M/A-COM's SMR-5550 is a low-cost high performance microwave receiver. The receiver has all the necessary features for reception of complex order, high data rate PCM/TDM and high capacity FM/FDM communication signals. The SMR-5550's electrical design is patterned after the SMR-4520 microwave receiver and features the low group delay distortion and low phase noise characteristics necessary to assure virtually error-free reception of digitally modulated signals over a wide dynamic range of received signal strength.
The SMR-5550 covers the entire 1-18 GHz frequency range in tuning steps as small as 10 kHz. A single, operator-selectable wideband IF is provided at 70 or 140 MHz. As an option, a 160 MHz IF output can be provided in place of 140 MHz. The IF bandwidth at 70 MHz is 50 MHz and the 140/160 MHz IF bandwidth is 80 MHz. The IF output features AGC or manual gain control. A demodulated FM video output is provided, along with the ability to select one of five IF bandwidth filters: 5, 10, 15, 20 and 50 MHz (other bandwidths available upon request). The IF filters and FM discriminator are designed for high NPR performance for all high capacity FM/FDM signal formats.
All receiver functions are controllable from the front panel or via RS232C serial interface. Control/status functions include: tuned frequency, IF output frequency select, IF gain mode (AGC/MGC), IF gain level, FM video level, FM bandwidth, signal strength, BIT status and receiver ID.
The unit is operational over the 0 to 50°C operating temperature range and is housed in a 1U full rack width chassis.
The SMR-5555 is the dual microwave receiver version and comprises two SMR-5550 synthesized CW receivers. At power on, the front panel display indicates which receiver is designated as horizontal (H-top receiver, V-bottom receiver) and which is designated as vertical.
For further information contact DS Communications, (011) 314 4101.
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