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Best Four Channels Duplex

AnyTone Dual Band Mobile Transceiver VHF/UHF Transmitter Vehicle Radio AT-5888UV

  • ☞* 50W/40W Full DualBand VHF/UHF Mobile Radio Transceiver! Frequency Range: VHF 136 - 174 MHz, UHF 400 - 512 MHz. 758 memory channels, full duplex....
  • ☞ * Full Twin Display and Receive, Cross Band Repeater mode too!.Display on a large LCD with adjustable brightness, convenient for nighttime use.....
  • ☞* Features CTCSS, DCS, ANI, DTMF, 2-Tone/5-Tone, Alphanumeric Display, 758 channels & more!758 programmable memory channels, identified by editing....
  • ☞ * Narrow Band compliant, Remote Mountable Faceplate, Lighted Keypad mic, Built-in Speakers in both Radio & Mic, Built-In cooling Fan, & More!....
  • ☞ * Compander function for decrease the background noise and enhance audio clarity, it can set compander ON/OFF per channel. Different band width....
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AnyTone Dual Band Mobile Transceiver VHF/UHF Transmitter Vehicle Radio AT-5888UV

  • ☞* 50W/40W Full DualBand VHF/UHF Mobile Radio Transceiver! Frequency Range: VHF 136 - 174 MHz, UHF 400 - 4520 MHz. 758 memory channels, full duplex....
  • ☞ * Full Twin Display and Receive, Cross Band Repeater mode too!.Display on a large LCD with adjustable brightness, convenient for nighttime use.....
  • ☞* Features CTCSS, DCS, ANI, DTMF, 2-Tone/5-Tone, Alphanumeric Display, 758 channels & more!758 programmable memory channels, identified by editing....
  • ☞ * Narrow Band compliant, Remote Mountable Faceplate, Lighted Keypad mic, Built-in Speakers in both Radio & Mic, Built-In cooling Fan, & More!....
  • ☞ * Compander function for decrease the background noise and enhance audio clarity, it can set compander ON/OFF per channel. Different band width....
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TRENDnet 5-Port Gigabit PoE+ Switch 31 W PoE Budget 10 Gbps Switching Capacity Data & Power Through Ethernet To PoE Access Points And IP Cameras Full & Half Duplex Black TPE-TG50g

  • ETHERNET PORT CONFIGURATION: 4 Gigabit PoE+ ports and 1 Gigabit port with LED indicators, provides a 10Gbps switching capacity to support edge network installations..
  • DESKTOP DESIGN: With a compact and lightweight metal housing design, this Ethernet switch is well-suited for desktop installations..
  • PoE+ POWER: A 31W PoE power budget supplies up to four Power over Ethernet devices. TPE-TG50g, delivers data and power over existing Ethernet cables to Power over Ethernet (PoE) devices such as access points and IP cameras..
  • PLUG-AND-PLAY: Simply power up the switch and plug in connected devices. No software to install or configuration needed..
  • DATA TRANSFER RATE: Ethernet: 10Mbps (half duplex), 20Mbps (full duplex) Fast Ethernet: 100Mbps (half duplex), 200Mbps (full duplex) Gigabit: 2000Mbps (full duplex).
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Cisco DPC3000 DOCSIS 3.0 Cable Modem Not compatible with Comcast

  • Bonded channels deliver downstream data rates in excess of 160 Mbps and upstream data rates up to 120 Mbps.
  • Up to four times faster than conventional single-channel DOCSIS 2.0 cable modem.
  • Backwards compatibility for operation in DOCSIS 2.0, 1.1 and 1.0 networks.
  • Four bonded downstream channels along with four bonded upstream channels.
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FrSky XJT 16ch Radio Transmitter Module - JR/Graupner Type Product

  • Advanced Continuous Channel Shifting Technology (ACCST SYSTEM) achieves highly reliable link in interference rich environments..
  • Smart Port – Full Duplex communication.
  • Easy to bind and instant link-up Excellent reboot times All channels failsafe.
  • Quick response Very smooth servo movement Error-free link, by using 48bits CRC algorithm upgradable.
  • Alarm on events of receiver (low battery voltages, poor reception, etc.).
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Tonysa PCI Sound Card 4.1 Channel Computer Desktop Built-in Sound Card Internal Audio Card Stereo Surround CMI8738 Support Duplex Playback and Recording

  • MULTIPLE FUNCTION - This card supports music synthesizer, traditional sound card, and supportsfull duplex playback and recording..
  • WIDELY APPLICABLE - Support for 98 / for Windows2000 / XP / NT signal voltage (0.5V~5V)..
  • FOUR-CHANNEL STEREO SOUND - Support 4-channel surround sound output, support DLS sound library technology, support A3D 1.0 and DS3D, compatible with DirectSound 3D and EAX sound effects..
  • SUPPORT CMI/HT8738 CHIP - The chip's signal-to-noise ratio reaches 120dB, PCI plug-and-play interface-full duplex playback and recording-HRTF 3D spatial positioning sound effects, supports dircet sound 3D and A3D interfaces..
  • SUPPORT DIRECT MUSIC - SPDIF digital audio indicators: 24-bit stereo, 44KHzsound sampling recording and playback, 120dB sound quality full duplex playback recording..
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4MS QCD Quad Clock Distributor V2 Eurorack Synth Module

