Heath Robinson (Mark 2) approach to get those few more dBs

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g8lce
Posts: 74
Joined: Sun Dec 06, 2015 10:26 am

Heath Robinson (Mark 2) approach to get those few more dBs

Post by g8lce » Tue Sep 03, 2019 1:45 pm

Since the first time I posted about his I have had time to redo the extra mesh around the outside of the cheap 1.1mtr dish and take a few screen shots.
I have included the beacon RX in both cases. The TX was 250ks at 10497750kHz
First set without mesh extension.
Capture without extended.JPG
Capture without extended.JPG (101.44 KiB) Viewed 173 times
Capture without extended RX.JPG
Capture without extended RX.JPG (229.19 KiB) Viewed 173 times
Capture without extended beacon.JPG
Capture without extended beacon.JPG (237.58 KiB) Viewed 173 times
Now with the mesh extention extending most of the dish to 1.5Mtr although this will make most difference at 2.4GHz.
Mesh extension.JPG
Mesh extension.JPG (245.98 KiB) Viewed 173 times
And now the difference it made. Even the RX was better!
Capture extended dish sdr.JPG
Capture extended dish sdr.JPG (163.01 KiB) Viewed 173 times
To see the two other screen shots I would have to post another subject but RX of the beacon was upto MER 6.9dB and my own signal was 2.3dB D1 which for my 15 - 20 watts was nice.

Martin G8LCE

g8lce
Posts: 74
Joined: Sun Dec 06, 2015 10:26 am

Re: Heath Robinson (Mark 2) approach to get those few more dBs

Post by g8lce » Tue Sep 03, 2019 1:48 pm

Here are the other screen shots of the Extended dish.
Mesh extension.JPG
Mesh extension.JPG (245.98 KiB) Viewed 169 times
Capture extended dish.JPG
Capture extended dish.JPG (245.48 KiB) Viewed 169 times
Capture extended dish sdr.JPG
Capture extended dish sdr.JPG (163.01 KiB) Viewed 169 times
Capture extended dish beacon.JPG
Capture extended dish beacon.JPG (239.89 KiB) Viewed 169 times
Lets see if anyone else has tried this....


Martin G8LCE

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