Ka-Band Satellites

Lazarus

Lazarus

Tout Rond Bon Oeuf
Staff member
Messages
25,318
My Satellite Setup
80cm Motorised.
Several small Dishes.
Much else.
My Location
North York Moors
Hint: Same User Name as on eBay .....
 
fereshte

fereshte

Member
Messages
33
Location
Bulgaria
My Satellite Setup
2,30m prime focus dish with 3 LNBs - C ( Linear plus Circular ) and KU ( Linear ) ; 2,05m prime focus dish - KU circular and in future hopefully - ka band - 103E - 50W ; Octagon SF4008 UHD ; Edision Primo IP ; Inverto Flange white series ; Invacom quad; 36" motors; Especta and Moteck satellite positioners.
My Location
Bulgaria
Thanks, at this time this is the situation. I really appreciate your efforts of help and guiding me.
 
Channel Hopper

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
26,783
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK South
Then I will look for a 20-22 LNB for 16E and 7E, saorsat lnb is circular, for example with what lnb to test 19.2E ka band and I didn't find a footprint map of 12W WGS DR1.
You are still putting polarity above band, the 9E design will work for the other satellites mentioned (Llew I think has a thread somewhere on his findings ).

The WGS satellites are also circular downlink so you have an advantage with the Saorsat LNB probe and feed type. The original specification of the platform was for 10 X 1000km spotbeams at the upper frequencies so if you know somebody within 500kms with reception then you should have a chance of getting it. All Ka footprints are adjustable by the operator though so what might be receivable now could change next week.
 
D

dishdx

Member
Messages
96
My Satellite Setup
Showbox Vitamin, Octagon SX88
Dishes: Offset motorised 120 cm 30W-70E IBU Twin, Channel Master 180 76.5E-30W manual rotate , Cahors BigBisat 8 x Alps 1W,5E,9E,13E,19E,23.5E,28.2E,39E. Planty of equipments for FM and AM DX.
My Location
Central Bohemia
Hi! Its new thing for me too. Can i really use Soarsat LNB on other satellites? Or do i need them somehow modify?
 
Llew

Llew

cerca trova...
Staff member
Messages
14,666
My Satellite Setup
Triple Dragon, Dreambox 8000, Echostar AD3000ip, TBS6522,6925,6983 PCie cards.
Gibertini 1.25m motorised dish driven by the AD3000, with either Inverto BU Quad or Norsat / XMW Ka LNBs . SMW 1.05m + 3 other dishes. Speccy: Promax HD Ranger+
My Location
The Flatlands of East Anglia
Hi! Its new thing for me too. Can i really use Soarsat LNB on other satellites? Or do i need them somehow modify?
Modifying the Saorsat Band B LNB to work on an adjacent Band is not a trivial matter.

I have experimentally modified the LNB to work on Band A, but the work involved does not magically change the LNB to a Band A LNB with a specification the same as one made for that Band, as there will be some signal loss (front-end, filters).

Advisory note:-You could end up with a non-working LNB in any Band if you aren't sure what you are doing.

An Inverto Ka LNB Band B To Band A Mod
 
John

John

Enthusiast.
Messages
2,082
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
Modifying the Saorsat Band B LNB to work on an adjacent Band is not a trivial matter.

I have experimentally modified the LNB to work on Band A, but the work involved does not magically change the LNB to a Band A LNB with a specification the same as one made for that Band, as there will be some signal loss (front-end, filters).

Advisory note:-You could end up with a non-working LNB in any Band if you aren't sure what you are doing.

An Inverto Ka LNB Band B To Band A Mod

Further to Llews advice as well - broadly speaking, it must be realised also that successful Ka band reception- wether using modded equipment or standard commercial lnb's etc, is a step up in difficulty to Ku or Cband reception and the fact that there are generally four different Ka bands, A-B-C-& D that enthusiasts dabble with where only some of the bands contain video broadcast channels of interest and the rest could be data. It's an interesting band otherwise.
 
John

John

Enthusiast.
Messages
2,082
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
** @ Scopus, 19 East Astra Ka, can you check this encrypted one out for me please - - 18.543 V. Might be a boxing feed ??.
 
John

John

Enthusiast.
Messages
2,082
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
** @ Scopus, 19 East Astra Ka, can you check this encrypted one out for me please - - 18.543 V. Might be a boxing feed ??.[/QUOTE


Dropped at 6.22pm Chris, but might crop up again later ?.
 
