RadioBanter - View Single Post

[email protected] · May 27th 14, 07:22 AM posted to rec.radio.amateur.boatanchors

Jerry Stuckle wrote:
On 5/26/2014 1:17 PM, wrote:
Jerry Stuckle wrote:
On 5/25/2014 10:18 PM, wrote:
Jerry Stuckle wrote:
On 5/25/2014 12:03 PM, wrote:
gareth wrote:
wrote in message
...
CD-1 Color Bar and Dot Generator

The one item in your list that no longer has any use!

I've got one of those, but not Heathkit, and PAL not NTSC

Closed Circuit TV is still mostly analog.

That's changing. We install much more digital (IP-based) systems than
analog, nowadays, including updating old analog systems.

Analog is still out there - but as the price of digital cameras comes
down, analog is fading.

Yes, new systems are predominantly digital, however there is a HUGE
installed base of analog no one is going to replace just because, though
some are replacing the recording/viewing portion with digitizers.

If you have to dig up and replace miles of cable to have digital cameras,
the cameras are likely to stay analog for a long time.

That's where you're wrong. Probably 1/3 of our installs is replacing
old analog systems with digital. The higher quality of a digital
picture is the main selling point, although the digital recording also
helps.

I am describing systems I personally know of and deal with, so no, I am
not "wrong".

I am describing systems my company interacts with daily. And yes, you
are "wrong".

You are talking about what you are involved in and I am talking about
what I am involved in.

From my perspective it is YOU that is wrong.

snip

Digital cameras are only installed for new construction and the quality
of the digital video is no better than the analog video as the analog
cameras were high quality video since day 1.

Again, wrong.

Nope, it is exactly what is happening with the systems I am involved in.

Obviously you are wrong.

snip

Your experience and situation may be different.

They definitely are. We are in the commercial business.

I am not.

Here'a clue; the 2014 budget for the sub-organization I deal with is $21.1 B.

Yes, that is a 'B'.

And BTW - we do it over the existing coax. No "miles of cable" are
replaced.

Such is not possible for many reasons in the systems I deal with, and
yes, there are literally hundreds of miles of cable.

You are obviously not familiar with HDBASE-T - which is a recognized
standard, just like HDMI, and is supported by multiple manufacturers.
Depending on the manufacturer, it is quite easy to send up to 4 IP
cameras over one coax up to 1,500 ft. - farther than analog cameras will go.

What part of "miles" is it you fail to understand?

And of course there is more than just miles of of video cable and the
stuff to get the video to go for miles.

There is also miles of the multidrop, 1200 baud twisted pair copper for PTZ.

And if you need more, there are any number of solutions - all over coax.

I don't know what you deal with - but it's obviously not the current
state of the art. Sounds like something out of the 1980's (or before).

That would be about the time frame of the first installed camera.

When the replacement costs are in the hundreds of millions of dollars
and the system runs 24/7/365 you don't replace everything just to have
the latest technology; you update through slow and carefully planed
attrition.

--
Jim Pennino