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Q-Series 1-2RU RF Amplifiers

ATX offers a wide array of high density Q-Series 1RU and 2RU amplifiers including headend, forward and return distribution, headend buffer, forward and return isolation. In addition, 1RU redundant amplifiers, switches and power supplies are available.

  • Features
  • Specs & Order Info


QRFP headend high-gain, high-density 1RU amplifiers consist of 2 high-output, GaAs technology amplifiers in a 1RU rack space. Universal power is available from 100-240 VAC, 47-63 Hz, with no transformer required. The unit is also available with a -48 VDC supply. Get various gain options and interstage output level control with either pad/EQ or gain/slope potentiometers.


The high-gain, high-output 2RU QRAM is ideal for laser driver or post amplifier applications. Technologies include push-pull, power-doubled, quadra-power or GaAs, up to 870 MHz. Front panel access to variable interstage gain and slope, as well as plug-in pad with EQ at the front end, allows for optimum amplifier performance. The QRAMGQ offers 870 and 1000 MHz quadra-power GaAs technologies.


QRFA 1RU forward distribution amplifiers are high-density, high-output, 870 MHz post amplifiers and contain 2 separate amplifiers in a 1RU chassis to achieve the highest output in the smallest rack space. Various gain options are available and the QRFA can be optionally powered from either 110 VAC/24 VDC or -48 VDC.


ATX’s QRFB headend buffer amplifier houses 4 modular amplifiers in a 1RU package, with up to 23 dB of gain in each module. These amplifiers can be used to transparently increase levels when needed in the headend, or they can be used for isolation of inserted channel groups. The high-density modules can handle output levels up to 40 dBmV with minimal distortion. Additional features include input and output pad and EQ sockets. Universal power with no external transformer from 100-240 VAC at 47-63 Hz is standard, while -48 VDC powering is an option.


The 2RU QRBA isolation amplifiers for headend combining are offered with 4 or 5 independent RF amplifier modules when using push-pull hybrid technology. Power-doubled silicon or GaAs hybrids are offered as an option in a 2 or 3 amplifier module configuration. The 2RU QRCIA is equivalent to a QRBA push-pull 13 dB hybrid amplifier. It has a 13 dB output pad for unity gain and maximum isolation. The use of 20 and 25 dB hybrids increases the isolation of the inserted channel. All amplifiers are available in 870 MHz and 1 GHz.


QRBA8 2RU (8-Pack) return isolation amplifiers provide gain for passive isolation in the headend. They come with 8 well-shielded amplifier circuit boards with 5-200 MHz bandwidth.


QISO 2RU unity gain isolation amplifiers add multiple ports to modulators or processors, thereby solving TV channel cross-talk problems in headend applications. Frequencies include 550, 750 and 870 MHz.


QISO/R75-32 3RU unity gain isolation amplifiers house 8 independent amplifiers in any bandwidth from 5-75 MHz. They provide 4 outputs per amplifier, 50 dB port-to-port isolation and 20 dB return loss for each output. Each QISO / R amplifier circuit has loop-through inputs to connect multiple amplifiers when more than 4 outputs are needed (up to 32 output ports).

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