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Reviews Categories | Antennas: HF: Yagi, Quad, Rotary dipole, LPDA | Mosley Classic 33 Help

Reviews Summary for Mosley Classic 33
Mosley Classic 33 Reviews: 33 Average rating: 5.0/5 MSRP: $620
Description: Heavy Duty 3 Element Tri-bander 1 Kw. Yagi
Product is in production.
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W1LDD Rating: 5/5 Aug 23, 2009 14:10 Send this review to a friend
Battleship  Time owned: 0 to 3 months
I bought the CL33 from a local ham(Thanks Jerry W1JFT). The antenna was on his tower since 1995.The antenna is in great shape due to it`s design. This is a heavy antenna with very thick wall elements and S/S hardware. Performance is excellent due to the wide element spacing. If you have a chance to buy one new or used, buy it!
N4UE Rating: 5/5 Aug 17, 2009 16:54 Send this review to a friend
WOW!!  Time owned: more than 12 months
Before I wrote this 'review', I called up Mosley TA-33 in 'reviews'. There sure were a lot of variations of this beam!
(the original instructions state "TA-33"), no Jr or WARC.

I bought this beam from a chap back in Ky, who, because of his subdivision, only put up the Ref and De. And those, he painted flat black (along with his tower) to appease the neighbors! ha Been there, done that, LOST the T-Shirt.....

Anyway, the Dir was new. Fast forward 10+ years. This antenna has been lying on top of a bunch of tower sections, so at least it wasn't in the dirt (and bloody FIRE ANTS!!).
So when I got ready to put it up, I completely disassembled and SOSed the entire antenna, one element at a time. Disassembling the traps, I found that the plastic coil forms had cracked and the coils were about 3/16" longer than new. I could have ordered replacements, but some careful work with a plastic mallet and my favorite professional super glue, they were back in shape. EVERY connection was carefully cleaned and 'anti-ox' was used at every joint. In addition, extra self drilling screws were added on each joint. After reassembly, the antenna was coated with Krylon 'clear' to keep out the Florida 'sunshine'.. ha ha

I had asked for 'advise' on this very site about using a coax balun and / or 'un-grounding' 1/2 of the De.
I recieved MANY replies... 1/2 telling me I MUST use the ground strap, 1/2 saying do NOT use the ground strap, etc. I now have a coax balun at the feed point.

The way I built the final version is this...
At the feed point of the De, I included a 'jumper' (no-oxed) that will allow me to ground and un-ground the 1/2 of the driven element. It's tied up, so it can't short, etc.
I WAS going to put a relay there, so I could get an instant A/B comparison, but I ran out of wire!
At present, I would have to climb to the 90' level to connect the 'ground'. That's OK, because it's within easy reach above the rotor...

How's it work? (the bottom line).....
For comparison I have:
A. a 5 band 'Fan" dipole (20M thru 10M), looking North at 50'. This antenna is close to the house. This antenna is homebrew, but has been a great performer for many years, it is fed with new RG-6 Quad cable.
B, the TA-33 which is at 90+ feet in the back yard aprox 70' from the house. It is fed with new 5/8" CATV hardline. I make my own adapters.

Turning on my Icom 761, and with both antennas pointing North, I can tune in K1MAN, on 14.275. Using a high quality coax switch, I switch from the Fan to the Mosley. When K1MAN is coming in weak but Q5, with an S-Meter reading of S-0 (I know all about S Meters and their 'relative' readings. However, my Elecraft XG2 gives an exact S-9 reading on the 50 uV setting. My 756 PRO is identical.)
Switching from the fan to the TA-33 provides the same benefit as engaging the preamp. Several S-Units.
I demoed this to my gf this weekend and she was astounded at the difference.
Yea, the TA-33 is higher, etc, but it just flat works EXCELLENT!!!

