I took the C2 PLL apart and do not see any valid reason for the heatsink. You are applauded if you can find any real decrease in board temperature with this heatsink installed in this manner.
The heatsink is installed around 12 mm from the lnb board. So you have a dead airspace and this airspace acts like an insulator between the board and the heatsink. The heatsink also has a piece of material attached to it that would further insulate it from cooling the board.
One side of the lnb board appears to be almost solid copper, and it is firmly attached to the bottom of the lnb cavity using 7 screws. The lnb board is coupled to the cavity, and the heat from the bottom of the board will radiate into the lnb feedhorn or into the lnb wave guide.
Your Geosat C2 lnb version seems to be a better choice because it is lighter weight when compared to the Titanium C2 lnb and it is totally sealed. The rubber seal on the Titanium lnb which helps insulate the heatsink from the rest of the lnb body will eventually fail and allow water or moisture to be in contact with the lnb board. The Geosat C2 has a sealed housing and I would expect it to last longer than a lnb housing sealed with rubber.
Both of these C2 lnbs are good. They function and seem to have sufficient isolation between the two ports so you can operate multiple receivers at the same time without having receiver to receiver interference. The same cannot be said for all of the dual lnbs I have tested.
Titanium C2 Pictures:
This picture shows the bottom of the lnb cavity
View attachment 12454
The copper side of the lnb board is firmly attached to the bottom of this cavity which allows for the transfer of heat from the board to the lnb feedhorn or waveguide
This picture shows the back or bottom side of the lnb board.
View attachment 12452
This side is Firmly attached to the bottom of the lnb cavity.
The small amount of heat generated by this board can be transferred to the feedhorn or waveguide area of the lnb.
This picture shows the top or front side of the lnb board
View attachment 12453
Looks like there are not many parts installed here that produce a lot of heat. There is also a dead air space of about 12 mm between the board and the giant heatsink.
This picture shows the back of the C2 heatsink
View attachment 12455
I have no idea as to why a pad would be attached to the back of a heatsink. It makes no sense at all to me.
here is a better view of the heatsink pad.
View attachment 12456
The heatsink is installed around 12 mm from the lnb board. So you have a dead airspace and this airspace acts like an insulator between the board and the heatsink. The heatsink also has a piece of material attached to it that would further insulate it from cooling the board.
One side of the lnb board appears to be almost solid copper, and it is firmly attached to the bottom of the lnb cavity using 7 screws. The lnb board is coupled to the cavity, and the heat from the bottom of the board will radiate into the lnb feedhorn or into the lnb wave guide.
Your Geosat C2 lnb version seems to be a better choice because it is lighter weight when compared to the Titanium C2 lnb and it is totally sealed. The rubber seal on the Titanium lnb which helps insulate the heatsink from the rest of the lnb body will eventually fail and allow water or moisture to be in contact with the lnb board. The Geosat C2 has a sealed housing and I would expect it to last longer than a lnb housing sealed with rubber.
Both of these C2 lnbs are good. They function and seem to have sufficient isolation between the two ports so you can operate multiple receivers at the same time without having receiver to receiver interference. The same cannot be said for all of the dual lnbs I have tested.
Titanium C2 Pictures:
This picture shows the bottom of the lnb cavity
View attachment 12454
The copper side of the lnb board is firmly attached to the bottom of this cavity which allows for the transfer of heat from the board to the lnb feedhorn or waveguide
This picture shows the back or bottom side of the lnb board.
View attachment 12452
This side is Firmly attached to the bottom of the lnb cavity.
The small amount of heat generated by this board can be transferred to the feedhorn or waveguide area of the lnb.
This picture shows the top or front side of the lnb board
View attachment 12453
Looks like there are not many parts installed here that produce a lot of heat. There is also a dead air space of about 12 mm between the board and the giant heatsink.
This picture shows the back of the C2 heatsink
View attachment 12455
I have no idea as to why a pad would be attached to the back of a heatsink. It makes no sense at all to me.
here is a better view of the heatsink pad.
View attachment 12456