Another C/KU Band LNB

[Scott Greczkowski]

A few days ago I was talking about turning my 1.2 meter dish into a Microbud project when I got some money to buy one of the new C/KU LNB's.

Well the good folks from SatelliteAV sent me an email letting me know that a new C/KU band LNB was on its way to me. (Thanks guys!)

It arrived today and this model is different than the BSC621-2 which we have seen reviewed here. This one is a GKC-D001

I looks a lot like the BSC621-2 however there is not built in switch like the BSC has, instead it is packed with a 4 way diesqc switch.

The Specs on it are listed on a sticker which are as follows:

GKC-D001
C-Band & KU Band LNBF

C-Band
I/P Freq: 3.4 - 4.2GHz
O/P Freq: 950-1750MHz
LO Freq: 5.15GHz
N.F. 17 Degree K Gain: 65dB

KU-Badn (Thats the way Band is spelled on the sticker)
I/P Freq: 11.7 - 12.7 GHz
O/P Freq: 950 - 1950MHz
L.O. Freq: 10.75GHz
N.F. 0.7db (Typ.) Gain: 58dB

It also came with a scaller ring (for prime focus dish use)
a bag of screws
a 2 inch by 1 inch piece of Plexi Glass? Which has a piece of Electrical tape stuck to the top of it.

And no instructions.

There are no markings on the LNB to help with Skew, so this will indeed be a true microbud experiment.

I do hope to get to it this weekend (depending on the heat)

Any advice you may have would be appreciated.

 

[Mr Tony]

no pictures??

I think the plexi glass is a dialetic (sp?) plate for circular C-Band satellites that are over the Atlantic

oh, also the BSC 621 has a built in switch but you don't need it. You can hook a switch to the outside of it

 

[Scott Greczkowski]

No Picture yet, I just got the box open and posted this while eating dinner.

 

[Mr Tony]

I s'pose

 

[Scott Greczkowski]

OK here are the photos.

I am not sure if the cover on the scaler ring is supposed to be taken off when in use or left on.

 

[charper1]

In case I missed it, can this be used for offset or primefocus and what would the smallest dish size be for this?

 

[Scott Greczkowski]

According to the SatelliteAV website...
http://www.satelliteav.com/products/LNBs/Combined_C__KU-Band_LNBF.htm

Geosatpro has produced in cooperation with one of the World's leading LNB manufacturer an LNBF that simultaneously receives both C-band and Ku-band linear signals. Expand your viewing options with the ability to view programming from C-band and Ku-band satellites on one dish! Hundreds of additional digital signals are available on these two bands. Hobbyist report success with smaller 1.2M dishes, but we recommend a 2.4M minimum dish size.

Includes standard scaler for 3 or 4 point prime focus mounting

 

[Eastcoast]

Hi Scott
The scalar ring in your photo looks alot like the one Pete showed me a picture of a couple of threads back about the BSC621-2 that a member made.
I noticed the KU noise figure was .7 to the .3 of the BSC621, anyway I'm interested in seeing how it works out as I was also thinking about the micorbud experiment.

Dave

 

[Scott Greczkowski]

Yes I got this scaller from a member, I would give his name but not sure if he has any left.

 

[Eastcoast]

Perhaps there is some info that could be shared as to how to construct one, I've tried odder things.lol!!

Dave

 

[PSB]

Perhaps there is some info that could be shared as to how to construct one, I've tried odder things.lol!!

Dave

A lot of reading here........

http://www.satelliteguys.us/showthread.php?t=34911

http://www.satelliteguys.us/showthread.php?t=32726

http://www.satelliteguys.us/showthread.php?t=39119

http://www.satelliteguys.us/showthread.php?t=33501


The last one was a classic thread. The $5 C-Band dish!

 

[Eastcoast]

Thanks Pete
have to have a look at those, and perhaps this weekend i'll make a beer can lnb instead of a beer can chicken.LOL!!

dave

 

[Scott Greczkowski]

This is my first time using a scaler ring. At the moment I have it screwed in so that the top of the LNB comes even with the first ridge of the scaler ring (as shown in the photos above)

Is that the correct placement?

Also can I leave the cover on the scaler ring and LNB or it is better to take it off?

 

[Mr Tony]

Scott
You may have to mess with pushing the LNMB in and out from the rings. 1st ring on my LNB is 42 and I have it pushed in to 38 for optimum signal

 

[Scott Greczkowski]

not sure that those numbers mean, the LNB and scaler ring do not have any numbers on them at all.

 

[Mr Tony]

oh. The ASC421 LNB I have has numbers on the LNB with the lines. All I'm saying is you might have to move the LNB in and out for optimum signal

 

[Scott Greczkowski]

All I'm saying is you might have to move the LNB in and out for optimum signal

That's what she said : : :devil: :neener

 

[Mr Tony]

haha very funny

You have to adjust the LNB closer or farther away for optimum signal...there, better?

 

[charper1]

Guys,

Can you please tell me what the differences, or the advantages are, between this new C/Ku versus already using a CorotorII with 15d C / .5db Ku high stability LNBs ?

 

[Scott Greczkowski]

Correct me if I am wrong but a Corotor does not do Disecq. And also a FTA box can not switch polaraties in the Corotor.