Tranklid but Immobile HENTENA on 50MHz (3: Testing)

I assembled it in the parking lot of a nearby park on a nice weekend.

It’s 3.5m long, so if I put it laid on the ground while assembling it, it would get in the way of other cars and people. It’s called slim, so it should be slim to assemble and disassemble. That was the design concept,
　　　
I could assemble the antenna standing it up, but I actually wanted to attach the base of the antenna to the trunk lid base and then extend it upwards smoothly…

As you can see, I am not tall enough. I had to stand it on the ground, extend the pole and add the vertical element downwards, then set it on the base. If I was 2m tall I could have set it up perfectly in 5 minutes…what a shame!



I guess this won’t be too much of a nuisance?  I bring it into the car using 3D-2V + SMA connector.

Oops! Here’s the thing to be careful about in (1) earlier.  It needs to be at least 2.5mmR…

I looked for the other station on the 50MHz CW band to check the range, but there was no one there…

In situations like this, I guess FT8 is the way to go these days… You can pick up dozens of stations on a fixed frequency, so it’s basically my main channel.

I brought an antenna analyzer with me so it only took 10 minutes to adjust the matching.

I randomly fixed it 24.5cm from the bottom and measured the SWR at the ■ below. I also wanted to try FT8, so I raised it to 29.0cm and the SWR was the ■ below.

Assuming the usable range is SWR<2.0, the bandwidth should be around 400-500kHz. For today the feed point is fixed at 29cm.

I made QSOs with about 10 stations in the Kanto region on 50.313MHz, but I tried calling stations in Aichi Pref. that I could hear by +6dB, but they didn’t pick up… My ears seem good, so I’ll look forward to the next time.

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