| Author |
Message |
    
Dale
Senior Member
Username: Dale
Post Number: 1630
Registered: 12-2002
| | Posted on Thursday, October 14, 2010 - 5:33 pm: | 
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has anyone tried this antenna?ive looked here under product reviews but didnt find anything
dale/a.k.a.hotrod
cef426
cvc#64
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Tech833
Moderator
Username: Tech833
Post Number: 1881
Registered: 8-2002
| | Posted on Friday, October 15, 2010 - 8:59 am: |
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Plenty of discussion about this antenna. Do a search of the forums and you'll find hours of reading material on it.
Your radio 'Mythbuster' since 1998
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Dale
Senior Member
Username: Dale
Post Number: 1631
Registered: 12-2002
| | Posted on Saturday, October 16, 2010 - 10:19 am: |
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i did a search but only found the orignal astroplane .and then the later cte copy .
i havent seen anything on the sirios version which is different from others being it has a gamma match
dale/a.k.a.hotrod
cef426
cvc#64
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Tech833
Moderator
Username: Tech833
Post Number: 1882
Registered: 8-2002
| | Posted on Wednesday, October 20, 2010 - 10:29 pm: |
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Oh, sorry. You're right. The CTE Top One and the Avanti Astroplane were almost exactly alike. The new Sirio is nothing at all like the Astroplane or Top One. The Sirio is a top loaded 1/4 wave ground plane, nothing more. it has NO gain over a 1/4 wave ground plane.
The Astroplane is sorta an inverted 1/4 wave ground plane with an extended vertical section and actual gain over a standard 1/4 wave ground plane.
Your radio 'Mythbuster' since 1998
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Dale
Senior Member
Username: Dale
Post Number: 1634
Registered: 12-2002
| | Posted on Wednesday, October 27, 2010 - 8:11 pm: |
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thank-you tech 833
dale/a.k.a.hotrod
cef426
cvc#64
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Dt777
New member
Username: Dt777
Post Number: 1
Registered: 6-2010
| | Posted on Sunday, November 07, 2010 - 6:03 pm: |
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Hey GUYS!!! I just picked up one of these and Installed it 3 weeks ago. It "WORKS VERY SUPERB"! I Really Love this Antenna.... Matter of fact, I had a Sirio 827 up for about 3 years and this one is 22 feet in height with 8 ground radials on a 50 foot mast. And this new Top One Astroplane hears and transmits maybe a little better than the 827. And even my friend in his mobile is actually hearing me better in the low valleys about 20 miles away with no drop outs like the 22 foot tall 827 did..This Antenna seems to radiate closer to the curvature to the earth or radiates from the top section and has a superb radiation angle... I have it on a 50 foot telescoping mast and seems to do very well in the wind and this thing is only 12 feet tall.... I have my General Class Ticket and all through 10 meters, it is really flat on the SWR Curve even up to 29.700... Talks really GREAT on 28.355 USB with NO TUNER. And really pretty low SWRs on the regular CB band and even on lower ones below channel 1 too. Really "BROAD" Banded Antenna. A LOT better than my Sirio 827 which I had up for 3 years too. Which is pretty excellent made for a 22 foot tall Antenna. Sirio has done an A+ Job with this one for sure... I think it's much better than the original Avanti Astroplane or AV 101 or that CTE Clone for sure.... I "HIGHLY" recommend one of these over an Antron 99, any day for any reason. MUCH BETTER!!!..... I also had that CTE Clone up for about 6 months like the original Astroplane and it talks Okay but is made very Cheesy and Cheap... This new one is "WELL" constructed and has some thick wall tubing and is really built to last. Copper sells these very reasonable and I plan on leaving this one up permanently for sure.. I give this Antenna a 5 Star Rating for being so Compact, So Efficient and being so "Broad Banded" even for Amateur Radio Work.. A+1 Product for sure!!! |
Dale
Senior Member
Username: Dale
Post Number: 1658
Registered: 12-2002
| | Posted on Friday, November 19, 2010 - 10:28 pm: |
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wow . it beat a 22 foot long antenna, do u get any tvi interference.hows the recieve?i know
on mine 2016 its senitive maybe too much even.
