120cm dish with C-Band performance - Now with HD!

[Cascade]

It definately feels a little sturdier, but it is hard to judge anything since even the slightest wind makes a dish of this size shake .

I did manage to break a u-bolt on it by overtightening and bending it. Luckily sg2100 u-bolt fits so I replaced it.

The irony

 

[Michael-Berlin]

Here is the link to german forum talking about this http://board.satbook.de/wbb/thread.php?goto=nextnewest&threadid=1049&

There is another picture of he offset ring in second post and I think he is saying that he gets 20% better signal than with the scalar ring for prime focus.

hey ... thx for linkin' my forum

btw ... take a look at this new Invacom feed:
http://board.satbook.de/wbb//thread.php?postid=14358

 

[PSB]

VERY NICE! Is it made from steel or Aluminum.

 

[Michael-Berlin]

VERY NICE! Is it made from steel or Aluminum.

Source: http://www.satellitesuperstore.com/lnbs.htm

The Invacom feed comes from Invacom with no cap or cover and so the spiders can get in and lay their nests.
The result is that they block the signal. We fit a yellow cap on the end. This is better than a flat cover
as flat covers are burnt through by the sun. Using a cap rather than a cover means that it is not at the
focal point and is much less likely to be burnt by the sun. This cap is included with all Invacom feedhorns
and is exclusive to the Satellite Superstore. The Invacom feedhorn has a 23mm neck and a C120 flange
It is made of aluminum and has scalar rings. It is designed for prime focus dishes.

 

[raydio]

edit: For those curious what model this LNBF is, it is "Astrotel PM-9/C-VH"

From what I can tell, the LNBF is pretty much standard issue, but it's the cone scalar that makes it special! I'll be curious if your TLN numbers are any better with the new LNBF.

 

[vj9999]

From what I can tell, the LNBF is pretty much standard issue, but it's the cone scalar that makes it special! I'll be curious if your TLN numbers are any better with the new LNBF.

I can get 60% on TLN without tweaking too much. I also get 60% on Outdoor Channel on G10R.

One thing I learned fast is that as opposed to flat scalar, cone scalar should be pushed as far back as possible.

I tired getting the Tube on G3C, but I get no signal. I see the signal on my BLSA so I know it's there, but it is not strong enough.

Rayydio. What receiver do you have? That might explain why might quality is lower? I have Fortec ultra.

 

[raydio]

VJ I have the Coolsat Pro and the Fortec Ultra both and notice that the quality is higher on the Coolsat on a given channel.

 

[vj9999]

VJ I have the Coolsat Pro and the Fortec Ultra both and notice that the quality is higher on the Coolsat on a given channel.

I just tried something different. I took teh cone scaler anf put in ASC421. Without tweaking at all (just approximately setting it the smae way as the other LNBF), I get between 65-75% quality on TLN and around 50-60% on Pax mux. I don't get any breakups on Pax mux when watching on Twinhan (I have it slaved to Fortec).

My current setup is Fortec Ultra as main receiver. Twinhan and an analog receivers slaved to it. Broadlogic BL2030 (with BLSA) slaved to Twinhan (used only as a spectrum analayzer).

 

[CharredPC]

That's really interesting! Makes me wonder if the ASC421 isn't a better lnb, but the offset scalar a better set of rings. I'm ordering the EITS offset lnb with offset scalar ring, so I should be able to do the same thing (have a new 421 sitting here).

Only bad thing is I don't have a decent analog receiver Don't get me wrong, the one I have is nice, but as it's designed for a motor/actuator setup it just gives me errors when trying to switch satellites. Then again, I could just scan on the single satellite for analog, slaving it through the Twinhan (for positioning), right?

 

[WyrTwister]

A quick FYI:

My SG2100 packed up on me this evening while scanning for T5 on C-Band, all the movement on this C-Band project finally took its toll and it's stuck at 0.
I'm not blaming the positioner, it's served me well, I just don't think motors are designed for this type of abuse especially over the last month or two with all the movement and weight of the 120cm dish.

For now my participation is on hold unless I decide to mount the dish in a fixed position or find another positioner.

http://www.satelliteguys.us/showthread.php?t=74660

I have a Microyal motor that is suspose to go to 1.2 M & a Stab HH100 for up to 1 M , both on KU .

My impression is the Stab is probably the better motor .

Be on the watch at EBay for a Stab HH120 ( 1.2 M ) motor .

Wyr

 

[raydio]

I will try vj's ASC421 "modification" this weekend to see if makes a difference on my setup. Charred, glad to hear you straighted out your Patriot/LNBF order!

 

[iammike]

Then again, I could just scan on the single satellite for analog, slaving it through the Twinhan (for positioning), right?

That's what I do with my Toshiba receiver.

 

[WyrTwister]

I installed my Patriot 1.2 meter dish today. It went together without much "blue" language and I did it myself without help. It is pointed at Anik F1 right now and am receiving all available channels with 70-79% quality! Channels that were not available with the P* are now booming in with the monster dish. Currently using it with the ASC421 as the offset LNB wont arrive until Wednesday. Will be ordering an HH120 as I really need to motorize this baby.

That mount looks very heavy ? Yhey could sava some weight & strain on the motor by making it out of Aluminum ?

Wyr

 

[WyrTwister]

Here's a link to a page I found where a fellow is doing that. Give it a look.

http://ourworld.compuserve.com/homepages/pjmarsh/cband.htm

I got lost when he came to the screw adjustment ??????????????


Wyr

 

[Virgil Gomes]

Has anyone tried this on a 76cm dish?

 

[CharredPC]

Has anyone tried this on a 76cm dish?

I have. Though with a standard scalar, not offset.

I got some analog, about 8 signals. I didn't really tweak lnb position, if I did I think I would have gotten some decent analog picture. As it was, it was quite snowy. I got no DVB at all, though in some spots I got some very high signals, but no quality. A blind scan might have made all the difference; I'm pretty limited in using the Twinhan DVB card. I might just not have been trying the proper frequencies. If you get the chance, though, I say Try It!

 

[Virgil Gomes]

I'm awaiting an ASC421.Once I get it I will try it out and let you know how I make out.

You guys are doing a great job digging this stuff up.


Thank you!!!

 

[timmy1376]

I have. Though with a standard scalar, not offset.

I got some analog, about 8 signals. I didn't really tweak lnb position, if I did I think I would have gotten some decent analog picture. As it was, it was quite snowy. I got no DVB at all, though in some spots I got some very high signals, but no quality. A blind scan might have made all the difference; I'm pretty limited in using the Twinhan DVB card. I might just not have been trying the proper frequencies. If you get the chance, though, I say Try It!

You say you got nothing on DVB side, did you try using the THScan utility? I know it takes awhile, but it would be interesting to see if the pseudo blind scan coughed up anything.....

 

[CharredPC]

You say you got nothing on DVB side, did you try using the THScan utility? I know it takes awhile, but it would be interesting to see if the pseudo blind scan coughed up anything.....

The THScan utility is pretty much a joke. I let it run for over 2 days and it didn't even get over 10xxx in frequency. It's just too cripplingly slow to use, unfortunately. Someday I'll find a nice cheap old STB with blind scan, and use that to search. Until then....

 

[mdmm]

C-Band satellite

Hi,
I am in Toronto.I have 35 and 18 inches 2 dishes and i have linear and circular universal/satndard LNBF.Is 120cm dish equal in size to 35 inches??
Kindly let me know if i can use this stuff to get (what) c-Band satellite.Can I get 55.5W ?
Do I need to buy a new Receiver(??) and LNB. ??.Currently I have Fortecstar Ultra.
Please help.??