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Tek 528 Waveform monitor, what is it?
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Tomas
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The Tektronix 528 waveform monitor is used in the TV industry to monitor the video waveform. The scope is graduated in IRE. A proper waveform will have 100 IRE of video and 40 IRE of sync. The scope can display two frames of video (what we normally leave ours set at) or a single frame of video. You can use the scope to tell if the video frequency response of the device that the scope is monitoring is correct. It gives an indication of the chroma level. The only use I know of for the scope is to monitor video. The scope is fairly old. The CRT is unique to this scope. I work at a TV station and use different vintage waveform monitors at the station. Hopefully all that I have stated is true for this monitor. Some waveform monitors allow you to view a single line of video. 73 Glenn WB4UIV At 03:28 PM 02/04/07, Tomas Larsson wrote:
Hi group. |
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Bill R
Tomas,
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It was used by TV stations to monitor video waveforms. Made in NTSC and PAL versions, I think. Bill Roberts Tomas Larsson wrote: Hi group. |
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Tomas Larsson
Ok, thanks.
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I thought it was something like that, obviously not that useful instument, unless you are doing video then. With best regards Tomas Larsson Sweden Excellent and cheap hosting, use Verus Amicus Est Tamquam Alter Idem -----Original Message-----__________________________________________________ Anv?nder du Yahoo!? ?r du tr?tt p? spam? Yahoo! E-post har det b?sta spamskyddet som finns |
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This appears to be true with respect to all NTSC test equipment.
I have a ton of signal generators and various NTSC monitors and I wonder what they will be worth soon with digital TV coming? Kinda like my 8-track test tapes and now even my VCR test equipment is getting a lot less use (almost none). My whole shop will be worthless soon!! Boo-hoo..... |
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REX ATHEY
From: mmoss111
To: TekScopes@... Sent: Monday, February 05, 2007 1:41 PM Subject: [TekScopes] Re: Tek 528 Waveform monitor, what is it? This appears to be true with respect to all NTSC test equipment. I have a ton of signal generators and various NTSC monitors and I wonder what they will be worth soon with digital TV coming? Kinda like my 8-track test tapes and now even my VCR test equipment is getting a lot less use (almost none). My whole shop will be worthless soon!! Boo-hoo..... . Our station just moved into it's new all digital facility and there is still a good bit of the analog stuff that we brought over from our old facility. I hoping they let us go through the old place soon and salvage lots of goodies. NTSC analog probably won't dissappear completely because there is so much of it around and a few of us engineers still left that want the stuff (and use it). There's a guy in Nevada that has "Quadraplex Park" which is a whole bunch of 2" video tape machines which he restored and has working in excellent condition. Right now I'm looking for an extender card for a 1410 NTSC generator (and 1410 generators and parts for that matter). I just got another one of these from Oregon and should be getting another one soon (old building, I hope). WE used to have one, but someone apparently borrowed it and didn't put it back in it's pouch in the service manual. Learned a lot from this machine and still learning a lot more. Rex |
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On Mon, Feb 05, 2007 at 06:41:41PM -0000, mmoss111 wrote:
This appears to be true with respect to all NTSC test equipment.Remember that cable will no doubt continue to supply NTSC VSB-AM TV for some time into the future in many markets. Too many retro folks don't have ATSC or QAM capability and many of those folks will happily expect their NTSC TVs to work on channel 3/4 AM VSB RF from somewhere for many years yet - maybe until it dies of old age in 15-20 years. These days only a rather small minority of households get their TV off the air - cable/satellite penetration is well over 85% in most places. So the shutdown of OTA NTSC in 2009 won't impact much. Of course compared to well tuned ATSC HDTV, the image quality on this old technology is PRETTY bad, but for many people they either don't notice or think that digital LCD/plasma is STILL way too expensive for mere TV... And downressing 720p or 1080i to NTSC can be done in a couple of chips these days... (though the 16:9 issue is a PAIN). -- Dave Emery N1PRE, die@... DIE Consulting, Weston, Mass 02493 "An empty zombie mind with a forlorn barely readable weatherbeaten 'For Rent' sign still vainly flapping outside on the weed encrusted pole - in celebration of what could have been, but wasn't and is not to be now either." |
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I'm part of the minority that gets my signal off the air. The signal has gotten much worse over the part few years, I think the providers don't want to maintain the equipment anymore and are just waiting to go full digital. I hate paying for stuff I can get for free. I wouldn't mind cable, but the fees keep increasing and I watch too much as it is! My daughter keeps hoping...
