33dBm-43dBm1800MHz Band Selective Repeater/Wireless Phone Booster /Mobile Repeater (GW-43BSRD)

Product Overview

The GW-43BSRD is a single-band RF repeater for the 1800MHz band. Mounted between the base transceiver station and the handsets it serves, it takes the signal that already exists at one point — a rooftop, a mast, a wall facing the site — and relays it into places the base station cannot reach: a basement, a car park, a workshop floor, a stretch of road. Nothing is generated and nothing is re-modulated; the same 1800MHz carriers arrive inside the building that arrive outside it.

You will also see units like this sold under descriptions such as wireless phone booster or mobile repeater, and in practical terms it does the job of any cell phone signal booster: it moves usable signal from where it is strong to where it is not, in both directions, so the handset's reply reaches the network as well.

Compared with a fiber optic repeater or a frequency-shift repeater, an RF repeater is the fastest to put on air and the least expensive to build. There is no fibre route to dig and no frequency conversion stage; a donor antenna, a coverage antenna and a run of coax are most of the site work. What it asks in return is a usable donor signal and enough antenna isolation to keep the amplifier stable.

This unit is aimed at people who plan and build coverage rather than someone buying a box for a single room: operators extending 1800MHz service, integrators assembling fixed installations, project contractors and the resellers who support them.

How the Repeater Works

1. A donor antenna is fixed where the 1800MHz base station signal is usable — roof, mast or wall bracket — and connected to the repeater's donor port with coax.
2. The repeater filters that signal and amplifies it linearly at the same frequency. It does not shift frequency, change modulation or decode traffic; the operator's carriers pass through as they are.
3. A coverage antenna retransmits the amplified signal into the weak or blind area.
4. The uplink runs the same path in reverse: the handset's transmission is picked up by the coverage antenna, amplified and returned to the base station, so outgoing and incoming traffic improve together.
5. Because both directions are live at once, the hop behaves as a mobile signal booster for the whole area it serves rather than for one handset in one room.
6. Every part of the chain — donor antenna, feeder and coverage antenna — has to be rated for 1800MHz and for the output power of the model in use.

Model Range and Output Power

• 33dBm, GW-33BSRD — the entry point of the range, and a sensible match for a single floor, a short feeder run and one or two coverage antennas close to the unit.
• 37dBm, GW-37BSRD — more headroom for a mid-size floor plate or a small building where the coverage antenna sits further away.
• 40dBm, GW-40BSRD — for buildings where the signal is split across several antennas on different floors and every split takes level out of the system.
• 43dBm, GW-43BSRD — the top of the range; specify it for large sites, long cable runs or a distribution network with several splitters and couplers.
• All four share the same chassis, the same 1800MHz band and the same interfaces. What changes is how much signal the mobile signal booster can deliver before the site's own losses absorb it.

Band-Selective and Channel-Selective Versions

• Band-selective version — amplifies every signal inside the 1800MHz band it is built for, with the bandwidth customized to the operator's allocation.
• Channel-selective version — amplifies only the channels on the list (1, 2, 4, 8, 12 or 16 customized channels) and rejects everything else.
• Several channels at once — the channel selector processes multiple channels simultaneously, so one unit can carry more than one carrier.
• When band-selective fits — a single operator owning the whole block, or a site that has to pass every carrier in the band without a published channel plan.
• When channel-selective fits — crowded spectrum, a shared site, or an operator who needs a commercial cell phone signal booster that transmits only the agreed channels.
• Same platform either way — both versions use the same chassis, the same four output power levels and the same interfaces, so the decision is about filtering, not hardware.
• Before ordering — send the band edges or the channel list; the filtering is built to that definition, and a cell signal booster is only as selective as the specification behind it.

