Cobra Electronics PR4000WX 22 CH FRS/ GMRS Transceiver User Manual PR4000 5a

Cobra Electronics Corporation 22 CH FRS/ GMRS Transceiver PR4000 5a

users manual

Customer Assistance WarrantyIntroduction25Nothing comes close to a Cobra™OperationGeneral Specifications •NominalUnitNominalUnitC.Transmitter1. Conducted PowerGMRS . . . . . . . . . . . . . . . . . . . .W 3FRS Only . . . . . . . . . . . . . . . . .mW 5002. Carrier Frequency Stability . . . ±Hz 5003. Modulation Limiting . . . . . . . . KHz 2.54. Carrier Attack Time . . . . . . . . . mS 805. Audio Frequency Response@ 300 HZ . . . . . . . . . . . . . . . . . dB -12@ 2500 HZ . . . . . . . . . . . . . . . . dB +66. Audio Distortion . . . . . . . . . . . . % 37. Hum Noise . . . . . . . . . . . . . . . . dB 308. Transient Frequency Behaviora) TX On . . . . . . . . . . . . . . . . . mS 30b) TX Off . . . . . . . . . . . . . . . . . mS 5A. FRS/GMRSFrequency Allocation andCompatibilityImportant: Please note that Cobra®GMRSmodels with 15 channels may designatedifferent channel numbers for the samefrequency. For example, a Cobra®15 channelGMRS model would need to be tuned tochannel 11 in order to communicate with a 22 channel GMRS tuned to channel 15.Please refer to the chart below for channel/frequency number compatibility.A = 22 Channel GMRS Channel No. DisplayedB = Channel No. For 15 Channel GMRS ModelsC = Type of Radio ServiceD = Frequency in MHzE = Power in Watts ERPa = 3.0/2.0/0.5 (selectable)b = 0.5AB C D E1 1 FRS/GMRS 462.5625 a2 2 FRS/GMRS 462.5875 a3 3 FRS/GMRS 462.6125 a4 4 FRS/GMRS 462.6375 a5 5 FRS/GMRS 462.6625 a6 6 FRS/GMRS 462.6875 a7 7 FRS/GMRS 462.7125 a8 FRS 467.5625 b9 FRS 467.5875 b10 FRS 467.6125 b11 FRS 467.6375 b12 FRS 467.6625 b13 FRS 467.6875 b14 FRS 467.7125 b15 11 GMRS 462.5500 a16 8 GMRS 462.5750 a17 12 GMRS 462.6000 a18 9 GMRS 462.6250 a19 13 GMRS 462.6500 a20 10 GMRS 462.6750 a21 14 GMRS 462.7000 a22 15 GMRS 462.7250 aB. Receiver1. SensitivityFor 12 DB SINAD . . . . . . . . . . dBm -121For Call Signal Detection . . . . dBm -1212. Max. Audio Output @10% THD . . . . . . . . . . . . . . . mW 2003. Max. S/N Ratio @ 1mV RF Input . . . . . . . . . . . dB 504. Squelcha) Sensitivity . . . . . . . . . . . . . . dBm -121b) Attack Time . . . . . . . . . . . . . mS 150c) Closing Time . . . . . . . . . . . . mS 2005. Audio Frequency Response@ 300 HZ . . . . . . . . . . . . . . . . . dB -3@ 2500 HZ . . . . . . . . . . . . . . . . dB -106. Signal Displacement BW . . . +/-KHz 57. Adjacent Channel Rejection . . . dB 608. Intermodulation Rejection . . . . dB 659. Spurious Response Rejection . dB 55D. Power Supply1. Battery Life (5:5:90 RATIO)With Alkaline Batteries . . . . . . . HR 242. Battery Operating Range . . . . . . V 4.2 - 6.0NominalUnit

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