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OTA Card

post #1 of 20
Thread Starter 
Not sure if this is even possible, but in our market, we cannot get ABC and FOX in HD, and with bowl season approaching, I want those channels in HD.

I can buy another receiver and antenna, but it would be nice if there was a card I could buy for my MythTV box that would allow me to plug an OTA antenna in.

Thoughts?
post #2 of 20
If I read your question correctly, you don't get HD on your local cable service, but you
have local affiliates who are broadcasting HD. You have a mythtv box running,
presumably with an analog card.

I'll leave it to others to recommend a best dtv card, but you can find out alot by
searching this form for pchdtv or air2pc.

The second part of the equation is what sort of antenna you'll need. The best
resource here is antennaweb.org.

have fun,
Todd
post #3 of 20
Quote:
Originally Posted by tallecks View Post


I'll leave it to others to recommend a best dtv card, but you can find out alot by
searching this form for pchdtv or air2pc.
Todd

I recommend looking at the HDHomerun networked tuner, which is more expensive than a single tuner card, but is worth the price in terms of flexibility and ease of setup.
post #4 of 20
Thread Starter 
Quote:
Originally Posted by tallecks View Post

If I read your question correctly, you don't get HD on your local cable service, but you
have local affiliates who are broadcasting HD. You have a mythtv box running,
presumably with an analog card.

I'll leave it to others to recommend a best dtv card, but you can find out alot by
searching this form for pchdtv or air2pc.

The second part of the equation is what sort of antenna you'll need. The best
resource here is antennaweb.org.

have fun,
Todd

You are correct to an extent. I get HD service through my provider now, just not my local ABC and FOX stations. These two happen to be the channels that will showing the College Bowl games I want come Jan.

As of right now, the only card I have in my mythtv box is the video card, as it was primarly built to just play my movies, not do any capture. I do all my capturing on my providers DVR.
post #5 of 20
Go to ebay and bid on one or more of the Air2PC Rev.02 cards. Strictly for OTA ATSC. They don't do QAM or NTSC, but I assume you don't care about that. I don't. I've got 5 of them in mythtv setup, 4 in main server and 1 in slave server. I sold the one expensive card I bought before I found these.:-)
post #6 of 20
Another inexpensive card to look at is the Kworld ATSC 110 - I bought one of ebay for $37, and it does QAM, NTSC, and ATSC. I'm currently configuring another ATSC 110 in a new slave mythbox I'm building. You can find it new some places for ~$70. I also bought an Avermedia A180 of ebay for a similar price and it does QAM and ATSC, but no NTSC. These cards aren't as prevalent on ebay, however, as the Air2PC cards.
post #7 of 20
Thread Starter 
Quote:
Originally Posted by newlinux View Post

Another inexpensive card to look at is the Kworld ATSC 110 - I bought one of ebay for $37, and it does QAM, NTSC, and ATSC. I'm currently configuring another ATSC 110 in a new slave mythbox I'm building. You can find it new some places for ~$70. I also bought an Avermedia A180 of ebay for a similar price and it does QAM and ATSC, but no NTSC. These cards aren't as prevalent on ebay, however, as the Air2PC cards.

KWORLD - TMCC KW-ATSC-110,KWORLD ATSC HDTV PCI TV TUNER

I assume this is the card you speak of?
post #8 of 20
Quote:
Originally Posted by jbiel View Post

KWORLD - TMCC KW-ATSC-110,KWORLD ATSC HDTV PCI TV TUNER

I assume this is the card you speak of?

Yep, that's it. just googled it to make sure it was the same one I bought and newegg.com appears to be running a good deal on it...
post #9 of 20
Thread Starter 
I scored an Air2PC card off of ebay to test out, hopefully they ship fast.
post #10 of 20
Quote:
Originally Posted by jbiel View Post

I scored an Air2PC card off of ebay to test out, hopefully they ship fast.

I should have added not to bid more than $25vfor them. I got the last 2 for under $20 each.
post #11 of 20
Quote:
Originally Posted by jbiel View Post

I scored an Air2PC card off of ebay to test out, hopefully they ship fast.

One other thing, you'll need to install the firmware driver. The card regiters without it, but won't work. Took me a couple of weeks to figure that one out since I didn't originally know about the firmware file. Google should find it. Put it in your firmware dir.