you got my curiousty going
dale/a.k.a.hotrod
cef426
cvc#64
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Dt777
New member
Username: Dt777
Post Number: 3
Registered: 6-2010
| | Posted on Monday, November 22, 2010 - 2:04 pm: |
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Yes Dale, This New Top One Astroplane seems to beat my Sirio 827 about 20 miles away down in valleys with NO dropouts. I seem to hear about the same as the 827 and NO ISSUES with TVI or interference with any of my other electronic devices here. But it is Extremely efficient and has a BROAD SWR curve. Perfect for even 10 Meter work. I will probably run this Antenna Permanently and just keep that 827 around as a back up. The 827 is Still a GOOD antenna and hard to beat. But something about this NEW Astroplane seems to be better. It radiates from the TOP and the 827 does it from the bottom up I believe. Therefore having better coverage on the curvature of the earth. That is why Andy with a Kenwood THX 480 and that cost about $1000.00 and he runs a Z 180 Antenna the one that won the Mobile shootout.. can hear me BETTER with this Top One Astroplane Antenna than the 827. And the 827 is rated with more gain. I also believe that this new one out does the original Astroplane even in performance. I think that New Hoop Design and that Gamma Match seems to make this perform the BEST. Anyway Dale. I believe its worth the Money to get one and try one. I have own a LOT of Antennas through the years and really am impressed a lot with this one. 73s |
Charliebrown
Intermediate Member
Username: Charliebrown
Post Number: 131
Registered: 10-2002
| | Posted on Monday, November 22, 2010 - 3:04 pm: |
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Dt777, Have you had the I MAX 2000? If you have had one , what is your opinion between the two? For me the I MAX 2000 with the GPK is better than the antron 99. But, I have not put it up against other antenna's yet. I like to hear what other's had done with other antenna's and I like to hear other's opinion. How about some information fellow's |
Dale
Senior Member
Username: Dale
Post Number: 1660
Registered: 12-2002
| | Posted on Monday, November 22, 2010 - 8:20 pm: |
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thanks dtt. now is your antenna at the same height as the 827 was.also will a 12 foot
pipe [mast ] work to mount that to or not?
charlie brown i had both the a99 and imax both were tvi killers with stock 4 watts cb.and my imax snapped in two like a little twig.and i know of at least 2 others that had there imax snap.so with that im sticking with aluminn
dale/a.k.a.hotrod
cef426
cvc#64
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Charliebrown
Intermediate Member
Username: Charliebrown
Post Number: 132
Registered: 10-2002
| | Posted on Tuesday, November 23, 2010 - 7:13 am: |
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Hello Dale, I put the GPK on mine and so far have had no complaint's with TVI. Directly at the base of the antenna mast I went with three ground rod's in an x formation connected each rod with copper wire. This seem's to have help me in many other area's other than TVI. But since you like the aluminum better Dale, which of the alumium antenna's are your favorite to use. If you do not mind would you also tell me the difference if any in the performance between the aluminum and the I MAX 2000. Dale I went through you town back in july. I will be going through there again sometime in spring. Perhaps we could get on 27.385 ssb and have a great conversation. |
Dale
Senior Member
Username: Dale
Post Number: 1661
Registered: 12-2002
| | Posted on Tuesday, November 23, 2010 - 8:34 pm: |
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well so far the sirio 2016 is the only antenna
ive used thats aluminum.as far as performances
differences the sirio is slightly quieter
enabling me to hear statiolns i couldnt before.
on transmit it had a slight edge but wasnt really noticed until i started getting into
the 50-60 mile range long ground waves and dx
talking.id really like to try a maco 5/8 against
it.imho i think the maco would be the better one
cause it has 4 full lenth ground radials. just my opinion.27.3850lsb is our local channel here
give my name/numbers a shout everyone here knows me
dale/a.k.a.hotrod
cef426
cvc#64
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Charliebrown
Intermediate Member
Username: Charliebrown
Post Number: 133
Registered: 10-2002
| | Posted on Wednesday, November 24, 2010 - 8:48 am: |
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Thank's Dale for the info. When my son and I go through we will give you a shout. |
Dt777
New member
Username: Dt777
Post Number: 4
Registered: 6-2010
| | Posted on Thursday, November 25, 2010 - 8:34 am: |
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Hey Guys
I have owned both that Imax 2000 and the Antron 99 and they are both good but it seems that the Antron has about a 10 year life span. I came home from work one day and the center element was broke over like a twig. Both the Imax and the Antron seem to have more noise issues and I have received a lot of comments from other operators both Amateur and otherwise that these fiberglass Antennas are LIGHTING and Noise magnets!.......
