| Customization: | Available |
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| Battery Type: | None |
| Certification: | CE, FCC, ISO, RoHS |
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FEATURES AND FUNCTIONS:
The Analog Mobile Ham Radio Base Station Kit from QYT KT-7900D. Upgraded version of KT-8900D.
The QYT KT-7900D offers up to 25 watts VHF and 20 watts UHF operation in High output mode. It features 200 Channels, with CTCSS and DSC, channels scan, DTMF technology and exteral speaker/PTT. It includes Lone worker mode, an emergency alarm and VOX capability.
Excellent performance in outdoor sports, property management, taxi deployment, construction sites, self-driving, cooperation, firefighting deployment industry.
The KT-7900D has an LCD display, programmable function keys on the console, a hand microphone with programmable keys, a built-in LEDs and a DTMF keypad.
The QYT KT-7900D has outstanding performance in the outdoor sports, property management, taxi deployment, construction sites, self-driving, cooperation and firefighting deployment field.
The QYT KT-7900D is also repeater capable and compatible with all brand analog walkie talkie and mobile ham radios.
Power cable besides the standard cigarette lighter power supply, we also have the Adapter which use household electricity consumption input voltage of 220-240V AC/DC and an output voltage of 13.8V DC±15%.
USB Programming Cable to connects your QYT radios to your computer and software to programming your radio!
| General Specifications | ||
| Frequency Range | VHF:136-174MHz(220-260MHz) UHF:400-480MHz(350MHz-390MHz) |
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| Channel Capacity | 200 channels | |
| Channel Spacing | 25KHz, 20KHz, 12.5KHz | |
| Channel Step | 2.5KHz, 5KHz, 6.25KHz, 10KHz, 12.5KHz, 15KHz, 25KHz | |
| Working Voltage | 13.8V DC ±15% | |
| Squelch way | CARRIER / CTCSS / DCS / 5Tone / 2Tone / DTMF | |
| Frequency Stability | ±2.5ppm | |
| Operating Temperature | -20ºC~+60ºC | |
| Dimension(W*H*D) | 98(W)*43(H)*126(D)mm | |
| Weight | 448g | |
| Receiver (ETSI EN 300 086 Standardized.Test) | ||
| Wide Band | Narrow band | |
| Sensitivity | ≤0.25μV | ≤0.35μV |
| Channel chioce | ≥70dB | ≥60dB |
| Intermodulation | ≥65dB | ≥60dB |
| Spurious Rejection | ≥70dB | ≥70dB |
| Audio response | +1~ -3dB(0.3~3KHz) | +1~ -3dB(0.3~2.55KHz) |
| Signal to noise ratio | ≥45dB | ≥40dB |
| Audio distortion | ≤5% | |
| Audio output power | ≥2W±10% | |
| Transmitter (ETSI EN 300 086 Standardized.Test) | ||
| Wide Band | Narrow band | |
| Output power | 25W/20W (VHF / UHF) | |
| Modulation Mode | 16KΦF3E | 11KΦF3E |
| Channel Power | ≥70dB | ≥60dB |
| Signal noise ratio | ≥40dB | ≥36dB |
| Parasitic harmonic | ≥60dB | ≥60dB |
| Audio response | +1~ -3dB(0.3~3KHz) | +1~ -3dB(0.3~2.25KHz) |
| Audio distortion | ≤5% | |
Q: Why sometimes your partner's voice is intermittent?
A: Please note that you are within normal communication range, If you want use radio in distance range, please change other antenna with a bigger output power.If still same problem, please send the radio back to your authorized dealer repair.
Q: Can't turn on talky and even it is switch on, it often shuts off automatically?
A: Please check the battery contacts on the walkie talkie. If it is broken or twisted, please return the radio to your authorized dealer for maintenance during warranty.
Q: Can't transmit or receiver signal with other members?
A: First, please verify that the channel frequency and the CTCSS, you are used the same as those of your group members. Please make sure that you and your partners are all within the radio coverage, If the channel frequency and the CTCSS are the same.
Q: Why sometimes received voice from other groups?
A: Two way solutions.You can change another channel or change another channel frequency by PC software.
Q: Which is better -VHF or UHF?
A: epends on the terrain. The UHF signal is attenuated or absorbed by foliage, rough terrain and trees, VHF does better outdoors. The VHF has difficulties penetrating steel and concrete, UHF does better in and around buildings. If you use the radios in both environments, we prefer using UHF band.
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