S11 phase 2 deg 2.5 deg 20 dB RL 0.8 dB 1 dB 6 deg 7 deg 40 dB RL 5 dB 7 dB S11 is excellent. 2-port cal and QuickCal nearly identical.Ģ-port Cal QuickCal Notes 5 dB RL S11 mag 0.3 dB 0.4 dB When S11 is poor, results are quite similar and uncertainties similar. Phase with CalRdy is off because of length of cable. Phase difference between 2- port cal and QuickCal observed because S11 magnitude is very good. Phase with CalRdy is off, because of length of cable. Test port cable effects not corrected for. See next slide.ĬalRdy is a bit different. Return loss in passband better than 15 dB.

2-port cal and QuickCal nearly identical.Ĩ S11 magnitude – entire trace.

Rejection band of filter – noisy measurements ( dB loss S21) measurement sĬalRdy is offset from 2-port cal and QuickCal because we have not compensated for the extra delay in the cable. 2-port cal and QuickCal nearly identical. With CalRdy, slightly more loss in the passband of the filter because the black cable that connects the filter to the test ports is not accounted for with CalRdy. N9923A QuickCal performed with a load.Ĥ S21 magnitude - entire trace. (2) CalRdy reference plane is at test port.

(1) Note black cable connecting test port to filter. (3) QuickCal or 2-port cal reference plane is at DUT. Epson shoot-out.Presentation on theme: 'Comparing CalRdy, QuickCal and 2-port cal on N9923A'- Presentation transcript:ġ Comparing CalRdy, QuickCal and 2-port cal on N9923AĪ filter test Prepared by: Afsi Moaveni Last update: May 12, 2010 I’ll discuss more in the inevitable Panasonic vs. Note that THX and the other similar highest quality modes really look good, if just a touch cool. They measure 800 lumens, a significant increase of more than 20% “out of the box” compared to Mike’s measurements last year for the older HC5010.Ĭomparing “out of the box” brightness of best modes with the Panasonic, the Epson sports just over 800 lumens to the Panasonic’s 650ish lumens. That makes this Epson HC5020 UB more than 20% brighter. We consider this important, as most often, a projector has a brightest mode that just is not pretty to watch. Well, it turns out that Epson has managed to stay ahead of them, by 7-8% That’s not huge but, it does mean you can fill a roughly 5″ larger diagonal screen with the same amount of brightness (compared to the PT-AE8000).Īs always, I ask Mike to also “tweak” the brightest mode, to improve color as much as possible, at the least cost in brightness (we call his “tweaking” a “quick-cal”). More impressive, however, Mike reported that after his calibration, the HC5020 measured 10% brighter than last year.Ī side note for those of you considering this Epson projector or its closest competitor, the Panasonic PT-AE8000: In the recent PT-AE8000 review I commended Panasonic for increasing brightness, and said (anticipating no increase in calibrated brightness for this Epson), that Panasonic, has finally caught up to Epson in terms of calibrated lumens. When measuring the Dynamic mode it proved to be brighter, but by less than 5%. Very interesting! Although according to Epson and their specs, the Home Cinema 5020 UB is the same brightness as the older HC5010, there was a nice surprise.

Rc quickcal