Creating Home Channel network

[richardh7794]

I have a question using TV outputs. I have a 322 and 522 receivers. I am trying to develop a network so all my teenagers can be happy with channel selections. I have several UHF controllers used to switch TV remotely. Anyway I have combined TV outputs 1 and two from both receivers and used diplexers to merge onto the cable. Problem is interference between TV 1 on the receivers... using out 3 on 1 and 4 on the other. Problem I have is interference on channel 3 from tuner 2. Just wondering if anyone has tried doing this at all... and their success.

Richard

[Richard King]

Welcome to DBSTalk.com. Channels 3 & 4 are too close together to do that. You will get the interference that you are seeing. What you need to do is to modulate one of the outputs to a higher channel using the line output from one of the receivers and an external modulator.

[richardh7794]

I appreciate your feed back I was wondering about that .... shall go look around for a good modulator!!!

Richard

[buckyp]

I have done something similar. The 522 will let you pick a wide array of output channels. I used channel 75 for the 522 and channel 3 for my old receiver. It works great! Tried adding another on channel 4, but got a lot of interference. Dont have a 322 so dont know if you can pick your channel on that one.

[Chris Freeland]

Try using a channel 3 signal combiner, cheaper then a external modulator and should take care of the problem.

[WhiteForMe]

TV1 is used for your local TV. If your combining TV outputs for other rooms, it should be TV2's. That way you change channels from the other rooms with the UHF remotes. Not sure about 322, but I know you can choose between channels 21-69 and cable 73-125 on the 522 TV2. So theres allot of output channels to choose from. The only bad thing is, RF outputs are Mono, Not stereo. Anyway if you have your manual for the 522. Check out chapter two, starting at Pg25. Nice info there on setting it up.. If you dont happen to have the manual, check.

http://www.dishnetwork.com/content/products/userguides_manuals/receivers/522/index.shtml


http://www.dishnetwork.com/content/products/userguides_manuals/receivers/322/index.shtml

[Chris Freeland]

TV1 is used for your local TV. If your combining TV outputs for other rooms, it should be TV2's. That way you change channels from the other rooms with the UHF remotes. Not sure about 322, but I know you can choose between channels 21-69 and cable 73-125 on the 522 TV2. So theres allot of output channels to choose from. The only bad thing is, RF outputs are Mono, Not stereo. Anyway if you have your manual for the 522. Check out chapter two, starting at Pg25. Nice info there on setting it up.. If you dont happen to have the manual, check.

http://www.dishnetwork.com/content/products/userguides_manuals/receivers/522/index.shtml


http://www.dishnetwork.com/content/products/userguides_manuals/receivers/322/index.shtml

I think what he is trying to do is distribute all 4 tuners of his 2 receivers to all TV's in his home, he can do this by using a channel 3 or 4 signal combiner on tuner 1 of one or both of those receivers and the built in uhf/cable modulator on tuner 2 of each of his receivers.

[richardh7794]

I am trying to add all 4 outputs onto my home cable. I am going to try locating a video modulator for my 322 box. I can view my channls 3 output of my 522 and also broadcast tuner 2 on channel 60. On my 322 I am broadcasting on tuner to on 74 i believe and just need to remodulate the video 1 output on some UHF channel.

Richard

[Chris Freeland]

I am trying to add all 4 outputs onto my home cable. I am going to try locating a video modulator for my 322 box. I can view my channls 3 output of my 522 and also broadcast tuner 2 on channel 60. On my 322 I am broadcasting on tuner to on 74 i believe and just need to remodulate the video 1 output on some UHF channel.

Richard

If their are no ota channel 4 in your area coming in from an ota antenna connected to your home network, you can use a chanel 4 signal combiner on your RF 1 output of your 322 and use channel 4 without it interfearing with adjacent channels. A channel 3 or 4 signal combiner can be purchased for about $20 each, which is cheaper then most uhf modulators, and it will work just as good.

[joblo]

If their are no ota channel 4 in your area coming in from an ota antenna connected to your home network, you can use a chanel 4 signal combiner on your RF 1 output of your 322 and use channel 4 without it interfearing with adjacent channels. A channel 3 or 4 signal combiner can be purchased for about $20 each, which is cheaper then most uhf modulators, and it will work just as good.

Sorry, I disagree. Most channel 3/4 modulators in consumer electronics devices as well as most standalone consumer-grade modulators are double-sideband devices, meaning there is a lower sideband color and audio carrier which is smack in the middle of the lower adjacent channel. The $20 signal combiner can attenuate this interference but it's difficult to eliminate it entirely without much more expensive filtering.

I suppose it depends on how clean a signal you want, but I prefer to keep my modulated signals on non-adjacent channels.

Note that this interference problem is not reciprocal. The channel 4 modulator will cause interference on channel 3, but the channel 3 modulator will not generate objectionable interference on channel 4 if a suitable combiner is used. You can mix a modulated 3 with an OTA or cable 4, because, unlike the modulated 4, the OTA or cable signal does not have lower sideband carriers.

[UHF]

If their are no ota channel 4 in your area coming in from an ota antenna connected to your home network, you can use a chanel 4 signal combiner on your RF 1 output of your 322 and use channel 4 without it interfearing with adjacent channels. A channel 3 or 4 signal combiner can be purchased for about $20 each, which is cheaper then most uhf modulators, and it will work just as good.

Do it right, use a UHF modulator. They start at $25 and up. Check Radioshack.com, I got two from them for $25 a piece on sale a couple years back, I think regular price is $49. Lots of other places will have them also. I currently have two Dish channels and a third source all combined with OTA on one cable using three modulators, a three way combiner(splitter), and a directional tap and it works like a charm.

[James Long]

I've used CH-3 and CH-4 insert filters without a problem. The CH-3/4 modulators on my E* receivers are clean enough.

JL

[Chris Freeland]

I have used a channel 4 signal combiner and have a channel 3 coming in ota and have had no interference, channel r4 blended in quite nicely. I do agree however if you can find a UHF modulator for $25, that is the better way to go, modulators were not that cheap when I was doing my home network several years ago.