Wholesale kydera dmr DM-990 tdma digital walki talki
General Specification of dmr tdma
Function characteristics:
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Ø Individual Calling Ø Group Calling Ø General Calling Ø Stun Ø Recents Ø Contacts Ø GPS Status(optional)
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Ø SMS Ø Remote sensing (optional) Ø Scan Ø Status information Ø Activation Ø System settings and telemetry
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Technical performance:
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Ø Menu Mode Ø VOX Ø Keypad Ø 107 DCS Ø 50 CTCSS Ø LCD Display Ø PC Programmable Ø Priority Scan Ø Channel Naming Ø Li-ion Battery Pack Ø Busy Channel Lockout Ø Multiple Call Tones+1750Hz |
Ø Hi/Low Power Ø Time-out Timer Ø Low Battery Alert Ø PC Programmable Ø Frequency/Channel Scan Ø Battery Strength Indicator Ø Selectable Squelch Level Ø CO/TO/SE Scan Switchable Ø Programmable Greeting Message Ø Selectable Name/Frequency Display Mode
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Specification |
Model |
DM-990 |
DM-990 |
Frequency Range(MHz) |
VHF |
UHF |
136-174MHz 245-260MHz |
350-390MHz 420-520MHz |
Channel |
512 |
PLL Channel Spacing |
12.5/25KHz |
Battery Voltage |
7.4V DC(Li-ion) |
Antenna Impedance |
50Ω |
Temperature Range |
-20℃~+60℃ |
Frequency Stability |
±2.5PPM |
Case Size |
126×56×37mm |
Weight (w/Battery) |
400g |
Packaging |
Gift box (unit body together with the accessories) |
Compatible With American Military Standard(MIL-STD-810C/D/E) |
Receiver(Measurements made per TIA/EIA-603) |
First IF(MHz) |
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Second IF(KHz) |
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Sensitivity(12db SINAD) |
0.2(W)/0.25(N) |
Squelch Selectivity |
0.15(W)/0.2(N) |
Adjacent Channel Selectivity |
≥65dB(W)/≥60dB(N) |
Intermodulation |
≥65dB |
Spurious Rejection |
≥65dB |
Image Rejection |
≥65dB |
FM Ham And Noise |
≤45(W)≤40(N) |
Modulation Type |
16KOF3E/11KOF3E |
Operating Bandwidth |
≤±7KHz/≤±5KHz |
AF Output |
0.5w@4Ohms |
Audio Distortion |
≤3% |
Transmitter(Measurements made per TIA/EIA-603) |
RF Power Output |
5W/4W |
Modulation Type |
F3E |
Maximum Deviation |
≤5.0(W)/≤2.5(N) |
Spurious Emission |
≤65dB |
Modulation Distortion |
≤5% |
FM Noise |
≤45(W)/≤40(N) |
Main Features (digital mode)
individual calling |
contacts |
Status information |
Group calling |
GPS Status (optional) |
activation |
General calling |
SMS |
Syetem settings and telemetry |
stun |
Remote Sensing (optional) |
Recents |
Scan |
Main Features (Analogue Mode )
Menu mode |
Channel Naming |
Time-out timer |
Vox |
Busy channel lock out |
Frequency/channel scan |
107 DCS |
Multiple call tones+1750Hz |
battery strenth indicator |
50 CTCSS |
FM radio |
Selectable squelch level |
Priority Scan |
Hi/Low power |
CO/TO/SE scan switchable |
Programmable Greetings Message |
Selectable Name/Frequency Display Mode |
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