John

John

Enthusiast.
Messages
2,082
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
** Hellas Sat 3 @ 39° East.
Using a Vertically polorised lnb at the moment but suspect these signals should be RHC.
I'm seeing these two low level signals at the moment off a 1.2 Gibby offset. Anybody with a bigger reflector or a RHC lnb to take a look please.
..........................................................................................................................................................................................................................................................................................................
Hellas Sat 3 - 39° East Ka. - .. reduced...jpg
 
S

s-band

Specialist Contributor
Messages
796
My Satellite Setup
1.5m IRTE PF, Octagon OSLO external Ref., TBS6983,
Various L, S, C, X & Ka bits. 1.2m S/X/Ku/Ka Prodelin on Az-El
My Location
SE UK
Channel Hopper

Channel Hopper

Suffering fools, so you don't have to.
Staff member
Messages
26,783
My Satellite Setup
A little less analogue, and a lot more crap.
My Location
UK South
36 east was / is supposed to have Ka band on it.
 
John

John

Enthusiast.
Messages
2,082
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
@John I can't say which polarisation but here's a bit more detail from last March
Satellites Community - 39.0°E Hellas Sat 3



Thanks Graham, i saw that cluster of four or so when the satellite first came on air doing initial tests but can't remember seeing the two different ones above. I'm also seeing 18.717 again at low level this morning (8am UK).
 
John

John

Enthusiast.
Messages
2,082
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
** Hellas Sat 3 @ 39° East.
Using a Vertically polorised lnb at the moment but suspect these signals should be RHC.
I'm seeing these two low level signals at the moment off a 1.2 Gibby offset. Anybody with a bigger reflector or a RHC lnb to take a look please.
..........................................................................................................................................................................................................................................................................................................
View attachment 122742



** Correction re: Satellite & position: Frequencies are correct but the satellite is Athena-Fidus @ 37.8° East :-doh:-doh
Both 18.997 & 19240 correctly identified by Feedsat-DXer previously on 'satellitescommunity.de'
 
dreamsat1

dreamsat1

Member
Messages
95
My Satellite Setup
2,20m Kathrein, 3,7m Andrew, KU,KA,C,C-Ext. LNBs
My Location
germany
Here it is with 2,20m two clearly separated satellite positions. Cirkular is not possible at the moment because there is too much snow in the garden.

regards
 

Attachments

John

John

Enthusiast.
Messages
2,082
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
Turksat Ka - 42° E.
Four frequencies present - two lockable with me. Not 100% sure of polarity as yet - lockable ones might be RHC.

...........................................................................................................................................................................................................................................................................................................

123441123442
 
Last edited:
S

s-band

Specialist Contributor
Messages
796
My Satellite Setup
1.5m IRTE PF, Octagon OSLO external Ref., TBS6983,
Various L, S, C, X & Ka bits. 1.2m S/X/Ku/Ka Prodelin on Az-El
My Location
SE UK
Turksat Ka - 42° E.
Four frequencies present - two lockable with me. Not 100% sure of polarity as yet - lockable ones might be RHC.
All RHCP, too close to house/trees and Gilat droops by 18.7 so can't get the weak pair.

123443
 
John

John

Enthusiast.
Messages
2,082
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
Cheers Graham - iv'e only got vertical pol running at the moment on the Norsat PLL, the other lower ones at 18.669 & 18702 are not LHC by any chance ?. I'll put my Hughes Ka RHC lnb on the lnb changer tomorrow weather permitting.
 
John

John

Enthusiast.
Messages
2,082
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
... There is also a low one at 18608 and also what looks like the beacon at 18598
 
S

s-band

Specialist Contributor
Messages
796
My Satellite Setup
1.5m IRTE PF, Octagon OSLO external Ref., TBS6983,
Various L, S, C, X & Ka bits. 1.2m S/X/Ku/Ka Prodelin on Az-El
My Location
SE UK
The beacon is on 18598.501 RHCP and the other furry one is about 3.5-4MHz wide. All are RHCP. The Gilat is about -3dB by 18.5.

123444
 
John

John

Enthusiast.
Messages
2,082
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
.... Couldn't wait until tomorrow to put the Circular Hughes lnb up - I thought it was set up for RHC but after looking at it i think it seems to be for LHC. The received signals are now higher with me to what seems to be LHC. Need some more input to clarify polarity.
 
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