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post #601 of 613 Old 04-27-2014, 10:45 AM
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WRDE-LD is omni-directional, and serves Southern Delaware, Ocean City, MD, and Wildwood/Cape May NJ. It replaces WMGM-TV as the affiliate there, but doesn't overlap with WCAU. The overlap of WMGM-TV with WCAU was about to increase significantly (with the addition of WMGM-LD), so I'm sure Comcast/NBC views WRDE-LD as a better match for the network.
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post #602 of 613 Old 04-27-2014, 04:59 PM
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One difference in terms of cable coverage: Rehoboth Beach is part of the Salisbury, MD market and not Philadelphia/Wilmington, like WMGM-TV is. At least I'd think NBC owned and operated WCAU-TV has exercised their right to be the only NBC affiliate in the Philadelphia/Wilmington market.
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post #603 of 613 Old 04-28-2014, 06:52 AM
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It would still be nice to see the Philly and Baltimore channels carried on cable in Rehoboth and parts of the Eastern Shore. As many visitors and vacationers come from these areas. And I think they may have even used to carry a DC channel possibly.
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post #604 of 613 Old 05-03-2014, 11:19 AM
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I don't know where you stay in Rehoboth but at my condo we get both Baltimore and dc.
rjv
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post #605 of 613 Old 03-01-2017, 05:40 AM
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greenwood,de ota question

tvfool link
http://www.tvfool.com/?option=com_wr...e6a47ca247ba0f

have a 56' tower for 10 years now just took down to replace rotor and installed a new
cm-1160a antenna (replaced a CM3671) kept a winegard 8700 preamp quad rg-6 all the way.
my question is this the preamp i should go with or is there a better one to help get the stations out of philly?
i had a cm-7777 awhile back and cant remember why i took it out.
the stations in Baltimore come in fine and get the ones out of philly sometimes.
did not know if the closer stations could be overloading my antenna from the rear when aimed at the philly stations. and if i can do anything about it.
thanks,
Bill
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Last edited by DrDon; 03-01-2017 at 11:51 AM.
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post #606 of 613 Old 03-01-2017, 07:08 AM
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Link added. Thread's a little dead, so I'm going to link it in Technical.

Walking the fine line between jaw-dropping and a plain ol' yawn.
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post #607 of 613 Old 03-01-2017, 08:10 AM
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The TV Fool link is broken. It has "..." in the middle instead of characters.
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post #608 of 613 Old 03-01-2017, 08:35 AM
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post #609 of 613 Old 03-01-2017, 08:54 AM
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I assume the Philly stations are the ones at 86 miles and 10 degrees. All those stations are 2 edge or Tropo. There's nothing you can do to make those stations 100% reliable. "Tropo" means you're relying on temperature inversions to bend the signals down and extend their range. It's probably the same with the 2 edge signals.

If you're willing to go to extremes like I have:

http://www.aa6g.org/DTV/index.html

you may be able to increase the time you can receive those stations but it's unlikely they'll ever be 100%.

The CM-1160A is a very old antenna. Why would you replace your existing antenna with that one? It's not going to be better. You're next step in antennas would be separate UHF and VHF antennas.

The AP-8700 is an average preamp. Even if you go to extremes with a new preamp the most you'll pick up is about 2 dB.
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post #610 of 613 Old 03-01-2017, 08:58 AM
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Quote:
Originally Posted by ctdish View Post
Yeah, that seems to have fixed it. Sometimes, copying and pasting that link, if done incorrectly, results in a link that's been abbreviated with characters in the middle dropped.

If you went with a CM7777 you'd very likely overload either the amp or your tuner(s). Avoid!

What rotor are you using on that big antenna?
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post #611 of 613 Old 03-01-2017, 09:39 AM
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Calaveras
i figured it was going to be best i could do been like that since i put tower up.
i changed to the 1160a as i had a new one in the box the CM3671 was getting some age on it missing some elements. i will prob order a new antenna (not sure what yet) as i like to keep new one around with new amp and rotor.

ProjectSHO89
that's prob why i took out that amp.
think rotor is a CM-9521A had same one holding my cm3671 for about 7 years till it died
bolt fell out inside gearbox.

thanks for the help my girl grew up in philly asked me to try and get more channels from there had told her prob not going to happen.
Bill
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post #612 of 613 Old 03-01-2017, 11:52 AM
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Original link fixed. It was my bad. I copied the link from his PM instead of clicking on it and coping it from TVFool.

Apologies.

Walking the fine line between jaw-dropping and a plain ol' yawn.
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post #613 of 613 Old Today, 03:24 PM
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In Calaveras's tests of various Preamps and DistAmps, Antennas-Direct Clearstream JUICE had best resistance to OVERLOAD:
http://photos.imageevent.com/holl_an...028Nov2015.jpg
https://www.antennasdirect.com/juice.html
Also note that it includes an LTE Filter to suppress Strong Signals from NEARBY Towers.....if that is a issue for you....but NO FM Filter.

BTW: TV Signals are strong enough to cause problems with easy to overload [Original] CM7777.....hmmm, I don't think anyone has tested the NEW CM7777:
http://photos.imageevent.com/holl_an...20RevB.doc.pdf
http://photos.imageevent.com/holl_an...20RevM.xls.jpg

You ALSO have some EXTREMELY Strong FM Signals, whose 2nd Harmonics fall on top of Hi-VHF Band....and 4th Harmonics fall on top of part of UHF Band....and then there are the Intermods....so you should install an inexpensive FM FULL BAND FILTER (e.g also from A-D) on Preamp's Input to suppress that source of NOISE. Note that this will prevent reception of ANALOG Ch6:
https://www.antennasdirect.com/store...on_filter.html

================================================== ==============
I couldn't locate any GAIN Specs for long discontinued CM-1160 Series Antennas, but from picture on pg 6 in old C-M Catalog, it looks like a fairly healthy VHF Antenna....but FOR SURE will have MUCH less Gain than discontinued CM3671 or readily available W-G HD-8200 [now ON SALE at Solid Signal]:
http://www.starkelectronic.com/cmg2.htm [Discontinued CM-3671 Specs]
http://manuals.solidsignal.com/HD8200U_Specs.pdf [HD8200U Specs]

Clearly HD8200U would be "Best" Choice for a COMBO VHF/UHF Antenna.

However, what you probably need is a DUAL SPACE DIVERSITY UHF Antenna System, such as TWO Stacked CM4228HD's [or even better TWO DIY FF6's] for UHF....and HD8200 (or whatever) for VHF with a VHF/UHF Combiner [available from Antenna's Direct with DC PASS on UHF Port...unlike UVSJ devices]. In ADDITION to the (up to 2.5 dB) Combiner Gain, a Space Diversity System can typically provide ANOTHER 10 dB of Diversity Gain (under certain propagation conditions), such as when signals temporarily fade out on one Antenna, but remain usable on the other....and vice versa:
http://imageevent.com/holl_ands/stac...keduhfantennas [HHH for TWO CM4228HD's is near the top of my TO DO List]
http://imageevent.com/holl_ands/stac...allystackeduhf [HVH for TWO CM4228HD's is near the top of my TO DO List]
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