AI4HO Rating: 5/5 Jul 13, 2009 20:10 Send this review to a friend
An Oldie and a great one!  Time owned: more than 12 months
I've had my CL-33 over a year, its been up on my tower right at a year. With my 756 ProIII, and my AL-811H, its a combination that can't be beat. I got this antenna from a SK estate, the classic 33, a Ham M rotator and controler, at a very, very reasonable price. The Mosley had been lying on the ground since shortly after my friends passing. I got it in mid May, so I guess it had been on the ground for about 6 months. Brought it home, cleaned it up, found the 20 meter trap was broken, so a quick call to Mosley, and about 3 weeks and somewhere in the neighborhood of $70-80 later I had the new trap. Not much to say about that part of it as the trap went on with little trouble. At this point I might just add, this antenna is every bit of 35-40 years old, yet once the new trap was on, and I had a tower/antenna party, that old Mosley was as if it were new. My friends and I did take the time to make sure that every thing was right and tight.

Took the extra time to make any adjustments to the traps, got the lowest SWR possible on 10/15/20 meters. One nice thing about this antenna, is that it will tune up on 17/12 meters with the ATU in my ProIII. I must say, I seldom run any power when using this antenna. I've found that usually I can run barefoot and work em if I hear em! Today, the 13th of July 2009 was the first time in at least 6 months that I had to use any "power", on 20 meters.

About the only other thing I wish this antenna had, or could add would be the 40 meter add on kit. Unfortunately, this model Mosley does not support this feature. Not that it matters mind you, but it would be nice to be able to have that option. If/when I replace this antenna, I would definitely purchase another Mosley, maybe get one that I can put the 40 meter kit onto it. Like it says on top, this is an oldie, but its a great one! Hope to hear you on the bands!

73 de Mark
KA5ROW Rating: 5/5 Dec 8, 2008 00:20 Send this review to a friend
Impressed  Time owned: 3 to 6 months
Traded Hy-Gain Th-5 for a Mosley CL-33 and it is great. I completely reworked the antenna and I was impressed by the heavy construction. And the way the traps were designed. I liked the idea of pre drilled holes for the element assembly. No having to measure the length of the elements. One set of holes for CW and the other for phone. I wish they would advertise more in QST as they did years ago. Now there was nothing wrong with the Hy-Gain. But the Mosley was easier to assemble
WA0IIH Rating: 5/5 Nov 1, 2008 18:15 Send this review to a friend
A Timeless Classic!!!  Time owned: 0 to 3 months
Having been a fan of mosley products for 40+ years when it was time for my first beam antenna there was no other option what would be going up on my tower. The classic 33 has been around since the early 60s, and is built like a battleship and functions like a true performer. It was very easy to put together and nothing but the best components were supplied. This antenna is a real work horse and the reports I get confirm the quality that went in to this antenna. It was well worth the time waiting for it to be built, all mosley antennas are made to order, mine took about 1 1/2 months and was hand delivered by gary jr, the owners son. I live in st. louis, so the mosley factory is is about 40 min away. I give this antenna and mosley electronics a 150% rating!!!!! Great people and a great company to work with. My antenna was up and running on october 16, 2008, my wifes birthday. Tnx for a super product!! 73s, Shawn Daniels, WA0IIH
NE4EB Rating: 5/5 Oct 21, 2008 15:44 Send this review to a friend
Impressed  Time owned: 0 to 3 months
My prior experience with multiband yagi's includes Telrex TB5EM, Cushcraft A3 and HyGain TH7DXS.

My brand new CL-33-M was put into service on October 18, 2008. It sets at 40 ft. on a Rohn 25G tower with non-conductive guy cable.

My experience with Mosley Electronics has been top notch from start to finish. I had been triband shopping for several months before making the antenna decision.

A call to the Mosley factory one afternoon put me in touch with the President of the company. He spoke to me for a solid 30-minutes patiently answering all of my questions.

My order took over a month to deliver, but that was made clear from the very start as Mosley has been busy with military orders.

