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DDMALL HEM-2KW User Manual

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HEM-2KW User Manual
V1.0 (Update Time: 2025-04-02)

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Summary of Contents for DDMALL HEM-2KW

  • Page 1 HEM-2KW User Manual V1.0 (Update Time: 2025-04-02)

  • Page 2: Table Of Contents

    9. Parameter Settings ............15 9.1 Log in to Web Setting Page ..........15 9.1.1 Log in to the HEM-2KW Web UI in AP Mode AP ....... 16 9.1.2 Log in to the HEM-2KW Web UI in Client Mode ....... 16...
  • Page 3 10.2 Users Cannot Log in to the HEM-2KW Web UI ......56 10.3 The HEM-2KW Has No Video Input ........58 10.4 The Decoder Has No Video Output When Pulling the HEM-2KW Stream ..59 10.5 There is No Image Output when Performing RTMP Live ....59 10.6 Video Stutters ............

  • Page 4: Hem-2Kw Introduction

    1080p@30Hz, 24M. The encoder supports H.265 and H.264 high-efficiency codec with built-in stream protocols including SRT, HLS, RTP, RTSP, RTMP/RTMPS, and UDP/TCP etc. The HEM-2KW is perfect for those live productions, which need 2K video long-haul wireless transmission or broadcasting, such as live lecturing, outdoor live streaming, and done aerial photography etc.

  • Page 5: Parameters

    Internet so that all encoders can be unified managed. 13. Built-in 5G+2.4G dual-band Wi-Fi antenna: deliver high-definition, stable and smooth wireless video transmission. 14. Support device online update. 3. Parameters 3.1 General Power Supply 5V/1A（USB-C powered） Power Consumption Work Temperature -10~50℃（14~122℉）...

  • Page 6: Audio Parameters

    The points people care the most in the outdoor live broadcasting are network issue and video transmission method. The HEM-2KW is borne in such concerns. It is a professional and portable hardware HDMI streaming solution for outdoor live broadcasts. in the help of our IP-based encoder, the live broadcast won’t be limited by space.
  • Page 7 2, Use the mobile hotspot of a tablet/laptop/mobile phone/portable router to let the encoder join the Internet. 3, Encoder encodes and compresses the camera video into IP stream and push to live platform for broadcasting. Picture 1...

  • Page 8: Packing List

    5. Packing List Picture 2 6. Device Appearance Introduction Picture 3 6.1 Indicator Status Status Red Light Green Light No power supply Solid Device is normally powered in Client mode, Device is in Client mode and has connected to but it hasn’t connected to Wi-Fi router yet. Wi-Fi router successfully.

  • Page 9: Set Button Introduction

    1, By default, the HEM-2KW is in AP mode. Users can switch the encoder to Client mode by pressing the device button for about 3s until the indictor turns to red, and the device will search the Wi-Fi saved automatically.

  • Page 10: Reset Factory Settings

    1, Plug the HEM-2KW HDMI input to the HDMI port of the signal source. 2, The indicator lights up in solid red when the HEM-2KW is powered properly, and turns to flash in yellow after about 20s (by default, the HEM-2KW is in AP mode).

  • Page 11: Network Settings

    1. In AP mode, the indicator of the HEM-2KW flashes in red. If the encoder is not in AP mode, please press the device set button for about 3s until the indicator flashes in red to switch it to AP mode.
  • Page 12 AP mode SSID of the HEM-2KW. Users please change the other mobile phone or laptop to connect the HEM-2KW SSID to load the encoder web UI in AP mode.
  • Page 13 the encoder need to connect in Client mode. Picture 7 Picture 8 1） Select the Wi-Fi SSID of the mobile hotspot or Wi-Fi router from the Nearby WiFi List...
  • Page 14 If the SSID of the hotspot or router isn’t hidden, but users cannot find it on the list of  Nearby WiFi List, please click the Refresh button on the upper right side. The HEM-2KW will re-search the surrounding Wi-Fi.
  • Page 15 IP to the HEM-2KW; or switch the encoder back to AP mode and log in to the web UI to check the assigned Client mode IP on the Network page.
  • Page 16 Wi-Fi successfully. Please switch the encoder back to AP mode and log in to the web UI to check the SSID and Password settings on Network/Client page. Finally click “Apply” before switching back to Client mode again. 8. When the HEM-2KW works in Client mode, the control terminal such as mobile phone or...

  • Page 17: Wifi Connection Mode

    HEM-2KW, and IP address must be in the same network segment as the encoder. It is vital that users can log in to the HEM-2KW web UI for configurations (type the IP address of the HEM-2KW in Client mode to log in to web UI).

  • Page 18: History Mode

    9.1 Log in to Web Setting Page No matter the HEM-2KW is in AP mode or in Client mode, users can log in to its web UI for parameter configurations through the browser of the control terminal such as mobile phone, laptop, or computer etc.

