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EV's Recommended & Top Rated DTV Indoor UHF/VHF Set Top Antenna Review Round-Up Guide - Page 59

post #1741 of 3229
Thread Starter 
Group on Roof















post #1742 of 3229
Out of that group I think the small clear stream would be good. I don't think I could ever convince my wife to have it any higher than the poll however. How would the DA-5200, Winegard Squareshooter, or the Lacrosse do in my situation?
post #1743 of 3229
Thread Starter 
Quote:
Originally Posted by Cbl12886 View Post

I was hoping someone could recommend me an antenna. My wife and I just bought a house that is 100% concrete (Inside and Outside walls). We have not moved in yet (renovations will continue for a few more weeks) so I have not been able to try the reception. We life right outside Orlando, FL but do not want to spend the $50 a month for Cable TV, just internet for now. In the back of the house, there is a 10-12' pole with a outdoor light on it. I was thinking about putting a small antenna on it towards the top and running the cable along the outside of the house. The poll is in the southeast side of the house, which is pointing towards all the stations. The only problem however is that there is a big two story house which it will not clear. The pole is taller than our roof though. Also, the antenna would have to be pretty minimal looking or my wife would not be too pleased. Any suggestions?

http://www.tvfool.com/?option=com_wr...663d6fcf3117b6

You should have very little problem finding an antenna that will work, flat land, strong signals, Line of Sight to the towers, pole on correct side of house.

The only hitch is the neighbors house. What is his house made of, siding, roofing material, (super secret aluminum foil tape under siding sheathing) etc?

Assumming your neighbors house is wood construction with no major problem materials....

You only have one station on the high side of VHF Hi, Channel 11, NBC. So you need some VHF gain.

RCA ANT751 Best performance on VHF, very good not great performance on UHF. Tight beamwidth, most balanced antenna on UHF and VHF Hi in this lineup. Its mounting cantilevers and is thus higher stress on the poll than most of these others. Made in USA. Still should use an amplifier though.

Channel Master 2016 Great performance on UHF, VHF dipoles will give you enough on VHF for Channel 11. 2nd best performance of these antennas on VHF Hi.

Winegard Square Shooter 1000 Some performance on VHF Hi, especially in conjuction with the CM 7777 amplifier. Not as good on UHF as any of these others.

Antennas Direct ClearStream1 or ClearStream2 These have great UHF performance and wide beamwidths....they perform on VHF about as good maybe a tad better than the CM 4221....the CM 7777 amp will help with that VHF channel.

Channel Master 4221 Old recently discontinued style (American Made) not the newer Chinese ones....Great UHF performance....this offers some gain on VHF Hi, but I wouldnt call it a VHF Hi antenna, though it may be enough. Very solidly built...galvanized steel. The CM 7777 amp will help with that VHF channel.

Winegard Batwing (with wingman UHF option)


I would pair any of these with an amplifier like the Channel Master 7777. This should give you enough oomph to push through any likely length of cable (use RG6), and several splitters.

====

This article from the HDTVexpert seems right up your alley. Check it out.

Five (Antennas) To Get Ready

PETER PUTMAN, CTS

http://hdtvexpert.com/pages_c/Five_Antennas.html
post #1744 of 3229
Thread Starter 
Quote:
Originally Posted by Cbl12886 View Post

Out of that group I think the small clear stream would be good. I don't think I could ever convince my wife to have it any higher than the poll however. How would the DA-5200, Winegard Squareshooter, or the Lacrosse do in my situation?

The Winegard Square Shooter may work. See above.

The Philips MANT940 is a possibility as well although it comes with an inferior (to the CM 7777) amplifier. Its worth a shot....mount it "sideways" with the wedge upwards to shed rain....the horizontal orientation is beneficial for VHF reception. Its a similar but better choice than the RS DA 5200 because of that VHF Hi station.


The DB2 and Lacrosse are similar and I couldnt say if it would pick up Channel 11 reliably. I would try the Antennas Direct C1 or C2 first though. I was picking up channel 7 at 45 miles in my bad tree situation on the roof with the CM 7777 amplifier, though not reliably. My signal is -70dbm though and your higher Channel 11 (which should help with reception using a smaller antenna) is -30dbm. I think the AD CS1 or CS2 will probably work for you.

If you dont care about 11 NBC, then it would be much easier. Many more and smaller antennas would work. But I think that 11 is doable in a small antenna at your location.
post #1745 of 3229
Located in Westminster , SC 29693, have DB2 amp and about 10' above rooftop. Receiving 100% on all UFH channels, however not receiving 13 or 7. Looking at EZ HD, HBU22 or CM 7694 as replacement. Would appreciate any thought. Txs
post #1746 of 3229
Thread Starter 
The EZ HD should be plenty....much, much better VHF Hi performance than the DB2.
post #1747 of 3229
Thread Starter 
Convenient Winegard Antenna Comparison Chart at Solid Signal
post #1748 of 3229
EV: WHBF returned to VHF-LO on Friday. The UHF Utubes will not pick it up, even 20 miles away, and I am about 28 miles. I tried the MANT 510 again. Even when outside at ground level, no RF4. I tried it again at a friends apartment on the 3rd floor. It will not lock in solid despite moving it all around & adjusting the dipoles.
I rate this one a dud. It did not work in Peoria,IL either, on a previous test.
post #1749 of 3229
Thread Starter 
I have no experience with VHF Lo digitial. Sounds like a nightmare.

