HY-GAIN SPT-500 or Tornado 27?

[T23]

Getting my base on air, wanted to ask which base antenna was best. I am leaning twards the hy-gain spt-500. Can the hy-gain spt-500 tune to 11 meters easily? And what about gain, does the spt-500 have more efficient gain since there is no coil?

T23

 

[binrat]

Getting my base on air, wanted to ask which base antenna was best. I am leaning twards the hy-gain spt-500. Can the hy-gain spt-500 tune to 11 meters easily? And what about gain, does the spt-500 have more efficient gain since there is no coil?

T23

Sure, just assemble it as per the instructions provided.

 

[bob85]

id take the hygain, the sirio tornado uses thin wall weak tube.

 

[T23]

Ok, great info, I appreceiate the comment on build quaility. Is there any cutting involved in the 11 meter tuning of the spt-500?

T23

 

[binrat]

Ok, great info, I appreceiate the comment on build quaility. Is there any cutting involved in the 11 meter tuning of the spt-500?

T23

Why would you think that??

google is your friend
http://www.hy-gain.com/pdffiles/SPT-500.pdf

 

[binrat]

There is an error in the directions BTW. instead of 19' it should say 22'

 

[BOOTY MONSTER]

id take the hygain, the sirio tornado uses thin wall weak tube.

and it has 1/4wl ground elements .

 

[T23]

Good point. What about the gain of the spt-500?


T23

 

[binrat]

pg 2 of the link I posted.

 

[T23]

5.3db, is this correct? This thing has 5.3 db of gain as compared with a standard dipole? what does this translate to as far as received/transmitted signal strength?


T23

 

[binrat]

Personally I think it depends on your locale

 

[Marconi]

id take the hygain, the sirio tornado uses thin wall weak tube.

Hey Bob, while I was recently modeling my New Vector 4000, I noticed that the tubing was a bit larger per tapered section that the HyGain SP500, except for the tip which was a lot smaller than I realized, plus it had a small top hat. I don't know about the tubing thickness issues, but the Vector looks to be heavier duty, except for this tip.

I checked my Sigma 4, starting at 1.50" vs. 1.25" SP500, 1.456" Vector. The Sigma tip is .50", SP500, .4375", Vector is .1875" which is very small considering it has a top hat.

It looks to me that all the newer antennas are weaker than we might expect, and if you're in a high wind areas like you, that could be a problem.

Heck, my old Starduster has a tip, .3125" x 27.5", that is pretty small.

Is the tip of the New Vector stainless steel?

 

[Zman]

The Tornado 27 is just as good as the SPT 500. I owned one and i noticed almost no difference between the two. Guys, i use REAL WORLD testing by putting the mother f**ker up and talking to other ops on it, and NOT some goofy computer modeling crap that to me is useless!!!!!! Just one redneck hillbillys observation.

 

[bob85]

its not a diameter issue eddie, sirio use thin wall tube for the upper sections, dxengineering say the sp500 uses heavy tube, if its not thicker walled than the sirio they are pulling our todgersr,
an old hygain was better made than sirio

dxenginerings own tube is .058" wall same as avanti & i-10k vs sirio about .049"

the tips of vector and tornado are aluminum.

 

[TonyV225]

That wall thickness is a huge deal aswell as a matter of fact I was talking with Tom Charles of Gizmotchy / Maco and they this past year also bought a new jig to have thicker walled tubing that setup cost them a little over $60.000 but the overall importance it the sturdyness.