  • Page 19: Log In To The Hem-2Kw Web Ui In Ap Mode Ap

    If the Client mode IP is set to DHCP, users need to log in to management interface of the  DHCP server (usually log in to manage page of the router) to see the assigned IP address to the HEM-2KW; or users can switch the encoder back to AP mode, and log in to the...

  • Page 20: Status Introduction

    HEM-2KW web UI in AP mode to check the assigned IP on the Network page. If the Client mode IP is set to Static, please remember the Client IP address manually  configured, and use it to log in to the encoder web UI. If users forget the Client IP address configured, please switch the encoder back to AP mode and log in to web UI to check the value on the Network page.
  • Page 21 HDMI cable to exclude the problem. ③ Is the HDMI output resolution of signal source within the supported range of the encoder? The HEM-2KW can support maximum input resolution of 1920*1080@60Hz. 2. Primary Stream It shows the Audio, Video, and URL parameters of the Primary Stream (Picture 9).

  • Page 22: Audio Settings

    Picture 8 9.3 Audio Settings Click “Audio” icon on left menu on the web UI to direct to Audio page, where users can modify audio parameters according to the application requirements and click “Apply” to save the parameter settings.

  • Page 23: Input Mode

    The HEM-2KW supports HDMI audio input. 2、Encoding Type Users can choose AAC or G711u as audio encoding type. Note: when the encoder performs RTMP live streaming, please set the HEM-2KW Encoding Type to AAC. 3、BitRate It is the audio encoding bit rate. When the Encoding Type is AAC, the bitrate can be adjusted within the range of 32Kbps-256Kbps;...
  • Page 24 Stream to some extent. We will recommend the total bitrate value of the Primary Stream and Secondary Stream not to exceed 24M. 2. The wireless video transmission effect of the HEM-2KW is heavily affected by the Wi-Fi network and surrounding network environment. Users need to adjust the Video encoding parameters according to the actual application environment to achieve the best video effect.

  • Page 25: Encoding Setting

    “Apply” to save corresponding Video parameter settings. 9.4.1 Encoding Setting Picture 11 1, Input Status: Display the resolution of input signal source. If there is no signal input, it shows “No Signal”. 2, Encoding Type: H.265 and H.264 can be selected 3, Frame Rates: Mainly affect the video smoothness (higher the frame rate, smoother the video).

  • Page 26: Osd Settings

    and Secondary Stream support maximum encoding output of 1920*1080. 7, Compression Profile: It is the video compression level. There are three level available for H.264—Baseline, Main, and High; while H.265 is fixed at Main level. 8, Bitrate Control: VBR, CBR or FixQP are available. The default value is CBR. When users conduct RTMP live streaming, recommend to set the Bitrate Control to CBR.
  • Page 27 3） Location X/Location Y: Adjust the text position displayed on the screen. The value of X and Y are the position of the first letter of text label. For example, the content is “DDMALL”, and we set X and Y value to [100, 100], that means [100, 100] is the position of the first letter “D”.
  • Page 28 4）Font Size: Adjust the Text font size. 5）Font Color: Set the color of the text. 6）Alpha: Set the opacity of the text. 7）Click “apply” after finishing the configuration. The settings take effect then. 8）Click Apply, and the webpage prompts “Change Setting Successfully”. It means the settings are finished and take effect.

  • Page 29: Network Settings

    HEM-2KW needs to connect in Client mode and set the Client mode IP address. Picture 24 1） Select the SSID of mobile hotspot or WiFi router the HEM-2KW needs to connect in Client mode from the Nearby WiFi List. 5G network is preferred.
  • Page 30  Nearby WiFi List, please click the Refresh button on the upper right corner. The HEM-2KW will re-search the surrounding Wi-Fi. 2） Password: If the hotspot of Wi-Fi is encrypted, please check Yes in the Security box and type the password of the hotspot or Wi-Fi in the Password box.

  • Page 31: Network/Access Point

    IP address assigned to the HEM-2KW; or users can switch the HEM-2KW back to AP mode, and then log in to the encoder’s web UI to see the Client mode IP address obtained on the Network page.

  • Page 32: Rtmp Settings

    Picture 27 1, Network Name(SSID): the HEM-2KW’s SSID in AP mode. By default, the SSID is HEM2KW, users can modify it accordingly. 2, Password: the SSID’s password of the HEM-2KW AP mode. By default, it is 12345678, users can modify it accordingly.
  • Page 33 Stream URL (Server URL) and Stream key (Stream Key). 3, Log in to the HEM-2KW web UI, click the RTMP icon to enter the RTMP setting page, paste the Server URL and Stream Key to the corresponding field on the encoder’s page. Users then click Start to go live streaming.
  • Page 34 Picture 14 1), RTMP/Primary Stream NO. 1 & NO. 2: Configure the stream settings for the 2 channels of the Primary Stream. 2), RTMP/Secondary Stream NO. 1 & NO. 2: Configure the stream settings for the 2 channels of the Secondary Stream. 3), Server URL: The URL address that the encoder pushes stream to.

