Rohde and Schwarz EFAv53

B11	6 MHz SAW filter for digital EFA models or EFA-B10, EFA-B20 (retrofittable by service)
B12	7 MHz SAW filter for digital EFA models or EFA-B10, EFA-B20 retrofittable by service
B13	8 MHz SAW filter for EFA 5X/6X/7X or EFA-B20 + EFA-K21/22/23, retrofittable by service
B14	2 MHz SAW filter for EFA5X/6X/7X or EFA-B20 + EFA-K21/22/23 retrofittable by service
B3	Selection for demodulator (versions 33/43/53/63/73/89/93) (retrofittable by service)
B30	M/N demodulator for fitting into digital units, retrofittable by service
B4	MPEG2 decoder (retrofittable by service)
B6	Video distributor 4 video outputs (only versions 33/53/89/93)
C3	Three years of depot calibration coverage based on the R&S recommended calibration interval - includes test data.
C5	Five years of calibration coverage based on the R&S recommended calibration interval - includes test data.
DCV	Documentation of EFA calibration values
K1	EFA scan for EFA versions 20,23,40,43, 60,63,70,73
K21	DVB-C/J.83/A/C (QAM) FW for versions 5X/7X or B20 (included in version 6X)
K23	J.83/B (QAM) FW for versions 5X/6X or B20 (included in version 7X)
K25	Firmware for FIR coefficients readout only for EFA5X or EFA-B20 + EFA-K22
R3	Three years of depot repair coverage, including re-calibration if necessary to complete the repair.
R5	Five years of depot repair coverage, including re-calibration if necessary to complete the repair.