At 02:00 AM 12/2/2009, J. Forster wrote... >Yeah... I got the model number wrong. I meant the 3403. Digtal, true >RMS. Oh, well, in that case - 10% accuracy @ 100 MHz, max 1 V RMS (20 mW @ 50 Ohm). Or, you could measure 200W @ 1%, if the frequency is < 1MHz.