Shore-to-ship two-way communication system, boat-to-ground bidirectional intercom system with 10-15 Mbps ethernet

Shore-to-ship two-way communication system is to set up a wireless high-speed video network communication system on shore and on the boat. It is used to meet the needs of Internet access, ការឃ្លាំមើលវីដេអូ, and voice communication in the area about 6 ទៅ 10 kilometers offshore.

Although our TX900 supports a range of 15 គីឡូម៉ែត្រ, the height of the transmitting antenna and the receiving antenna is very close to the sea level. Because there are waves in the sea, these will interfere with the wireless transmission system. If possible, the transmitter and receiver’s antenna must be placed as high as possible.

សំណួរគេសួរញឹកញាប់

Boat wireless video transmitter demand

សំណួ: I’m searching for an option to send 4 pieces of 1080HD live stream videos over wireless without the internet. It must be a smooth picture and I will install it on a boat. Boat to boat so it will be moving and I must be able to be 360 degrees around. តើអ្នកមានយោបល់អ្វីទេ??

មួយ: ប្រសិនបើ 4 IP cameras are on the same ship, we can connect them to the same transmitter through the network cable and a network switch. Their 4 cameras will have 4 IP addresses and share a network transmitter.

Our two-way broadband network transmission equipment based on the IP interface supports a maximum rate of 30 megabits per second. Just make sure there is a line of sight between the transmitter and receiver antennas to provide smooth video quality.

We use omnidirectional antennas for both transmitters and receivers, so even if the ship turns around or rotates 360 អង្សា, it is best to install the antenna on the top of the ship so that the video signal will not be interrupted without obstruction.

Our network broadband transceivers are designed for use by drones or large fixed-wing aircraft. Their speeds can reach more than 800 kilometers per hour, so there is no problem for our transceivers to be used on ships.

You need to tell us what is the maximum distance between these two ships.
Knowing the distance between the two ships, you need to consider the waves between the ships, which may block the transmission between the antennas, so the antenna should be installed at the highest point of the ship as much as possible.

សំណួ: Good morning are you able to provide a quote to supply a wireless video transmitter system, we operate a dredge and want to transmit video from shore to the dredge over a maximum distance of 5 គីឡូម៉ែត្រ. It is in a marine environment so it would need to be robust and also run on 12 volts with no internet connection.

Before introducing a specific model, our engineer has some questions below.

• 1. Do you need a one-way or two-way transmission system? ផ្លូវ​មួយ, means just transferring the video from the shore to the dredge. ពីរផ្លូវ, means sending and getting the video or data from one side to another side.
• 2. Is the camera on the shore or dredge?  and the receiver is on the shore or the dredge. We need to consider the special case of the transmitter or receiver.
• 3. There are often undulating waves in the ocean. How high can the transmitting antenna and receiving antenna be installed?

អតិថិជន: Apologies for the late reply, Please be aware that there is no internet connection available on the dredge.

• 1 – We would need a one-way with the camera transferring from shore to the dredge
• 2 – The camera would be on the shore at the end of the discharge pipe and the receiver and monitor would be on the dredge so can see what is happening on shore.
• 3 – We have attached a pdf with some pictures which show the ‘set up’. There is a mast located onshore as well.

យល់ព្រម, ផ្លូវ​មួយ, HDMI camera on the shore, the receiver on the dredge, transmission distance is 5km, បញ្ជូន, and receiver will be installed a special case, (មិន​ជ្រាប​ទឹក, ធន់នឹងការឆក់, anti-salt spray), ជាមួយ 3 pcs 1.8-meter length fiberglass antenna. (one for the transmitter, two for the receivers)

We recommended the below model, COFDM-908T-5W

Here is the test video for 10W at 20km.

We used the COFDM(DVB-T មាន) បច្ចេកវិទ្យា, which is similar to digital tv technology, with no need to use the internet. (The camera and transmitter are like a tv company transmitting tower, and the receiver is like a tv box at home)

For the maritime wireless communication environment, deploying MESH nodes on the shore base and ships can quickly establish a multi-hop broadband wireless network with high mobility, ប្រឆាំងនឹងការជ្រៀតជ្រែក, and beyond-line-of-sight transmission, providing voice, ទិន្នន័យ, and video between the shore base and the ship. Multimedia integrated transmission service.

The wireless private network is connected to the customs command center, and the supervised ships are connected to the shore-based base station wirelessly.

