Hi Atinuator, an attenuator is a device that lowers the signal strength across all the channels at once, not single channels. There are filters, traps, etc. that can do that, but frankly from 25 miles outside of Toronto you won't have any problems.

Update on my install:

Got the CM4221 on the roof top at the crest (at least 50 feet high) with a rotor plus a 7775 pre amp fed to a splitter to 3 tvs. Didn't need the line distributor amp (with it on, some channels become pixelized(?). Couldn't possibly be happier. Unfortunately for the wife, ended up spending many, many hours looking for that 'sweet spot' setting. Haven't found it yet.

Thanks again for the folks here who talked me into getting a rotor. As of this post, we are getting snow fall, and I've lost a few channels form the CN tower when I point to Buffalo, but not a problem pointing back to Toronto and gain them back. Did loose MyHD tonight due to the weather.

Couldn't possibly be happier.

Very happy to hear things worked out for you :p

All the best!

sc I do not believe you have overload.Try looking at analog 19 tvo.CBLT-dt is using the same transmitting antenna.IF you see ghosting then its multipath reception causing your problems...

I think you are right it is multipath reception issue. I moved the antenna 5' and CBLT reception jumped back to 97%.

My Panasonic TH42-PX60U ATSC tuner is acting funny. When I scan for channels it detected both analog channel 57 and digital 57-1 (CityTV) but when I tuned to the digital channel I got nothing, just a blank screen. The analog channel signal is fairly strong and watchable with no ghost or noise.

Also the TV detected two 41-1 Global stations, one channel display a blank screen and the other is perfectly fine. I tried to deleted it from the channel list but it shows up when I surf channels.

I suspect the problem is with the ATSC tuner firmware. Is there other Panasonic owner having the similar issues?

Are you getting a stable signal on the DT station?

I can't tell since the tuner is not displaying any information at all. The tuner will automatically skipped to first channel of the channel list after short wait. I can only assume it received some signal or else the channel is not discovered during scan.

Usually for weak channel I can still display the signal quality meter with a pixelated picture. If the signal quality degrade further it will display poor signal quality with no picture. It will display channel not available if I pulled the antenna.

Hey, new to this: I've been reading alot of threads and just want opinions on this setup.

- Location Bovaird\Airport
- Tripod mounted antenna
- either old style CM4221 or CM4228 (can't decide)
- Phillips rotor for tuning.
- lines to 2 Samsung HDTV's with ASTC tuners (oldest one is 2 years old)

I'm having a tough time deciding on the antenna - I have access to both, so I will probably sell the other one. Any opinions would help. I connected the 4221 and only get 7 HD channels at this time from my living room - currently pointed SW (I know should be more SE). And that is with a dollar store cable (want to go minimum RG6, but I hear RG11 is good?) Also, want to resist using an amplifier, but if it will help I'll do it.

Hi Totalpkg and welcome here - unless you are in a deepest fringe area (you are not) running a very long (>100ft) length of coax from your antenna to your receiver you will notice very little difference between RG6 and RG11 cabling where you are, and RG11 is much more expensive and heavier.

Check through the thread and you will see many posts about both of the CM antennas you mentioned to help you make your choice. Also if they are an original model CM4221 and CM4228 you should have no problem selling one of them in our For Sale forum here at DHC. ;)

ATSC tuner is acting funny

i to have a problem with 41-1 Global, one software on my pc (wintv) shows it fine another (watchhdtv) shows a blank screen.

See this thread for your answers, lubmar: http://www.digitalhome.ca/forum/showthread.php?t=85061

First I would like to thank everyone in these forums they have been a huge help.
I have just used the link from this forum.
How to use 2150.com to show OTA channels in your area
And having done some searching for my lat and long I know have the compass headings and when I get my rotator back from channelmaster I am going to try the settings will keep you posted.
Hope everyone has a wonderful Christmas.



--------------------------------------------------------------------------------------------------------------------------------
winegard ss 2000 on a 30 foot tower with a channelmaster 9521 rotator going directly into my TV

Hi,
If you aim towards the C.N. Tower, you should be able to receive most stations it
has. Indoors in Brampton with a loop(clipped with the semi-circles extended), I receive

CBC 5-1
CHCH 11-1
CBC 25-1
WNLO 23-1
OMNI 44-1
OMNI 64-1
CITY 57-1
GLOBAL 41-1
SUNTV 66-1

With a homemade indoor Bow-tie antenna aimed at Buffalo, I receive

23-1(WNLO)
2-1,2-2(WGRZ)
7-1(WKBW) and 7-2.

