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3.4 GHz Ham Radio test with WA5VJB Log Periodic Feed
Ham Radio DX Channel ^ | Aug 27, 2019 | Ham Radio DX Channel

Posted on 01/03/2021 1:04:26 PM PST by tbw2

I received a log periodic antenna designed by ham radio operator WA5VJB from Kent Electronics. They are rated from 2 to 11 GHz, so this model will cover several of the ham bands. These antennas are made on PCB's and are ideal for use in the amateur microwave bands as compromise dish feeds. In this video I do a test of such a feed versus my patch antenna on the 3.4 GHz band.

https://www.wa5vjb.com/products1.html

I mounted one in place of the original dipole feed on a 2.4 GHz (13cm) gridpack at the same focal point. Whilst gain will be down a bit on 3.4 GHz (9cm) results were surprisingly good, although smoke started to come off the PCB at a power level of 20W FM! In this video I have a contact with VK7ZBX whilst portable. Again this was a non line of sight contact.

FT8 Digital Record: Ham Radio on the 3.4 GHz band https://www.youtube.com/watch?v=P9KGf...

500km (310 miles) on the 2.4 GHz and 3.4 GHz Ham Radio bands! 📡 https://www.youtube.com/watch?v=L02P2...

(Excerpt) Read more at youtube.com ...


TOPICS: Hobbies
KEYWORDS: dsj03; electronics; hamradio; rf; technology
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1 posted on 01/03/2021 1:04:26 PM PST by tbw2
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To: Kevmo; buwaya; IndispensableDestiny; Paladin2; Rio; jz638; Pollard; Conan the Librarian; ...

3.4 GHz Ham Radio test with WA5VJB Log Periodic Feed
https://www.youtube.com/watch?v=mSUfKTdSwM4c


2 posted on 01/03/2021 1:05:01 PM PST by tbw2
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To: sauropod

Review.


3 posted on 01/03/2021 1:06:43 PM PST by sauropod (Cui bono? I will not comply.)
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To: tbw2

Is there a Ham Radio ping list? If so, please add me. If I’m already on it, thank you, and I’ll have to find my memory pills. I’m sitting for the Technician exam in two weeks. Could really use some advice on a 2 meter starter radio. Would really like to build it myself, but am willing to buy ready to go.


4 posted on 01/03/2021 1:24:41 PM PST by IYAS9YAS (There are two kinds of people: Those who can extrapolate from incomplete data.)
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To: tbw2

Cool!


5 posted on 01/03/2021 1:26:12 PM PST by The_Media_never_lie (I do not regret my decision to cut all ties with Fox News. )
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To: IYAS9YAS

I have a ping list focused on ham radio. I can add you to mine.


6 posted on 01/03/2021 1:33:16 PM PST by tbw2
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To: IYAS9YAS

Before I had my technician’s license I bought a Baofeng UV-5R on Amazon Prime Day for like $25 and learned what a repeater was and how to program it into the radio.

Then when I passed my Technician’s exam I upgraded to a Yaesu FT-2DR which also did digital.

A few months ago I bought 4 new Baofengs on Amazon for cheap backups and got all of them programmed the same.


7 posted on 01/03/2021 1:34:35 PM PST by srmanuel (It)
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To: tbw2

Great hobby, has been sidelined somewhat by the proliferation of cell phones and ubiquitous internet availability. Still a prime skill during emergencies


8 posted on 01/03/2021 1:37:21 PM PST by HangnJudge
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To: tbw2

I mounted one in place of the original dipole feed on a 2.4 GHz (13cm) gridpack at the same focal point.
+++++
That’s the right thing to do. But a Log Periodic is a relatively long antenna compared to a simple dipole. It seems like the correct placement of the LP would be critical if you want to get maximum gain.

An LP antenna is really just a stack of dipoles. I would expect the best feed placement to be at least close to a placement of a the LP where the 3.5 GHz main element is at least close to the optimum location of true 3.5 GHz dipole.

If the feed location is adjustable you might mess with that a bit.

Or maybe you did and I’m preaching to the choir.

Good luck with your project.


9 posted on 01/03/2021 1:47:30 PM PST by InterceptPoint (Ted, you finally endorsed.)
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To: tbw2

Would you mind adding me too?

Thanks and 73,

Howard, W1HBO


10 posted on 01/03/2021 1:51:28 PM PST by SoCalConservative
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To: tbw2
A huge number of people are taking exams for a ham radio license. There has been a massive increase in new amateur radio operators in the last couple of years.

Below is a link to those NEW operators just issued FCC licenses in the past month.

This list can be sorted by license grant date and sorted by state. There were over 20,000 new ham radio operators licensed in 2020. New Hams

11 posted on 01/03/2021 1:58:54 PM PST by Gnome1949
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To: Gnome1949

Link does not work. got to radioqth.net and customize list of new hams.


12 posted on 01/03/2021 2:00:07 PM PST by Gnome1949
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To: IYAS9YAS

I don’t use 2 meter so much anymore, but keep it simple. I have been using my Yaesu FT-2900 for a long time and it goes up to 75 watts. Nothing fancy, it weighs a ton and very heavy duty. 2 meter only though. The new one is a 2980, basically the same but up to 80w.

If you’re using it mobile, having a separated face plate is wonderful. But for your first radio, get something easy to operate. The 2980r is only around $150. You can get something fancier later and use the 2980 as a back up or at home, what have you. KEEP IT SIMPLE! Kenwood, Icom, Yaesu all make fine products, can’t go wrong.

Good luck on your test and your amateur radio journey!

73,

Howard, W1HBO


13 posted on 01/03/2021 2:00:40 PM PST by SoCalConservative
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To: IYAS9YAS; tbw2; Tilted Irish Kilt
Is there a Ham Radio ping list? If so, please add me. If I’m already on it, thank you, and I’ll have to find my memory pills. I’m sitting for the Technician exam in two weeks. Could really use some advice on a 2 meter starter radio. Would really like to build it myself, but am willing to buy ready to go.

Ditto. I would like to be on that list as well.

I’ve been considering the need to add a ham or shortwave radio to our prep supplies and would be interested in learning more, which means anything as I have ZERO experience with that kind of stuff.

14 posted on 01/03/2021 2:02:15 PM PST by metmom (...fixing our eyes on Jesus, the Author and Perfecter of our faith.....)
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To: tbw2

Please add me to your HAM ping list.
Thanks


15 posted on 01/03/2021 2:04:28 PM PST by TangoLimaSierra (Your tagline sucked, so it was deleted - Admin)
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To: tbw2

Add me too. Going for my technician in a couple weeks. Just got a handheld and figured out the laptop programming and its now setup for several local repeaters. Cant wait to transmit, but listening is fine for now.


16 posted on 01/03/2021 2:25:27 PM PST by backtobasics
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To: tbw2

Greatly appreciated! Thank you.


17 posted on 01/03/2021 2:30:24 PM PST by IYAS9YAS (There are two kinds of people: Those who can extrapolate from incomplete data.)
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To: tbw2

T post INFOBUMP!


18 posted on 01/03/2021 2:32:30 PM PST by PGalt
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To: tbw2

Could you add me as well? I’ve had my ticket for over ten years and hardly used it - I have a Baofeng here on my desk and would love to find some tips and tricks for it.
KB1RZF


19 posted on 01/03/2021 2:40:42 PM PST by ellipsis (a blessing in the New Year to all who read this! )
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To: tbw2

Please add me to your ping list as well. Thank you.


20 posted on 01/03/2021 2:52:24 PM PST by LastDayz (A blunt and brazen Texan. I will not be assimilated.)
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