  • Page 35: Youtube Live Streaming Settings

    Picture 15 6), Status: Display the connection status of RTMP live. 7), Start: Start live streaming. The “Connecting” status means it is connecting to the live platform; the “Connected” status means the encoder has connected to live platform successfully and is pushing stream. 8) Stop: Stop live streaming 9) Save: Save RTMP live streaming parameters.
  • Page 36 4. Paste the Stream URL and Stream Key provided by YouTube to the corresponding field of the RTMP page on the HEM-2KW setting page. For example, fill in the Stream URL and Stream Key to the RTMP/Primary Stream NO. 1 field. It means the first channel of...
  • Page 37 Picture 32 5. Click Start to push stream to YouTube. When a “Connected” status is shown, it indicates the encoder is pushing stream successfully. 6. On the page of YouTube Live streaming, users can see the live streaming video. Picture 33...

  • Page 38: Facebook Live Streaming Settings

    9.6.3 Facebook Live Streaming Settings 1. Open Facebook webpage, log in to your account, and click “Live video” to enter “Create Live Video” page. Picture 34 2. Click “Set up live video” under the “Go live” section to enter Facebook Stream Setup page. Picture 35 3.
  • Page 39 4. Log in to the HEM-2KW web UI and direct to RTMP setting page. 5. Paste the Stream URL and Stream key provided by the Facebook to the corresponding field on the RTMP setting page of the HEM-2KW. For example, paste to the field of RTMP/Primary Stream NO. 2, that means the 2 channel of the Primary Stream will be used for pushing RTMP stream.

  • Page 40: Misc Stream Settings

    6. Click Start to push stream to Facebook. When the Status is “Connected”, it means the encoder is pushing stream successfully. 7. On Facebook Stream Setup page, users can watch the live streaming video in the Video frame. Picture 38 9.7 Misc Stream Settings Click Misc Stream icon on the left menu to direct to Misc Stream page.

  • Page 41: Rtsp

    9.7.1 RTSP Picture 169 1, Stream Protocol: Select RTSP 2, URL 1 Port: By default, the Primary Stream port is 8554 while the Secondary Stream port is 8553; Users can modify the value (port value range 1-65535). Recommend to use the default port number.
  • Page 42 URL 2: TS packaging  Choose URL 1 or URL 2 for decoding is enough. Recommend not to use them  simultaneously. Because it uses more encoder’s CPU resources so that it may affect the video transmission effect. 6, Authentication: The encryption setting of RTSP video stream. If users want to encrypt the video, please enable Authentication, and set username and password.
  • Page 43 Picture 41 Note: 1), RTSP Unicast supports pulling up to 8 streams simultaneously. If users wish to pull more streams, recommend to use RTSP Multicast, which can pull up to 200 streams simultaneously. But users must make sure that the router supports Multicast function. 2), The encoder’s Multicast IP range: 224.0.0.0-239.255.255.255 3), The URL 1 and URL2 contents for RTSP Multicast are same with URL 1 and URL 2 for RTSP Unicast, and...
  • Page 44 Picture 42 3), Click “Network” on the “Open Media” page, paste the URL1 or URL 2 of the encoder to the VLC URL field, and click “Play” to play the video. Picture 43...

  • Page 45: Udp

    9.7.2 UDP Picture 44 1, Stream Protocol: Please chose UDP 2, Destination IP: If the Multicast IP is filled in (range 224.0.0.0-239.255.255.255), UDP Multicast is used for video transmission. All the decoding terminals in the Multicast IP range can receive the video stream from the encoder; if a specific encoder’s IP address is filled in (such as 192.168.1.65), then UDP Unicast is used for video transmission.
  • Page 46 For example : UDP multicast : When the destination IP is 239.255.17.19 with port value 8541, then the URL will be udp://@239.255.17.19 :8541 UDP unicast : Whe the destination IP is 192.168.1.65 with port value 8541, then the URL will be udp://@192.168.1.65 :8541 Note: if users use a decoder or decoding software to pull streams, please make sure the decoding terminals are in the same local area network as the encoder, and the IP addresses is...

