Well,
Very much inspired by the fun back here, I figured it would be great to try and make a better single feed for the dish for both bands.
This seemed to be just the ticket.
Not this needs to be plumbing, not electronics!
I paid a visit to fellow ham and insane constructor Ian, G4EVK; who has some amazing model making equipment and a good plumbers blowtorch!
Here's some photos of the build:
I'm waiting for a "rocket" LNB that I hope will fit on the end of the waveguide (read 22mm pipe) using a compression fitting, I have also used the trick from here to check the 2.4GHz return loss - after a little bit of bending it's now looking spot on.
Yesterday I very nearly mowed the lawns, today we woke up to this:
Let it snow.....
** UPDATE **
I have used the lens from a "rocket" LNB on the front of the feed and removed the feedhorn from an Octagon LNB (with a hacksaw) and connected it all together with a 22mm compression pipe connector and some waterproofing with some silicone. I have also modified the LNB to take an external 25MHz signal (as above):
I've used the same trick I used back here to measure the return loss on 2.4 GHz and its around 20dB; I have also lashed up the receiver on the 10GHz downlink and that is working just fine.
Now, how on earth can I weather proof this?
Miss Maggie and Miss Pepper Cat seem to be economising by using the same bed? Bonkers.
Local conditions....
Very much inspired by the fun back here, I figured it would be great to try and make a better single feed for the dish for both bands.
This seemed to be just the ticket.
Not this needs to be plumbing, not electronics!
I paid a visit to fellow ham and insane constructor Ian, G4EVK; who has some amazing model making equipment and a good plumbers blowtorch!
Here's some photos of the build:
I'm waiting for a "rocket" LNB that I hope will fit on the end of the waveguide (read 22mm pipe) using a compression fitting, I have also used the trick from here to check the 2.4GHz return loss - after a little bit of bending it's now looking spot on.
Yesterday I very nearly mowed the lawns, today we woke up to this:
Let it snow.....
** UPDATE **
I have used the lens from a "rocket" LNB on the front of the feed and removed the feedhorn from an Octagon LNB (with a hacksaw) and connected it all together with a 22mm compression pipe connector and some waterproofing with some silicone. I have also modified the LNB to take an external 25MHz signal (as above):
I've used the same trick I used back here to measure the return loss on 2.4 GHz and its around 20dB; I have also lashed up the receiver on the 10GHz downlink and that is working just fine.
Now, how on earth can I weather proof this?
Miss Maggie and Miss Pepper Cat seem to be economising by using the same bed? Bonkers.
Local conditions....
