure their battery is fully charged by extending the charge time for up to 60 minutes.

Do not use a non-standard POE power supply to charge the battery. This can destroy the tester.

Lanyard Wearing

Users can choose to install the lanyard. The lanyard can help handling the device, prevent dropping the device, avoid damage to the device, and prevent loss.

To install lanyard, put one end of the lanyard through the hole at the head of the device, turn back and go through the tri-glide button. Tighten the lanyard and confirm that it is locked.

Basic Starting Instruction

Turning the Device On and Off

  • To turn on the device, press the power key and hold for more than 2 seconds. The power icon will light up green when the device is turned on.
  • To turn off the device, press the power key and hold more than 2 seconds. When the device is turned off, the green light will turn off after the device is fully shut down. Users can also setup the idle auto power off function.

Selecting Function Mode

  • When the device is on, press the “mode” key to switch to the function select menu.

Press mode key multiple times or use the up and down arrow keys to select a function.

  • Wait 2 seconds or press the-arrow key to enter the selected function.

Using the Head Side Torch Light

On either on or off status, click power key twice quickly to turn on and off LED torch light.

The LED torch light will turn off when the device is turned off. To continue to use the LED torch light when the device is off, users can simply turn it on.

The LED torch will turn off every time the device turned on. This is to avoid consuming all of the battery if LED is turned on accidentally.

  The head side LED is high brightness LED light. When the LED torch is on, never look straight it. Looking directly into the LED torch can cause eye burns or other accidents.


The ONVIF test function is designed to act as a 3 step trouble shooting guide. It combines Ethernet tests, IP settings, camera discovery, camera authorization, video display, PTZ control, camera settings, and more.

Press the mode key to enter function select and select the ONVIF TEST function. Wait 2 seconds or press the right arrow key (->). This will enter ONVIF Test Step 1.

ONVIF Test Step 1: Ethernet and IP Test

  1. User Interface

On this interface, blue bar is for network port 1 status information; green bar is for network port 2. The gray bar is IP test information.

The bottom light blue bar is the operate tips. Within the network port status bar:

Link Speed of Corresponding Port

When it is gray and the text reads “link down”, means no network connection.

When this icon is white, and the text is digits and characters, 10M/100M/1000M is the link speed, “FD” means full duplex mode, “HD” means half duplex mode.

The link speed can also be observed via the icon itself.

Ethernet Data Flow Monitor

This icon shows the current Ethernet traffic flow.

   is the outgoing data flow in b/s, kb/s, and mb/s.

is the incoming data flow in bi/s, kb/s, and mb/s.

Packet Loss Monitor

This icon is the packet transfer loss status. The displayed data shows the success rate. Normally this number is 100%.

The color of this icon color differs according to the success rate, as shown in the table below:

Color gray yellow Orange

POE Power Supply Status

This icon is for network port 1, indicating the POE power output status.

The first line of text is output mode:

12V: The device is outputting 12V and detecting PD at the same time.

  1. CLASI: This shows the classification of the remote POE device.

PSE 48V: The remote POE device is being powered.

The second line of text shows the output power in watts. When outputting power, the actual power consumption is decided by the remote device. The tester has a max power limit. When the remote device requires more power than max power, the output will terminate automatically.

POE Power Accept Status

This icon applies to network port 2, indicating the POE power acceptance status. The text displays the powering voltage.

IP Test Information (Gray bar)

The gray bar is the IP test information.

The IP setting has 3 modes: Static IP, DHCP request, and DHCP server.

  1. Operation
  2. 1. Connect to network or IP cameras. Several conditions:

① Connect to a Network Switch and 12 V Power IP Cameras.

Use a standard RJ45 cable to connect the switch or camera with network port 1 or 2. The network status will show on the corresponding network port bar and icons. The tester supports MDI/MDIX connection.

The camera can be powered using its own 12 V power adapter or using the tester’s 12 V/ 2A power output. When using the tester’s 12 V/2A output, use the 12 V output cable to connect the 12 V output port and the camera’s 12 V power port.

The tester supports a maximum output of 12V/2A. When the camera consumes more than 2A, the power output will terminate.

 Note: If there is a POE powered device connecting to network port 1, then the 12 V output is disabled. The POE power output has higher priority.

② Connect to POE. Switch and Charge the Internal Battery at the Same Time.

Use a RJ45 cable to connect the POE switch and tester network port 2 (green). The orange light on network port will turn on, indicating acceptance of the POE power. If the internal battery level is below 95%, the charge light will turn on.

