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Drake R4C
Specifications

Return to Drake R4C

Discontinued Amateur Receivers 

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R4C Specifications

Frequency Range ...... 3.5-4.0, 7-7.5, 14-14.5, 21-21.5, 28.5-29 MHz  
Optional Ranges ...... Fifteen 500 kHz crystal ranges
Modes ................ LSB, USB, AM, CW, RTTY
AC Power ............. 120/240 VAC 50/60 Hz 60 Watts
Antenna Input ......   52 ohms nominal
Selectivity ..........  @ -6dB     @ -60dB
                        0.25 kHz   0.6 kHz (optional CW)
                        0.5 kHz    1.0 kHz (optional CW)
                        1.5 kHz    3.0 kHz (optional CW)
                        2.4 kHz    4.2 kHz (supplied SSB)
                        4.0 kHz    7.5 kHz (optional AM)
                        8.0 kHz   28.0 kHz (supplied AM)
Image Rejection ...... > 60 dB above 23 MHz, > 70 dB below 23 MHz
I.F. Rejection ....... > 60 dB  
Sensitivity .......... < 0.25µV 
Freq. Stability ...... ± 100 Hz after warmup, ± 100 Hz 10% voltaqe change
Freq. Accuracy ....... ± 5 kHz, 1 kHz (at crystal calibrator set point)
I.F. Frequencies ..... 5645 kHz crystal lattice filer, 50 kHz tunable L/C filter
Audio Output ......... 2.0 Watt 
Audio Impdeance....... 3.2 ohms
Dimensions ........... 10.75W x 5.5H x 12.25D inches
Weight ............... 17 Lbs.


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