Of course I use an amp (a really cheap one from Wal-Mart) to send it through the house to my receiver,
(a CE Labs HD100aq I picked up for $20 on E-bay). All you need is a good line of sight, some consistent reflections, some patience, dilligence and a little luck. Now if only I can pick up some of those other stations (CFTO,WUTV,WIVB,WNED etc. I may have to use tuned stubs for some of these stations.

Ive had a cheap D i g i w a v e $45 antenna which was a knockoff of the CM4221. With this antenna i was getting all the digital channels apart from NBC, Fox and MyTV. In an attempt to get these three channels i went out and just purchased a CM4228HD hoping that since its 8 bay and wider maybe i would be able to pull in some of these Buffalo channels. Well, after aiming the hell out of this antenna the end result is i end up losing #60+ Toronto channels and did not gain a single one of the three channels i was originally missing! What gives? i thought this antenna (well the original one at least) was supposed to be badass. I live in the Mississauga (Derry and Ninth Line area) was wondering if those living in the vicinity had any luck with this antenna? Or should i have looked into a Delhi or CM 4221 instead.

Happy holidays everyone,

I live just north of erin mills town centre. I have a CM4221 inside a second story window connected to my tv with about 75' of RG6. Here are my results:

2.1 - low 70s
2.2 - low 70s
4.1 - low 70s
5.1 - 100
7.1 - low 70s
7.2 - low 70s
9.1 - low 70s
11.1 - 45-65 (occasionally drops out)
17.1 - 95-100
17.2 - 95-100
17.3 - 95-100
23.1 - 100
25.1 - 95-100
29.1 - low 70s
29.2 - low 70s
36.1 - do not pick up
41.1 - 75-80
44.1 - 75-80
49.1/49.2 - do not pick up
57.1 - 45-60 (occasionally drops out)
64.1 - 45-70 (occasionally drops out)
66.1 - 45-55 (occasionally drops out)

I'm very pleased with the results as I get most of the channels I wanted consistently especially given our weather the last few days (abc, nbc, fox, cbs, cbc, global, ctv). My question is that should I opt for a cm7777 pre-amp with the hopes of stabilizing the channels that drop out occasionally and maybe even pick up 49.1 or should I be content with the current set-up as I only have one antenna pointed?

Thanks

I also tried a real 4228 and it was worse than my 4221. I was losing some Toronto channels which I got easily with the 4221 before.

4221 is a good antenna if you're not too far away, the catchment angle is pretty wide.

If you want to give it the best chance, get a preamp instead (if possible, not digi-wave:) )

I live just north of erin mills town centre. I have a CM4221 inside a second story window connected to my TV with about 75' of RG6.
First of all the best thing you can do is get the your antenna mounted up and outdoors this will give the best chance of receiving the furthest stations, wait to the weather improves I would hate to see you have an accident.

Once you have it there you can determine just what can receive, if it is possible get a shorter length of RG-6 and move your TV to the second floor. Connect your antenna to the TV and rescan to see what you can receive. This should give the best results, if you see a real improvement in your reception and you get more channels. Then a good preamp with low noise will help you for sure, it will compensate for long line losses. If you want to boost the good signals, and distribute them to other TV’s it will make job much easier, but won’t boost the signals you can’t receive.

If mounting it outdoors is not practical at this time just try it indoors to see if it improves the signal strenght of the weaker stations. I have heard of others in your area that have improved the signal strength with long lines distrubuted throughout their homes.

Merry Christmas

Machinehead the 4228 is more directional and its gain is lower above channel 60 then 4 bay 4221.If its pointing at Buffalo you may loose toronto but buffalo should be better with 4228 if you have a clear view toward Buffalo.I am using 2 antennas ,1 for each city.All the buffalo come in great for me near Winston and Derry.

Hello everyone... This has probably been answered already, but could someone tell me if HGTV is available OTA? I just got a channel master 4221 and from inside the upstairs bedroom I get the following:

WUTV-HD
WUTV-SD
CHCH-DT
CBLT-DT
CBLFT-D
WNLO-HD
WGRZ-HD
WGRZ-W+
CTS HD
WKBW-HD
WNGS
WIVB-HD
CFTO HD
WNED-HD
WNED-SD
WNED-Th
OMNI 2
City HD
OMNI 1
CIII-DT
CKXT-DT

Welcome here - HGTV is a specialty channel that is not broadcast OTA.