Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

   Home   Help Search  
Pages: Prev 1 [2] 3 4 5 6 Next   Go Down
  Print  
Author Topic: Mosley Mini-33-WARC vs. Cushcraft MA5B - Any opinions from the experienced?  (Read 11489 times)
VA3WXM
Member

Posts: 277




Ignore
« Reply #15 on: March 19, 2013, 10:14:56 AM »

What do you think of the Yaesu 450 rotor?  I am looking at one for the MA5B I have.

73 John AF5CC

I used a G-450A with my MA5B for almost 10 years and had zero problems.
Logged
AJ0Z
Member

Posts: 41




Ignore
« Reply #16 on: March 19, 2013, 04:30:42 PM »

I have had zero problems with my Yaesu G-450A rotor using the mast adaptor in two years of use works well and turns at a reasonable rate. i would buy it again.

Andy
Logged
KF7CG
Member

Posts: 833




Ignore
« Reply #17 on: March 20, 2013, 09:48:02 AM »

No experience with the "baby" Mosley, but I have had and used the same full size TA-33 for 40 years. No problems, only minor maintenance when changing QTHs. So I figure the little guy will work well, too, and for a long time.

KF7CG
Logged
KA7NIQ
Member

Posts: 255


WWW

Ignore
« Reply #18 on: March 20, 2013, 10:15:15 AM »

No experience with the "baby" Mosley, but I have had and used the same full size TA-33 for 40 years. No problems, only minor maintenance when changing QTHs. So I figure the little guy will work well, too, and for a long time.

KF7CG
BIG difference between a full sized Mosley TA 33 and the Mosley Mini 33 WARC.
The TA 33 is a good antenna, but the Mini 33 was not one of Mosley's better moments.
Yes, because it is a Mosley, it will last a long long time. That is unfortunate, because it's poor performance will survive long enough to effect Ham after Ham.
The Cush Craft MA 5B is a better antenna, and a Hex Beam even better yet.

Logged
KD2CJJ
Member

Posts: 369




Ignore
« Reply #19 on: March 20, 2013, 05:55:20 PM »

Not one person has given me a technical reason why the cushcraft is better than the Mosley mini other than its better.
Logged

73

Mike
KD2CJJ
KA7NIQ
Member

Posts: 255


WWW

Ignore
« Reply #20 on: March 20, 2013, 06:14:42 PM »

Not one person has given me a technical reason why the cushcraft is better than the Mosley mini other than its better.
Good Lord Mike, don't you read and compare ?
The MA5B has almost perfect EHam reviews, the Mosley does not, The MA5B has a 7.3ft boom, the Mosley has a 6 ft boom.
The Cush Craft has a superior loading scheme for the elements, and is a newer antenna.
This mean it has benefited from Computer Design, vs the primitive, old school Mosley.

Look at all the videos on YouTube about the MA5B, then try to find any about the Mosley Mini 33 ?

Even Steve Hunt, the designer of the K4KIO and NA4RR Hexbeams once owned the MA5B, and said it was a decent antenna.

I am beginning to think that if Jesus Christ appeared in person, at your door, you would want to see the holes in his hands, from being nailed to the Cross ?

What more proof do you need ?

Longer Boom, Superior Element Loading Scheme, Computer Designed, Better EHam Reviews, and the Blessing of G3TXQ

Sounds like your next antenna should be a MA5B vs The Mosley Mini 33 Warc  Wink









Logged
KD2CJJ
Member

Posts: 369




Ignore
« Reply #21 on: March 20, 2013, 06:57:51 PM »

Everything I have read about each antenna has just praised what they had.  The Mosley antenna is old school but proven.  Personally the matching network and accompanied traps coupled with shorter elements should provide far more loss and less gain.  The longer boom may prove better f/b but it should be minmal.  So I guess I am try to better understand if my understanding of the science is correct than why is the antenna better?  Maybe better advertising?  If I am wrong about my understanding of the science then correct me with fact not conjecture or just what other people say.
Logged

73

Mike
KD2CJJ
KA7NIQ
Member

Posts: 255


WWW

Ignore
« Reply #22 on: March 20, 2013, 07:14:09 PM »

Everything I have read about each antenna has just praised what they had.  The Mosley antenna is old school but proven.  Personally the matching network and accompanied traps coupled with shorter elements should provide far more loss and less gain.  The longer boom may prove better f/b but it should be minmal.  So I guess I am try to better understand if my understanding of the science is correct than why is the antenna better?  Maybe better advertising?  If I am wrong about my understanding of the science then correct me with fact not conjecture or just what other people say.
All things being equal Mike, the Gain of a Yagi is a function of boom length. A "full size" small tribander has a 14 ft boom, and even that is close spaced on 20 meters!

Most 10 meter 3 element beams have from an 8 to a 12 ft boom.

The Mosley has a 6 ft boom, not enough for even good 10 meter performance, let alone 15 and 20!

The MA5B is almost 7.3  ft boom length, vs only 6 for the Mosley.

I did not look at element length for either antenna.

