Problems with DiSEqC 1.2 and TBS6922 card

[lujo]

I have done more testing and those are my findings:

 

All those testings are done with just scanning between transponders between different satellites.

 

1X means first time try = NOT ok

2X means second time and all others try = NOT ok

 

22000 H and V transponders

19.2E 12515 H 22000 --> 28.2E 10714 H 22000 | DVBViewer = OK | TVSource = OK

19.2E 12515 H 22000 <-- 28.2E 10714 H 22000 | DVBViewer = OK | TVSource = OK

 

19.2E 12515 H 22000 --> 28.2E 10876 V 22000 | DVBViewer = 1X, 2X | TVSource = 1X, 2=OK

19.2E 12515 H 22000 <-- 28.2E 10876 V 22000 | DVBViewer = OK | TVSource = OK

 

19.2E 11097 V 22000 --> 28.2E 10714 H 22000 | DVBViewer = OK | TVSource = OK

19.2E 11097 V 22000 <-- 28.2E 10714 H 22000 | DVBViewer = OK | TVSource = OK

 

19.2E 11097 V 22000 --> 28.2E 10876 V 22000 | DVBViewer = 1X, 2X | TVSource = 1X, 2=OK

19.2E 11097 V 22000 <-- 28.2E 10876 V 22000 | DVBViewer = OK | TVSource = OK

 

27500 H and V transponders

19.2E 11720 H 27500 --> 28.2E 11261 H 27500 | DVBViewer = OK | TVSource = OK

19.2E 11720 H 27500 <-- 28.2E 11261 H 27500 | DVBViewer = OK | TVSource = 1X, 2=OK

 

19.2E 11720 H 27500 --> 28.2E 11426 V 27500 | DVBViewer = OK | TVSource = OK

19.2E 11720 H 27500 <-- 28.2E 11426 V 27500 | DVBViewer = 1X, 2X | TVSource = 1X, 2=OK

 

19.2E 11778 V 27500 --> 28.2E 11261 H 27500 | DVBViewer = OK | TVSOurce = OK

19.2E 11778 V 27500 <-- 28.2E 11261 H 27500 | DVBViewer = 1X, 2X | TVSource = 1X, 2=OK

 

19.2E 11778 V 27500 --> 28.2E 11426 V 27500 | DVBViewer = OK | TVSource = OK

19.2E 11778 V 27500 <-- 28.2E 11426 V 27500 | DVBViewer = 1X, 2X | TVSource = 1X, 2=OK

 

change between 22000 on 19.2E and 27500 on 28.2E H and V transponders

19.2E 12515 H 22000 --> 28.2E 11261 H 27500 | DVBViewer = OK | TVSource = OK

19.2E 12515 H 22000 <-- 28.2E 11261 H 27500 | DVBViewer = OK | TVSource = 1X, 2=OK

 

19.2E 12515 H 22000 --> 28.2E 11426 V 27500 | DVBViewer = OK | TVSource =OK

19.2E 12515 H 22000 <-- 28.2E 11426 V 27500 | DVBViewer = OK | TVSource =1X, 2=OK

 

19.2E 11097 V 22000 --> 28.2E 11261 H 27500 | DVBViewer = OK | TVSource = OK

19.2E 11097 V 22000 <-- 28.2E 11261 H 27500 | DVBViewer = OK | TVSource = OK

 

19.2E 11097 V 22000 --> 28.2E 11426 V 27500 | DVBViewer = OK | TVSource = OK

19.2E 11097 V 22000 <-- 28.2E 11426 V 27500 | DVBViewer = OK | TVSource = OK

 

change between 27500 on 19.2E and 22000 on 28.2E H and V transponders

19.2E 11720 H 27500 --> 28.2E 10714 H 22000 | DVBViewer = OK | TVSource = OK

19.2E 11720 H 27500 <-- 28.2E 10714 H 22000 | DVBViewer = OK | TVSource = 1X, 2 = OK

 

19.2E 11720 H 27500 --> 28.2E 10876 V 22000 | DVBViewer = 1X, 2X | TVSource = 1X, 2 = OK

19.2E 11720 H 27500 <-- 28.2E 10876 V 22000 | DVBViewer = OK | TVSource = 1X, 2 = OK

 

19.2E 11778 V 27500 --> 28.2E 10714 H 2200 | DVBViewer = OK | TVSource = OK

19.2E 11778 V 27500 <-- 28.2E 10714 H 2200 | DVBViewer = 1X, 2X | TVSource = 1X, 2=OK

 

19.2E 11778 V 27500 --> 28.2E 10876 V 2200 | DVBViewer = 1X, 2X | TVSource 1X, 2=OK

19.2E 11778 V 27500 <-- 28.2E 10876 V 2200 | DVBViewer = 1X, 2X | TVSource 1X, 2=OK

 

 

I am using Moteck SG-1200A:

speed: 1.9/sec (at 13V); 2.5/sec (at 18V)

Power consumption: 50 mA (Standby)/ 200mA (Normal)/350mA (Max.)

Input Voltage 13/18 Vdc

Pitput Voltage: 13/18Vdc ( according to input)

 

I have tested this couple of times and the results stay the same.

 

Can anyone say anything about those results?

[lujo]

- TV-card: TBS 6922 with driver 1.0.1.3: http://www.tbsdtv.com/products/tbs6922-dvb-s2-tv-tuner-pcie-card.html

- Tv-card is installed on headless server, OS = Windows Home Server (based on Windows Server 2003)

- Mainbord chipset Gigabyte 740G (Ga-MA74GM-S2H)

- Processor: AMD Athlon II X2 240e

- Graphic card on the server is onboard and in the bios disabled.

 

 

Unicast Network device on the Computer:

 

- TV-card: Unicast Netword device

- Mainboard Asus, chipset G31

- Processor: Core 2 Quad Q6600

- ATI Radeon HD 5450

support SERVER.zip

support COMPUTER.zip

[lujo]

Example:

 

19.2E 12515 H 22000 --> 28.2E 10876 V 22000 | DVBViewer = 1X, 2X | TVSource = 1X, 2=OK

19.2E 12515 H 22000 <-- 28.2E 10876 V 22000 | DVBViewer = OK | TVSource = OK

 

With TVSource:

First time attempt: Switching between 19.2E 12515 H 22000 to 28.2E 10876 V 22000:

- first time attempt: dish begins with moving and comes to te correct position of 28.2E satellite

- but this first time I get channels which are on 19.2E satellite on 10876 V 22000 position and not on 28.2E satellite

 

Second time attempt: Switching between 19.2E 12515 H 22000 to 28.2E 10876 V 22000:

- dish is not moving (stays at correct 28.2E position, is moved already by the first attampt)

- scans correct channels on the 28.2E satellite 10876 V 22000

 

 

With DVBViewer when scanning between 19.2E 12515 H 22000 to 28.2E 10876 V 22000:

- Dish is not moving to 28.2E satellite, first time, second time. It does not matter how many times I try.

Edited August 4, 2012 by lujo

[QBox User]

I have a different TBS device but this also sometimes fails to move the dish on change of satellite. I have had some success by inserting a delay before the DiSEqC command is sent, and even repeating the command after a further delay. This ensures the motor has time to settle after switching on. Select Extended for DiSEqC option then Edit.

[lujo]

Can you tell me what delay do you use? 100ms or less?

[QBox User]

I can't check just now, but think it was 500ms. I found after some experiments that anything under 300ms was not reliable.

 

It depends on how long the motor needs to settle when power is applied after the LNB has been off. Subsequent tuning attempts probably don't need this if power is maintained.