Author Topic: Analog TV Transmitter Teardown Teaser  (Read 28802 times)

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Offline calexanian

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Re: Analog TV Transmitter Teardown Teaser
« Reply #25 on: January 04, 2014, 05:37:54 pm »
We really need to get you a new car.. that dinosaur-extact driven thing could use a Mr.Fusion …

Dinosaur extract if fine. Just something more effecient..  I think they need a jetta TDI or an Audi A3 diesel sports wagon. I get 46+ mpg highway and 36+ mpg in town in my jetta, and it feels like a real car.
Charles Alexanian
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Lurch

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Re: Analog TV Transmitter Teardown Teaser
« Reply #26 on: January 04, 2014, 05:44:59 pm »
and maybe a backhoe or two to bring down that large tower ...

Steady on, digital services are still on, and I'll bet it's also a repeater station as well, and it will have some mobile cells on it.

Have you been near this one?
 

Offline free_electron

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Re: Analog TV Transmitter Teardown Teaser
« Reply #27 on: January 04, 2014, 06:09:01 pm »
 Beam it form satellite. no need for multi megawatt transmitters to get 100 miles of range. much more energy efficient. and the satellite is solar powered !
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Offline N2IXK

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Re: Analog TV Transmitter Teardown Teaser
« Reply #28 on: January 04, 2014, 06:20:16 pm »
Those satellites probably use vacuum tubes in the output stages of their transponders, as well....

http://en.wikipedia.org/wiki/Traveling-wave_tube

Far enough above the earth to be safe from your sledgehammer and side grinder, though...:)
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Offline OrangeJacketGuy

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Re: Analog TV Transmitter Teardown Teaser
« Reply #29 on: January 04, 2014, 06:26:03 pm »
Damn tease was right -- there's all kinds of hardware porn there, and that shot there with Dave and the rails was just too good...
 

Offline Jon86

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Re: Analog TV Transmitter Teardown Teaser
« Reply #30 on: January 04, 2014, 06:49:34 pm »
I hope that first bit was scripted?  ;)
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Online PA0PBZ

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Re: Analog TV Transmitter Teardown Teaser
« Reply #31 on: January 04, 2014, 06:56:34 pm »
I hope that first bit was scripted?  ;)

Yes it was.
Keyboard error: Press F1 to continue.
 

Offline electronics man

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Re: Analog TV Transmitter Teardown Teaser
« Reply #32 on: January 04, 2014, 08:24:31 pm »
I grew up ne'er in the shadow of the alexandra palace transmitter where the worlds first tv signal was transmitted the bbc was there until the 60s. I wonder what old equipment they have there hmmm......
« Last Edit: January 04, 2014, 08:30:41 pm by electronics man »
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Offline atw60444

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Re: Analog TV Transmitter Teardown Teaser
« Reply #33 on: January 04, 2014, 08:29:38 pm »
I hope that first bit was scripted?  ;)

 Yeah, I think the station Tech. needs acting lessons!   :-DD
 

Offline jmcdonald

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Re: Analog TV Transmitter Teardown Teaser
« Reply #34 on: January 04, 2014, 11:33:46 pm »
We really need to get you a new car..

or at least repair the roof lining.

http://youtu.be/-MmT72NDtTs

would make a good repair video for the Altzone youtube channel
 

Offline EEVblog

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Re: Analog TV Transmitter Teardown Teaser
« Reply #35 on: January 04, 2014, 11:38:55 pm »
We really need to get you a new car.. that dinosaur-extact driven thing could use a Mr.Fusion …

How do you think a crowd funding campaign to get me a Tesla would go down?
I'm surprised my POS Vectra got me there and back
 

Offline notsob

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Re: Analog TV Transmitter Teardown Teaser
« Reply #36 on: January 04, 2014, 11:45:58 pm »
perhaps we could get vincent to take a photo of a cardboard cutout of dave sitting in his tesla, just to give dave some inspiration, or make him even more jealous of vincent.
 

Offline calexanian

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Re: Analog TV Transmitter Teardown Teaser
« Reply #37 on: January 05, 2014, 12:24:17 am »
We really need to get you a new car.. that dinosaur-extact driven thing could use a Mr.Fusion …

How do you think a crowd funding campaign to get me a Tesla would go down?
I'm surprised my POS Vectra got me there and back

You would have to get the extended range battery. We had one for a few days at the adam carolla podcast and we all had a chance to try it out. Not a bad car. By the time you get the top end battery though you were looking at $120,000 or so! Its still a first adopter type thing. 
Charles Alexanian
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Offline NiHaoMike

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Re: Analog TV Transmitter Teardown Teaser
« Reply #38 on: January 05, 2014, 06:02:03 am »
Get as much of the high power RF stuff as you can. The ham radio operators can make use of it.
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Offline calexanian

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Re: Analog TV Transmitter Teardown Teaser
« Reply #39 on: January 05, 2014, 06:59:53 am »
We really need to get you a new car.. that dinosaur-extact driven thing could use a Mr.Fusion …

How do you think a crowd funding campaign to get me a Tesla would go down?
I'm surprised my POS Vectra got me there and back

Not exactly the same, but close enough. Only top gear could do it..
Charles Alexanian
Alex-Tronix Control Systems
 

Offline vk6zgo

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Re: Analog TV Transmitter Teardown Teaser
« Reply #40 on: January 05, 2014, 07:39:29 am »
Beam it form satellite. no need for multi megawatt transmitters to get 100 miles of range. much more energy efficient. and the satellite is solar powered !