I sold my Imax and got that Sirio 827 about 4 years ago and I actually gained 1 to 1 and 1/2 S units more on transmit and had a lot better and quieter receive too. Less Noise Issues too.. Then I recently picked up this new Astroplane Top One and this one does about the same as receive as the 827, but maybe a little more better on transmit. A friend in his mobile reports that there is NO dropouts in a valley about 20 miles away. That 827 had some dropout issues. And that Astroplane is far better on the SWR curve than the 827 and those fiberglass antennas too. I have that Astroplane bolted about 48 feet on a 50 foot mast and that 827 was bolted on right at 45 feet on that same mast. But remember that the Sirio 827 is 22 feet high. So from the very tip of the 827 to the ground was about 67 feet. And the Astroplane is 12 feet tall and bolted on the mast at 48 feet which puts that right at about 60 feet from the ground to the tip. And still that Astroplane is still OUT PERFORMING that 827 and the Imax and the Antron 99...... A really EFFICIENT and WELL made Antenna. I had that 827 up for 4 years and its a GREAT Antenna itself...Really GOOD! But If I was going to buy one. I would "GO" with this New Astroplane for sure. I live here in Tulsa and I talk to a guy in the Okla City area and that's about anywhere from 103 miles to 110 miles away on Single Side Band and we hit each other about 3 S units with both the Astroplane and the 827. I use a Yaesu FT 950 for my radio.. And I was told that on 28.355 Upper Side Band that I actually sounded even better than down below in the CB bands. I tell you guys that the New Astroplane seems to REALLY Work and Work WELL. I would recommend the new Astroplane FAR more than any of those Fiberglass Wonders.. "Any Time for Any Reason"!! |
Dale
Senior Member
Username: Dale
Post Number: 1663
Registered: 12-2002
| | Posted on Friday, November 26, 2010 - 10:02 am: |
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dt777, hows the coax assembly done up . cant really tell from pic on coppers web site . and seems this is the only place that carrys this antenna
dale/a.k.a.hotrod
cef426
cvc#64
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Dt777
New member
Username: Dt777
Post Number: 5
Registered: 6-2010
| | Posted on Friday, November 26, 2010 - 9:56 pm: |
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Hey Dale!
Right just below the Gamma Match Assembly is the Coax Connector and it is a VERY easy issue to connect with, no trouble at all. I do use CA 400 Coax that I got from Copper which is basically the same as the LMR 400. Real stiff tough stuff too.. This is Double Shielded and some REALLY good stuff to use on 50ft runs plus. It also minimizes any TVI Issues which I DO NOT have at all. And Copper is the BEST place and the cheapest to buy this Antenna. But like I say, I have owned 3 Antron 99s and 1 Imax 2000, 2 Penetrator 500s, A Starduster which I had up only 1 day... 3 Vector 4000s made by Sirio. A Tornado 27 by Sirio.. A Radio Shack CLR 2, A Four element vertical beam.. An Astroplane CTE Clone. A Sirio 827 (GOOD ANTENNA!)A Windom Dipole which I use on 20, 40, and 80 Meters and now the New Sirio Top One Astroplane. Which really, I like this one THE BEST of all!!! Most Compact, Most Efficient,Radiates best to the curvature of the earth, Really built really well, especially in the hoop section and in the Top Hat too. And really Broad Banded for lots of frequencies without the use of a tuner. And very affordable too. By the way, the last Antron I had. Which I was tuning it with my Antenna Analyzer on a test pole. And after the tuning session, I hooked up my Radio to this one and It tore up my TV And my JVC Surround Sound Stereo with TVI Issues... I got MAD and just GIVE IT away to a friend just to use on CB Radio. And really NO MORE Fiberglass Wonders for me. Sorry. But that is the Truth, Dale for sure. But I believe the Sirio Top One Astroplane is the WINNER for me Dale.. |
Dale
Senior Member
Username: Dale
Post Number: 1666
Registered: 12-2002
| | Posted on Tuesday, November 30, 2010 - 11:12 pm: |
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i may have to get 1 and try. i livce in a valley
and cant afford a beam.[which is probaly what i need]and not allowed a huge tower with guy wires
but this antenna being top loaded or it seems to be . might give me more of an edge.i had tvi issues with a99,imaxes,army bigstick. so ya its allumin for me. i use lmr 400 coax. thanks for info.
