Nikrans LCD600-GSM+4G, Руководство по установке

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If the BS is higher than - 50 dBm, the device will have self-excitation issue. In such cases, the output signal will drop
during communication. If the antennas are placed very close to each other, it will evoke self-excitation. To fix the
problem, you would need to place the outdoor antenna at thelargest possible distance from the indoor antenna.
LINE 2. MS shows the output power of a booster.
Note! The MS (output power) index must be b05 and +15 dBm. Device Gain must be 65/65 dB.
LINE 3. Device gain shows the current gain (left) and maximal gain (right) of the device. For optimal function both
values must be equal (current gain=max gain).
Line 4 shows that power supply is connected and works properly (DC5V) and automatic gain control of the system is
also active (AGC).
LINE 4. Power DC 5V shows that power supply is connected and works properly. AGC function for automatic gain
adjustment.
Note! In LINE 4 in its right corner can appear the exclamation point or an arrow. It denotes an installation error. Use UP
and DOWN buttons to see the reasons. For more details, read the section QUESTIONS & SOLUTIONS.
UP Button : Go to the previous page to check the functioning status of the device or see the error description.
DOWN Button : Go to the next page to check the functioning status of the device or see the error description.
On the LCD screen you can see essential data about supported frequency bands. Depending on your model and the
number of bands, the displayed data will vary.
If you have a dual-band model (2 bands):
S1 – data for the lowest of the supported bands
S2 — data for the highest of the supported bands
If you have a triband model (3 bands):
S1 – data for the lowest of the supported bands
S2 — data for the middle of the supported bands
S3 — data for the highest of the supported bands
Questions & Solutions
If the device detects that the incoming signal is weak, try 3 possible solutions:
• Solution 1. Direct the outdoor antenna to provider’s nearest base station.
• Solution 2. Change the position of the outdoor antenna. Try to put it as high as possible.
• Solution 3. Reinstall the outdoor antenna trying to avoid obstacles between the antenna and provider’s base
station.