Welcome to GOFASTMOTORSPORTS.com ... ... ... Green Flag - Green Flag - Go Go Go ... ... Brought to you by Ricks Satellite - Where the Big Dish Rules!

Ricks Satellite Wildfeed and Backhaul Forum
Register Latest Topics
 
 
 


Reply
  Author   Comment  
ddoubledee

Registered:
Posts: 8
Reply with quote  #1 
I have been trying forever to lock this transponder on AMC-1 @ 103*W C-Band...
4140V SR30000 FEC5/6 8PSK
...I'm not interested in the 4k UHD feeds... I'm only interested in the DW-TV subchannel (I really miss this channel being on old fashioned DVB-S)

Using...
- Technisat Skystar HD2 PCI
- Windows 10 64-bit
- Device Driver version 1.1.1.502 (only one I can get working)
- Using BDA driver in DVB Dream v3.3 (old mantis.dev driver from r00t won't work)

Notes...
- I can tune other S2 transponders on this satellite with high symbol-rates, like...
4120H SR30000 FEC5/6

Anyone have any ideas I can fiddle around with?
majortom

Avatar / Picture

Registered:
Posts: 5,126
Reply with quote  #2 
At what SNR are you able to lock the other one?
are you able to lock 4060 V 30000?
Tough to comment given we don't know any details of your antenna system nor where you are
located on the planet.
DVB-S2 8PSK FEC 5/6 requires minimum of 9.5 dB to lock.

103W is now called SES3 BTW.

__________________
Perfect 10 7.5' mesh Chapparal C/Ku Co-Rotor feed, Norsat 8115 CBAND, Norsat 4106A Ku Thomson Saginaw Actuator, Vbox positioner,
Home Brew Polarotor683 Servo circuit. Openbox S9, Prof7500, v4l-updatelee linux drivers installed.
ricardo's geo-orbit archive: https://web.archive.org/web/20071202191450/http://www.geo-orbit.org:80/sizepgs/tuningp2.html
ddoubledee

Registered:
Posts: 8
Reply with quote  #3 
4060 V doesn't lock.... So, you know, that could be it... I'm using a 10-foot dish but it's from the 1980s with dinged panels.... maybe my lock isn't so great, but I can't tell from dvbdream... it tells me some TPs are 98% quality.... O.o

Like I said, though... another transponder does lock.... like 4120H which is 30,000 S2 8PSK... but it could be stronger...?
ddoubledee

Registered:
Posts: 8
Reply with quote  #4 
Nope, not getting a lock on 4060 V 30000 either....


I'm located in Canada on the Canadian Shield... Using an old 10-foot Unimesh dish from the 1980s with some dinged panels... New LNBF, well a few years old, a cheapie from eBay... fixed H/V 13v/18v switching.... So you never know... could be having signal issues... I don't know what to believe from what DVBDream outputs... says 98% Quality on most transponders... but my old DVB-S receivers like a Pansat 2500a say 70%-85% on ION-East SD, for instance...
ddoubledee

Registered:
Posts: 8
Reply with quote  #5 
Yet another receiver... Viewsat Ultra says 50% quality on PBS-X SD feed... But the viewsat will work down to like 20%... pansat like 40%... I dunno, they are all different... O.o
jimmypop

Avatar / Picture

Registered:
Posts: 420
Reply with quote  #6 
you should get that channel with ease, I mean I get it in Central Mexico with a solid signal on a 10ft dish and based on that Satellite's footprint my beam is weaker than Ontario. You might wanna try something other than a tuner card and dvb dream, I mean I have no problems tuning it with my Openbox and X2 receivers
__________________
Scanning C Band 135º-78º on 10ft'er
& C Band 61º-40º on 7ft'er
jimmypop

Avatar / Picture

Registered:
Posts: 420
Reply with quote  #7 
Quote:
Originally Posted by ddoubledee

Like I said, though... another transponder does lock.... like 4120H which is 30,000 S2 8PSK... but it could be stronger...?


for me 4120H is weaker than 4140V, could it be your polarity? I dont like LNBFs btw, I prefer the feedhorns with polarotor and skew so I can finely tune, specially considering im in a weakish area for North American satellites

__________________
Scanning C Band 135º-78º on 10ft'er
& C Band 61º-40º on 7ft'er
ddoubledee

Registered:
Posts: 8
Reply with quote  #8 
Yeah, that's what I"m thinking too... I have like 30% margin on both of those old STB receivers... my PCI card says I have a >great< signal... maybe I need to upgrade to a newer pc tuner or get a DVB-S2 stb instead...
ddoubledee

Registered:
Posts: 8
Reply with quote  #9 
I had a feedhorn with a polarotor once upon a time... then it started spazzing out and moving all the time, so I changed to LNBFs
majortom

Avatar / Picture

Registered:
Posts: 5,126
Reply with quote  #10 
That's a common issue with polarotors that have sat unused for a long time. Most likely caused by a dirty feedback Pot. More than likely a tiny blast of electrical contact cleaner in the feedback pot would have resolved that.
Worst case you can buy a new servo motor from Rick for just a few bucks. He sells replacement servos and will ship to Canada.
http://www.gofastmotorsports.com/rickssatelliteservomotors.htm

Is it possible that you do not have the lnbf adjusted properly? Go to your True South Sat,
and rotate the Skew there for optimum H/V reception on that sat.

Try getting that card working with Crazyscan? You will get some reading in dB that way.
I think it may be at least partially supported, if not fully supported (assuming it is stv090x based)..
https://sourceforge.net/p/crazyscan/wiki/Info/
The author Crazycat is a member here, he would know for sure.


__________________
Perfect 10 7.5' mesh Chapparal C/Ku Co-Rotor feed, Norsat 8115 CBAND, Norsat 4106A Ku Thomson Saginaw Actuator, Vbox positioner,
Home Brew Polarotor683 Servo circuit. Openbox S9, Prof7500, v4l-updatelee linux drivers installed.
ricardo's geo-orbit archive: https://web.archive.org/web/20071202191450/http://www.geo-orbit.org:80/sizepgs/tuningp2.html
ddoubledee

Registered:
Posts: 8
Reply with quote  #11 

I don't actually have the old LNB anymore... It was very old, 45*K, I think... There was actually a slight improvement when I changed to the LNBF years ago... I will try peaking the dish all-around, it's been a few years since I've fiddled with it.

My card is STB0899 based, which says partially supported... but maybe not my particular package (mine uses a Mantis PCI bridge, whereas the supported STB0899s are USB devices)... When I launch crazyscan, it says RFScan not supported.

ddoubledee

Registered:
Posts: 8
Reply with quote  #12 
Well, I managed to peak the dish all around again...

I didn't get any improvement with the dish adjustments... but fiddling with the LNBF, I gained another 10% on all signals... but no change in my situation... I give up. I think it must be this old PCI card...
Previous Topic | Next Topic
Print
Reply

Quick Navigation:

Easily create a Forum Website with Website Toolbox.

Fellow Members, your posts are welcome here! Do not worry about posting everything perfect. Different receivers and LNB's will give you different Frequencies and Symbol Rates. Some set top boxes, PCI cards and USB receivers, Do Not Require all of the same information that others may need. It is not Required to post everything that others may need to tune in a feed. It is just most important to share the find. We can always adjust the Frequency and Symbol Rates and try the various Modulations and FEC's on our own receivers until we get a lock and then give a polite reply with what works for your receiver, as that information might help others as well. We all appreciate the efforts and energy of the Posters!

Thank You for Visiting GOFASTMOTORSPORTS.com - Keep Your Eyes on the Sky and the Track!