dale/a.k.a.hotrod
cef426
cvc#64
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Dt777
New member
Username: Dt777
Post Number: 6
Registered: 6-2010
| | Posted on Saturday, December 11, 2010 - 9:26 pm: |
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Hey Dale
I really think that you will be really impressed with this one. It is easy to build and if you have a Metric Tape Measure. Then it will be a snap. 580 Millimeters on the measurement on the Gamma Match and do your best in getting this figure "EXACT" and that Gamma Match "PERFECTLY ALIGNED"!!!.. Then on the Hoop section, then that measurement is 1305 Millimeters which is the four tubes that connect to the bottom ring hoop section. "Double Check" your measurements on your build. The Instructions on this thing is really pretty simple. I actually built mine in my "LIVING ROOM". Just pulled back the Coffee Table and went to work. Took my "Time" in the build and Triple Checked those measurements just to be sure. And then I put it on a 50ft telescoping mast with about 2 feet shy on the top section which was 48 feet total length and used that ski like nylon guy rope with 8 Gauge ground wire on the bottom U clamp to the 10 ft ground rod in the ground and I went with CA 400 Coax which is like the LMR 400 and then hooked up my MFJ Antenna Analyzer and it Checked Out "REAL GOOD". The Higher up I went in the Frequencies the BETTER it got. But I have good some really "EXCELLENT" Reports and Radio Checks and I have been told that this actually OUT TALKS or does better my Sirio 827 that I used to have up too. But anyway Dale, I think you will be REALLY IMPRESSED with this one. I think I will be leaving this one up very permanently. If you get one, then Please let me know your results with yours too.
Thanks Dale |
Dt777
New member
Username: Dt777
Post Number: 7
Registered: 6-2010
| | Posted on Saturday, December 11, 2010 - 9:40 pm: |
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Hey Dale Check This Out!
The Astroplane (AV-101) antenna.
Background.
The Astroplane antenna is a product of 1960s America. Citizen's Band radio was a 23 channel, AM only system and required a license to operate.
FCC restrictions limited the antenna height to 20 feet above the property, and most CB antennas would have been basic 1/2 or 5/8 wave monopole and base loaded types.
The Astroplane was designed to offer an improved radiation pattern, giving greater distance, while still allowing the antenna to be mounted on the roof without exceeding the height limit.
Astroplane
Design.
The antenna is designed to radiate maximum signal from the top section, sending the signal over roof tops to avoid the loss of signal through buildings.
Although the design is intended to have a 1/4 wave top section, this would make the antenna a total of 16 feet. As the antenna should have at least 8 feet of mast below it, the total when mounted would be more than the 20 feet maximum.
The answer was to use a shorter top section of around 1/8 wave length, and top load it to the 1/4 wavelength with a capacity hat (the top radials). This combination lowers the radiation angle, but also decreases the bandwidth.
For wider bandwidth use, this top section can be changed for a straight 1/4 wavelength section.
Quick Reference.
Creators:
Manufacturer:
Louis J. Martino,
Herbert R Blaese.
Avanti Communications
Specifications.
Claimed gain:
Impedance:
SWR:
Bandwidth:
4dBi.
50 Ohms.
Pretuned, below 1.4:1
27 - 29.7MHz.
Measurements.
Please note that component measurements are complete lengths. Once parts are slotted together, the electrical length may be different.
