Global Ottawa DTV Transition - Aug. 16, 2011 - update in Post #331 - Page 8 - Canadian TV, Computing and Home Theatre Forums

bjmills · 2011-08-17, 09:05 AM

Charettepa: I'm in south Kanata (Bridlewood) with a CM 4221 in my attic, pointed at HC. I have a powered splitter to split the signal to two TVs. Global seems to come in fine for me. Knock wood.

charettepa · 2011-08-17, 09:10 AM

@ oldsparks

thanks i will try it after work

just to clarify
on my cm7777 i am using the seperate inputs so uhf anf vhf dont interfere with eachother

i have a vhf antenna pointed to cf plugged in to the vhf only side
and i have the fm trap enabled

that being said
i dont think my vhf antenna is for vhf lo

so i will try building the dipole
i wanted to earlier but did not know the lengths

retropc · 2011-08-17, 09:10 AM

I don't know if Global made some modifications yesterday (the station status thread suggests that they might have been doing so), but after rescanning yesterday evening to get TVO, 6.1 was coming in nice and clear as well. Didn't spend much time watching last night, but quality on 6.1 seemed pretty good (albeit with a couple of freezes).

Let's hope things stay that way!

paulbelanger · 2011-08-17, 09:13 AM

As I noted earlier, I'm in Beaverbrook (Kanata North) with an omnidirectional MS-1000 on the roof and a CM7778 pre-amp. I get Global at about 61% signal strength (compare to 82% for CBOT and 58% for Omni1). There is occasional pixellation but for the most part the signal is very good.

tvfool is http://www.tvfool.com/?option=com_wr...3e472327916ce3

retropc · 2011-08-17, 09:17 AM

As of last night was getting a pretty good signal for 6.1 using an attic-mounted CM4221HD pointed at HC. Tunney's Pasture area, almost directly between the two towers (176° separation), so picking up the CF stations on the back side of the UHF antenna.

old sparks · 2011-08-17, 09:18 AM

charettepa;

Channel 6 is right next door to the FM radio band. Just a shot in the dark, but try it without the FM trap, or completely bypassing the VHF preamp (si je comprends bien votre configuration).

OTAJuncqui · 2011-08-17, 09:20 AM

People are asking about antenna set-ups and I posted #1414 but this AM I thought I'd try out my baby.
http://www.flickr.com/photos/6603455...n/photostream/

Happy to report it does the job too. (almost regardless of orientation)

charettepa · 2011-08-17, 09:24 AM

Quote:

Originally Posted by old sparks

charettepa;

Channel 6 is right next door to the FM radio band. Just a shot in the dark, but try it without the FM trap, or completely bypassing the VHF preamp (si je comprends bien votre configuration).

unless im explaining it backwards
the fm trap is in use (as in do not allow fm)
its set to trap in
if i set it to trap out channel 6 has 0% instead of 10-20

i will try without the preamp all together and go straight to the tv

paulbelanger · 2011-08-17, 09:43 AM

I think what he's saying is that since ch6 is adjacent to the FM band, it's possible that your FM trap is also blocking the ch6 signal. It all depends on the pass-band of your trap. It's worth trying with the trap off, just to see if it makes a difference.

gmd · 2011-08-17, 09:51 AM

Recently moved within same neighbourhood.

All was up and ready for the move of Global and TVO. TVO is nice and crisp. Although 66-1 might be coming in too strong (?!), I haven't seen 6-1 (went from snow in analog to nothing - nice); maybe it's time to find an FM trap in one of those boxes, and later add some attenuators.

Are analog 34 and 40 at reduced power during the transition? Depending where the antenna is aiming, CKWS (36 and 26) and Global (2 from Bancroft) have less snow than V on 34!

-gmd

old sparks · 2011-08-17, 09:55 AM

Thanks Paul - that was my original thought.

However, it's equally possible that FM radio stations are overloading his preamp and system. Thus, he could try completely bypassing the preamp to see if that works. I think the CM7777 has considerable gain on VHF...

flavoie · 2011-08-17, 09:56 AM

gmd, not longer in Blackburn Hamlet ? whereabouts are you now ?

charettepa · 2011-08-17, 10:07 AM

thanks guys
i will try everything after work

1- fm trap off (got 0% with that before but will try again)
2- bypass the preamp go straight to tv
3- built a channel6 dipole direct to tv
4- same as 3 but on preamp

i will post the results

Yroc · 2011-08-17, 10:10 AM

Getting 6.1 with pixels on an attic 4221HD (not good enough to watch).

flavoie · 2011-08-17, 10:11 AM

charettepa, I have not received a call back from Global. And I am still not seeing the Global 6.1 channel when I rescan...
my setup again with more details:
VIP-302SR VHF HI&LO antenna in the attic which has a 4dB gain on VHF LO, 10 feet Quad shield RG6 coax to a low loss surge arrestor/grounding block, then about 10-15 feet Quad shield RG6 coax to the cm7777 preamp on the roof on the VHF port. My FM trap is ON inputs set to Separates. My other antenna is the 4228hd on the roof. My tvfool is under my homepage under my profile.

I have another friend in Nepean(Manordale) and he's getting Global with a cm7777 (default settings which should be FM trap ON, Combined) and a 4-bay clone in the attic pointed at HC.