Logged
KF7CG
Member

Posts: 833




Ignore
« Reply #23 on: March 21, 2013, 09:37:48 AM »

A point missed in the boom length discussion, by the laws of math a two elelment beam can have half or slightly less then the boom length of a 3 element beam.

KF7CG
Logged
KA7NIQ
Member

Posts: 255


WWW

Ignore
« Reply #24 on: March 21, 2013, 10:28:11 AM »

A point missed in the boom length discussion, by the laws of math a two elelment beam can have half or slightly less then the boom length of a 3 element beam.

KF7CG
Good point! Most small 3 element tribanders are on 14 ft booms, so at 7 ft 3 inches, the Cushcraft MA5B is almost exactly 1/2 of that.

Logged
KD2CJJ
Member

Posts: 369




Ignore
« Reply #25 on: March 21, 2013, 10:58:29 AM »

Ahhaha!   That is the type of explanation I have been looking for.  I am a relatively new ham and still learning.

Here are the technical differences for those who are not familiar with the antennas.  Hopefully one of you elmers can help me choose a mini based on scientific fact over just conjecture.  I am mostly interested in 10, 15 and 20m with 20m being my favorite most used band.  WARC is nice to have at this point.  I need a mini due to my QTH and a Hex Beam is just not going to work for the XYL.

Both are two element beams with WARC bands as dipoles.


                                        MA5B                                                                                               MOSLEY MINI 32
Longest Element             17.1 FT                                                                                                         19.6 FT
Boom Length                    7.3 FT                                                                                                          6 FT
Stated Gain on 20m              3.6 dBi                                                                                                       3.3 dBd
F/B     on 20m                       22 dB                                                                                                         17 dB
Matching Network            Two Torrid Baluns w/Capacitors (Looks like a T Network design)                   None / Ugly Balun
Loading Scheme               Traps and Capacitance Hats                                                                           Traps
Bandwidth 20m                 90 kh                                                                                                         >200kh

So correct me if I am wrong (I love to be corrected with the proper information) but it seems to me other than F/B the Mosley should be a more effective and efficient antenna

Any comments?  I think this is a great discussion...!
       
Logged

73

Mike
KD2CJJ
KA7NIQ
Member

Posts: 255


WWW

Ignore
« Reply #26 on: March 21, 2013, 11:36:15 AM »

OK, why do you think the Mosley is the better antenna ?
It has a shorter boom, and no matching device!
The highest gain, bandwidth, and front to back ratio of a Yagi Antenna seldom, if ever, occurs when the driven element is a perfect 52 ohm match for direct coaxial fed.

Logged
KB6HRT
Member

Posts: 101




Ignore
« Reply #27 on: March 21, 2013, 07:57:56 PM »

Mike,
 First off its time for you to put down on paper what your requirements are and the weight them for what you think your needs are. With the information that you have on this post you should be able to make a very well rounded decision on the antenna that will work well for your need. I had most of the information that is on this post when I ordered the MQ-26 an have been very happy with the antenna, it met and exceeded my needs, had a friend that has worked most if not all countries in the world come over to the QTH an checked it the MQ-26 out, his first words after running some checks were it works very well indeed for a mini beam. The MQ-26 has gain on the WARC bands over the MA5B an that was important for me,  I know after using the MQ-26 for 7+ months its true because about 90% of the time I hear both sides of all QSO or 17m.  With the other antennas I have used before.  I did not an its the quitest antenna that I have, an that's good enough enough for me Kiss............KB6HRT
Logged
KE2TR
Member

Posts: 134




Ignore
« Reply #28 on: March 22, 2013, 03:59:07 PM »

Hi Mike, if you can find one used the F12 C3SS would knock the sock's off those two antenna's buy a huge margin. 17&12mtr's will cover well with most AT's built in rig's today but only as good as a dipole but 10/15&20 it's a real beam, no trap's and it out does some larger trapped tribander's, longest element is 24' and a 12' boom, about 27 pounds so the light duty Yaesu rotor will work real well. Those other mini beam's are a step up from a dipole with some FB but low gain, I know they spec around 3 dbd but you would be luck to get maybe 2 dbd on 10&15 and maybe like a dipole on 20. If there is any gain at all its gain/bandwidth is gonna be 20-30khz, yes they show some for of directivity but they have very poor efficiency.
Jim KE2TR
Logged
N4CR
Member

Posts: 1662




Ignore
« Reply #29 on: March 23, 2013, 10:16:25 AM »

MA5B continuous power is 400 watts.

The Mosley Mini 32 continuous power is 250 watts.

Either is suitable for 100 watts ssb, but probably not for use with an amplifier. I have a friend who burned up the traps on an MA5B with an Ameritron AL-811H. So consider that neither of these is suitable for amplifier use in the long term. He liked it well enough before it caught fire.
Logged

73 de N4CR, Phil

We are Coulomb of Borg. Resistance is futile. Voltage, on the other hand, has potential.
Pages: Prev 1 [2] 3 4 5 6 Next   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!