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<blockquote data-quote="deeptho" data-source="post: 1152168" data-attributes="member: 215446">I do not have a 6903 card, but I tried the closest thing available: tbs5927 and it seems to work fine:```tsp -I dvb --device-name /dev/dvb/adapter12:0 --satellite-number 3 --frequency&nbsp; 11432000000 --symbol-rate&nbsp; 29900000 --polarity vertical&nbsp; --delivery-system DVB-S2 --modulation 8-PSK --fec-inner 3/4&nbsp; -P bitrate_monitor --periodic-bitrate 5 -O drop* bitrate_monitor: 2023/09/22 21:56:25, TS bitrate: 65,117,184 bits/s, net bitrate: 64,101,082 bits/s* bitrate_monitor: 2023/09/22 21:56:30, TS bitrate: 65,189,376 bits/s, net bitrate: 64,160,339 bits/s^C* tsp: user interrupt, terminating..```Possible reasons why it does not work for you1. not using the most recent drivers2. an lnb which has a large deviation in local oscillator frequency: neumodvb compensates for this problem and then tunes, but other software does not and is therefore more critical for tuning. For example, with a &quot;corrected&quot; frequency it may work3. some specific bug for 6903.4. some problem with the settings.5. some problem with your diseqc setup: weird problems occur at powerup. Therefore neumodvb inserts some small delays at specific points during tuning. Normally tsp will also do that, but the delays may not be sameand perhaps not enough.You could compare the calls made to the driver by neumodvb and by tsp, e.g., using strace or by activating kernel debug logging and checking the messages.&nbsp; That could tell if there is a real bug.</blockquote>

[QUOTE="deeptho, post: 1152168, member: 215446"] I do not have a 6903 card, but I tried the closest thing available: tbs5927 and it seems to work fine: ``` tsp -I dvb --device-name /dev/dvb/adapter12:0 --satellite-number 3 --frequency 11432000000 --symbol-rate 29900000 --polarity vertical --delivery-system DVB-S2 --modulation 8-PSK --fec-inner 3/4 -P bitrate_monitor --periodic-bitrate 5 -O drop * bitrate_monitor: 2023/09/22 21:56:25, TS bitrate: 65,117,184 bits/s, net bitrate: 64,101,082 bits/s * bitrate_monitor: 2023/09/22 21:56:30, TS bitrate: 65,189,376 bits/s, net bitrate: 64,160,339 bits/s ^C* tsp: user interrupt, terminating.. ``` Possible reasons why it does not work for you 1. not using the most recent drivers 2. an lnb which has a large deviation in local oscillator frequency: neumodvb compensates for this problem and then tunes, but other software does not and is therefore more critical for tuning. For example, with a "corrected" frequency it may work 3. some specific bug for 6903. 4. some problem with the settings. 5. some problem with your diseqc setup: weird problems occur at powerup. Therefore neumodvb inserts some small delays at specific points during tuning. Normally tsp will also do that, but the delays may not be same and perhaps not enough. You could compare the calls made to the driver by neumodvb and by tsp, e.g., using strace or by activating kernel debug logging and checking the messages. That could tell if there is a real bug. [/QUOTE]

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