Supports real-time dynamic networking of ship formations at sea, frequency hopping anti-jamming capabilities greatly enhance the electromagnetic countermeasures of formations at sea, and self-healing properties ensure that the wireless network has tenacious vitality, and any node failure in the network will not affect the entire formation The operation of the network can be an “unbeatable maritime mobile network”.

Quickly build a self-organizing network without a center, fast and flexible networking between boarding law enforcement officers and ships, multi-hop automatic networking, fast self-healing, adapt to various complex maritime environments, and support multi-channel high-definition video.

manet IP mesh radio for long-range audio video 20km nlos, for internet sharing with the mesh radio link, internet sharing between sea and office.

អំពី 10 ships and just internet connection only place or install in the ship. We have our own internet dedicated provider, not from a cellular operator, so we want all ships that are nearby the seaports to have access to the internet. For bandwidth between 64kbps-1M bps, everyone can connect to the internet via wifi.

Default Frequencies 1400-1460MHz(350MHz-4GHz customizable) 
Channel Bandwidth 2M/5M/10M/20MHz/40MHz
RF Channel 2T2R
Output Power 43dBm(2x10W) 
ប្រព័ន្ធ WIFI(ស្រេចចិត្ត) 2.4G WIFI(2x100mw) 
Modulation Type: BPSK/QPSK/16-QAM/64-QAM/DSSS/CCK
Data Rate Up to 82Mbps
Network Capability 9 hops and no less than 64 nodes
ការអ៊ិនគ្រីប AES
RF Interface N F x2
PTT Interface(ស្រេចចិត្ត) LEMO 7-pin
4G(ស្រេចចិត្ត) Micro SIM x1 Electrical Characteristics

20W high RF power output

 Range up to 20 3 0km LOS

 Supports 100 240V AC wide voltage

 High bandwidth up to 82Mbps

 Supports AES encryption

 Supports HDMI input /output and LAN

 With dual antennas MIMO

 Supports up to 64 nodes MESH network

 Full IP duplex transparent data transmission

 Flexible networking and rapid deployment

 2U rack mount design

 With rugged aviation aluminum housing

Marine wireless video transmitter transmission

ប្រេកង់ធ្វើការ: 1.4GHz
កម្រិតបញ្ជូនឆានែល: 2.5មេហ្គាហឺត (តំណភ្ជាប់ឡើង), 10មេហ្គាហឺត (តំណខាងក្រោម)
ថាមពលបំភាយអតិបរមា: 33dBm
ម៉ូឌុល: OFDM
ក្រុមផ្កាយ: BPSK, QPSK, 16QAM
បញ្ជូនបន្តលេខកូដកែកំហុស: LDPC (1/2, 2/3, 3/4, 5/6)
របៀបពីរជាន់: TDD
Uplink throughput: 300ខេក (ច្រកសៀរៀល + ច្រកបណ្តាញ + តេឡេ)
Downlink throughput: 2Mbps ~ 8Mbps
ចំណុចប្រទាក់វីដេអូ: កំពង់ផែអ៊ីសឺរណិត, ច្រកសៀរៀល, PPM/SBUS
ការអ៊ិនគ្រីប: AES128/256
ទំហំ: 150X100X54mm
ទំងន់: 1159ក្រាម
តង់ស្យុងប្រតិបត្តិការ: 6វី ~ ១៦ វ៉
សីតុណ្ហភាពប្រតិបត្តិការ: -20℃~60℃
Interface options: កំពង់ផែអ៊ីសឺរណិត, ច្រកសៀរៀល
ចម្ងាយការបញ្ជូន: 5គីឡូម៉ែត្រ

អត្ថប្រយោជន៍

Support point-to-point (TDD) and point-to-multipoint applications (TDMA)
Excellent ground-to-ground transmission performance
Stable high-speed mobile communication performance
Reliable downlink in-band information transmission channel
ARQ retransmission and adaptive frequency hopping
latency ទាប
ការអ៊ិនគ្រីប AES
Customized for unmanned ships
Water cooling
ip65 waterproof
Image data control three in one
5KM long-distance wireless transmission

20គីឡូម៉ែត្រពីលើសមុទ្រ ឧបករណ៍បញ្ជូនវីដេអូឥតខ្សែ HDMI និងអ្នកទទួលការធ្វើតេស្តសម្រាប់ទូក ឬពីច្រាំងទៅកប៉ាល់

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