The Earth Station isn't!
They cost as much to run as TV transmitters any day of the week!

The EIRP of City TV Analog Transmitters in Australia is around 100kW for VHF,a bit more for UHF,but that isn't real power,as the antenna array has around 10dB of power gain within its coverage area.

The CH7 Tx in Perth WA produced 13kW sync tip power (same as PEP,but easier to measure!),
allowing for transmission line losses & antenna gain,it came out as right on 100kW EIRP.

The CH2 Tx had two 10kW units in parallel,as the lowband antennas had less gain.

The quoted output from FM & DAB transmitters is also EIRP.

Contrast this to MF AM,where if you want 55kW.you have to generate it,there is no antenna gain to help you.
« Last Edit: January 05, 2014, 07:41:46 am by vk6zgo »
 

Offline vk6zgo

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Re: Analog TV Transmitter Teardown Teaser
« Reply #41 on: January 05, 2014, 07:57:27 am »
We really need to get you a new car.. that dinosaur-extact driven thing could use a Mr.Fusion …

I must say i am a bit disappointed though. I was hoping for sledgehammers, discgrinders and other heavy equipment to tear down the power endstage ( especially those huge vacuumtubes. I'd love the sound of those being crushed by a large hammer ) , and maybe a backhoe or two to bring down that large tower ...

It would have to be a quite serious hammer,& it might be a bit dangerous,as those tubes use beryllium internally (not in the external ceramic,but for thermal coupling inside).

Bring down the tower?--Some backhoe!!
Another problem,that thing is right in the middle of suburbia,unlike the Perth ones which are up on the Darling Scarp,well out of the way.
« Last Edit: January 05, 2014, 07:59:24 am by vk6zgo »
 

Offline Jon86

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Re: Analog TV Transmitter Teardown Teaser
« Reply #42 on: January 05, 2014, 12:21:24 pm »
I hope that first bit was scripted?  ;)

 Yeah, I think the station Tech. needs acting lessons!   :-DD

I agree!
Death, taxes and diode losses.
 

Offline electronics man

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Re: Analog TV Transmitter Teardown Teaser
« Reply #43 on: January 05, 2014, 12:59:04 pm »
He should make a second journey ther too get even more stuff. He shouldn't tear it all downe because that stuff could be quite valuable in the future.
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Lurch

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Re: Analog TV Transmitter Teardown Teaser
« Reply #44 on: January 05, 2014, 03:33:11 pm »
that stuff could be quite valuable in the future.

That's the exact reason a lot of the members of this community have piles and piles of worthless shit that they can't get rid of, me included!
 

Offline (In)Sanity

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Re: Analog TV Transmitter Teardown Teaser
« Reply #45 on: January 05, 2014, 04:09:11 pm »
We really need to get you a new car.. that dinosaur-extact driven thing could use a Mr.Fusion …

How do you think a crowd funding campaign to get me a Tesla would go down?
I'm surprised my POS Vectra got me there and back

I think Practical and efficient would go over better.   I went from an SLK (non practical) to a Golf TDI,  and loving every minute of it.   Plus now I can go to a ham fest and load all the crap I want in the back without issue.   All while getting 40+ mpg.   

P.S.  I got surprised and smoked by a Tesla model S while driving the SLK.   I left some vehicle behind and before I could realize it I had a silent whoosh go by me.  I then realized what I had passed was a Tesla.   It was topic for conversation at work that morning.  Nice cars.

Jeff
 

Offline tom66

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Re: Analog TV Transmitter Teardown Teaser
« Reply #46 on: January 05, 2014, 07:54:16 pm »
We really need to get you a new car.. that dinosaur-extact driven thing could use a Mr.Fusion …

How do you think a crowd funding campaign to get me a Tesla would go down?
I'm surprised my POS Vectra got me there and back

I'd personally contribute to see you tear down a wrecked Roadster -- including some lovely photos of all of the power and system electronics!!
I have seen them go for as "little" as £10k if the battery pack is dead/bricked (0 miles for 3+ months.)
 

Offline free_electron

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Re: Analog TV Transmitter Teardown Teaser
« Reply #47 on: January 05, 2014, 10:22:20 pm »
We really need to get you a new car.. that dinosaur-extact driven thing could use a Mr.Fusion …

How do you think a crowd funding campaign to get me a Tesla would go down?
I'm surprised my POS Vectra got me there and back

I'll chip in my 5$ ( to offset the complaints from people that think the tax break comes out of their pocket )
Professional Electron Wrangler.
Any comments, or points of view expressed, are my own and not endorsed , induced or compensated by my employer(s).
 

Offline calexanian

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Re: Analog TV Transmitter Teardown Teaser
« Reply #48 on: January 05, 2014, 10:26:32 pm »
Lets just do a electric upgrade on that Vectra. What year is it?
Charles Alexanian
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Lurch

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Re: Analog TV Transmitter Teardown Teaser
« Reply #49 on: January 05, 2014, 10:27:22 pm »
 


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