Shenzhen ATNJ Communication Technology Co., Ltd., founded in 2010, is a company that integrates research and development, manufacturing, sales, and technical services. It is a professional radio frequency (RF) product manufacturer with mature experience. The main products include custom-developed SDR digital core boards, LTE/NR (micro, medium, high) power series analog/digital optical fiber digital selective band repeaters & DAS systems, wireless frequency modules, passive modules, public and private network systems, and base station technology solutions. Additionally, the company undertakes various RF and wireless repeater operation and maintenance services and projects, multi-band, multi-sub-band, multi-MIMO DAS systems, remote network management center OAM, and supplies for indoor and outdoor signal coverage projects.
Here we highlight the key service that guarantees our unwavering commitment :
①. Active DAS: Off-air repeater, frequency shift repeater, fiber optic repeater, and inline booster.
②. In cabinet active RF module&parts: LNA, PA, optic transceiver, channel/band selector, frequency shifter, bias tee, PSU.
③. In cabinet passive RF module&parts: multiplexer, filter, channel combiner, semi-rigid/flexible jumper.
④. Passive DAS: POI, multi-band combiner, hybrid combiner, splitter, coupler, tapper, cable assembly, antenna.
⑤. SDR (Software Defined Radio) Core Board Custom Development and Solutions.
⑥. Phased array radar technology and software algorithm.
⑦. ECM system.
⑧. Critical communications solution.
⑨. Public/private network BTS solution.
This product is designed for fiber optic repeaters in mobile communication systems, facilitating the photoelectric conversion and transmission of uplink and downlink signals for the repeaters.
Table 1. RF Index
Specifications |
Index |
Notes |
|
Frequency band |
800-2700MHz |
The primary test frequency bands cover the 2G/3G/4G spectrums currently deployed by China Mobile, China Unicom, and China Telecom |
|
Transmit optical wavelength |
1550±20nm |
|
|
Receive optical wavelength |
1310±20nm |
|
|
Cascade Stages |
1 take 4 |
|
|
Optical Output Power |
-3±1dBm |
Optical Port Power Measurement Using Optical Power Meter |
|
|
4dBm±1dBm |
Laser Emission Power Verification via GUI Software |
|
Transmit Loss of Light (TXLOL) |
≤-3dBm |
IF (Laser Output Power ≤ -3dBm ±0.2dB) THEN ASSERT "TX_OPD_ALARM"ELSE MAINTAIN "NORMAL_OPERATION_STATE" |
|
Receive Loss of Signal (RXLOS) |
≤-10dBm |
|
|
Link gain |
UL:0±2.5dB |
Direct or single-drop connection |
|
|
DL:0±2.5dB |
|
|
Automatic Gain Compensation (AGC) Function |
Insertion Loss of 1x4 Headend Module Connection≤3dB |
Asymmetric Gain Compensation with Variation Rate of±2dB |
|
Flatness In Band |
824~835MHz,869~880MHz,890~915MHz,935~960MHz,1710~1785MHz,1805~1880MHz,1880~1920MHz,1920~1980MHz,2110~2170MHz,2320~2370MHz≤1dB 2515~2675MHz≤2dB |
|
|
VSWR |
≤1.5 |
|
|
Second Harmonic Component |
890MHz input -13dBm,1780MHz output≤-80dBm |
|
|
Intermodulation |
UL:≤-55dBc,(-8dBm input/2CH)Total input powe-5dBm,per carrier is 8dBm |
Test 1:Near/Far End 1+1 Testing @ 600kHz Spacing; (Final results subject to your company's test data) |
|
|
DL:≤-60dBc(-3dBm input/2CH) Total input powe0dBm,per carrier is 3dBm |
|
|
Noise floor |
UL |
≤-130dBm/Hz |
LINK GAIN=0dB,Test Configuration: Cascaded 1:1 Connection (AGC Compensation Enabled)(Final results subject to your company's test data) |
|
DL |
≤-125dBm/Hz |
|
RF isolation |
≥50dB |
|
|
Delay |
≤100ns |
|
|
Gain Adjustment Range |
≥15dB |
MU Uplink |
|
Gain Step Size |
1dB |
MU Uplink |
|
Gain Setting Error |
0~15 error≤1dB; |
MU Uplink |
|
Working temperature |
-20~70℃ |
|
|
Power supply |
DC+9V~+12V,Power consumption less than 4W |
|
|
Monitoring Interface |
Equipped with a DB9 female connector providing two RS485 interface; Communication baud rate: 9600 bps |
|
|
WDM |
Built-in |
|
|
Quick Contact
Address Floor 12, Building A, Rd Jiangshi, Quanju High-Tech Industry Park, Guangming District, Shenzhen, Guangdong Province, China Tel 00-86-18813582037 Our Newsletter
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