Jvc sa-t400u tbc

[Dawgsfan]

Anyone have experience using a JVC SA-T400U TBC? I have a chance to get one but I've never used a TBC before, so I don't know if it's worth getting. I'd use it to (hopefully) improve the quality of VHS tapes recorded in SLP/EP mode.
Thanks.

[dellsam34]

Frame TBC does not help improve picture quality, A better VCR does.

[Alwyn]

Sounds flash. I found this on the Internet...

The following specs are from JVC: The SA- T 400U is a sophisticated Time Base Corrector designed for use in either S- VHS or composite video systems where high signal quality is maintained by processing in the component format. In addition, time base errors of up to 2 fields can be corrected by the full frame memory.High picture quality The SA- T 400U assures high picture quality by processing the signal in 4'1'1 component format, with 8-bit quantization of both Y and C components, Resolution is greatly improved through use of new wideband CCD comb filter, BNC and 7-Pin V/C 358 connectors The video signal to be corrected can be either a composite signal input via a BNC connector or a separate Y /C signal input via a 7 -pin connector Three signal formats are output after correction, composite, a separate Y/C signal and Y, B-Y, R-Y component signals, Built-in frame memory With its frame memory, the SA- T 400U can perform timebase correction over a wide range, extending over two fields Dropout compensator Dropout compensation is built into the SA- T 400U to ensure higher picture quality V signal delay line A digital delay line is provided to adjust the delay of the Y signal with respect to the C signal; for precise adjustment, the delay can be adjusted in 16 steps of 74 ns Swltchable ACC circuit The SA- T 400U incorporates an Automatic Chroma Level Control (ACC) circuit which automatically adjusts the chroma level of the output circuit with respect to the burst level of the input signal, Black stretch circuit The black level of the luminance signal with respect to the input signal is adjustable Frame and field freeze Frame and field freeze can be performed both manually or automatically, When in the automatic mode the SA-T400U will freeze the picture on the last good field of video, Remote control capabIlity An optional remote control can be connected for remote operation for most functions of the SA-T 400U,GENERAL AC power requirement: AC 120 V, 50/60 Hz Power consumption: 76 W Operating temperature: +5 to +40°C Operating humidity: 10 to 90% Dimensions: 430(W) x 44(H) x 530(D) mm (16-15/16" x 1-3/4" x 20-7/8") Weight: Approx. 9 kg (19.9 Ibs) VIDEO Signal process: Component (V, A-Y, B-Y = 4:1 :1) Time-base correction range: Infinite (1 frame/2 fields) Sampling frequency: V: 13.5 MHz, C: 3.3 MHz (4:1 :1 format) Sampling rate: v. 8-bit, C: 8-bit Frequency response: V: 5 MHz -3 dB, C: 3.58 MHz :to.5 MHz -3 dB Signal-to-noise ratio: 56 dB p-p/rms with quanting effects (SC trap; on with Shibasoku noise meter) DG (APL 10% to 90%): 2% DP (APL 10% to 90%): 2° K factor (2T): 2% (Heterodyne mode) H tilt: 1 % V tilt: 1 % White clip: 110 IRE Black clip: 0 IRE Jitter: v. :t15 nsec, C: :t2° Freeze: Frame/field (A/B) selectable Auto freeze: Bad video sensor (on/off) Vertical blanking: On/off selectable INPUT SIGNAL Video input Composite: 1.0 Vp-p, 75 ohms V /C 358: V: 1.0 Vp-P. 75 ohms. C: 0.286 Vp-P. 75 ohms Reference input: 1.0 Vp-p (VBS). 0.45 Vp-p (BB) 75 ohms RF (DOC) input: 0.2 to 1.0 Vp-P. 75 ohms OUTPUT SIGNAL Video output Composite: 1.0 Vp-p, 75 ohms V /C 358: V: 1.0 Vp-p, 75 ohms C: 0.286 Vp-p, 75 ohms Component: V: 1.0 Vp-P. 75 ohms A-Y/B-Y: 0.7 Vp-p,75 ohms } (100 ' 100 , 0 coor I bar) Advanced sync output: 4.0 Vp-P. 75 ohms

[dellsam34]

It seems like you're new to marketing, Even then, 4:1:1 8bit negates everything already said.

[Alwyn]

Whatever you reckon.

[aramkolt]

Other issue with it I think is that it doesn't have S-Video input connectors (Same signal goes in via 7 pin dub connector), though those connectors are pretty expensive to make your own adapter cable. You could always wire a regular S-Video connector in place of it though since the actual signal information is the same.

Frame TBCs generally will improve the capture if there's vertical full image shaking or if the capture card drops a bunch of frames. Some cards won't even display an image depending how picky they are without a full frame TBC, though line TBCs do tend to improve frame timing significantly as well, just not to the same degree as a dedicated frame TBC I think.