Audited Supplier
Kdwera 5W DMR two way radio DR-878
4000 Channels 90hours records transmitter time and Bluetooth optional
TDMA 2-time slot technology
Provide 2-slot communication which allows for 2 talk paths on one frequency at a same time without interfere with each other.It can double the utilization of frequency resources.
Recording function
Keep a detailed record of each call for some key situations, the content of each call is extremely important. For example, clear accountability communication, important event/activity review etc, recordings can be wonderful and important material.
4000 editable channel capacity
4000 channels can be allocated and used according to the demand. A large number of channels are convenient for many members to use the number of channels freely, which makes the communication of he whole intercom system more convenient and fast.
Repeater Roaming
The radio can automatically roam among all sites in the network and always stays connected. This delivers more efficiency and flexibility to your radio communications.
Superior Audio Quality
The radio equips an optimized powerful loudspeaker that can help users to hear clear sounds even in a noisy environment. Water-porting technology is also used to drain out any water that gets into the speaker cavity, ensuring the audio clarity is maintained. AI-based noise cancellation technology can decrease 30dB background noise and howling. No matter what noise environment the calling party is in, it ensures that the called party hears a clear sound.
Personnel Safety
Our intrinsically safe radio comes with features like Rescue Mode, Lone Worker and Emergency Alarm, to keep your staff safe and sound. Safety comes first!
Information Security
The ARC4 and AES256 encryption technologies keep your communications safe and private, optimizing your information security.
VFO mode
Radio support VFO manual programming to cater for some urgent communications. The frequency and parameter configuration of the A/B bands can be input independently through the keyboard of the speaker microphone.
Built in Bluetooth and APRS GPS (Optional)
To cater different demands of users, radio can be customzied to be built-in the Bluetooth and GPS function.
Basic functions:
·Private Call
·Group Call
·All Call
·Scan
·Kill
·Revive
·Battery Save Mode
·One-touch Call
·Remote Monitor
·Call Alert
·Records for 200 hours
·Prompt Tone On/Off
·Low Power Voice/lcon Prompt
·Support Voice Prompt for Channel Switching or Function-Option
·Two Programmable Buttons for long pressing are available on the side.
| Items | UHF | VHF |
| Frequency | 400-480MHz | 136-174MHz |
| Channel Zone | 16 | |
| Channel Capacity | 4000 (250 Channels/Zone) | |
| Antenna impedance | 50Ω | |
| Dimension(H*W*D) | 100x54x35mm | |
| Weight(W/battery) | 230g | |
| Li-pol battery | 2000mAh | |
| Rated Voltage | DC:7.4V | |
| Battery: The average battery life under 5/5/90 duty cycle, and using carrier squelch and TX high power 2000mAH li-pol battery Analogue:9.6hours/Digital:13.7hours | ||
Note:The battery working life may have little difference.
Battery capacity maybe change without notice,but the list is standard specification.
Receiver
| Items | UHF | VHF |
| Frequency | 400-480MHz | 136-174MHz |
| Channel Spacing | 12.5kHz/25kHz | |
| Frequency stability (-20ºC,+60ºC,+25ºC) | +/-.5ppm | |
| Analogue sensitivity | 0.3μV/0.25μV | |
| Digital sensitivity(5% BER) | 0.25μV/0.2μV | |
| Intermodulation | 65dB | |
| Adjacent channel selectivity | 60dB@12.5kHz/65dB@25kHz | |
| Spurious rejection | 65dB | |
| Rated audio | 500mw | |
| Audio distortion @rated audio | 3% | |
| FM hum &noise | -40dB@12.5kHz/-45dB@25kHz | |
| Audio response | +1,-3dB | |
| Conducted/radiated emission | -57dBm | |
Transmitter
| Items | UHF | VHF |
| Frequency | 400-480MHz | 136-174MHz |
| Channel Spacing | 12.5kHz/25kHz | |
| Frequency stability (-30ºC,+60ºC,+25ºC) | +/-0.5ppm | |
| Low Power | 1W | 2W |
| High power | 4.5W | 5W |
| Modulation restriction | ±2.5dB@12.5kHz/±5.0dB@25kHz | |
| FM hum& noise | -40dB@12.5kHz/-45dB@25kHz | |
| Conducted/radiated emission | -36dBm1GHz | |
| Adjacent channel selectivity | -60dB@12.5kHz/-65dB@25kHz | |
| Audio Response | +1,-3dB | |
| Audio Distortion | 3% | |
| FM modulation | 12.5kHz:11KOF3E 25kHz:16KOF3E | |
| 4FSK digital modulation | 12.5kHz data: 7K60F1D and 7K60FXD 12.5kHz audio: 7K60F1E and 7K60FXE 12.5kHz data and audio: 7K60F1W | |
| Digital vocoder | AMBE+2TM | |
| Digital agreement | ETSI-TS102 361-1,-2,-3 | |
Can work with our single frequency repeaters such as E-mesh86UV to extend communication distance.