Hollands posted a fantastic smallish 5 element yagi for a DIY project. You can mount the wires on carboard for a trial version. Its in The Official Antenna Topic! thread in the last couple of pages.
post #1750 of 3229
Quote:
Originally Posted by lashag View Post

Located in Westminster , SC 29693, have DB2 amp and about 10' above rooftop. Receiving 100% on all UFH channels, however not receiving 13 or 7. Looking at EZ HD, HBU22 or CM 7694 as replacement. Would appreciate any thought. Txs

Txs for the response. So the EZ HD of the three would be the best choice then? Is it entirely different that the RCA ANT751? Txs
post #1751 of 3229
Quote:
Originally Posted by EscapeVelocity View Post

I have no experience with VHF Lo digitial. Sounds like a nightmare.

One of the stations not far from me (KCWX) is going to be on RF5 when they go live in July. It'll be interesting to hear how many people will be able to pick it up at all, let alone with rabbit ears.
post #1752 of 3229
Thread Starter 
Quote:
Originally Posted by lashag View Post

Txs for the response. So the EZ HD of the three would be the best choice then? Is it entirely different that the RCA ANT751? Txs

Any of those 3 should work. The EZ HD should be plenty and is the smallest, however please not that its mounting position is not balanced and the cantilever action puts stress on the pole. If you have an iffy pole to mount it on, Id be wary.

The RCA ANT751 and the EZ HD are the same antenna as far as I can tell.
post #1753 of 3229
EV (or anyone else):
IDRick provided detailed measurements for the EZ-HD in posts #1643 and #1652.
Can someone compare to RCA ANT751 to see if there are any differences???

PS: What kind of roof is that??? Looks like metal???
post #1754 of 3229
Thread Starter 
Tin plated, alumnized painted, steel as far as I can gather.

I can take some reference point measurements on the RCA ANT751.
post #1755 of 3229
Thread Starter 
Here are a couple of DIY antenna suggestions from eham.net.

http://www.eham.net/forums/Elmers/223484

Quote:
Pull 64 inches of 18ga or heavier wire from your junque box and cut it at 16 inches from one end. Attach a length of RG-6 or similar to this point with the longer wire to the center pin, shorter wire to the shield. Pin the wire to a convenient wall or cabinet back as high as possible.

This will cover VHF-HI through UHF with a mostly omni pattern.

This site was referenced...

Quote:
How to Make a TV Antenna for HDTV

http://www.tvantennaplans.com/

This UHF Yagi looks great...

Quote:
A Cheap and EZ HDTV Antenna Project

www.wa5vjb.com/references/CheapYagi4HDTV.pdf
post #1756 of 3229
Thread Starter 
Here is a DIY VHF Hi Yagi...

HatTip Holl_ands who says...

Quote:
K6STI (FM Antenna Modeling and Yagi Optimizer) posted an optimized 75-ohm Hi-VHF
Yagi design on our local forum that provided moderate Gain (7.25-9.25 dBi), excellent
F/B (22++ dB) and F/R Ratios (22+ dB) across the ENTIRE Hi-VHF Band (Ch7-13):



Quote:
Channel 7–13 TV 5 Element Yagi

http://www.ham-radio.com/k6sti/vhftv.htm
post #1757 of 3229
Thread Starter 
Good atmospherics tonight, I did a rescan and picked up the UHF Savannah stations, Im thinking about mounting the CM 4221 opposite the AntennaCraft Gray Hoverman and putting another amp in and an A/B switch.
post #1758 of 3229
Thread Starter 
Here is a good page about how RF signals in the VHF Lo, VHF Hi, and UHF spectrum are affected by obstructions. Good stuff to know about to improve your chances of selecting a sweet spot.

http://www.hdtvprimer.com/ANTENNAS/siting.html
post #1759 of 3229
Thread Starter 
DIY Gray Hoverman talk, pics, measurements, designs, etc....

Quote:
post #1760 of 3229
Thread Starter 
I think I might use my variable attenuator to measure the signal to cliff gap, in order to get solid data on the relative performance of these antennas.
post #1761 of 3229
Quote:
Originally Posted by EscapeVelocity View Post

Here is a DIY VHF Hi Yagi...

HatTip Holl_ands who says...