Specifications

Applications

• Basements, car parks and storage floors — the outdoor signal dies at the first slab, and one coverage antenna at the stair head turns a dead zone into a usable one.
• Hotels, offices and shopping malls — multi-storey buildings where coverage fades at the core; the repeater feeds a distribution system of splitters and indoor antennas across floors.
• Villages and rural fringe areas — a settlement beyond the base station's comfortable reach, where a cell phone signal booster for sale at installation level is the practical answer rather than a consumer kit.
• Highways, tunnels and transport corridors — a coverage antenna aimed along the corridor keeps a stretch of road served where the base station cannot see it.
• Airports, exhibition grounds, tourism regions and golf courses — outdoor sites where coverage has to follow people across open ground, terminals or event space.
• Factories, mining districts and warehouses — heavy-duty sites where the unit has to keep working through dust, heat and long shifts, and where reliability matters more than a low price.

Site Requirements and Installation

1. Measure the donor signal first. Find a point where the 1800MHz base station signal is strong enough and clean — roof, mast or a wall facing the site are the usual candidates. If nothing usable is available there, a repeater is the wrong tool for the building.
2. Check the isolation between the two antennas. The coverage antenna must not be able to hear the donor antenna; with too little separation the cell signal booster feeds back into itself and self-oscillates. Vertical separation and a wall or roof between the antennas are the normal fixes.
3. Aim the coverage antenna away from the donor antenna. The two face opposite directions, and that is what limits how wide an angle a single antenna can cover.
4. Keep the site inside the base station's practical range. The unit relays a donor signal, so it has to be installed within the coverage it is extending.
5. Plan the distribution behind it. Splitters and couplers feed several coverage antennas across rooms or floors, and every split costs level — which is why the power model and the antenna plan are chosen together.
6. Accept the over-the-air trade-off. A donor antenna takes its signal out of the air, so a little noise comes with it; a clean donor position is what keeps that noise out of the coverage area.
7. Commission and record. Compare signal level and quality before and after at each coverage point, check the uplink, and log the settings so the next site visit starts from a known baseline.

Monitoring and Remote Control

A USB port lets a technician connect a notebook and supervise the repeater locally — reading working status and checking parameters on site without opening the casing. Fit the optional built-in wireless modem and the same information reaches a network management system, which can supervise the repeater's working status remotely and download operational parameters to it. A setting can then be changed across one site, or across a hundred, without sending anyone up a ladder.

That is worth most where a commercial cell phone signal booster is one part of a larger network: operators running a spread of repeater sites, integrators who maintain installations for their clients, and distributors who support a project after handover. A site that reports its own status becomes planned maintenance instead of a complaint.

Remote supervision also keeps the commissioning record honest — the parameters that went in are the parameters you can read back months later.

Ordering and Delivery

• Band definition — send the band edges for a band-selective build, or the channel list for a channel-selective one. The filtering is made to that specification.
• Power class — share the site plan: building size, number of coverage antennas, length of feeder runs. We will help you settle on the output power the installation actually needs.
• Antennas, feeder and connectors — these are planned around the site rather than assumed. Send your antenna positions and cable runs and the ports and accessories are matched before the order is confirmed.
• Documentation — tell us what the project needs: test data, serial numbering, manual language, labelling.
• Terms — packaging, lead time, payment terms and shipping method are confirmed with your sales contact for each order, because they depend on the configuration and the destination.
• Project buying — this is a professional cell phone signal booster for sale to operators, integrators and distributors, configured to the band you specify rather than shipped as a fixed retail kit.
• Evaluation units — if you need a unit before a roll-out, ask your sales contact about availability and terms.

Technical Support & Model Matching

Getting the right model matters more than anything else, so Greetwin builds technical support into every order. Tell us the band, the site and the coverage you need, and our engineers will match a model to it, check gain and output power against your installation, and say plainly when something will not fit. We also advise on antenna placement, cabling and commissioning, then stay with you through troubleshooting once the system is running. All of this is backed by our ISO 9001 certified production in Shenzhen, responsive after-sales service and spare parts.

FAQ