Different cards - Different Frequencies

[noonereallycares]

TV-Server Version:
MediaPortal Version: 1.0 RC2
MediaPortal Skin: Indigo
Windows Version: Windows XP Professional SP2
CPU Type: Intel C2D E6750 2.66ghz
HDD: Western Digital 320Gig
Memory: 2Gig Kingston 800mhz
Motherboard: Gigabyte EP35-DS3R
Video Card: Gigabyte 8600GT 512M
Video Card Driver: 169.21
Sound Card: Realtek
Sound Card AC3:
Sound Card Driver:
1. TV Card: Hauppauge 2200
1. TV Card Type: DVB-T
1. TV Card Driver: 6.1.5.25282
2. TV Card: Dvico FusionHDTV
2. TV Card Type: DVB-T
2. TV Card Driver: 5.1.12.1
3. TV Card: Hauppauge PVR150
3. TV Card Type: Analog
3. TV Card Driver: 2.0.48.25037
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec: Nvidia PureVideo
MPEG2 Audio Codec: Nvidia PureVideo
h.264 Video Codec:
Satelite/CableTV Provider:
HTPC Case: Antec Sonata
Cooling:
Power Supply: Antec Truepower 430W
Remote: Logitech Harmony 525
TV: JVC
TV - HTPC Connection: Component

In an attempt to resolve some tuning problems with my HTPC, I went out and purchased a splitter / booster. Once installed, each card gets its own feed, with nothing daisy-chained. From here, I went into the TV Server Configuration tool and rescanned the channels on my DVB-T tuner cards. This is where it gets strange.

The first Hauppauge DVB-T tuner sees all transport streams, but some of the signals are slightly off. (SBS and Nine are off by 0.125 MHz.

The second Hauppauge DVB-T tuner fails to pick up two of the available transport streams.

The Dvico tuner sees all the transport streams, but only SBS is offset by 0.125 MHz.

Does anyone have any suggestions as to what steps I can take to resolve the problem?

[Taipan]

Originally Posted by noonereallycares

The first Hauppauge DVB-T tuner sees all transport streams, but some of the signals are slightly off. (SBS and Nine are off by 0.125 MHz.

If you are located in Melbourne, I think you will find that Nine is on 191,625 KHz and SBS is on 536,625 KHz which means your scan results are correct

Originally Posted by noonereallycares

The second Hauppauge DVB-T tuner fails to pick up two of the available transport streams.

This could mean that your new splitter/booster is providing too little or too much signal strength for this tuner?

Originally Posted by noonereallycares

The Dvico tuner sees all the transport streams, but only SBS is offset by 0.125 MHz.

Hmmm - that is odd....

Originally Posted by noonereallycares

Does anyone have any suggestions as to what steps I can take to resolve the problem?

Assuming that the scan results from the first tuner are correct (which I think they are), then just map those channels to the other two tuners.

[noonereallycares]

Originally Posted by Taipan

This could mean that your new splitter/booster is providing too little or too much signal strength for this tuner?

The card only has one RF input. It seems strange that each tuner on the same card handles the signal differently.

I will drop the gain and see how it reacts.

I played with the booster, with varying results.

The results varied from missing transport stream to flaky channel detection. In same cases I got corrupt channel names and only some of the transport stream's contents.

I removed the booster and went back to having the 2200 daisy-chained to the Dvico. To resolve the tuning differences between the two cards, I edited the dvbt.xml file and amended the SBS and CH9 frequencies. Now both cards use the same frequencies.

One problem remains. (apart from the need to have my PC turned on or the TV does not receive a strong enough signal).

SBS HD is the only SBS channel that I can record. I can view the others, but any recording results in a 0 byte MPEG file.