Full length:
Top section length:
Top Radials:
Bottom half length:
Loop Diameter:
Fibreglass rod length:
Mounting pole length:
12 Feet.
4 Feet.
4 of @ 24 Inches
8 Feet.
30.5 Inches.
13 Inches.
> 12 Feet. |
Wildchild
Intermediate Member
Username: Wildchild
Post Number: 136
Registered: 9-2003
| | Posted on Thursday, January 13, 2011 - 10:36 pm: |
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I had a CTE Top One and it was one of the best antennas I had ever had. I had it mounted at 36 feet to the feed point worked like nothing else I had ever used.
I should be hit in the head with a 2X4 for ever selling it. |
Mikefromms
Senior Member
Username: Mikefromms
Post Number: 1099
Registered: 6-2003
| | Posted on Friday, January 14, 2011 - 11:30 pm: |
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I agree wholeheartedly. Fine antenna and works really great close to the earth. |
Casey
New member
Username: Casey
Post Number: 3
Registered: 11-2010
| | Posted on Wednesday, January 19, 2011 - 1:48 am: |
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I dunno, I remember comparing an astro plain to my five8ths and the five8ths got better signals and was stronger
maybe theirs a time and a place for everthing but I dont believe a folded up mess like that can beat out a full size five8ths of 22 feet high.
I think it was for show and way back when it was prolly reeley sumptin to see in the air when their was olny a couple antenna desines out there
I heared that sirio has just made some new antenna like the imax outta fiberglass and that it is suppost to be kickin a&& on everthing else. it's called the ganemaster and its got some center fedd five8ths thing goin on |
Tech833
Moderator
Username: Tech833
Post Number: 1907
Registered: 8-2002
| | Posted on Friday, January 21, 2011 - 12:06 pm: |
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Casey,
What do you base your opinion on? What test parameters?
If you search through some of the older posts, you will see that we have had a Top One on the antenna range and done extensive testing on it. The Top One will work better than a 5/8 ground plane antenna if the user isn't able to put their antenna very high. That is a proven fact.
A Top One is not a "folded up mess". It is, in fact, an inverted folded dipole. The folded dipole is a well documented antenna and used frequently in commercial radio services.
The Gainmaster has some merit. However, until I have one on an antenna test range, I feel unqualified to comment. Marketing hype does not equal fact. If marketing hype were true, then an Antron 99 would have more gain than a beam.
Your radio 'Mythbuster' since 1998
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Press_man
Intermediate Member
Username: Press_man
Post Number: 182
Registered: 5-2008
| | Posted on Monday, February 14, 2011 - 7:07 pm: |
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Just wanted to add my 2 cents in here. I'm not as versed as 833 neither do I claim to be. I've used the Astro Plane and have a new Top One. The Astro or Top One if you will, have served me better than any other omni AT MY LOCATION.
I've used an Astro from 4'to 60'above the ground. At 4' and only 8 watts out of a converted Colt 480 on 28.4 megs a friend and I worked a mobile in Argentina. Up at 60' the rule was the same - if you can hear it you can talk to it.
Wally/Pressman/KC4ZWM
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Theundertaker
New member
Username: Theundertaker
Post Number: 1
Registered: 7-2009
| | Posted on Monday, December 12, 2011 - 4:19 pm: |
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Had a Sirio Top One antenna for about 5 years.
Was up about 24 feet (on push-up pole) to connection point (mid-way up the antenna) and I made contacts ok on am and ssb. Had very flat swr way beyond the 40 ch band so I played a lot on 27.555. Was happy until I got a maco 5/8 groundplane. Wow, was I surprised at the difference! Much better ears and better tx, made contacts easily with the big boys out there - they were hearing me well. Locals all asked what I did to my radio, they could hear the difference too.
The topone is probably the best antenna you can use when mounting is limited to under 25 feet because of its radiation angle. but if you have the room, get a real antenna up there 30 feet plus.