U-PoC dispatching system
Can support our U-POC dispathing system. Co-work with our dispaching radio (such as LTE-CDR700UV or LTE-DR880UV), if the radio built in GPS and activated, then can be tracked and positioned via our dispatching system .
Kdwera Introduction
Kdwera is a professional walkie-talkie manufacturer and high-tech enterprise for wireless communication in southern China. Our company have awarded kinds of national honors and international certificates since 1988 established. We have approximately 15000 product area, and own FIVE JUKI SMT lines. Thus we can release 35,000 two-way radios every month.
We have an engineering team with more than 20 years of experience on walkie-talkie. Every radio is designed by ourselves, so we can provide fully technical supports. And welcome OEM and ODM service.
We use state-of-the-art machines for R&D such as signal generators, HP network analyzers, RF testing machines and more. We have our own molding factory to offer customized samples for you. By now we have about 30 models for your selections.
Our QC
Our QC team consists of over 15 members with fifteen years of experience on average. They carry out strict tests at every step. Every walkie-talkie tested and Write frequency before packed. We offer a one-year warranty for our products.
We have High-temperature tester, Low-temperature tester, drop tester, long-term battery life monitoring room, vibration tester, high-end digital test instrument etc.
Our Service
Timely response to customer's enquiry
Technology Communication
Guarantee after-sales service
https://kdweraradio.en.made-in-china.com/product-list-1.html
Warranty
Provides a 12-months warranty service for system products delivered by Kdwera, Spare parts for 6 months
Technical Support
We provide support services such as configuration, programming, etc. online (email, live chat, remote, etc.) or on-site
1. Q: Are you a manufacturer?
A: Kdwera owning a 15,000 square meters manufacturing base, more than 20 R&D engineers and 100 manufacturing workers, we are among the top manufacturers and designers in China mainland for two-way radios and systems.
2. Q: What is MOQ (Minimum order quantity)
A: 2 pcs for sample test first is recommended. The price policy sets MOQ for bulk order based on cooperation relationship with us as a distributor, dealer or premium dealer, or OEM cooperation. Please contact us for details.
3. Q: Do you accept customized?
A: Rebranding is acceptable and OEM&ODM is welcomed.
4. Q: Could you offer free sample to test?
A: Sample will be charged firstly, but will be refunded to you when you put bulk order on us.
5. Q: What is your lead-time for order?
A: 5-7 days for sample, 30-35days for bulk order, depends on the quantity for new inquiries. We do forecast for long-term business relationship partners.
6. Q: When can I find tracking information of sample?
A: We will send you the tracking number of sample within 2 days after delivery.
7. Q: How do you ensure your quality?
A: The product is designed and produced with good material in the industry. The company is ISO 9000:2008 certified and we make 100% OQC before delivery. Both above reasons ensure low defective rate for our products. We set warranty policy for products and accessories. Please contact us immediately if some unpredictable defectives happen. Thanks
Contracts us
Info@
