Trust
Specialist Contributor
- Joined
- Jul 18, 2004
- Messages
- 1,137
- Reaction score
- 1,621
- Points
- 113
- Age
- 78
- My Satellite Setup
- 1.8 m CM at SMR 1224 + Elev. with 7 lnb changer Ku (lin - circ) - Ka (lin - circ) C (lin - circ)
- My Location
- Nijmegen Netherlands
John , if you have enough tubes , you can do that , but ......
Cardiff did send me a raw AV-COMM barrel to machine it in the proper way , did that yesterday at my employers lathe .
This morning I tested it at a 1.2 m Echostar Offset dish pointed at 5 west TP 4115 .
With the AV barrel managed to get 10.7 dB .
My barrel 60 mm inside with 48 mm between the second steps ( D2 ), showed 10.1 dB
Put some 0.5 mm thin plates between step 1 and 2 to become a D2 of 47 mm , showed 10.4 dB , some increase !
Fitting the step plates with screws allow you to tune the barrel .
So I decided to make new steps for a D2 of 46 mm , no good idea , signal drops .
Than I machined my second tube to a inner size of 63 mm and made new step plates for a D2 of 48 mm , about the same dimentions as from the AV barrel .
The test will be made when I'm back from the dentist
Cardiff did send me a raw AV-COMM barrel to machine it in the proper way , did that yesterday at my employers lathe .
This morning I tested it at a 1.2 m Echostar Offset dish pointed at 5 west TP 4115 .
With the AV barrel managed to get 10.7 dB .
My barrel 60 mm inside with 48 mm between the second steps ( D2 ), showed 10.1 dB
Put some 0.5 mm thin plates between step 1 and 2 to become a D2 of 47 mm , showed 10.4 dB , some increase !
Fitting the step plates with screws allow you to tune the barrel .
So I decided to make new steps for a D2 of 46 mm , no good idea , signal drops .
Than I machined my second tube to a inner size of 63 mm and made new step plates for a D2 of 48 mm , about the same dimentions as from the AV barrel .
The test will be made when I'm back from the dentist