The antenna comes in two boxes. You start seeing the quality before you even open them up.

All the parts are heavy duty aluminum and stainless.

I received the antenna on a Friday, with my tower crew scheduled to arrive the following morning. I was VERY STRESSED at the thought of working into the nigh time hours trying to figure out how to assemble and tune this antenna. My fears were calmed about 30 minutes into the project as all of the design philosophy, color coding ad pre-drilled holes started making perfect sense. You don't even need a tape measure to assemble this antenna! Everything is already done for you.

I cut mine for CW.

My 2:1 SWR bandwidth is as follows:

28.000 - 28.500
21.000 - 21.288
14.000 - 14.180

The 20-meter curve is a bit less than spec, but I attribute this to it only being at 40 ft. or maybe some tress. I dunno. I have been making a lot of QSO's up into the .200 to .300 portion of 20 meters where the SWR is over 2:1, and have been getting booming reports from all over the country and Europe. On CW, it acts as a flame thrower too.

The quality build of this antenna is truly impressive. I'll post a one year update next Fall.

73 John
K4DTC Rating: 5/5 May 17, 2007 17:18 Send this review to a friend
Great Antenna  Time owned: 6 to 12 months
I had a CL33 about 25 years ago that I bought used. I liked it so much that, when I recently got back into ham radio, I bought another one. Both were used, but they are rugged and last forever. They are just a great antenna. They will take any kind of wind and ice, and it always does a great job. If you find one that is in good shape, don't hesitate to buy it. The only down side is that they will not work on the WARC bands. 73!
KD5ZEF Rating: 5/5 Apr 27, 2007 09:40 Send this review to a friend
Fantastic  Time owned: 3 to 6 months
I bought mine used from a ham who relocated to a restricted neighborhood for an unbelievable price, along with the HAM-M rotor. It's almmost as old as I am! After a good cleaning I assembled everything. Assembly was a piece of cake and the construction is top notch.

It's elevation is at about 38ft and it works very well. It's an antenna I can point to the station and work 'em. I don't have long wait times in a pileup when working phone dx, either.
REMOVE_LBB6W Rating: 5/5 Jan 22, 2007 20:24 Send this review to a friend
WOW! Great antenna  Time owned: more than 12 months
I bought this antenna at a yard sale for $100. I had a choice of KLM, Hy-Gain, and several other brands. I have no way of knowing how old the antenna is, but when I called Mosley and described the feedpoint connector (Type N) the guy said "We haven't used that type of connector for 30 years."
The connector was so badly corroded that I had to buy a feed assembly. I also replaced 2 traps and all the plastic trap covers and end caps. I guess I put about $300 into the antenna, but WOW-- I am impressed!
The first weekend the antenna was up in the air, at about 40 feet, I worked all states in the CA QSO Party. Subsequent DX contests proved the performance stateside was not a fluke. A "Clean Sweep" in the 2006 ARRL SS was like shooting fish in a barrel. Only 100 watts did the job.
When Mosley designed this antenna, they designed it to last a lifetime (or maybe more than one lifetime!).
K2VI Rating: 5/5 Jan 20, 2007 15:20 Send this review to a friend
the last antenna you will ever buy  Time owned: more than 12 months
A fellow ham 18 miles from my qth has a mosley classic and i had a force 12 c4,we were both up at around 45-50 feet,also we were both at around 25 feet above sea level.So the only real difference was the antennas and what a difference it was.mike would alway get 1 to 2 s units over me,it was very rare for me to get the better signal report.Sometimes we were even but mostly he buried me.Another big issue is the front to back on 20 meters is fantastic on the classic.The best part of this wonderful design is it WILL be the last antenna you will buy.They literally last forever.The story is i took the c4 down 2 years ago and the mosely has been up ever since breaking pile-ups.Very simple to put together(color coded elements)and full bandwidth on 10-20.
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