Also the construction was a bit cheesy with 4 plastic couplers for the ring and plastic supports to the pole. It made it through lots of Florida weather, but for $99 now? I don't think so. And it is just a 1/4 wave antenna so not much gain if any. |
Tech833
Moderator
Username: Tech833
Post Number: 2076
Registered: 8-2002
| | Posted on Tuesday, December 13, 2011 - 12:32 pm: |
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The old Top One (Avanti Astroplane copy) is not the same as the new Top One. The new Top One is more like a top loaded Starduster, not like the Astroplane at all.
Yes, you are correct. If you cannot mount your antenna very high above ground, the Top One (old version) is the way to go. If you can put up 20 or more feet of support (pole, tower, tree, whatever) then the 5/8 wave antenna is by far your best bet. We have hashed this out many times.
Your radio 'Mythbuster' since 1998
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Dale
Senior Member
Username: Dale
Post Number: 1797
Registered: 12-2002
| | Posted on Sunday, January 22, 2012 - 12:36 pm: |
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just wanted to bring this back up. was wondering
if ya mount the new astroplane close to the ground.
as its been said countless times the old version could .but this newer one appears slightly different..hey tech 833 how about a updated version
of your how to choose a antenna with all these new
sirio antennas..lol
dale/a.k.a.hotrod
cef426
cvc#64
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Tech833
Moderator
Username: Tech833
Post Number: 2106
Registered: 8-2002
| | Posted on Monday, January 23, 2012 - 12:42 pm: |
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The new one will work much better mounted up high. It will be disappointing mounted low, unlike the old version.
I seriously wish the new antenna had a different name. It is NOTHING like the Avanti Astroplane Radiator antenna or the CTE copy.
Your radio 'Mythbuster' since 1998
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Dale
Senior Member
Username: Dale
Post Number: 1798
Registered: 12-2002
| | Posted on Monday, January 23, 2012 - 6:00 pm: |
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thanks 833 kinda what i thought. but was hoping
it still worked like the old one. now wish i got one several years ago when coppers had the cte version of it. ohwell live and learn
dale/a.k.a.hotrod
cef426
cvc#64
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Tech833
Moderator
Username: Tech833
Post Number: 2108
Registered: 8-2002
| | Posted on Tuesday, January 24, 2012 - 12:16 pm: |
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I have enough parts here from a CTE copy to assemble one. You're welcome to them. Are you close enough to come pick it up?
Your radio 'Mythbuster' since 1998
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Dale
Senior Member
Username: Dale
Post Number: 1800
Registered: 12-2002
| | Posted on Friday, January 27, 2012 - 9:27 am: |
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no im not. wish i was ..lol
dale/a.k.a.hotrod
cef426
cvc#64
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Dale
Senior Member
Username: Dale
Post Number: 1802
Registered: 12-2002
| | Posted on Sunday, January 29, 2012 - 7:02 pm: |
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its been said to also be a good antenna in hilly areas. ive lookerd thru somne of my old posts
and i have lots ofhills baround me. not so much a bowl. example
south/west= fairly flat get out great
south east =few hills not many get ouut good
north east = many hills up and down very rough
so ive seen at one low point i couldnt get back to my base at 8 miles .but i got out where elevation was higher i could this was at 12-15 miles.would the topone help out with this or even the star duster.seems my 5/8 has alot of drop offs depending on terrain.thanks tech 833
dale/a.k.a.hotrod
cef426
cvc#64
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Tech833
Moderator
Username: Tech833
Post Number: 2113
Registered: 8-2002
| | Posted on Friday, February 03, 2012 - 12:54 am: |
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Well... Not a lot.
Your radio 'Mythbuster' since 1998
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Charliebrown
Intermediate Member
Username: Charliebrown
Post Number: 244
Registered: 10-2002
| | Posted on Friday, February 03, 2012 - 6:52 am: |
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Here is the reason we have to keep asking about these antenna's. The antenna company's will not tell the truth about their antenna's so they can sell more to us who know no better. It would cost too much money to buy and try out all the antenna's to see what is best for us. Thank God for people like TECH 833 and other's that help us. See ya later Hot Rod. |
Dale
Senior Member
Username: Dale
Post Number: 1821
Registered: 12-2002
| | Posted on Saturday, February 04, 2012 - 12:31 am: |
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i ask cause location plays a role. also and
im not sure how each antenna woulkd perform
in certain sitations.
