Rooftop antenna selection in Montreal NDG - Page 2 - Canadian TV, Computing and Home Theatre Forums

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post #16 of 21 (permalink) Old 2017-09-24, 09:11 PM Thread Starter
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Thank you all for your help. I pulled the trigger on the HD-7694P. My objectives have been fulfilled since I can now receive, amongst many others, TQ on CH24 and ABC on CH13. This could prove useful to other residents in the NDG area. It took a bit of trial and error to get the right balance between strong and week channels. I now have the antenna oriented 156Deg (true) and put a cheap preamp at the beginning of the signal path. I am reliably pulling in 28 virtual channels in all. A very happy camper indeed!
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post #17 of 21 (permalink) Old 2017-09-25, 11:00 AM
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Thank you for the report with the good news.
Quote:
It took a bit of trial and error to get the right balance between strong and week channels.
Yes, that is the secret.

I appreciate the feedback.

If you can not measure it, you can not improve it.
Lord Kelvin, 1883
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post #18 of 21 (permalink) Old 2017-09-26, 11:58 AM Thread Starter
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Reliability is good but it isn’t perfect especially on channels 13, 24 and 49 where signal quality rarely beats 30%. I am going to replace the first cable in the chain with a genuine shielded RG6 and the el-cheapo preamp I bought in Europe 20 years ago with the RCA that integrates an FM trap. Regarding the 4G interference, this map of nearby emitters seems to indicate I should benefit from an LTE filter also.
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post #19 of 21 (permalink) Old 2017-09-26, 04:18 PM
 
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OTA reception NDG, Montreal

Jimi00,

Be aware that a pre-amp from Europe could be UHF only and block VHF . . .

Bad idea to cascade 2 pre-amps . . .

What cheap pre-amp did you use as per your post #16 ?

If I were you, I'd aim the antenna at 135 degrees MAGNETIC, RF13 ABC is no big deal . . . And forget the LTE filter for now . . .
.
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post #20 of 21 (permalink) Old 2017-09-26, 05:03 PM Thread Starter
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I had no intention of cascading the preamps. Just replacing this cheap European unit: http://www.dune-electronic.com/DUNE_...RS&P4=36&P5=76
with the RCA TVPRAMP1R.
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post #21 of 21 (permalink) Old 2017-10-02, 03:24 PM Thread Starter
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Probably the last heads up on this topic. The RCA preamp, along with the RG6 cable have arrived. They make enough of a difference for me to be able to receive almost any channel in a 70 mile radius. I have tried the preamp with the FM trap on or off, and it does make a significant difference; thanks for suggesting it. The best compromise, in terms of antenna orientation, was achieved at 200º Magn, even though it doesn’t seem very logical looking at the tvfool report.
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