10G Bullseye LNB Modification and Repair
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- Опубліковано 23 лип 2023
- Here is some information on how to get a Bullseye LNB apart, how to modify it to use an external frequency reference, and how to fix it if you wreck it doing that modification. :-)
See also my 10 GHz Notes page:
www.n1bug.com/10ghz/ - Наука та технологія
Very helpful information. Just found your channel, and I will be back for some more videos.
I'm glad you found it helpful and thanks for letting me know. I always hope some part of what I cover will be of use to someone.
Great job. I didn't have any issues hearing you on the voice overs. The audio is a little low on all of it, but no big deal. I really enjoyed you going through this to the extent that you have. Those 0402 and 0603 parts can be tricky. I haven't been brave enough to attempt fooling with 0201 parts. I like the larger smds as most probably do. Thanks again for doing such a thorough job. 73's.
I should have tried to measure the size of those parts. They are a LOT smaller than the 0805 parts I used in the beacon project. I suspect the smaller ones are 0402. I've had to adjust the audio a bit low on all of my videos, otherwise voice peaks clip and distort. I guess my speaking is too dynamic. I tried forcing myself to speak with consistent loudness. Didn't work. Those voiceovers really sound muffled or compressed to me. I will try a different microphone soon. I used a different camera this time for the video segments. Audio on it was not as good as on the camera I had been using, but the camera part is much easier to work with. I have as much to learn about making videos as I do 10 GHz!
@@n1bug Again no big deal on the audio. I was able to clearly understand you so I wouldn't worry to much about it. Sometimes things like the room that the videos are filmed in can even be a factor on some people's videos. Excellent content none the less.
If the TCXO is to become a throw away, heat the metal top with a blob of solder and it should pop off without collateral damage.
I tried that with one of them but my 70 watt soldering station was not able to get the job done. I tried using a big tip, flux, etc. but it just didn't heat the solder under the pads enough.
Also in use in Europe for QO-100 receive. Great little things.
I wish I was in the footprint of QO-100. Would be interesting to try that.
For future reference and to use proper terminology in future videos, these devices are not LNBs. LNBs are a portion of the feedhorn assembly. It is the electrical component that attaches to a feed horn waveguide. A LNBF (F indicates Low Noise Block amplifier with an intergrated Feedhorn). I enjoy your experimentation, as I have been designing, manufacturing and distributing in the satellite industry for many years and recently got back into amateur radio. 73 AI6US
Your point is well taken. Unfortunately this is a confusing situation. If I refer to them as LNBFs then I am using different terminology than the manufacturers and vendors, who label and sell them as LNBs. That would tend to create confusion for my viewers. I should have mentioned that LNB is technically incorrect despite common usage.
Apparently the colloquial terminology is changing, now that they are integrated.
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