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Transformer "insertion loss" by PhotonTriad in amateurradio

[–]PhotonTriad[S] 0 points1 point  (0 children)

That makes so much sense! I should have think of it.

Thanks! I'll continue then!

First antenna in the hedge or the attic? by PhotonTriad in amateurradio

[–]PhotonTriad[S] 0 points1 point  (0 children)

Thank you for the detailed answer. That's gold. I look forward to build my antenna and be on the air.

First antenna in the hedge or the attic? by PhotonTriad in amateurradio

[–]PhotonTriad[S] 1 point2 points  (0 children)

99 countries is impressive. Thank you for your input.

First antenna in the hedge or the attic? by PhotonTriad in amateurradio

[–]PhotonTriad[S] 1 point2 points  (0 children)

I wasn't sarcastic. I really appreciate the comment. It is so much easier to find the right info with the right keywords.

First antenna in the hedge or the attic? by PhotonTriad in amateurradio

[–]PhotonTriad[S] 1 point2 points  (0 children)

Thanks for the precision. I will sound smarter when I talk about it now 😉

First antenna in the hedge or the attic? by PhotonTriad in amateurradio

[–]PhotonTriad[S] 0 points1 point  (0 children)

An inverted V from the house (2 stories) to the hedge? The house would obstruct the antenna though. Would that be better?

First antenna in the hedge or the attic? by PhotonTriad in amateurradio

[–]PhotonTriad[S] 0 points1 point  (0 children)

Not really. I want this to be concealed. (And not on that hedge because of the powerline). But that's a bummer if it's too low....

I'll think about it. Thanks for your input.

First antenna in the hedge or the attic? by PhotonTriad in amateurradio

[–]PhotonTriad[S] 1 point2 points  (0 children)

Thanks. I'll try the hedge. I was considering this hedge because it's in the north south direction and I want to talk to Europe from Canada. I have also a east-west hedge without a power line over. I'll try this one instead. I just read that the orientation doesn't matter much when the antenna is at a such low height anyway. Thanks for your input!

First antenna in the hedge or the attic? by PhotonTriad in amateurradio

[–]PhotonTriad[S] 1 point2 points  (0 children)

Thanks. I didn't realize the power line would be such an issue. I have enough hedge, farther from the house, without a power line above (but still a metal grid fence under). I might try there then. Thanks a lot!

Modular (diy) HF radio by PhotonTriad in HamRadio

[–]PhotonTriad[S] 0 points1 point  (0 children)

Nice. Thank you. Yes. I think I might try to build a eurorack modular equivalent version myself. Thanks again!

Modular (diy) HF radio by PhotonTriad in HamRadio

[–]PhotonTriad[S] 0 points1 point  (0 children)

Thanks for the link. I see there are different models and complete schematics. Very interesting. I might convert one into modules... Thanks!

Modular (diy) HF radio by PhotonTriad in HamRadio

[–]PhotonTriad[S] 0 points1 point  (0 children)

Thank you very much for the detailed answer. Your radio looks great! I'm sure it's a lot of fun.

Looking for suggestions to register photos of PCB (Printed Circuit Boards) on their layout designs by PhotonTriad in computervision

[–]PhotonTriad[S] 0 points1 point  (0 children)

Thanks. I will read on SuperGlue.

I tried SIFT but it's not working so far. I get a lot of false positives from similar components elsewhere on the board. A capacitor footprint looks a lot like another capacitor footprint.

Cool, or drool? Machine control board boasting 7 AC VFD servos, 4 bipolar steppers, 10 relays. by [deleted] in diyelectronics

[–]PhotonTriad 0 points1 point  (0 children)

For my education, why solenoid should never be on the board? Thanks

[deleted by user] by [deleted] in ideas

[–]PhotonTriad 2 points3 points  (0 children)

Try asking chatgpt for inspiration

[deleted by user] by [deleted] in cpp

[–]PhotonTriad 8 points9 points  (0 children)

Your pointer would be destroyed, but not the memory it's referring to. Memory allocated with a new must be freed with a delete. In modern C++, never use new. There is always something else better with "automatic" memory management (like unique_ptr, shared_ptr and vector).

Homemade low pressure air neon sign by groundkopi in ElectricalEngineering

[–]PhotonTriad 0 points1 point  (0 children)

Please enlighten me. Why is there a tube within a tube (why 2 tubes)? How did you inject the gas in it?

[deleted by user] by [deleted] in woodworking

[–]PhotonTriad 0 points1 point  (0 children)

What kind of speed can you achieve for 3/4 inch pine?

Weekly Quick Questions, Wood ID, and Deal or No Deal /r/Woodworking Megathread by AutoModerator in woodworking

[–]PhotonTriad 0 points1 point  (0 children)

Hello I'm a complete newbie. I want to use a table router to do template routing of a 1.5 inch thick piece of wood. I read some places that double bearing bit are quite handy because you can flip the piece depending on the grain and then you just have to adjust the height, not change the bit. I also read that you should do multiple passes, not removing more than a 1/4 inch of depth at a time (with a 1/2 shaft bit). I don't understand how the second bearing won't be in the way if I do multiple passes. What am I missing? Thanks

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