Same antenna, Big difference between 2 Tuners - Canadian TV, Computing and Home Theatre Forums

celek · 2011-01-07, 09:43 AM

Weird stuff...

Antenna CM4221 (the old model)
Cable up to my splitter
- 1 cable, 9 feet to a HTPC, Hauppauge 1600, I receive 11 channels (no CIII, no WUTV, barely CHCH) I am 16th and 48 in Markham
- 1 cable , 30 feet, HDTV LG (or something like that), I get all 20+ channels perfect reception...

I would conclude it is my Haupauge card but.. am I wrong ? (I use media player, wintv and .. can't remember the 3rd one, to check signal strength) and they all report the same issue. Which kinda makes sense.
I believe I installed the latest fix and also I checked the cable was fine (i did not add a filter on the cable to the HTPC)

Thoughts ? links ? Blame ?

Chris

Marbles_00 · 2011-01-07, 11:31 AM

If you can, you could determine if it could be a cable issue. Run an extension from the 9' cable to your TV. If you pickup only 11 or less channels, then your issue is the cable. If you pickup all 20+ still, then the likely candidate is the 1600 card.

From researching, the 1600 is a mediocre card, and has very mixed reviews. It is an older platform card, which utilizes older tuner technology. A HVR-2250 or 1250 are more sensitive, and could be possible replacements if you have a free PCIe x1 slot available. The 950 USB stick is also supposed to incorporate a decently sensitive tuner as well. There are other manufactures too, but I have not exposed myself to their products, so I can't really recommend anything from them, but others should be able to.

jbracing24 · 2011-01-07, 12:04 PM

It is a fact that the newer the tuner version, the better the capture rate. I have an older Samsung tuner box which may get only half the channels on the same set up as the newest versions built into TV's.

Marbles_00 · 2011-01-07, 12:38 PM

You should also swap ports on the splitter to rule out a bad splitter port.

300ohm · 2011-01-07, 02:08 PM

Quote:

It is a fact that the newer the tuner version, the better the capture rate.

Plus they have better multipath performance.

Jase88 · 2011-01-07, 07:00 PM

I have seen tuners with widely varying degrees of adjacent channel or strong signal rejection.

2011-01-07, 09:43 AM	#1
celek Rookie Join Date: Jun 2008 Posts: 28	Same antenna, Big difference between 2 Tuners Weird stuff... Antenna CM4221 (the old model) Cable up to my splitter - 1 cable, 9 feet to a HTPC, Hauppauge 1600, I receive 11 channels (no CIII, no WUTV, barely CHCH) I am 16th and 48 in Markham - 1 cable , 30 feet, HDTV LG (or something like that), I get all 20+ channels perfect reception... I would conclude it is my Haupauge card but.. am I wrong ? (I use media player, wintv and .. can't remember the 3rd one, to check signal strength) and they all report the same issue. Which kinda makes sense. I believe I installed the latest fix and also I checked the cable was fine (i did not add a filter on the cable to the HTPC) Thoughts ? links ? Blame ? Chris

2011-01-07, 11:31 AM	#2
Marbles_00 Join Date: Feb 2005 Location: Hamilton: Garth and Rymal Posts: 592	If you can, you could determine if it could be a cable issue. Run an extension from the 9' cable to your TV. If you pickup only 11 or less channels, then your issue is the cable. If you pickup all 20+ still, then the likely candidate is the 1600 card. From researching, the 1600 is a mediocre card, and has very mixed reviews. It is an older platform card, which utilizes older tuner technology. A HVR-2250 or 1250 are more sensitive, and could be possible replacements if you have a free PCIe x1 slot available. The 950 USB stick is also supposed to incorporate a decently sensitive tuner as well. There are other manufactures too, but I have not exposed myself to their products, so I can't really recommend anything from them, but others should be able to. __________________ Mayhem Creations-"The Art Of Emotional Creation" sites.google.com/site/maycreates/Home -for viewing all my DIY projects

2011-01-07, 12:38 PM	#4
Marbles_00 Join Date: Feb 2005 Location: Hamilton: Garth and Rymal Posts: 592	You should also swap ports on the splitter to rule out a bad splitter port. __________________ Mayhem Creations-"The Art Of Emotional Creation" sites.google.com/site/maycreates/Home -for viewing all my DIY projects

2011-01-07, 07:00 PM	#6
Jase88 Moderator Join Date: Jan 2009 Location: Kitchener, ON Posts: 4,109	I have seen tuners with widely varying degrees of adjacent channel or strong signal rejection. __________________ DMX 68' tower, HyGain HAM 5 rotator, Antennas Direct 91-XG & C5, Channel Master 7777 preamp, Siemens surge protection

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

2011-01-07, 12:04 PM	#3
jbracing24 Veteran Join Date: Jan 2005 Location: Thorold Ontario Posts: 2,265	It is a fact that the newer the tuner version, the better the capture rate. I have an older Samsung tuner box which may get only half the channels on the same set up as the newest versions built into TV's.