CM-300 (V1) UHF and CM-350 (V1) UHF Air Traffic Control Radios Flexible architecture accommodates both fixed and remote tuned configurations Field configurable embedded cavity filters allow use of external filtering or bypassing Remote control, monitoring and maintenance by means of a Maintenance Data Terminal (MDT) using interface software installed on a standard laptop computer Passive cooling ensures high reliability operation Overview The General Dynamics family of Air Traffic Control (ATC) rack mounted transmitter and receiver systems are specifically designed to meet the dynamic mission requirements of air traffic control centers, commercial airports, military air stations and range installations. Over 12,000 CM-300 radios have been delivered with a fielded Mean Time Between Failure (MTBF) of greater than 200,000 hours, assuring long-term cost savings,system interoperability and consistent, long-term performance. Special Features nnBuilt-in Antenna Transfer Relay (ATR) to allow automatic antenna sharing between transmitter and receiver or between the main transmitter and a standby transmitter nnSystem software upgradeable via the MDT either locally or remotely nnWide dynamic range receiver front end with high performance receiver sensitivity, selectivity, co-location, image rejection, AGC attack time, and frequency stability nnHigh performance transmitter spectral mask, back inter-modulation products, spur/harmonic rejection, and frequency stability nnRemote Monitoring and Maintenance (RMM) nnBy-passable embedded co-site filter for fixed and remote tuning is standard; units may be purchased with no filter CM-300 (V1) UHF ATC Radios nn Squelch General UHF nn Frequency range: nn Frequency error: 225 to 399.975 MHz ≤ ± 2PPM nn Channel spacing: 25 kHz nn Mode: Simplex nn Emissions: A3E: 300 Hz-3000 Hz nn AC Power supply CM-300 UR and CM-300 UT: 120V, 60 Hz (240V/50Hz optional) CM-350 UT: 120/240V, 50/60 Hz Adjustable carrier squelch (-102dBm to -50dBm) Adjustable noise squelch (5dB to 15dB) nn AGC characteristics ≤ 3 dB variation for RF input signals of 3 μV to 0.5V nn Outputs Audio line: 300 to 3000 Hz ± 2 dB, –25 to +20 dBm into 600 Ohm Headset: 300 to 3000 Hz ± 2 dB, –25 to +20 dBm into 600 Ohm Distortion: < 5% at 90% AM @ 90% AM nn Permissible mismatch: No damage for ∞ VSWR nn MTTR: 30 minutes nn Back intermodulation nn Self-test: Built-in-test-subroutine Remote control, monitoring and maintenance can be performed with a Maintenance Data Terminal (MDT) using custom interface software installed on a standard laptop computer nn Mechanical: 19 inch rackmount, Height 3U Transmitter Data: CM 300/UT nn Sensitivity 30% AM: 2.0 μV (–102 dBm) for 10 nn Part number: 01-P40400G001 nn Suppression of intermodulation ≥ 75 dB 3rd order IM; 2 interfering signals nn Products: ≥ 100 kHz spacing from receive signal nn Cross modulation ≥ 80 dB, above sensitivity, Interference 30% AM 400 Hz Δ f 1.5 MHz nn Colocation For Transmitter Power = 10 Watts Path Loss ≥ 31 dB. ΔF ≥ 3.1 MHz Sensitivity ≤ –95 dBm for 10 dB SINAD Input impedance 150 Ohm input level 3mv ATR losses) 10-50 W carrier, adjustable 180 W PEP, max nn Fielded MTBF: > 200,000 hours nn IF selectivity: > 60 dB @ ± 25 kHz nn Local Microphone input nn Output power, nominal(after cavity filter nn Altitude (operational): 15,000 ft. (MSL) nn IF bandwidth: < 6 dB @ ± 9 kHz Impedance 600 Ohm (balanced), transformer; level -25 to +20 dBm for 90% AM; frequency response 300 to 3000 Hz, ± 2 dB nn Part number: 01-P40200G001 nn Humidity: 90% at +40˚C (non-condensing) nn Image rejection: ≥ 70 dB nn Remote Audio Line input Transmitter Data: CM 350/UT Operating: -10˚C to +50˚C Storage: -40˚C to +70˚C dB SINAD nn Weight: 37 lbs nn Mechanical: Fits 19 inch rack, Height 3U nn Temperature nn Power consumption: 15 Watts typical panel) nn Duty cycle: Continuous -10˚C to +50˚C CM-300 UR, CM-300 UT, and CM-350 UT: 26V(21.6-29V) nn Part number: 01-P40100G001 5.25”H x 17”W x 17.5”D (19” rackmount front nn Power reduction: For VSWR > 2:1 nn DC Power supply Reveiver Data: CM 300/UR nn Dimensions nn Output power, nominal(after cavity filter ATR losses) 2–10 W carrier, adjustable 36 W PEP, max. @90% AM nn Permissible mismatch: No damage for ∞ VSWR nn Back intermodulation Interfering Signal at +9.0 dBm ΔF ≥ 3.1 MHz Back IM Products ≤ –30 dBm (70 dB below 10 Watts) nn Harmonics: -80 dBc nn Spurious: -80 dBc nn Carrier AM noise level: ≥40 dB below 90% AM Interfering Signal at +16.0 dBm ΔF ≥ 3.1 MHz Back IM Products ≤ –23 dBm (70 dB below 50 Watts) nn Harmonics: -80 dBc nn Spurious: -80 dBc nn Carrier AM noise level: ≥40 dB below 90% AM nn Modulation depth: 90% ± 5% nn Power consumption: 150 Watts typical nn Dimensions 5.25”H x 17”W x 17.5”D (19” rackmount front panel) nn Weight: 37 lbs nn Remote Audio Line input Impedance 600 Ohm (balanced), transformer; level -25 to +20 dBm for 90% AM; frequency response 300 to 3000 Hz, ± 2 dB nn Local Microphone input Input impedance 150 Ohm input level 3mv nn Power reduction: For VSWR > 2:1 nn Modulation depth: 90% ± 5% nn Duty cycle: Continuous -10˚C to +50˚C nn Power consumption: 150 Watts typical nn Mechanical: Fits 19 inch rack, Height 3U [email protected] • GDMissionSystems.com/atc Phone: 1-800-424-0052 ©2016 General Dynamics. All rights reserved. General Dynamics reserves the right to make changes in its products and specifications at anytime and without notice. All trademarks indicated as such herein are trademarks of General Dynamics. All other product and service names are the property of their respective owners. ® Reg. U.S. Pat. and Tm. Off. D-CM300UHF-19-0416
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