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Type: Posts; User: brandon lind

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  1. Simply put.... A repeater is a transmitter and...

    Simply put....

    A repeater is a transmitter and receiver combination that repeats what is on one frequency and puts it on another frequency without anyone there to operate it. There is nobody at...
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    Use them as IF crystals in a low power mixing...

    Use them as IF crystals in a low power mixing stage followed by a filter.
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    awesome idea, theres a guy selling plastic...

    awesome idea, theres a guy selling plastic barrels 20 miles from me. Ill try that this summer!!!!!
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    A little more attachment storage and ability to...

    A little more attachment storage and ability to share photos above 800x600

    A prepper (or WSHTF) section to help the baofengers sort out their type-acceptance ignorance without having to...
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    Update: That worked. If the path from the feed...

    Update: That worked. If the path from the feed point down the coax and down the tower are nearly equal, the signals on each should have nearly the same phase at any given distance down the tower....
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    Tower balun

    I rearranged my room (with the computer cables and speaker wires along the wall with the tower (a foot away). Now, when I key up, there is absolute chaos in the room. Computer goes haywire, i come...
  7. Thread: Wind mill

    by brandon lind
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    just apply the brakes with a trusty zip tie and...

    just apply the brakes with a trusty zip tie and get the antenna ground plane above the blades. When you get tired of radio (lol, thats a joke) you can cut the zip tie and go back to watching it spin!
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    I do not think you will need to worry about that...

    I do not think you will need to worry about that for 70cm/GMRS as antenna bandwidth in MHz gets better the higher up in frequency you go. Ive seen many antennas that could easily cover 70cm and GMRS...
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    Im getting off topic with the original post here,...

    Im getting off topic with the original post here, but with respect to the sounds that propagate through this clay, I thought it worth sharing what got me interested in listening deep down. There were...
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    Make sure to thank W2AEW by hitting his subscribe...

    Make sure to thank W2AEW by hitting his subscribe button! Every video he makes is educational gold!
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    Check out: ...

    Check out:

    https://www.youtube.com/watch?v=i29pI7okLe4
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    Assuming a 50ohm load that remains constant, a...

    Assuming a 50ohm load that remains constant, a change in voltage across that load results in a change in current through it, therefore, that results in a change in RMS power in watts. On an...
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    Good points. Terrain, it didn't even cross my...

    Good points. Terrain, it didn't even cross my Minnesotan mind. Although its now moot, the track wear I'd be less concerned with. I wasn't suggesting repeatedly hauling taconite or anything heavy on...
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    trying not to steal a topic here

    The recent posts on railroad tracks had me thinking of an old idea. The purpose of this post is NOT to get political, but to get some insight on what I though was a really good idea.

    I thought...
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    Thats neat! I have no experience with matlab...

    Thats neat! I have no experience with matlab (yet). Hopefully this winter when things slow down ill get into it. When I do, I will likely be very interested in taking a look at those files.

    73!...
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    Are you doing the fourier transform yourself and...

    Are you doing the fourier transform yourself and loading it into an arbitrary waveform generator or is Matlab doing all that for you? With the beer can last time, I expected, at least, a liquor still...
  17. Any hams in Mass. willing to don a mask and go...

    Any hams in Mass. willing to don a mask and go help these firefighters??? Blast a TDR pulse down some cables and take a few SWR measurements and give some useful advice? If I wasn't so far away, I'd...
  18. R2D2, a quick look at his profile suggests he is...

    R2D2, a quick look at his profile suggests he is in Massachusetts, USA. And being that state is one of the hardest hit by this virus (therefore assuming money is tight) and this is a public service...
  19. you should toss this idea on a physics forum for...

    you should toss this idea on a physics forum for a more detailed response.
  20. Electron beams dont travel far outside a vacuum...

    Electron beams dont travel far outside a vacuum due to collisions with air molecules and ionizing air with lasers at any distance is a pulsed affair. The energy you put in will be the most anyone has...
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    quick suggestion... skip ordering an swr meter....

    quick suggestion... skip ordering an swr meter. Go straight for a nanoVNA-F or similar antenna analyzer. They run about the same price (for some unknown reason lol) and it will serve as an SWR meter...
  22. Thread: Hi

    by brandon lind
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    The first time I took my test (arrogant and...

    The first time I took my test (arrogant and unstudied), I failed miserably. The 12 year old next to me passed (that = serious motivation). I thought kerchunking a distant repeater and tuning a...
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    A quarter wave end fed with the same length...

    A quarter wave end fed with the same length counterpoise sounds to me like the traditional half-wave dipole. I cannot imagine such a setup requiring anything other than a 1:1 balun on the intended...
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    I forget if it was 3m or scotch that made it but...

    I forget if it was 3m or scotch that made it but theres also a velcro-like product with sticky backing that is the same on both sides and made of little plastic mushroom-like heads that interlock....
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    epic discovery soldering to aluminum

    I'm sure countless antenna builders have already discovered this but I figired it worth posting.

    Soldering aluminum has normally been a royal pain for me, succeeding only about 20% of the times...
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