The Apartment Antenna (continued Saga)
Remember this antenna I was working on?
Well, I had no idea of how well it would perform or its
characteristics, well, now I do, here is a graph of
the SWR on it across the entire HF spectrum:
The SWR is high (sometimes EXCEEDINGLY high)
where I need it low, and low where I don't care.
It does this same form of pattern right up to
about 54 Mhz, then there is one last dip at around 60 Mhz,
from there up, it is high.
I have been using it with an antenna tuner, but, due to
the location on our deck, and the, sub-optimal
performance shown above, I'm not making a horrendous
number of contacts.
Add having to use low power and I am not overly impressed,
guess I need to change the design...
Oh well, onward and upward.
Update:
The connection between the VNA and the antenna
was jury-rigged in the image above, but, with a
proper SMA to PL259 adapter, the differences
aren't that great.
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Score!
Well, I won a scope!
I just don't win stuff, so, I am chuffed.
This was actually a couple of years ago, but hey,
better posted later than never, right? π
Wa Happened?
Well that was R*E*A*L fun...
NOT!
(fortunately, I had an archive) but it was a ton of work.
Beitian BN-880 GPs and Compass Module Experiments - 1
So this will be a quick post, links mostly.
I decided to get a Beitian BN-880 GPS/Compass module
for experiments I have in mind.
So, I hooked it up to an Arduino Uno.
Here is the wiring diagram:
Note, the wiring colors are meaningless, as each
manufacturer supplies cables with different colored
leads. As you can see here, red is not power, and
black is not ground.
The sketch I used to test the set-up came from the GPS library:
TinyGPS++
The sketch I demo in the video is the basic example.
The video:
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Vlog
If you want to see my projects in video format, visit my VLOG:
https://rumble.com/user/number6of1
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