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Re: Making a 300/450ohm Roll-up Slim Jim Antenna
Posted: Wed May 20, 2020 11:42 pm
by Polecat
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.
Re: Making a 300/450ohm Roll-up Slim Jim Antenna
Posted: Sun May 24, 2020 3:12 pm
by Santiago
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.
Re: Making a 300/450ohm Roll-up Slim Jim Antenna
Posted: Sun May 24, 2020 3:13 pm
by Santiago
need more height for sure
Re: Making a 300/450ohm Roll-up Slim Jim Antenna
Posted: Sun May 24, 2020 6:11 pm
by Bton-FM
https://www.freemaptools.com/elevation-finder.htm
I find this quite useful might be handy for you to find elevation.
Re: Making a 300/450ohm Roll-up Slim Jim Antenna
Posted: Sun May 24, 2020 9:03 pm
by Santiago
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
Re: Making a 300/450ohm Roll-up Slim Jim Antenna
Posted: Sun May 31, 2020 7:43 am
by Santiago
got an rds from turkey now, but cant find a VGA to usb cable online god dam
Re: Making a 300/450ohm Roll-up Slim Jim Antenna
Posted: Sun May 31, 2020 9:43 am
by Krakatoa
VGA to USB? Are you sure? It's more likely to be RS232 (also known as serial) to USB
Re: Making a 300/450ohm Roll-up Slim Jim Antenna
Posted: Sun May 31, 2020 12:57 pm
by teckniqs
Yeah he indeed means the Serial port and not the monitor port.
Re: Making a 300/450ohm Roll-up Slim Jim Antenna
Posted: Sun May 31, 2020 2:01 pm
by Santiago
yea that thing your talking about lol serial to usb
Re: Making a 300/450ohm Roll-up Slim Jim Antenna
Posted: Sun Feb 07, 2021 11:32 am
by mpx
How was the performance of this in the end?
Re: Making a 300/450ohm Roll-up Slim Jim Antenna
Posted: Mon Feb 08, 2021 10:30 am
by mpx
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