Audio Limited RK2040 receiver

This compact 1U, 19-inch rack is capable of accommodating up to four diversity receivers – the minimum specification unit has two receivers; additional receiver modules can be purchased separately. Each receiver has an individual LCD display, showing RF levels for both sides of the diversity, audio level, low transmitter battery level, and name, frequency and audio output level for each artist.

Each receiver has 32 pre-programmed frequencies, and an increased switching bandwidth of up to 24MHz. There is a built-in active distribution amplifier, so only two antennae are needed to supply the signal for four receivers. With two racks cascaded together, only two antennae are needed, eliminating the need for additional splitters and combiners. Eight receivers can be operated from one set of antennae, a feature that is unique to the RK2040.

The RK2040 can be mains powered via an AC/DC adapter, or can be powered from any DC source with voltages from 10 to 18 volts (so, for example, a car battery can be used), via a four-pin XLR socket.

Four transformer balanced line-level outputs.

Built-in RS485 PC interface for remote monitoring and control via Audio Ltd’s custom designed monitoring PC based application. PC can be located up to 4000 feet away from the racks. Since up to 24 racks can be linked together, and only one cable is needed, up to 92 receivers can be monitored over one cable. The software to monitor the racks is included in the price.

Compact rack within a 1U high 19inch frame, to take up to four true diversity receivers.

Modular concept allows the RK2040 rack to be upgraded by the addition of receiver modules: minimum configuration has two diversity receivers; can easily be upgraded with the purchase of individual receiver modules.

Each diversity receiver module has a frequency-switching bandwidth of up to 24MHz with up to 32 pre-programmed frequencies.

Individual LCD display for each receiver, incorporating RF levels for both sides of the diversity, audio level, low transmitter battery indicator, frequency display, name display, audio output level.

Individual receiver and parameters set are with four buttons and intuitive menu.

Monitoring of all receivers through quarter inch headphone socket with overall level control. Individual receiver selection via single button. Headphone indicator in display when the receiver is selected.

Line level transformer balanced outputs on individual 3 pin XLR sockets. Maximum level before clipping +14dBu.

Rack is externally powered via 4-pin XLR male socket. Voltage range 10 – 18V DC.

Antenna inputs via 50 ohm BNC connectors.

Built-in active distribution amplifier with auxiliary output to link to another RK2040 rack.

Phantom powering for Audio Ltd active masthead amplifiers, to minimise cable losses.

RS485 15-pin D-type connector to connect to PC display. Second D-type connector allows daisy-chaining of multiple racks. Maximum cable run for twisted pair is 1000m.

Comprehensive display and control facilities via the Audio Ltd rack-monitoring application.