Antenna Review | MFJ Ham Stick
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- Опубліковано 16 вер 2021
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#hamradio #pota #parksontheair
yet again you're the only guy in a sea of videos to actually
"Parking Garages On The Air".. ahh.. the good ol' days... :D Interesting that the excess wire was loading from inside the whip.
Bob’s your uncle! I was about to say, when the stinger is so low that it penetrates the loading coil, it acts as a ferrite core, which increases inductance and that explains why it’s lowering in frequency as it’s shortened. I learned the hard way, with a 40m hamstick, that the tip of those stingers inside the coil get EXTREMELY hot. Had a scar from that for a while lol.
I have the same antenna, wound up cutting a few inches off the whip as well. I mounted my antenna on the bumper of my truck, that makes for a very good ground so the whole truck is a counterpoise. works great for me. great video.
Always happy to see affordable equipment that works! Thanks 👍
In the manual of this antennas is written: Don't put the whip into the coil, cut it.
Aloha Mike, I have been using the MFJ 347 Dual Dipole version for 10 meters which on sale at Gigaparts for $23.90, and works very well. Yes, I had to trim both of my wires for 10 meters but made regular contacts into South America, NZ, PI, Australia, Japan and Borneo. Great video!
I've used those at school and they work great. SWR was low in the phone band of 20 and 40 meters. Great video as usual!
Great video, I regularly use ham sticks from the seafront here in the UK and they work very well.
That ham stick worked great and I can't believe how cheap they are too! Awesome review Mike!
Kool video. Very interesting about trimming the whip. Well done.
So glad you made this video! Missed it some how. I'm going to try this, along with my WRC, on a POTA activation.
I worked Bob Heil, K9EID, in IL from CA while mobile with an MFJ 75 meter hamstick and cheap Alinco HF rig about 8 years ago. He played our QSO on Ham Nation. He was demonstrating how you don't need a whole lot to get on the air. Great video! 73
Love it when you bring out the power tools
I had to do the EXACT same thing with my MFJ 20M hamstick- cut off about 8 inches so it didn't couple with the inductive lower portion. I also made a WRC-style coil with 3/8x24 threads which goes at the bottom of the antenna and converts it to a 40M antenna.
Yup, I had to do the same sort of trimming when trying to get the high end of 40 on one of these. If the stinger sticks down too far into where the coil is, it starts interacting strangely, almost like you are playing with a variable inductor. In my case it was about 4 inches removed in total before it would behave.
I have doubles in the 10, 20, 40 & 75m bands and I love them. They work great in the dipole mount and I’ve found when used as a ground mount vertical, for example how you showed with your Wolf River Coil radial as the spike, to lower that SWR get the feed point / base of the antenna just about 4”-6” off the ground. It looked like you had to too high. I’ve also found making sure the counter poise radials extending out to opposing sides and NOT near the coax helps as well. Very easy to drop that SWR down.
I have a set of MFJ hamsticks. I tried the 20 meter one and contacted a station in Texas from the Atlanta area. I tuned slightly down in frequency and had a station in British Columbia, so those things do work well.
Great Video Mike! I bought the MFJ hamsticks and I also couldn't get it to tune out of 13Mhz!! I thought it was defective so I just put it away. I'm now going to have to pull it out of the closet and try it again. Thanks for the instructive video!
GREAT vid. I love that you're really going through the gamut of things people can use/do to get on the air with POTA. You know how they have the octopus thing? Seeing your ground-rod clamp vertical thing made me wonder if something could be rigged up as a fan vertical with my 20 and 40m hamsticks. Does that make sense? I might try to rig something up. My HOA would never see 'em.