Option 219 adds to the standard test set one 65 dB for N5241A/42A, 60 dB for N5244A/45A, and 50 dB for N5247A source attenuator (settable in 5 dB increments for N5241A/42A and 10 dB increments for N5244/45A/47A), one 35 dB receiver attenuator (settable in 5 dB increments) for N5241A/42A/44A/45A and 50 dB receiver attenuator (settable in 10 dB increments) for N5247A, and one bias-tee to each test port. Option 219 requires Option 200.
The source step attenuators enable small test signal output for high gain amplifier testing. The receiver attenuators avoid receiver compression due to large signal incidents. Together it makes PNA-X with flexible test set for amplifier measurements.