Multiple ONWIF cameras can connect to a switch. Cameras can use their own power or POE power.

③ Connect with a POE Powered Camera.

Use a RJ45 cable to connect a POE powered camera and tester to network port 1 (blue). The tester will first detect the POE device and then supply power.

When powering POE device, 12 V output of the tester is disabled.

When a POE powered device requires more power than max power, the POE power output will terminate.

The tester PSE meets the 802.3af/802.3at standard. The maximum power is 25.5W.

  1. Setting IP Mode.

The tester supports 3 IP modes: static IP, DHCP request, and DHCP server. These 3 modes can be switched by pressing a key:

① DHCP Request Mode

This mode is suitable when connecting to a working network.

When entering the ONVIF test, the IP mode is set to DHCP request by default. Users can switch to this mode by pressing .

In this mode, the tester will try to find a DHCP service in the network and get an IP.

Upon success, the server assigned IP will show in the gray bar.

② DHCP Server Mode

This mode is suitable when connecting with a single IP camera that uses DHCP.

Pressing  the key will switch to DHCP server mode.

In this mode, the tester will set the local IP to static, start the DHCP server, and wait for a remote DHCP request. Be ready to assign an IP.

Note: If connecting to a working network that already has a DHCP server, this will cause conflict because of multiple DHCP servers, causing some devices to get incompatible IPs and network interference.


Pressing the “SCR” key will switch to full screen video display mode, and all display information will be hidden. The video image will cover most of the screen area. Due to width to high ratio differences, part of the screen could be black with nothing to display.

In full screen mode, use the keys to control PTZ.

Camera Settings

Press the set key to enter the camera settings screen.



Camera info Camera model, serial, brand and other information. This information cannot be altered.
Network Camera network settings like host name and DNS
System Reset camera, factory default, service ports, ONVIF discover enable
MainStream Camera main stream setting
SubStream Camera sub-stream setting. If the camera has more than one sub-stream, the name of sub-stream may change.
Eth0 Camera network port settings, including IP, gateway etc. For a multi-port camera, there may be more than one port setting and the name of port may also differ.

RS485 PTZ Control

On the analog video screen, pressing the set key will bring up the RS485 PTZ setting menu.

Use the up and down arrow keys to select an item, and the left and right arrow keys to adjust it.

The settings are as follows.

Protocol Select RS485PTZ protocol

The tester supports many PTZ protocols.

Baud Rate RS485 communication baud rate
Address Address of PTZ to control. Due to different camera vendor settings, the address may be offset by +/-1. Address range is dependent on the protocol.
Speed Expected PTZ speed, 1 % – 100 %
Set Preset Adjust this value, and then press the key to save the camera’s current position to its internal storage. This function is provided by the camera. Refer to the camera manual.
Go Preset Adjust this value, and then press the key. The camera will go to the corresponding pre-saved position at maximum speed. This function is provided by the camera, please refer to the camera manual.

RJ45 Cable TDR Test

This function is used to test an RJ45 cable using a TDR (Time Domain Reflection) analysis method. Connection status and cable length can be measured.

Connected, open, and short statuses can be detected, and cable length is displayed. The accuracy is within 1 meter. To measure a cable, only one end of the cable needs to connect to tester, and the other end should be left open.

Network Analysis (Network Tools)

Network analysis is a combination of several network tools, including Ethernet sniff, Sub-net list, and ping test.

Press the “Mode” key to select network analysis. Press the key or wait 2 seconds to enter network analysis. Elements on network analysis screen:

  1. IP Address and Mask Display: To change this setting, press the “set” key, jump to the IP setting screen, and then change the setting. DHCP and static IP are supported.
  2. Gateway and DNS Display: To change the setting, operation is the same as the IP settings.
  3. Ping Destination: When the bar is yellow, use the flip keyboard to edit. IPs and domain names are both supported.
  4. Tool Run-Time information display Area.
  5. Function Key Prompt.

When prompt is highlighted, the corresponding function is available. When the prompt dims, this means another function is running, and the correspond functions is not available.

Ethernet Sniff Operation

To use the Ethernet sniff function, network parameters or destinations don’t matter.

Press to  start.

Once Ethernet sniff is started, the tester will keep listing to the network, waiting for broadcast data, detecting MAC and IP addresses. Unlisted MAC and IP addressed will be added to the list.

The format of the list is XX-XXXX-XXXX-XXI.I.I.I; where XX is a MAC address in HEX, and I is an IP address displayed in decimal.

Most network devices broadcast data packets periodically, identifying their existence. The sniff function will detected this data and discover unknown network devices.

