"Ed Fong" antenna or home-made equivalent?

[Coyote33]

I've seen a few people mention "Ed Fong" antennas.

It seems he's a professor in California, and uses the proceeds to help his classes.

Anyone have any experience with this one?

Ed's Antennas

email: edsantennas@gmail.com phone: 408-245-8210 mailing address: Ed Fong 1163 Quince Ave. Sunnyvale, CA 94087 April 4, 2023 We are fully stock with all out products. We ship the same day as...

edsantennas.weebly.com

DBJ-1 (ham) dual band base antenna (144-148 MHz and 440-450 MHz) Maximum power input 75 watts. - $50 (also available in 250 watt version for $70. Please email me if you are interested in this model)

That, or is this something that can be put together by yourself? If anyone has the plans/recipe to do this, I'm interested.

Thank you.

 

[ToddDubya]

I have a similar one, I think I bought it from N9TAX. He sells on eBay. This design is good to go and a lot of people build them themselves. I never did because by the time I buy the ladder line, connector, coax, and a ferrite bead it's cheaper just to buy one built. But don't let that deter you from building one. They're popular for clubs to build as a group.

 

[MetroWest]

I have a DBJ-220 and DBJ-1 bought a while ago from Ed Fong - they both are well made.
if you are interested in the theory here is a link to an Ed Fong video from FARA:

W1FY | Framingham Amateur Radio Association

The QST articles showing how to build your own are at the bottom of this page:

About

DBJ-1 $50 Published in - QST February 2003 Our most popular antenna is the DBJ-1 which is a VHF/UHF Dual Band Base Station Antenna. It is available in HAM (144-148 MHz and 440-450 MHz) or...

edsantennas.weebly.com

 

[JDL]

For $50.00 it's a good deal it would be hard to build for that money.

 

[Coyote33]

I wonder how this one might compare:



Amazon product ASIN B08F2C1J3ZView: https://www.amazon.com/HYS-400-470Mhz-Fibreglass-Connector-Transceiver/dp/B08F2C1J3Z/


Complete antenna, no assembly, other than to clamp to a post or something high up.

 

[hikerlt]

How does this one compare to the Ed Fong antenna. ?

pockrus j-pole antenna

I like that on his website he provides examples, info, and photos of mounting the antenna on a house roof.

 

[ToddDubya]

How does this one compare to the Ed Fong antenna. ?

pockrus j-pole antenna

I like that on his website he provides examples, info, and photos of mounting the antenna on a house roof.

That looks a lot like the one that Arrow makes. A buddy of mine has one and really likes it.

 

[qwert77]

I usually buy the DIAMOND X50NA for base station installs. Last forever since they are one sealed section. I prefer the N model over the SO-239. N connectors are just a way better connector. Unfortunately hams love PL-259 connectors so most radios come with them.

DIAMOND X50NA

144 / 440 MHz Rugged Base / Repeater Fiberglass Vertical Antenna - 66 Inches Tall - N Connector

www.hamradio.com

 

[Coyote33]

OK, silly question time.

If I want to locate a 2 wire antenna in a tree, how do I do that? Sure, I can get a fishing line and then paracord up in the tree to haul something up (the main part plus the coax trailing along below). But how do you deploy the 2 side wires horizontally from that, once the device is up there? Maybe I just need to make myself a harness and climb the tree.

 

[ToddDubya]

Depending on how heavy the center/coax is, you could just suspend the ends. If it's going to sag, you'll need to support the center as well.

I assume you're talking about a dipole.