KROKS RK900/2100-70 Dual-Band GSM 900 & 3G Signal Repeater
The KROKS RK900/2100-70 repeater operates in GSM 900 (2G), UMTS 900 (3G), and UMTS 2100 (3G) standards, providing reliable voice communication and mobile internet access.
This model is recommended for use in cottages, apartments, private houses, and other residential or commercial premises consisting of 1–3 rooms with a total area of up to 300 m².
Attention! The actual coverage area depends on the incoming signal level, wall materials and thickness, and other installation-specific factors.
The KROKS RK900/2100-70 belongs to the entry-level repeater category. Its 70 dB gain significantly improves signal quality when a stable outdoor signal is available at the location of the external antenna.
The repeater features detailed LED indicators for monitoring operation, detecting oscillation (self-excitation), and overload conditions.
An automatic gain control (AGC) system is built in, while manual gain adjustment is also available with -2 dB, -6 dB, and -8 dB steps for each frequency band.
Key Features
✅ Supports GSM 900 and UMTS 2100 mobile communication standards
✅ Provides stable voice calls and mobile internet
✅ High gain of 70 dB
✅ Input voltage range from 7V to 24V
✅ Automstment up to 16 dB for each band
✅ Low noise level
✅ LED status indicators
✅ Supports an unlimited number of simultaneous users
The KROKS RK900/2100-70 is an effective solution for improving cellular coverage and 3G internet performance in homes, offices, cottages, warehouses, and other locations with weak mobile signal reception.atic Gain Control (AGC)
✅ Automatic oscillation detection and suppression
✅ Manual gain a
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