Wade CYD-1446 vs other UHF Corner Reflector Yagis? - Canadian TV, Computing and Home Theatre Forums
 

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Old 2010-12-28, 06:27 PM   #1
Choclab
 
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Question Wade CYD-1446 vs other UHF Corner Reflector Yagis?

Hey guys, just thought I'd ask some of you old hands this. Some of you might have some experience with this antenna since it's a Canadian line... And if not, it might be fun to speculate.

I got a CYD-1446 yagi for Christmas (you know you love antennas when you ask your family for one) and I'm wondering how you think it would compare to other high-gain antennas like the Winegard 9032 or the old CM 4248, or top bowtie antennas like the CM4228 or Winegard 8800. I have all these, so I can compare myself, but I wanted to see what you all thought before I went to the trouble of putting it up.

Here are some gain plots I found online:

http://ralphselectronics.biz/images/JER-CYD1446.jpg

Of course, this doesn't say if it's dbi or dbd... I tend to think dbd, just based on what I've seen for some other high-gain antennas. Also, my impression is that Wade is very honest with its gain claims as compared to some other companies (like, say, Winegard, which many feel exaggerates a bit).

I will say that I was surprised at how small it was relative to other yagis. This makes me a little doubtful about how good the gain really is, but then it is scaled for the lower band compared to other yagis that are older and designed to reach all the way up to 83. The 9032 in particular is very long, but I was disappointed in its performance in the channel 19-40 area.

One thing I do like is that its construction is very heavy duty, just as I expected. (This is the first Wade I've ever seen.) A 10y9s channel 9 yagi that I also got is the same way.

Would love to hear from any who have actually used this antenna, or anyone who would like to throw in their two cents. Thanks for any opinions.
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Old 2010-12-28, 07:56 PM   #2
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hey before you go and put her up get out the tape measure
so a model can be made
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Old 2010-12-28, 09:39 PM   #3
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I'd be happy to. I can get all the dimensions tomorrow, but I did notice that it's about 75" long compared to the 4248's 80". The directors are longer than those on the 9032 and the little Radio Shack u-75, but smaller than the odd diamond-shaped ones on the 4248.
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Old 2011-04-08, 02:39 PM   #4
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Quote:
Originally Posted by Choclab View Post
The directors are longer than those on the 9032 and the little Radio Shack u-75
That is because they are cut for channel 46. This improves the gain for lower channel numbers but kills the performance for the high ones. Looking at the plot in the link you provided, I would guess that it may also work for a couple channels above 46, but the slope becomes so sharp that you will get severe distortions within the 6MHz channel, so it may not work for anything above about channel 48, even if you have a strong signal.
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Old 2011-04-08, 03:48 PM   #5
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Ack, I totally forgot about this thread until I got the email notification... Sorry for forgetting, Wildwillie, if you really wanted to model it! If you still do, I may add them later.

And yep, I'm aware of the scaling... Was just trying to be descriptive. Wouldn't it be great if other companies would scale these old things up for the newer band? (At least down here in the US.)

FWIW, I had it up for a few days, and I can't say it was really any better than my 8-bays or my CM 4248. But it is much smaller than the CM yagi, which would be useful for a lot of people. I hate to get rid of any high gain antenna, but I have so many that I may actually sell this one. The box it came in is quite small compared to the others and would be very reasonable to ship, I think.
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Old 2011-05-04, 03:10 PM   #6
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I don't know about others, but I am interested in the dimensions.
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Old 2011-05-05, 10:25 AM   #7
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Okay, finally got it done... Had some incomplete dimensions, but I think I have enough now, plus a couple of pics.





Total length = 162 cm
Director width = 19 cm
Director spacing = 12cm
Last director to driven element = 6 cm
Each side of driven element = 14 cm (note that it's not a folded dipole)
Reflector distance behind D.E. = 12 cm
Wider reflector element = 56 cm
Narrower reflector element = 38 cm

Hope I included enough info... If anything looks obviously wrong or if you need more dimensions, please let me know.
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Old 2011-05-05, 11:57 AM   #8
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Thanks! Certainly a nice looking antenna.
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Old 2011-05-05, 12:12 PM   #9
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Choclab is there any text stamped onto the u-bolt mounting bracket by the factory?
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Old 2011-05-05, 03:55 PM   #10
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Quote:
Wider reflector element = 56 cm
Narrower reflector element = 38 cm
So on each half of the corner reflector, there are two short elements and 1 long element ?

Is the corner reflector angle 90 degrees ?

What is the feed point distance, measured center of bolt to center of bolt ?
2 1/4" (57 mm) like on their other antennas, maybe ?

Can you post some close up pictures of the driven element section ?
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Old 2011-05-05, 07:31 PM   #11
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Well, I tried to email the pic of the driven element to myself, but for some reason it isn't going through, so I'll try again when I get home and can download the pics via cable.

Anyway, the corner reflector is 90 degrees.

I couldn't find any stamping on the u-bolt assembly.

The driven element feed gap is 4 cm at the bolts where the balun attaches... The driven elements themselves are 5 cm apart. (The bolts that touch the driven element are angled slightly inward.)

Oh, and yes, it's hard to see for all the metal in the pic, but if you notice there are three reflectors on each side of the corner reflector, with the top and bottom ones being longer than the other two. Reminds me a little of the Winegard 9095, only IIRC the 9095 has two of each length.
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Old 2011-05-05, 07:56 PM   #12
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Also will need some reflector spacings and position measurements.
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Old 2011-05-05, 08:06 PM   #13
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I knew I wouldn't get it all at once...

300, what do you mean by reflector position measurements?

Is there anything else I'm forgetting? I did get that the diameter of the DE is a touch over 1 cm, say 12mm, if that's important.
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Old 2011-05-05, 09:49 PM   #14
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Quote:
what do you mean by reflector position measurements?
How high and how far back from a reference point. I would use the center of the long boom as the reference point.

Quote:
I did get that the diameter of the DE is a touch over 1 cm, say 12mm, if that's important.
So theyre thicker than the 1 cm (3/8") reflector elements ?

Also how wide a metal is used for the directors ? Looks like about 13 mm.
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Old 2011-05-09, 02:33 PM   #15
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Okay, sorry for the delay. Here's a close-up of the driven element... It's kind of hard to see with the plastic around it.



Here are some other measurements:

Reflector spacing = 11 cm
Director width = 13 mm (good eye, 300!)
Closest reflector in corner reflector = 13.5 cm behind and above/below the D.E.

If I need to measure the other corner reflector elements from a reference point, please let me know... I should be able to go out and check anytime this afternoon.

Thanks!
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