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Author Topic: 3D Televisions  (Read 507 times)
AI7RR
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Posts: 164




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« on: March 09, 2010, 03:50:15 PM »

In the news, Samsung and Panasonic are about to start delivery of 3D televisions. Ham operators beware! The 3D TV's are based on the plasma screen technology.

73,,Roger
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KL3DL
Member

Posts: 45




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« Reply #1 on: March 09, 2010, 06:11:32 PM »

I'm still a bit new...

Please elaborate on the plasma TV issue.

Thanks,
Shawn
KF5ETW
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WY3X
Member

Posts: 768




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« Reply #2 on: March 09, 2010, 06:30:12 PM »

Plasma TV's put out hash that can be received by (and cause interference to) amateur radios. -AJ4VM
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AD5X
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Posts: 1426




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« Reply #3 on: March 09, 2010, 06:45:01 PM »

My Pioneer 50" plasma TV is RF quiet.  Never had a problem.  Now the switching power supply in my powered subwoofer is a different matter.  Lots of RF hash (all on 30 meters) until I loaded it down with ferrites!

Phil - AD5X
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K9LJH
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Posts: 58




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« Reply #4 on: March 09, 2010, 07:31:58 PM »

The samsung is lcd and I think you might want to wait before judging the panasonic

leeh kc9rfl
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W6OU
Member

Posts: 184




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« Reply #5 on: March 09, 2010, 11:00:25 PM »

I've had a 3D television for over a year and it is neither a plasma nor an lcd.
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AI7RR
Member

Posts: 164




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« Reply #6 on: March 10, 2010, 12:12:19 PM »

Folks, I'm only repeating what I read in a very recent news article. And the new sets may not generate the rf that many plasma sets do. So please don't shoot the messenger. Just trying to alert those who may want to run out and buy one to check for the rf hash.

And my 50" Panasonic plasma is terrible with rf noise up through and including 20m.

73,,Roger
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K9LJH
Member

Posts: 58




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« Reply #7 on: March 10, 2010, 02:55:39 PM »

3D set for over a year and not an LCD or plasma?Huh  Hmmmmmm, now what could that be???  Perhaps a Misubishi DLP (what's my prize for guessing right???)

Lee
KC9RFL
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K7JQ
Member

Posts: 301




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« Reply #8 on: March 10, 2010, 03:56:52 PM »

Lee, you are correct! Most Mitsubishi DLP projection TV's made in the last two years are "3-D Ready", but they still need an add on adapter (powered glasses)that will be available for $129.00. You get the "Attaboy Award". Sorry, no Carribbean cruise.
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KI4SDY
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Posts: 1452




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« Reply #9 on: March 11, 2010, 06:46:29 AM »

I hear the hippies were getting the same effect in the 70s just by taking THC and watching TV.
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W0FM
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Posts: 2052




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« Reply #10 on: March 11, 2010, 11:15:47 AM »

The Samsung sets that I saw at Best Buy yesterday were neither plasma nor LCD, they were LED.

http://www.samsung.com/us/consumer/tv-video/televisions/led-tv/index.idx?pagetype=subtype&cid=ppc_hdt_goo_LED_LED%20Brand_Samsung%20LED%20TV


Terry, WØFM
« Last Edit: March 11, 2010, 11:17:41 AM by Terry Schieler » Logged
K7JQ
Member

Posts: 301




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« Reply #11 on: March 11, 2010, 11:58:46 AM »

"LED" TV's are actually LCD panels, but the light source (backlight) is LED, not fluorescent as in standard LCD sets. The advertising makes you think it's a completely different technology, which bumps the price up a bit.
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W0FM
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Posts: 2052




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« Reply #12 on: March 11, 2010, 01:41:22 PM »

Ah-HA!  Didn't know that.

Thanks,

Terry
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AE5NE
Member

Posts: 91




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« Reply #13 on: March 11, 2010, 02:18:02 PM »

It will be nice when we get actual LED-pixel TVs instead of the marketing lie "True LED" that is being put out now.  They would potentially offer extremely wide color ranges, ruggedness and long life, and very low black levels.

But its very hard to put (1920x1080x3) = 6.2 million LEDs in a 60" diagnonal space.... that's over 4000 LEDs per square inch!
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