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Thread: WJAR 10.3 in Natick, MA
- 07-23-2008 09:19 AM #1
WJAR 10.3 in Natick, MA
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Hi
Before I go out and spend $$$ to get WJAR-10.3 (RTN Feed), has anyone been able to get this digital station in Natick/Framingham area,MA?
Antennaweb says their transmitter is 191 degrees away 30.3 miles.
I was going to buy a CM4228 and pre-amp from Stark Electronics and point it to see if I could get it. The guy there said it should work and not to get a 'too good' pre-amp, since there are alot of stations in the Framingham area that can cause 'noise' to the preamp.
Anyone in the Boston area Digital DX'ing Rhode Island stations?
- 07-23-2008 09:19 AM # ADS
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- 07-23-2008 12:05 PM #2
I'm only taking an educated guess from across the country, but ...
According to TVfool.com, and comparing to the signal levels I'm working with out here...
I'd say a modest outdoor antenna at 15 feet, aimed about 181º magnetic (due south on your compass), should do it, without an amplifier.
Of course, if you have local bumps, building, or other obstructions, your mileage may vary.
I can't see rabbit ears getting the job done, not 24/7.
What have you been trying so far?
...and if you did want to spend a little money, ya might check with our FTA department, as
those shows
are available over free satellite
- 07-23-2008 01:42 PM #3
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Well, I tried an indoor hdtv antenna, and a terk-hd55.
The indoor one got me the analog WJAR on 10, at about 60% strength sometimes.
The Terk looks like a pipe and I could not get how to point it at 191
MY HOUSE IS SURROUNDED BY TREES, 40+ FOOT PINES, WHICH IS WHAT MAKES IT MORE DIFFICULT. So, if I plce an antenna cm 2442 on top of the house, 30+ feet, facing 181, It should be easy to get?
Thanks!
And, about FTA satellite. I spent $200+ to get a dish to rcv G10 to get the rtn feeds, but, as I said, I am in the middle of the forest here, and could not get almost any signal strength. If I can get 10.3, I get RTN and my TivoHD can rcv it and record it! That's why I am going for OTA here
- 08-08-2008 04:02 PM #4
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Finally bought the cm-4228 and 777 preamp.
Tried it with and without the preamp. In slow increments with a signal meter.
WJAR 10.3 is 30.3 friggin miles away line of sight.
No go, no nothing, 0 strength, or just noise strength
I am telling you, if on Feb, 2009 you can't get a picture 30 miles from a transmitter, we are in serious TV troubles!
1/2 the people in the country will not be able to watch television without cable/sat anymore!!1
I smell a debacle coming on
- 08-20-2008 09:26 AM #5
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Update!!!!!
I tried this again, realized my compass setting was off 180 degrees...duh
With my old antenna, a 4 bay channel master, I pointed at Boston xmitters, got 85-95 sgnal strength on all Boston channels.
Reinstalled the new 8-bay CM antenna, pointed it at Providence, the Boston stuff should have gone away, but it still gets 80-90
I now get the WJAR digital channels 10.1 and 10.2 at 61-72 and Channel 6.1 and 6.2 at 61-70. The bad news is 10.3, RTN is not on the air, technical difficulties and won't be on until October.
It does fluctuate alot, and the signal meter on my tivo shows about 62 needed for a clean picture, so sometimes it pixellates a bit. It is definitely pointing thru trees so winter will be better.
I can also raise it another 6 feet, think that will help? It will still go thru the trees.
So are they broadcasting digital low power now? And will raise it in February? I read that somewhere. Cause if they are, that would explain the fluctuations and lower signal.
- 08-20-2008 01:49 PM #6
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The FCC's records for WJAR-DT show the station's transmitter is operating at 974 kW. They've applied to take it up to maximum power -- 1,000 kW -- by June 1, 2009. It's not really a significant increase. However, they will be raising their digital transmission antenna higher on the tower after they shut down the analog transmitter in February and remove its antenna. You may well see better signal strength once the station completes this work.
- 08-21-2008 09:32 AM #7
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I looked it all up and see that if I raise my antenna 7 feet, I get appro 1.7 db more signal
I will try that too......
Also, why does it fluctuate so much, sometimes down to 0 for 2-5 seconds? Do trees block it as bad as they do satellite signals? I ask because my antenna is pointing straight at huge trees.
- 08-21-2008 11:57 AM #8
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Given your part of the country, I'm betting they're big old oak trees.Also, why does it fluctuate so much, sometimes down to 0 for 2-5 seconds? Do trees block it as bad as they do satellite signals? I ask because my antenna is pointing straight at huge trees.
A signal meter behaving in this way is detecting short-delay multipath interference. In UHF reception (10.x is actually broadcasting on channel 51), trees are a notorious source for this interference, particularly in the presence of a breeze or wind. Light breezes rustle the leaves, while wind moves entire branches. Either way, you get temporary interruptions in the signal. Some say this issue is worse with deciduous (leafy) trees than it is with coniferous ("evergreen") species.
Tilting the antenna a few degrees toward the sky *might* help capture signals from above the trees, but your mileage will probably vary, and this isn't easy to do with a 4228.
- 08-21-2008 09:16 PM #9
Those kind of signal fluctuations usually indicate multipath. The 91-XG is usually a better antenna choice in a moderate to extreme multipath environment. Bowtie antennas have excellent signal gathering ability; but don't tolerate excessive multipath well.
- 08-25-2008 10:51 AM #10
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Yes, huge oak trees, 50+ feet. I bought a mount that I think could be pointed up
for testing. If it works, I will jury rig a better mount. What degree facing up should I start? And how far is too far? Or is it all try it and look at signal strength with each movement?
Barring that, I will try a 91XG..Is that a winegard?

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