dale/a.k.a.hotrod
cef426
cvc#64
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Charliebrown
Intermediate Member
Username: Charliebrown
Post Number: 245
Registered: 10-2002
| | Posted on Saturday, February 04, 2012 - 8:43 am: |
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Dale, My point is that we do not get the correct information about these antenna's because the company hype up the information so people like us will buy them. the only way we get the truth is people like TECH 833. I have bought many antenna's in the past 45 year's only to find them to be junk and a waste of money. I wish I had access to real truthful information like from TECH 833 and other's. I would have saved a lot of money over the year's. But, remember I am talking about an antenna company that is misleading us with false claim's and lies to sell an antenna. No offense intended. Look at the antenna' that have been exposed. |
Silver_surfer
Junior Member
Username: Silver_surfer
Post Number: 19
Registered: 7-2008
| | Posted on Saturday, February 04, 2012 - 9:00 am: |
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Just buy the Top One and sky it and tie it and try it if you don't like it sell it, I had the old Astro up back in the Bronx over 100ft high very good,I like it because it is small and lite,maybe I will buy one to this summer,follow Jesus. |
Tech833
Moderator
Username: Tech833
Post Number: 2120
Registered: 8-2002
| | Posted on Saturday, February 04, 2012 - 9:34 am: |
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Don't thank me, thank yourself for actually entertaining what I have to say.
Antenna companies aren't exactly fabricating false claims in a tactical effort to trick someone into buying their product(s). They are only trying to keep up with what their competitors claim. It has just been going on for so many decades now that it is totally out of control.
Think of it as dB gain (dollar) "inflation" due to the "antenna performance economy". Feel better?
Your radio 'Mythbuster' since 1998
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Charliebrown
Intermediate Member
Username: Charliebrown
Post Number: 246
Registered: 10-2002
| | Posted on Monday, February 06, 2012 - 3:17 pm: |
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A lot of people do not know the difference between db-dbd-dbi gain and so on. So when they see a number so high as 11 or 9.9 dbi gain they think they are getting a real high gain antenna. For example the I max 2000 is claim to be 8.2 dbi gain, but in db it is only .8 db gain. Now if they had not used dbi on their claim and put the .8 db gain to those who do not know the difference, would you think they would be selling as well? This is my point. Some antenna's in gain are using db or dbd gain while other's are using dbi to show a higher number knowing that it will sell better. FEEL GOOD NUMBER'S TO SELL. On antenna's, I use the I max 2000. It work's for me. |
Tech833
Moderator
Username: Tech833
Post Number: 2125
Registered: 8-2002
| | Posted on Thursday, February 09, 2012 - 12:18 pm: |
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But most of the gain figures used in antenna pitches now have no true reference.
Let's use your example of the Imax 8.2 dB gain. That would have to be 8.2 dBc gain. The "c" would stand for "coathanger". The Antron 99's 9.9 dB gain claim should be 9.9 dBn. The "n" is for "no antenna at all".
Years ago, we discussed using only dBi or dBd figures for Copper antenna ads. Several people protested. And, honestly, I really didn't want to get in the middle of it.
Your radio 'Mythbuster' since 1998
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Dave_sr798
New member
Username: Dave_sr798
Post Number: 2
Registered: 4-2012
| | Posted on Wednesday, April 11, 2012 - 1:17 am: |
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Currently I have a discone for scanning and a home-brewed TV antenna on my roof top. They are mounted 15 feet away from where I plan to mount a Serio Gain Master. Are these two antennas two close for the Serio Gain Master to perform well? |
Gp809
New member
Username: Gp809
Post Number: 8
Registered: 6-2009
| | Posted on Thursday, April 12, 2012 - 9:06 am: |
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SIRIO not SERIO. |
Dale
Senior Member
Username: Dale
Post Number: 1863
Registered: 12-2002
| | Posted on Tuesday, June 05, 2012 - 8:40 pm: |
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imho it shouldnt interfer. but to be on
the safe side id keep them at LEAST 36 feet apart.
ive rad other reviews this antemnna like to be in the sky by itself.
dale/a.k.a.hotrod
cef426
cvc#64
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