A-214 682XXB/683XXB MM
3-11 Power Level Accuracy and Flatness Tests

(Model 68285B/68385B without Option 2D Step Attenuator)

Power Level Accuracy Test Procedure
Set F1 to 5.0 GHz Set F1 to 25.0 GHz Set F1 to 55.0 GHz
Set L1 to: Measured Power * Set L1 to: Measured Power * Set L1 to: Measured Power *
+10dBm
+9 dBm
+8 dBm
+7 dBm
+6 dBm
+5 dBm
+4 dBm
+3 dBm
+2 dBm
+1 dBm
0dBm
–1 dBm
–2 dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
+2.5 dBm
+1.5 dBm
+0.5 dBm
–0.5 dBm
–1.5 dBm
–2.5 dBm
–3.5 dBm
–4.5 dBm
–5.5 dBm
–6.5 dBm
–7.5 dBm
–8.5 dBm
–9.5 dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
+2 dBm
+1 dBm
+0 dBm
–1 dBm
–2 dBm
–3 dBm
–4 dBm
–5 dBm
–6 dBm
–7 dBm
–8 dBm
–9 dBm
–10dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
_________dBm
*Specification is 1.0dB. *Specification is 1.0dB. *Specification is 1.5dB.
Power Level Flatness Test Procedure (Step Sweep)
Set L1 to: Max Power Min Power Variation **
+2 dBm _________dBm __________dBm _________dB
**Maximum variation is 1.6 dB (0.5 to 40 GHz); 2.2 dB (40 to 60 GHz).

Power Level Flatness Test Procedure (Analog Sweep) (Model 68385B only)

Set L1 to: Max Power Min Power Variation ***
+2 dBm _________dBm __________dBm _________dB
***Maximum variation is 2.0 dB (0.5 to 20 GHz); 4.0 dB (20 to 40 GHz); 5.0 dB (40 to 60 GHz)(typical, not a
specification).
TEST MODEL
RECORD 68285B/68385B