/lib/firmware/dvb-fe-bcm3510-01.fw
post #12 of 20
Thread Starter 
Card showed up today, weird that it registers in lspci as a Network Controller.

wnewell, where did you get the firmware?
post #13 of 20
Quote:
Originally Posted by jbiel View Post

weird that it registers in lspci as a Network Controller.

DTV cards are litle more then network interfaces. Most happen to also support some form of analog in, and so use an A/V decoder to digitize the analog input signals. The A/V decoder serves a second purpose as being a bridge to the PCI bus for both the digital signals and the digitzed content (from the analog inputs). The air2PC completely lacks any analog input functionality, and since it doesn't require an A/V decoder, it uses the B2C2 IC instead for bridge duty to the PCI bus. And now you know why it shows up as a network controller as opposed to a multimedia controller.

Quote:


where did you get the firmware?

Quote:
Originally Posted by wnewell View Post

Google should find it .... dvb-fe-bcm3510-01.fw

Big hint - 2nd hit.
post #14 of 20
Thread Starter 
Quote:
Originally Posted by CityK View Post

DTV cards are litle more then network interfaces. Most happen to also support some form of analog in, and so use an A/V decoder to digitize the analog input signals. The A/V decoder serves a second purpose as being a bridge to the PCI bus for both the digital signals and the digitzed content (from the analog inputs). The air2PC completely lacks any analog input functionality, and since it doesn't require an A/V decoder, it uses the B2C2 IC instead for bridge duty to the PCI bus. And now you know why it shows up as a network controller as opposed to a multimedia controller.

Big hint - 2nd hit.

For some odd reason, I was googling a different firmware than he listed. /me slaps forehead.
post #15 of 20
Thread Starter 
I got it all setup last night and scanned the channels properly and actually watched some live TV through Myth.

I did notice what appeared to be buffering problems and when I exited out of Myth, there were errors related to that, something to the effect of "buffering pause", but it was already midnight and I was beat.

I am going to move the HTPC into the living room and get it hooked up to the TV and see what my signal is like out there via the RCA indoor antenna I have:
Quote:
RCA Amplified Flat-Panel HDTV Antenna
Model: ANT537

With a flat-panel design, this HDTV antenna will provide you with improved reception for your favorite high-definition channels without taking up too much space.
Compatible with off-air HDTV broadcasts
25dB amplification with low noise filter improves reception of weak signals and optimizes picture clarity
Patented T-Bar UHF element is specifically tuned to receive signals in the UHF spectrum (channels 14 and up)
Adjustable gain control helps fine-tune channels


It was just something the local Bestbuy had in stock for me to test with, but I am sure it's not the best indoor antenna there is, but I really don't want to go crawling in my attic to mount anything either.

So tonight it's a matter of figuring out my buffering problem whether its related to signal or hardware resources, but I really don't think is hardware bound as the CPU is a 2.4ghz P4, 1Gb Ram, etc.
post #16 of 20
Quote:
Originally Posted by jbiel View Post

So tonight it's a matter of figuring out my buffering problem whether its related to signal or hardware resources, but I really don't think is hardware bound as the CPU is a 2.4ghz P4, 1Gb Ram, etc.

In the playback setup, are you using XvMC? if not, then the P4 may be taxed during playback, especially during OSD.
post #17 of 20
Thread Starter 
Being that this is the first time I've ever toy'd with Myth this heavily, I am *sure* it is some configuration problem. The other problem I have run into is audio when watching live tv.

Baby steps right?
post #18 of 20
Quote:
Originally Posted by jbiel View Post

Being that this is the first time I've ever toy'd with Myth this heavily, I am *sure* it is some configuration problem. The other problem I have run into is audio when watching live tv.

Baby steps right?

if it the tracking, hit rewind for a second. That should get it back in sync. Audio syncing problems aren't limited only to mythtv. There's also lots of audio config options.. Come to think of it, I can't remember an app I've used that's ever had close to as many options in it as mythtv does. Wouldn't have it any other way.:-)
post #19 of 20
Thread Starter 
The audio problem is that I don't have audio at all when watching live TV, but do when watching something from the media library I have imported.
post #20 of 20
little off topic, but has anyone actually been able to use the kworld 110 or 115 to tune qam unencrypted? if so please post your system specs (OS, software, drivers, etc...)
thanks,
-j
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