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SageTV Linux Discussion related to the SageTV Media Center for Linux. Questions, issues, problems, suggestions, etc. relating to the SageTV Linux should be posted here.

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Old 08-31-2008, 11:45 AM
jonno jonno is offline
Sage User
Join Date: Jun 2008
Posts: 7
Frequency out of range messages in log

I've a problem tuning to channels with my Hauppauge Nova-T 500 Dual DVB-T card under linux (fedora core 9)

The scan works well and I can tune to channels outside of sage using tzap so I know the card is working. I've also had this card working well in the past on a different machine so I'm at a loss why suddenly there's a problem.

If I look in /var/log/messages I see the following messages for every channel zap: -

sagebox kernel: DVB: frontend 1 frequency 9018 out of range (48000000..860000000)

I notice in the .frq file in the sage/server directory that 9018 is my network ID so the system somehow seems to be passing the wrong parameter to the tuner card. If I replace 9018 in the .frq file with the correct frequency I seem to be able to get the system to tune to the channel some of the time however there is still a reference to 9018 in and as a result I still see the system try to tune to this frequency.

Has anyone else seen this problem? Any suggestions as to how to correct this?

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Old 08-31-2008, 08:28 PM
Conejo Conejo is offline
Sage Expert
Join Date: May 2006
Location: California
Posts: 645
I don't run a Linux box, but...

There are two .frq files that SageTV utilizes as translation/lookup_tables.
One contains a token channel to frequency used in the initial SCAN (channel discovery) process.
The second is generated by the SCAN procedure and is used to convert the "Physical Channel" data used in the SageTV REMAP function to the data required by the driver to complete the tune process on your receiver.

Unless this second file has been corrupted or otherwise modified, it should contain some COMMENTED header info and then a table of channel tune information.


Can you copy and paste the file here in a #code wrap?
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Old 09-01-2008, 12:41 PM
jonno jonno is offline
Sage User
Join Date: Jun 2008
Posts: 7
I've attached the first few lines of my .frq file. This is where I found the 9018 reference in the network ID.

VERSION 3.0, country:United Kingdom-Northern Ireland@Divis
#fec_rate:     1:fec1/2, 2:fec2/3, 3:fec3/4, 4:fec3/5, 5:fec4/5, 6:fec5/6, 7:fec
5/11, 8:fec7/8 9:fec8/9
#fec:          1:VBC, 2:RS/2048, 3:maximum
#polarisation: 1:linear_H, 2:Linear_V, 3:Circular_L, 4:Circular_R
#modualtion:   0:QPSK, 1:16QAM, 2:32QAM, 3:64QAM, 4:128QAM, 5:256QAM, 6:QAM_AUTO
, 7:8VSB 8:16VSB
#ctrlbits:     0:diasable, 1:enable, 3:encrypted
#  ch:index onid:networkid tsid:transport_id sid:sevrice_id frq:frequency band:b
and_width ctrl:ctrlbits
#  CH:11 onid:123 sid:456 tsid:789 frq:670000 band:8 ctrl:1  #:BBC-WORD

CH:1 onid:9018 tsid:4157 sid:4221 frq:538000000 band:8 ctrl:1 #:BBC-ONE-NI
CH:2 onid:9018 tsid:4157 sid:4285 frq:538000000 band:8 ctrl:1 #:BBC-TWO-NI
CH:3 onid:9018 tsid:4157 sid:4413 frq:538000000 band:8 ctrl:1 #:BBC-NEWS
CH:4 onid:9018 tsid:4157 sid:4669 frq:538000000 band:8 ctrl:1 #:CBBC-Channel
CH:5 onid:9018 tsid:8212 sid:8276 frq:570000000 band:8 ctrl:1 #:UTV
CH:6 onid:9018 tsid:8212 sid:8384 frq:570000000 band:8 ctrl:1 #:Channel-4
CH:7 onid:9018 tsid:8212 sid:8448 frq:570000000 band:8 ctrl:1 #:E4
Also note the entry in the file which again includes the network ID. I'm not sure when and how sage uses both of these sets of parameters and of course why it should be trying to use the network ID as the frequency to which the card should tune.

.... etc etc.

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Old 09-01-2008, 01:16 PM
Conejo Conejo is offline
Sage Expert
Join Date: May 2006
Location: California
Posts: 645
Your .frq file looks normal, like the one found in this post from last year: 6.2 lost a bunch of channels in the UK

"9018-24576-25856-33" is the PHYSICAL number assigned to a station in your Channel Setup. It's usually a concatenation of some other token (onid, tsid, sid) used by SageTV to lookup tuning information in the .frq file.

It's like you have an internal pointer referencing the wrong token. Instead of using the .frq file to return the frequency it's returning the onid.

Unless someone has another suggestion, you might want to try reinstalling SageTV and see if that corrects the issue. Don't forget to back up your wiz.bin file.

Last edited by Conejo; 09-01-2008 at 01:26 PM.
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