Making a 300/450ohm Roll-up Slim Jim Antenna

Polecat · Post by **Polecat** » Wed May 20, 2020 11:42 pm

Well done Santiago. Happy to hear you got the SWR down. Looks pukker. Looking forward to the next update now....think you'll be saying it's £5 well spent.

Santiago · Post by **Santiago** » Sun May 24, 2020 3:12 pm

today I carried out the first antenna test. the board is pushing out 8 watts. I could only manage to get 4 reports as everybody is out and about but the furthest away report was 2.7miles away (calculated using good maps distance lasso tool) got a video of the report nice and clear,
the spot I used was only 100m up, the local area has an average height of 70m. just hung antenna from tree.

Santiago · Post by **Santiago** » Sun May 24, 2020 3:13 pm

need more height for sure

Bton-FM · Post by **Bton-FM** » Sun May 24, 2020 6:11 pm

https://www.freemaptools.com/elevation-finder.htm

I find this quite useful might be handy for you to find elevation.

Santiago · Post by **Santiago** » Sun May 24, 2020 9:03 pm

my elevation was 101m

its finding those spots not totally in the forest which is tricky in my area, there are spot much higher but potentially out of my range, will try more spots in the week

Santiago · Post by **Santiago** » Sun May 31, 2020 7:43 am

got an rds from turkey now, but cant find a VGA to usb cable online god dam

Krakatoa · Post by **Krakatoa** » Sun May 31, 2020 9:43 am

VGA to USB? Are you sure? It's more likely to be RS232 (also known as serial) to USB

teckniqs · Post by **teckniqs** » Sun May 31, 2020 12:57 pm

Yeah he indeed means the Serial port and not the monitor port.

Santiago · Post by **Santiago** » Sun May 31, 2020 2:01 pm

yea that thing your talking about lol serial to usb

mpx · Post by **mpx** » Sun Feb 07, 2021 11:32 am

How was the performance of this in the end?

mpx · Post by **mpx** » Mon Feb 08, 2021 10:30 am

Was it 6 turns 40mm wide you ended up with?
How well did it work from the hill?
I'm thinking of making one of these instead of buying a J pole

Making a 300/450ohm Roll-up Slim Jim Antenna

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Re: Making a 300/450ohm Roll-up Slim Jim Antenna

Re: Making a 300/450ohm Roll-up Slim Jim Antenna

Re: Making a 300/450ohm Roll-up Slim Jim Antenna

Re: Making a 300/450ohm Roll-up Slim Jim Antenna

Re: Making a 300/450ohm Roll-up Slim Jim Antenna

Re: Making a 300/450ohm Roll-up Slim Jim Antenna

Re: Making a 300/450ohm Roll-up Slim Jim Antenna

Re: Making a 300/450ohm Roll-up Slim Jim Antenna