When connecting to an unknown setting and unknown IP unknown, first try using DHCP server to distribute IP to the device. If the device is not requesting an IP address, then use this sniff function to detect the device.

Detecting a device using the sniff function may take 3 to 60 seconds, according to the device broadcasting frequency, and the tester will not detect a device if it remains silent.

The sniff function is detecting broadcasting data packets, so devices of any sub-net and any kind could be found.

Note: The sniff function does not detect uni-cast (point-to-point) packets.

To exit Ethernet sniff, press the key.

List Sub-Net Function Operation

To use the list sub-net function, IP and mask should be setup, and the subnet mask should be 24 bits wide (that is the sub-net size of 256 devices).

When entering the network analysis function, a section of the screen will display the current IP and mask settings. If the settings are not as wanted, press the “set” key and change the settings in the IP setting screen.

After the IP and mask are set, press the 匣 key to start the sub-net list.

The sub-net list function will scan the whole sub-net. Devices being scanned must reply, so the discover rate is 100% if the device is operating normally. This sub-net list function will also measure the network latency, and display it in ms

The sub-net list display format is: XX-XX-XX-XX-XX-XXI.I.I.IN ms where XX is the MAC address displayed in HEX, I is the IP address displayed in decimal, and N is the network latency.

Compared to the network sniff function, this function cannot detect devices with different sub-net settings, but the same sub-net detection rate is 100%.

The sub-net list will take 1-10 seconds to finish.

To exit the sub-net list function, press the  key.

Ping Operation

To use the ping function, IP address, masks and destination are needed. If the destination is a domain, then DNS and gateway are also needed.

To setup IP, mask, DNS, and gateway, press the SET key, and setup on the IP Setting Screen.

To edit a destination, use the flip keyboard when the destination section is yellow.

When you are done setting IP, mask, and destination, press the key to start the ping operation.

The Ping test displays results in charts as follows.

Ping Average : 3 ms
 1 ms 10 7% **
3 ms 123 91% *************
10 ms 2 1% *
30 ms 0 0%
0.1 s 0 0%
0.3 s 0 0%
1 s 0 0%
3 s 0 0%
Lost 0 0%

The 1st row is the latency grade; the 2nd row is corresponding reply time; the 3rd row is the respond time ratio; and the 4th row is the latency chart.

To exit the ping function, press the  key.

System Upgrade

The tester software can be upgrade online.

In the device set screen, select “system upgrade,” the current software version will be displayed Press the key to enter the system upgrade screen as shown below:

Connect to an internet router using the RJ45 cable, and press the key to setup network settings as shown below:

If the network is using DHCP, the tester will automatically detect the IP settings. Otherwise, the IP settings should be entered by the user. Please consult your network manager.

After IP setup is complete, press the “SET” key to return. The device will connect to the software upgrade server and try to find a new software version automatically.

When a new version is found, the new version number and current version number will be displayed. Press the key to enter the download screen. The download process is fully automatic, and an integrity check is automatically executed upon download completion. After this process, the tester will return to the upgrade screen automatically.

An upgrade download may take seconds to dozens of minutes, depending on the network speed. Please use a broadband connection to upgrade. This will save you valuable time.

Upon download success, a “start upgrade” prompt will be displayed on the screen. Press the key to start the upgrade. The system will reboot automatically then enter upgrade screen. Press the SET key to start. Follow on-screen prompts to continue the process.

Confirm the battery level is at least 30%. It is a good choice to connect the charger when upgrading to avoid power loss during the upgrade process.

Do not open battery cover, remove the battery, or press the reset key while upgrading. This may cause system failure, and the device may not be able to boot up again.

USB Storage Mode:

Due to data sharing problems, the USB storage function is off by default. To enter USB storage mode, enter the device set screen then select the USB Storage function. The screen will look like this:

Use a USB mini-B cable to connect the tester to a computer. Further operation is the same as a common USB disk.

When using USB Storage, do not press the “mode” key or the power key. This will cause the USB storage device to be un-plugged from host computer, and you may lose data.

To disconnect the USB connection from a computer, eject or un-mount the disk from the host system before disconnecting the cable.

Audio Test:

The tester is equipped with an audio test function. It can be used to test microphones or other audio devices.

Use 3.5MM audio cable in accessories to connect audio device. Black clamp is earth connection, red clamp is signal connection. Please connect earth first, avoid large noise during connection. If the connection is successful and the tester power is on, audio will play out from internal speaker.


Additional information

Weight 1.1 kg

Content missing