On 19June, K6STI replaced Original 5-Element Swept Back Driver Yagi with RevA,
with small improvements in Gain and SWR:
http://www.ham-radio.com/k6sti/vhftv.htm

I updated 4nec2 analysis charts here:
www.imageevent.com/holl_ands/yagis
I did not need to change Folded Dipole Variant...it's still based on Original dimensions.
post #1762 of 3229
Quote:
Originally Posted by EscapeVelocity View Post

I think I might use my variable attenuator to measure the signal to cliff gap, in order to get solid data on the relative performance of these antennas.

Please do! That would very useful information! Thanks for posting all the pictures earlier. You have quite a collection of antennas!

Best,

Rick
post #1763 of 3229
Thread Starter 
I looked at my variable attenuator and it isnt marked except 0db and 20db on the dial. Do you know if these are linear voltage reductions or geometric exponential, etc?

ie Can I just place 19 equidistant marks along the dial and suppose +/- 1db ?
post #1764 of 3229
Good question, EV. I don't know if that would work with your variable attenuator. I personally use individual attenuators. I have 2-20dB's, 1-10dB, 1-6dB, 1-3dB, and 2-1dB.
post #1765 of 3229
Hey EV - don't mean to press ya', but when you gonna get to that 1880 clone review? A lot of people have been doing their darnedest to wait patiently for that.

Also, you really should consider doing some more testing with at least hi-VHF - since so many people here have had channels switch back to it, and are now looking for new antennas to deal with it.
post #1766 of 3229
Thread Starter 
Peter Putman, aka the HDTVexpert

Quote:


Got HDTV?

By Pete Putman, CTS and ISF • March, 2003

Home Theatre Magazine

http://www.hometheatermag.com/bootcamp/156/index.html
post #1767 of 3229
Thread Starter 
My problem Rammitinski is that not having possession of the Zenith DTT901, I dont have a device to measure the antennas against each others.
post #1768 of 3229
Quote:


In order from best to worst on channel 7

RCA ANT751 Log-Yagi VHF Hi with UHF Folded Dipole
AntennaCraft G1483 4 Bay Gray Hoverman
Antennas Direct ClearStream1 Convertible, Proprietary Loop with reflector
Channel Master 4220 2 bay Bowtie

Heh, not too surprising a result, the ANT751, being the only vhf-hi antenna of the group, should have outperformed the others by a large margin on channel 7. The AntennaCraft G1483 should have a negative net gain on vhf-hi channel 7.

Since you have the best un-bent-up example of the G1483, could you post the dimensions of it ?
For the elements, I would need center of wire to center of wire measurements of : stub length, length of the legs (Assuming all the legs and stubs are the same length, correct ?) approx wire gauge or diameter of elements, and the distance between the elements (feedpoint distance) and the reflector to element distance.
For the reflector rods, I would need the center of rod to center of rod measurements of each of the split reflector rods (I assume they are split) and the gap distance, the vertical distance each rod to each other, and the diameter of the rods (it looks like common 3/8 inch stuff).
Is the boom 3/4 inch square or 1 inch square ? I would need a rough discription of the boom to element standoffs, distance at bottom and top (it looks like a 1/2 inch aluminum strip about 1/16 inch thick ?) Thanks.

If the G1483 is true to form with most of rest of the GH colinear rod models, then an addition of a 31.5 inch NAROD (Not A Reflector Or Director) should give you positive net gain on channels 7, 8, 9. Position a (youll need 2) 31.5 inch straight wire of similiar diameter as the element, exactly .5 inches center of wire to center of wire parallel and above the top stubs and below the bottom stubs. The wire is electrically isolated from any other part of the antenna, ie its free floating with just plastic strips holding it in place. A picture is better than describing, so when finished the G1483 should look something like this:

The compromise with the NAROD vhf-hi versions is about a .5 to 1.5 dbi less uhf gain, mostly with a gain dip in the channel 40 region.
For channels 10, 11, 12, 13 use a 28.0 inch NAROD length.
For channels 8,9,10 and a good compromise overall, use a 30.25 inch NAROD length.
For additional gain on channels 7,8,9 but harder and trickier to install, you could put a NAROD reflector 12.5 inches behind the NAROD. (For channels 10 to 13, the distance is 10 inches. For channels 8, 9, 10 the distance is 11.5 inches)
post #1769 of 3229
@EscapeVelocity

I think I am going to buy the Channel Master 2016 and 50' of RG-6 since it is cheap and has good performance. I will try it first without any amplification. I have a few other questions however. What is the best way to mount it to the poll, which is actually not a poll at all but a tall 4x4 piece of wood. Can I mount it to the top without buying any extra hardware? If I have to I could buy the clearstream j-mount which might just mount to the very top of the wood. Or, is there something similar that would be cheaper. Also, we are going to be running a new electrical line for our new electric range and one for a new outlet for where the TV will go in the same conduit. I was thinking of running the coax cable for the tv through the same whole in the back of the house (Not in the conduit but it will run next to it). Will this affect the signal in anyway being so close to so much current?
post #1770 of 3229
Thread Starter 
Thanks, Ill try that 300 ohm!


Antenna Buying Tips

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