  • Four CV-controlled Clock Divider/Multipliers.
  • Tap tempo button and five sync'ed clock outputs make the QCD perfect for head-of-the-chain "Master" clock module.
  • Tap clock output runs at the tapped tempo (even if other channels are being clocked externally).
  • Create complex rhythmic patterns by patching multiple channels into each other's Div/Mult CV and Reset.
  • Each of the four channels has an independent clock IN, OUT, Reset and Div/Mult CV.
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Telecom Fiber Optic Ethernet Vertical Color Code T-Shirt

  • Cable made with Corning Laser-optimized Multimode OM3 50/125 Fiber | Riser OFNR Cable Jacket.
  • Tight-buffered Zipcord Cable with Short Boots | Plug and Play Durable LC Duplex Fiber Connectors.
  • High Quality Guarantee: 100% Inspection and Test on Insertion Loss and Return Loss.
  • Easily Identify Fiber Channels with Color-coded Heat Shrink Tubing | Yellow to Yellow, White to White.
  • High Quality Fiber Patch Cable for VCSEL Laser Network Equipments such as SFP+ Transceivers, Ethernet Switches, Media Converters.
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OWNZNN Intercoms Wireless for Home [Upgraded 2022] Hand Free Intercom Real-Time Two Way Communication Wireless Intercom System 18 Channel Intercom 4921 Feet Range for Office House Hotel(2 Pack)

  • ... communication more stable and confidential. Upgraded 2022 intercom for elderly communication range is about 4,921 feet..
  • 【Easy to Operate】Wireless intercoms for home can start communication immediately. We set it up in advance to make it more convenient for you to use Intercom. Hands free OWNZNN intercom has 18 channels (made of Advanced anti-interference technology) and 2 secret digital codes and is the most trusted intercom system for home and office..
  • 【Multi-Function Intercom】OWNZNN intercom has 5 main functions: Full Duplex function, Good Range, Clear Sound, Hands-free, and Group call to meet your different communication requirements in different situations. Group function (conference call) can call all the stations in the intercom system. Hands-free intercom allows real time talk back and forth, which is convenient to take care of the elderly and pregnant women..
  • 【Wide Using Range】The two way communication of the full-duplex intercom is perfect for room-to-room, department-to-department use. Whether you work in the office or work at home, wireless intercoms for home communication are stable and clear. This house intercom system wireless is widely used in homes, offices, hotels, restaurants, etc..
  • 【OWNZNN Intercom Package】This interc....
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Roland BA-330 PA System, Black

  • All-in-one portable digital PA system suitable for use anywhere with powerful high-quality stereo sound for audiences of up to 80 people.
  • No setup required, just plug in and go! Powered by AC power or eight AA batteries..
  • Four custom-designed 6.5" speakers and two tweeters for wide stereo projection with built-in effects: EQ, reverb, delay, and wide (on/off per channel).
  • Four-channel configuration: two channels for mic/instruments plus two channels for stereo inputs, Stereo Aux input with dedicated volume-control knob.
  • Advanced Intelligent Anti-Feedback function.
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UNI-T UTG962 + UTD2152CEX, Function Generator and Oscilloscope Kit

  • MSO3000E not only has 4 analog channels, but also provides 16 digital channels to accurately capture and display digital level signals and bus logic status.
  • Built-in dual-channel 50MHz arbitrary waveform generator function, integrating oscilloscope, logic analyzer and signal source into one, bringing you a more efficient test experience..
  • Rich trigger function to meet more test conditions, and the time base of each channel is independently adjustable, which is convenient for users to observe four signals with large frequency differences at the same time..
  • It has a fast numeric keyboard to input the required data quickly and effectively, and it has an independent 4-window display to bring a more efficient user experience..
  • 70Mpts storage depth per channel, while observing four channels of signals at the same time, it can maintain the highest sampling rate for a longer period of time, without losing any waveform changes, and can also analyze waveform details.
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Duplex Jack Phone Wall Adapter-1 to 2 Modular Wall Jack Phone Line RJ11 Converter Adapter Splitter for Home Office ADSL DSL Fax Model Cordless Phone System 4pcs

  • Easy to use：Duplex in-wall adapter,plugs the devices into into the Duplex Wall Jack Adapter.
  • Use For: The Phone Line Splitter Adapter is For Phones, Answering Machines, Fax Machines, Modems, Caller ID, Many More Applications.
  • Material:The Phone Jack Splitter is made of durable plastic with high hardness, durable and safe..
  • Package:includes four pieces of phone line adapter for 2 lines.
  • Warranty: 1 year,When you are dissatisfied with the product, you can contact us at any time.
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One Man's Opus: A Survival and Preparedness Story

  • Charger Tester Analyzer For Li-ion (Lithium ion) NiMH or NiCd rechargeable batteries..
  • Four indepentent channels can be programmed individually or all together. Charge, discharge, condition or analyze one to four Li-ion, NiMH or NiCd rechargeable batteries..
  • Adjustable charging rate from 200 to 2000 mA. (1000 mA max 4 channels) Negative delta V (-dV) full charge detection for NiMH/NiCd. CC/CV for Li-ion rechargeable cells..
  • Back lighted LCD Digitally displays capacity, voltage, time elapsed and current. Five modes of operation for each channel: Charge: Discharge: Discharge Refresh: Charge Test: Quick Test:.
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