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-Dave -------------- Original message --------------
From: "David I. Emery" <die@...> On Mon, Feb 05, 2007 at 06:41:41PM -0000, mmoss111 wrote: This appears to be true with respect to all NTSC test equipment.Remember that cable will no doubt continue to supply NTSC VSB-AM TV for some time into the future in many markets. Too many retro folks don't have ATSC or QAM capability and many of those folks will happily expect their NTSC TVs to work on channel 3/4 AM VSB RF from somewhere for many years yet - maybe until it dies of old age in 15-20 years. These days only a rather small minority of households get their TV off the air - cable/satellite penetration is well over 85% in most places. So the shutdown of OTA NTSC in 2009 won't impact much. Of course compared to well tuned ATSC HDTV, the image quality on this old technology is PRETTY bad, but for many people they either don't notice or think that digital LCD/plasma is STILL way too expensive for mere TV... And downressing 720p or 1080i to NTSC can be done in a couple of chips these days... (though the 16:9 issue is a PAIN). -- Dave Emery N1PRE, die@... DIE Consulting, Weston, Mass 02493 "An empty zombie mind with a forlorn barely readable weatherbeaten 'For Rent' sign still vainly flapping outside on the weed encrusted pole - in celebration of what could have been, but wasn't and is not to be now either." |
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arthurok
am radio is still very much alive.
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maybe NTSC will take a similar course??? ----- Original Message -----
From: David I. Emery To: mmoss111 Cc: TekScopes@... Sent: Monday, February 05, 2007 5:51 PM Subject: Re: [TekScopes] Re: Tek 528 Waveform monitor, what is it? On Mon, Feb 05, 2007 at 06:41:41PM -0000, mmoss111 wrote: > This appears to be true with respect to all NTSC test equipment. > I have a ton of signal generators and various NTSC monitors and I > wonder what they will be worth soon with digital TV coming? > Kinda like my 8-track test tapes and now even my VCR test equipment is > getting a lot less use (almost none). My whole shop will be worthless > soon!! Boo-hoo..... Remember that cable will no doubt continue to supply NTSC VSB-AM TV for some time into the future in many markets. Too many retro folks don't have ATSC or QAM capability and many of those folks will happily expect their NTSC TVs to work on channel 3/4 AM VSB RF from somewhere for many years yet - maybe until it dies of old age in 15-20 years. These days only a rather small minority of households get their TV off the air - cable/satellite penetration is well over 85% in most places. So the shutdown of OTA NTSC in 2009 won't impact much. Of course compared to well tuned ATSC HDTV, the image quality on this old technology is PRETTY bad, but for many people they either don't notice or think that digital LCD/plasma is STILL way too expensive for mere TV... And downressing 720p or 1080i to NTSC can be done in a couple of chips these days... (though the 16:9 issue is a PAIN). -- Dave Emery N1PRE, die@... DIE Consulting, Weston, Mass 02493 "An empty zombie mind with a forlorn barely readable weatherbeaten 'For Rent' sign still vainly flapping outside on the weed encrusted pole - in celebration of what could have been, but wasn't and is not to be now either." |
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arthurok
i dont believe that vhs tapes will die off that quickly
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the 8 track cartridges fail from old age "lubricant and pressure pad failure"----- Original Message -----
From: REX ATHEY To: TekScopes@... Sent: Monday, February 05, 2007 3:57 PM Subject: Re: [TekScopes] Re: Tek 528 Waveform monitor, what is it? From: mmoss111 To: TekScopes@... Sent: Monday, February 05, 2007 1:41 PM Subject: [TekScopes] Re: Tek 528 Waveform monitor, what is it? This appears to be true with respect to all NTSC test equipment. I have a ton of signal generators and various NTSC monitors and I wonder what they will be worth soon with digital TV coming? Kinda like my 8-track test tapes and now even my VCR test equipment is getting a lot less use (almost none). My whole shop will be worthless soon!! Boo-hoo..... . Our station just moved into it's new all digital facility and there is still a good bit of the analog stuff that we brought over from our old facility. I hoping they let us go through the old place soon and salvage lots of goodies. NTSC analog probably won't dissappear completely because there is so much of it around and a few of us engineers still left that want the stuff (and use it). There's a guy in Nevada that has "Quadraplex Park" which is a whole bunch of 2" video tape machines which he restored and has working in excellent condition. Right now I'm looking for an extender card for a 1410 NTSC generator (and 1410 generators and parts for that matter). I just got another one of these from Oregon and should be getting another one soon (old building, I hope). WE used to have one, but someone apparently borrowed it and didn't put it back in it's pouch in the service manual. Learned a lot from this machine and still learning a lot more. Rex |
Marvin Moss
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