Custom Designed Systems

If a standard, fixed-configuration kit doesn’t provide the coverage you need, we can engineer a solution specifically for your environment.

Why would you need a bespoke design? Here are some of the aspects that we may have to consider:

The antenna feeder cable length is longer than the 30M length available in a kit.

RF240 coaxial cable is supplied as standard with all kits.

Cables are pre-cut and terminated with a choice of 10m, 20m and 30m lengths.

If a longer cable is required we can:

Upgrade to a cable that inserts less loss through attenuation, such as RF400
Insert a GPS amplifier in the cable run
…..or both of the above

The repeater system needs to provide coverage in more than one area or room.

We have a range of signal splitters and amplifiers that can be engineered into a solution to provide coverage over a wider area, or multiple areas, within a facility.

We consider parameters such as cable lengths, physical environment, availability of mains power etc, and provide technical drawings to illustrate the proposed solution.

Here’s the largest custom-designed system that I am aware of.

Example of a custom-designed system

This system covers the interior of a large industrial unit that is divided into a number of separate laboratories where signal is required.

An inline amplifier boosts the signal to overcome attenuation losses in the cables.
The splitter distributes the incoming signal to multiple repeater units – splitters can be 1:2 | 1:3 | 1:4 | 1:5
DC power from the repeater units is passed through the coaxial cables to provide power to the amplifier and the antenna.

Amplified splitter has four outputs with 10dB gain on each port.

Power for the antenna and splitter comes from the RF connectors on the repeaters.

5V DC travels up through the cable to the splitter to the antenna LNA.

Any of the four splitter ports can pass the bias voltage through to the antenna.

Unused ports have 50 ohm loads to prevent instability through reflections from an open-circuit port.

Dummy load is removed when the port is needed.

GNSS/GPS 16 port splitter for datacentre, workshop or laboratory applications.

GNSS-RAS-16

Components of a custom-designed system GPS repeater system

GPS amplifier

Allows for longer cable runs between the outdoor GPS antenna and the indoor repeater unit(s).

Signal gain is +16dB across the GNSS band of 1200 to 1700 MHz; supporting GPS L1 and L2, GLONASS and Galileo simultaneously.

A built-in filter removes unwanted signals that may have entered the cable.

The amplifier requires a 5V DC power supply which is fed through the coaxial cable from the attached repeater unit(s).

The DC voltage is also passed through to the outdoor GPS receiving antenna.

GPS amplifier tech data

GPS splitter 1:2

Connects the the signal from one external antenna to up to two repeater units.

Supports GPS L1 & L2, GLONASS, Galileo.

It is sometimes necessary to use a separate amplifier in conjunction with the splitter to ensure adequate signal strength to all the repeaters – if in doubt call or email FalTech for technical advice.

If the signal is to be transmitted to just one repeater (for example if a second device is to be installed later) the unused port should be fitted with a 50 ohm terminator.

S2 v2

GPS splitter 1:2 tech data

GPS splitter 1:5

Distributes the incoming signal from one external antenna to up to five GPS repeater/receiver units.

Supports GPS L1 & L2, GLONASS, Galileo.

Sometimes necessary to use a separate amplifier with the splitter to overcome signal losses through attenuation.
Upgrading to a lower-loss cable may also be enough – if in doubt call or email FalTech for technical advice.
Spare/unused ports should be fitted with a 50 ohm terminator.
One port passes DC voltage from repeater to GPS antenna, to provide power for LNA (-4dB signal loss).
The other four ports are DC-blocked (-12dB signal loss).

GPS splitter 1:5 tech data

Combined amplifier/splitter 1:3

This versatile unit is a combined GPS amplifier/splitter.

It has a built-in 16dB line amplifier with a splitter that passes signal to up to three separate GPS repeater/receiver units.

Three configuration options:

Inline amplifier with 16dB gain
GPS splitter unit (1:3)
Combined line amplifier with splitter 1:3

GPS amp/splitter tech data

Licensing

Licensing of GPS repeaters in the UK.

Licensing of GPS repeaters in Canada.

Licensing of GPS repeaters in the USA.

Roger-GPS: repeater equipment certifications.

If you have any queries please drop us a line.