  • Page 47: Srt

    Picture 46 9.7.3 SRT Firstly, SRT has 3 modes to set up SRT sessions for video transmission: caller, listener and rendezvous. When the encoder is set to caller mode, the decoder need to be listener mode, and  then the encoder initiates SRT session. When the encoder is set to listener mode, the decoder need to be caller mode, and ...
  • Page 48 SRT session. The source and destination must be set to rendezvous mode. Table 6 We would use the HEM-2KW and vMix to illustrate how to establish SRT communication as follows. Note: the computer running vMix software must be in the same local area network as the encoder, and the IP addresses must be in the same network segment.
  • Page 49 ① Stream Type: Select SRT(Caller); when the encoder is Listener, then the vMix need to be Caller. ② Hostname: Type the IP address of the Listener (that is the Client mode IP address of the HEM-2KW). ③ Port: The Source port value as the encoder (Listener) ④ Latency(ms): Same latency value as the encoder (Listener).
  • Page 50 If the encoder Encryption is set to encryption, then users need to type corresponding password here. ⑥ Click OK to finish vMix settings. The vMix can receive and play the video stream from the encoder. Picture 18 Picture 50 2. Set the HEM-2KW to be SRT Caller 1）HEM-2KW Settings...
  • Page 51 Picture 51 ① Stream Protocol: Select SRT ② Mode: Select Caller ③ Destination Address: srt://listener device IP address (IP address of vMix server here for illustration) ④ Destination Port: Same value as the port value of Listener (here 5000 for illustration) ⑤...
  • Page 52 for illustration here. ⑧ Bandwidth Overhead: Recommend to use the default value 25%, the higher value, the more stable SRT transmission, but the higher bandwidth will be occupied. ⑨ Payload Size: It affects SRT transmission efficiency. Recommend to use default value 1316. Users can adjust it if necessary.
  • Page 53 Picture 53 3. Set the HEM-2KW to be SRT Rendezvous 1）HEM-2KW Settings Picture 54...
  • Page 54 ① Stream Type: Select SRT(Rendezvous); the encoder is Rendezvous, then the vMix need to be set to Rendezvous. ② Hostname: Type IP address of the encoder (it is the Client IP address of HEM-2KW here ). ③ Port: Same value as the Destination Port of the encoder.

  • Page 55: Hls/Http

    encoder. Picture 55 Picture 56 9.7.4 HLS/HTTP When the encoder performs HLS/HTTP video transmission, users just need to open Safari browsers on terminal devices such as iPhone, iPad, and type the HLS/HTTP URL of the encoder on the web address field to watch the video stream from the encoder. No additional decoding software or players are required any more.
  • Page 56 Picture 57 1, Stream Protocol: Select HLS/HTTP; 2, Click Start to perform HLS transmission, and copy the HLS/HTTP URL; 3, Open the Safari browser on the iPad, and paste the encoder’s HLS/HTTP URL to watch the video from the encoder. Picture 19...

  • Page 57: System Settings

    9.8 System Settings Click System icon on the left menu to enter the System page, where users can see the HEM-2KW device information, modify device name, upgrade firmware, reboot the device, reset factory settings, and modify the login credentials 9.8.1 System/Device info Picture 20 Device name: Type the custom device name and click Apply to take effect.

  • Page 58: Faq

    1, Check whether the HEM-2KW is powered properly and the indicator lights up? 2, Check the indicator status of the HEM-2KW to make sure it works in AP mode? 1）Indicator flashes in red: AP mode...

  • Page 59: Users Cannot Log In To The Hem-2Kw Web Ui

    10.2 Users Cannot Log in to the HEM-2KW Web UI When the HEM-2KW is in AP mode or Client mode, users can log in to the encoder web UI through the control terminal such as mobile phone, laptop, tablet etc. to set parameters.
  • Page 60 HEM-2KW connects) management page to see the IP assigned to the HEM-2KW; or users can switch the HEM-2KW to AP mode and log in to the web UI to see the Client IP on the Network page.

  • Page 61: The Hem-2Kw Has No Video Input

    3）Please check whether the HDMI connection between the signal source and the HEM-2KW is proper? Pull off the cable and re-plug to see how it goes; check whether the HDMI cable is damaged? Users can change the other HDMI cable to test.

  • Page 62: The Decoder Has No Video Output When Pulling The Hem-2Kw Stream

    1. Please check whether the HEM-2KW is in Client mode, and it has connected the mobile Wi-Fi hotspot or Wi-Fi router successfully (the indicator is in solid green or flashes in green). 2. Log in to the HEM-2KW web UI to check whether the video resolution and preview status is normal.
  • Page 63 Please refer to 10.3 The HEM-2KW Has No Video Input to exclude signal source input problem. 2）Please set the encoding type to H.264. almost the live platforms cannot support H.265.

  • Page 64: Video Stutters

    10.6 Video Stutters 1. The wireless video transmission effect is greatly affected by the connected Wi-Fi network and surrounding network environment. Recommend to use 5G network for video transmission. 2. If users enable Secondary Stream, it will affect the Primary Stream video transmission effect.
  • Page 65 Picture 61 Picture 62...
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