Antenna Specialists Super Magnum

[Needle Bender]

Man you guys almost have me in tears! Definitely bringing back old memories.

The Taylor GLR4 I had in '75 was a wet noodle in the wind, small diameter 6061-T6 is very flexi - but always seems to come back to straight, but it was quite the performer.
Beat the HELL out of my Astroplane.

A while back Marconi posted several patterns, including one for a .64, and these were, I believe, in free space.

I recall the .64 seemed to have a slight edge over the .625 at ~8°-10° and a lot more over both the .625 & the Vector, above ~20°-25° up to around 45°.

The .64 seems to fill-in better where the .625 & Vector designs dip, at medium take-off angles of radiation, while still maintaining a level of gain at the lower TOA somewhere between the 5/8 and the Vector.

Very interesting about the .58 there The DB. At what elevations above ground did you see the highest gain increase over the .625?

...and when you say linearly loaded, have you a pic to share? Anything like the Hy-gain P500 matching network?

 

[The DB]

Very interesting about the .58 there The DB. At what elevations above ground did you see the highest gain increase over the .625?

I was just playing around with linear loading, the radials on the antenna are one wavelength above earth. It wasn't much of a difference gain wise, you wouldn't have noticed the difference at any point in the antenna length range I tested. I was surprised to see such a short length have the highest gain, although I suspect that the linear loading has something to do with it. Looking at the model it isn't to far off of what the I-10k and Shockwave antennas look like, although in this case the trombone section is not tapped. It shouldn't be to difficult to modify said antenna for said antennas layout...

The DB

 

[2RT307]

http://www.ebay.com/itm/TAYLOR-GLR-...OUND-PLANE-OLD-1970s-/172077936437?rmvSB=true

googled and got lucky(i may want to buy a lottery ticket today), there is an old taylor for sale on ebay. It is the glr-4 6400. The packaging on the outside of the old original box states it is a .64 wavelength, although the ebay seller possibly incorrectly lists it as a 5/8 wavelength.

Other info on the old box: Grand Slammer 6400 Taylored for Communication
extended gain ground plane
Taylor Radio Company
3329 Commerce Drive
North (something?) Industrial park
Augusta, Georgia 30904
phone 404-736-3336

i doubt the address and phone are valid anymore, but there it is.

check the link out above.

I do remember that mine was called a Grand Slam, or Grand Slammer... one or the other. I knew they were in Georgia, too. Thanks!

73,
Brett

 

[gamegetter]

GG I checked and Commish has not been around for some time, so thank you for your help.

Marconi, i have the old super maggie main element put back together, except for a piece at the bottom where my break occurred, as soon as i can locate that, i can get a measurement. I have that stored somewhere in my radio room or garage.

 

[Marconi]

Marconi, i have the old super maggie main element put back together, except for a piece at the bottom where my break occurred, as soon as i can locate that, i can get a measurement. I have that stored somewhere in my radio room or garage.

Thanks bud, when you get time.

Isn't this antenna similar to the old CLR 2's raised radial design?

Does the matching coil look similar to the HG?

Is the matcher located inside of the bottom hub or is it on the exterior around radiator near the bottom of the antenna mount?

Can you describe the detail dimensions of this coil?

Are the radials 102" x diameter as installed?

If this is close, then the antenna may simply be a 4 radial version of the 3 element HG CLR2, right?

 

[gamegetter]

Thanks bud, when you get time.

Isn't this antenna similar to the old CLR 2's raised radial design?
yes, however,the super maggie has 4 ground plane radials as opposed to the clr2's 3 radials
Does the matching coil look similar to the HG?
I don't have a clr2, i do have an old hygain VP2 which to me appears to be very similar to the clr2 except for the top hat. from what i remember the coil on the super maggie is heftier with possibly a few more turns, when i find the parts to the super maggie I should be able to give you a better idea however my vp2 is not disassembled at the moment so i can't directly compare, and having to rely on my memory is "no bueno my friend"!

Is the matcher located inside of the bottom hub or is it on the exterior around radiator near the bottom of the antenna mount?
i believe it is inside see the pics on this thread:
http://www.worldwidedx.com/threads/aluminum-welding.112700/page-3
post #32

Can you describe the detail dimensions of this coil? just as soon as I can locate the parts! see the pics i quoted above and see if that helps in the mean time.

Are the radials 102" x diameter as installed? I will measure tonight.

If this is close, then the antenna may simply be a 4 radial version of the 3 element HG CLR2, right?

i was thinking the same thing. i would be interested in what the model shows.

have a good day.

 

[gamegetter]

Marconi, ground plane radials are 108 inches on my super maggie.

 

[Marconi]

Marconi, ground plane radials are 108 inches on my super maggie.

Ok bud, maybe you can list that dimension when you find the base element. Also get me the tubing diameter for the base of the radiator and radials as well. If you think the antenna is close to the CLR2, then I can use those dimensions.

I just need the coil if I can add it to the model. Maybe you can post a close up picture of the coil and feed point.

Thanks and keep me posted.

 

[Commish]

Commish could you give me the dimensions for your Super Mag? I would like to model it, but I'm not sure of the dimensions.

I will get it out this weekend and take some measurements for you. I also picked up a like new A/S Mighty Mag M227, circa 1974...

 

[Commish]

GG I checked and Commish has not been around for some time, so thank you for your help.

Yeah, sorry for the absence. Had to travel for work...

 

[gamegetter]

welcome back commish, are you able to take measurements of the antenna?

 

[Marconi]

Just saw that commish is back. Thanks if you can help this old man.

 

[Commish]

welcome back commish, are you able to take measurements of the antenna?

Yes, I'm back! Last week my daughter had twins so that's kept me hopping! Going to pull the antenna out this weekend and take measurements, so stay tuned!!

 

[gamegetter]

congrats on the granddaughters, 2 not 1, that will keep you hopping when they get to running!

it will be interesting to see what your super maggie measures out to be and compare to mine. as soon as i locate a piece i need i can compare the radiator length to yours.

my ground plane radials measured out at 108 inches, i will get a diameter this weekend hopefully.

 

[Commish]

welcome back commish, are you able to take measurements of the antenna?

Ok, dug her out and took measurements. Here we go...
First I'll give the section lengths, then the assembled over all length.

The ground planes are 108" tip to tip. About 2" is held by the base clamps.
Base section with coil...41" from too of coil.
Three middle sections each 48" overall.
Top section with ring...45 1/2"
Total assembled length with factory screw positions is 207" from top of coil to tip of antenna.
Overall coil length is 10 1/4 ".

The antenna is still in great shape with no dents or bends. Just needs a good cleaning and checking of the coil housing.
I don't remember if I bought this new or used, but believe it was bought used in 1968. I would assume the antenna can be trimmed by moving the screws to change length, or maybe the 207" was designed by the factory based on coil performance? Anyway, hope this helps..