Home made uhf antenna

[BITT211]

had time on my hands , made this uhf antenna using a [truck mirror bracket] , did some small modifications , to copper antenna , radials was bent and secured to base with home made clamps . antenna mounted attic only . this thing picks up excellent. county has repeaters throughout. center antenna , copper , 5" long -
radials , stainless steel - 7" long . freq. range - 424-460 mhz

 

[dave3825]

I made one a while back when I was in an apartment. Now I have a house and want to try the tri band version of this.

 

[tjnevins]

I made one a while back when I was in an apartment. Now I have a house and want to try the tri band version of this.

View attachment 137435

I made this exact one ... the only mod I made was to add 4 radials vs 2, although it's not perfectly clear if it's 4 or 2 from the instructions. I've used it for a couple of years, it's located in my attic and have since purchased a couple off the shelfs (mobile mini discone D220R) and another multiband that fell way short. I don't think you'll be disappointed,

 

[dave3825]

I made this exact one ... the only mod I made was to add 4 radials vs 2, although it's not perfectly clear if it's 4 or 2 from the instructions.

Yeah, the illustration is not the best. I did do 4 radials. Going to make the tri band real soon..

 

[iMONITOR]

It's difficult to tell from the pictures, depending on the lens you were using, the antennas look pretty close to each other.

 

[PDXh0b0]

I made one a while back when I was in an apartment. Now I have a house and want to try the tri band version of this.

Now to find where I put my panel mounts

 

[PDXh0b0]

Now just have to wait on weather to get it on the roof

 

[dave3825]

Now just have to wait on weather to get it on the roof

Tomorrow looks doable. Lol

Antenna looks good. What's the blue piece? Something 3d printed?

 

[PDXh0b0]

Yeah older design

Quarter wave ground plane antenna mount and weather cover by cjastone

This is a basic antenna mount and cover for a quarter wave ground plane antenna based on M0UKD's design here: https://m0ukd.com/calculators/quarter-wave-ground-plane-antenna-calculator/ Should suit an antenna tuned to any frequency for which this antenna design is suitable. The lower section...

www.thingiverse.com

There are a few newer ones I'd like to print when I replace the extruder on my printer(or get a new printer, older printer parts getting hard to find)

1/4 wave ground plane antenna housing by bk75

Snap-fit housing for ground plane antenna with 45-deg sloping radials. Attach to “3/4 inch” PVC tubing (1.05 inch OD). Use silicone adhesive. Connector: flanged SMA with 0.1 inch holes. Radials: 3/32 inch brass rod, cut to length, bent, and soldered to SMA connector. Radiator: 3/32 inch brass...

www.thingiverse.com

 

[tjnevins]

1/4 wave ground plane looks great ... thanks for posting the other links, esp. the IOT antenna reviews. Good reads.

 

[PDXh0b0]

View attachment 137788

Tomorrow looks doable. Lol

Haha, I went up a couple weeks ago to put up a 1/4 w gp for sonde balloons, steep roof, cold tiles...swore it off till summer 😃.. but...I believe my 1410 needs a new cable or cleaned

 

[N9PVW]

I made one a while back when I was in an apartment. Now I have a house and want to try the tri band version of this.

View attachment 137435

I build
The Tri-Band 8 years ago and still using it. I can pick-up out to around 75 miles, it's in the top of my shack, which has metal siding.

 

[PDXh0b0]

I build
The Tri-Band 8 years ago and still using it. I can pick-up out to around 75 miles, it's in the top of my shack, which has metal siding.

Can't wait to get it mounted and try it out, had some partial sun, but the clouds were pushing thru , gutter bells have constantly water flow 🤷‍♂️