2011-08-17, 09:18 AM	#111
old sparks Join Date: Nov 2005 Location: Ottawa Posts: 173	charettepa; Channel 6 is right next door to the FM radio band. Just a shot in the dark, but try it without the FM trap, or completely bypassing the VHF preamp (si je comprends bien votre configuration). __________________ http://www.tvfool.com/?option=com_wr...e7793e37d4ef93

2011-08-17, 09:51 AM	#115
gmd Join Date: Aug 2002 Location: Gloucester, ON Posts: 786	Recently moved within same neighbourhood. All was up and ready for the move of Global and TVO. TVO is nice and crisp. Although 66-1 might be coming in too strong (?!), I haven't seen 6-1 (went from snow in analog to nothing - nice); maybe it's time to find an FM trap in one of those boxes, and later add some attenuators. Are analog 34 and 40 at reduced power during the transition? Depending where the antenna is aiming, CKWS (36 and 26) and Global (2 from Bancroft) have less snow than V on 34! -gmd __________________ SC: 8-Feb-02>21-Jul-09 (TFO) \| EVu: 23-Jan to 03-Feb-07, back 20-Jun-09 Bell, French packages, pls! Long live OTA!

2011-08-17, 09:55 AM	#116
old sparks Join Date: Nov 2005 Location: Ottawa Posts: 173	Thanks Paul - that was my original thought. However, it's equally possible that FM radio stations are overloading his preamp and system. Thus, he could try completely bypassing the preamp to see if that works. I think the CM7777 has considerable gain on VHF... __________________ http://www.tvfool.com/?option=com_wr...e7793e37d4ef93

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2011-08-17, 09:05 AM	#106
bjmills Join Date: Dec 2005 Location: Ottawa, Ontario, Canada Posts: 19	Charettepa: I'm in south Kanata (Bridlewood) with a CM 4221 in my attic, pointed at HC. I have a powered splitter to split the signal to two TVs. Global seems to come in fine for me. Knock wood.

2011-08-17, 09:10 AM	#107
charettepa Join Date: Jul 2011 Location: Orleans, ON \|\|\|\|\|\|\|\| CM4228 + VIP302 + CM7777 Posts: 177	@ oldsparks thanks i will try it after work just to clarify on my cm7777 i am using the seperate inputs so uhf anf vhf dont interfere with eachother i have a vhf antenna pointed to cf plugged in to the vhf only side and i have the fm trap enabled that being said i dont think my vhf antenna is for vhf lo so i will try building the dipole i wanted to earlier but did not know the lengths

2011-08-17, 09:10 AM	#108
retropc Rookie Join Date: Aug 2011 Posts: 3	I don't know if Global made some modifications yesterday (the station status thread suggests that they might have been doing so), but after rescanning yesterday evening to get TVO, 6.1 was coming in nice and clear as well. Didn't spend much time watching last night, but quality on 6.1 seemed pretty good (albeit with a couple of freezes). Let's hope things stay that way!

2011-08-17, 09:13 AM	#109
paulbelanger Join Date: Sep 2010 Location: Kanata North (Beaverbrook) Posts: 52	As I noted earlier, I'm in Beaverbrook (Kanata North) with an omnidirectional MS-1000 on the roof and a CM7778 pre-amp. I get Global at about 61% signal strength (compare to 82% for CBOT and 58% for Omni1). There is occasional pixellation but for the most part the signal is very good. tvfool is http://www.tvfool.com/?option=com_wr...3e472327916ce3

2011-08-17, 09:17 AM	#110
retropc Rookie Join Date: Aug 2011 Posts: 3	As of last night was getting a pretty good signal for 6.1 using an attic-mounted CM4221HD pointed at HC. Tunney's Pasture area, almost directly between the two towers (176° separation), so picking up the CF stations on the back side of the UHF antenna.

2011-08-17, 09:20 AM	#112
OTAJuncqui Join Date: Jul 2010 Location: Nepean, ON Posts: 334	People are asking about antenna set-ups and I posted #1414 but this AM I thought I'd try out my baby. http://www.flickr.com/photos/6603455...n/photostream/ Happy to report it does the job too. (almost regardless of orientation)

2011-08-17, 09:43 AM	#114
paulbelanger Join Date: Sep 2010 Location: Kanata North (Beaverbrook) Posts: 52	I think what he's saying is that since ch6 is adjacent to the FM band, it's possible that your FM trap is also blocking the ch6 signal. It all depends on the pass-band of your trap. It's worth trying with the trap off, just to see if it makes a difference.

2011-08-17, 09:56 AM	#117
flavoie Join Date: May 2007 Location: Orleans, ON Posts: 1,236	gmd, not longer in Blackburn Hamlet ? whereabouts are you now ?

2011-08-17, 10:07 AM	#118
charettepa Join Date: Jul 2011 Location: Orleans, ON \|\|\|\|\|\|\|\| CM4228 + VIP302 + CM7777 Posts: 177	thanks guys i will try everything after work 1- fm trap off (got 0% with that before but will try again) 2- bypass the preamp go straight to tv 3- built a channel6 dipole direct to tv 4- same as 3 but on preamp i will post the results

2011-08-17, 10:10 AM	#119
Yroc Join Date: Jan 2011 Location: Ottawa (Overbrook) Posts: 153	Getting 6.1 with pixels on an attic 4221HD (not good enough to watch).

2011-08-17, 10:11 AM	#120
flavoie Join Date: May 2007 Location: Orleans, ON Posts: 1,236	charettepa, I have not received a call back from Global. And I am still not seeing the Global 6.1 channel when I rescan... my setup again with more details: VIP-302SR VHF HI&LO antenna in the attic which has a 4dB gain on VHF LO, 10 feet Quad shield RG6 coax to a low loss surge arrestor/grounding block, then about 10-15 feet Quad shield RG6 coax to the cm7777 preamp on the roof on the VHF port. My FM trap is ON inputs set to Separates. My other antenna is the 4228hd on the roof. My tvfool is under my homepage under my profile. I have another friend in Nepean(Manordale) and he's getting Global with a cm7777 (default settings which should be FM trap ON, Combined) and a 4-bay clone in the attic pointed at HC.