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19"rack mountable CATV distribution???
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| Topic: | 19"rack mountable CATV distribution??? This thread has 21 replies. Displaying posts 1 through 15. |
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| Post 1 made on April 19, 2008 at 13:01 |
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Joined: Posts: | June 2005 1,312 |
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Why is this so seemingly impossible to find??? Wanted:Rack mount CATV amp + splitter. Requirements: 1. MUST be bi-directional 2. MUST be rated up to 1000 MHz 3. Be a good solution for 8, 16, 24+ port systems. 4. Ideally occupy 1U (2U max) 5. Be a quality product. Amp and splitter may be separate or all-in-one. If amp is separate, it MAY be non-rackable if required. I've looked at Blonder Tongue:
Their dist amp solutions, aren't bi-directional.... expect for one model (ARP) which isn't able to pass 1000MHz. They have a rack mount splitter, which is very nice, but only available with 24+ ports. Obviously, several mfgs make rackmount-type products for their low-voltage enclosures, but they aren't 19" We are moving away from enclosures. Obviously, we could cram any old CATV solution into a MA rack, but we want it to look great and be serviceable. The racks we want to use are the EWR and/or DWR wall mount racks. They aren't as nice looking as your standard, white, in-wall enclosure. So in order for us to convince builders to let us put these in...we want them to be awesome.
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...couple a thumb tacks and a stick of double sided tape should hold this baby up... |
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| Post 2 made on April 19, 2008 at 13:37 |
Ernie Bornn-Gilman Yes, That Ernie! |
Joined: Posts: | December 2001 30,104 |
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Hey, why don't you call the local calbe company, ask to speak with engineering, and ask them what they recommend? You want to distribute their signal, right? That's what I did when cable first came in. These guys were happy to share the info. It sounds like you're asking for standard old analog cable head-end gear, except the old stuff didn't go much above 750 mHz (I think). You know, three racks of individual channel modulators, each at least $300, with signal mixing equipment and amplifiers that can take the resulting RF signal an amplify it to the point where you use a light bulb as a test load. Maybe I exaggerate, but that's the kind of stuff it sounds like you want. Maybe Pico-Macom and Qintar still carry that. If not, try Pace Electronics, who are not, I think, the makers of the dreaded Pace cable boxes. If they are, well, their other stuff is good. Try good old ebay! None of it is made by any of the companies we want to protect, so you won't be attacked if we find out you did it. On April 19, 2008 at 14:01, fluid-druid said...
Why is this so seemingly impossible to find??? Wanted:Rack mount CATV amp + splitter. It's impossible to find because the splitters in a cable system are out on the poles. In the headend they use splitters backwards to combine channels. They have a rack mount splitter, which is very nice, but only available with 24+ ports. It's a head-end product, so it's set to combine LOTS of channels. Twenty four modulators and one splitter/mixer; that's 25U, a nice size for a rack. The last antenna system I did worth talking about here had more than four hundred TVs and 60 FM locations. Once I mixed the channels together for the same level on each channel, I used 53 dB amplifiers, then went to directional line taps; those outputs went to a separate level of directional line taps, which went out to final runs where four to six TVs were daisy-chained, again with directional line taps. This worked quite well, but it wasn't bi-directional. And none of it was rack-mount. It just wasn't available for distribution systems.
So in order for us to convince builders to let us put these in...we want them to be awesome. That sounds pretty difficult because the items manufactured for rack mounting are intended for technical looking rooms, just function and clear labeling, nothing more.
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A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw |
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| Post 3 made on April 20, 2008 at 07:20 |
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Joined: Posts: | March 2005 5,916 |
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channelplus has some nice looking rack mount catv and datacom distribution stuff. never used it but always keep in back of mind for possible use one day.
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I love supporting product that supports me! |
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| OP | Post 4 made on April 20, 2008 at 11:25 |
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Joined: Posts: | June 2005 1,312 |
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On April 19, 2008 at 14:37, Ernie Bornn-Gilman said...
Hey, why don't you call the local calbe company, ask to speak with engineering, and ask them what they recommend? You want to distribute their signal, right? That's what I did when cable first came in. These guys were happy to share the info. It sounds like you're asking for standard old analog cable head-end gear, except the old stuff didn't go much above 750 mHz (I think). You know, three racks of individual channel modulators, each at least $300, with signal mixing equipment and amplifiers that can take the resulting RF signal an amplify it to the point where you use a light bulb as a test load. Maybe I exaggerate, but that's the kind of stuff it sounds like you want. Maybe Pico-Macom and Qintar still carry that. If not, try Pace Electronics, who are not, I think, the makers of the dreaded Pace cable boxes. If they are, well, their other stuff is good. Try good old ebay! None of it is made by any of the companies we want to protect, so you won't be attacked if we find out you did it. It's impossible to find because the splitters in a cable system are out on the poles. In the headend they use splitters backwards to combine channels. It's a head-end product, so it's set to combine LOTS of channels. Twenty four modulators and one splitter/mixer; that's 25U, a nice size for a rack. The last antenna system I did worth talking about here had more than four hundred TVs and 60 FM locations. Once I mixed the channels together for the same level on each channel, I used 53 dB amplifiers, then went to directional line taps; those outputs went to a separate level of directional line taps, which went out to final runs where four to six TVs were daisy-chained, again with directional line taps. This worked quite well, but it wasn't bi-directional. And none of it was rack-mount. It just wasn't available for distribution systems. That sounds pretty difficult because the items manufactured for rack mounting are intended for technical looking rooms, just function and clear labeling, nothing more. What???? I'm talking about normal residential cable TV distribution here Ernie. Just looking for a rack mount option.
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...couple a thumb tacks and a stick of double sided tape should hold this baby up... |
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| OP | Post 5 made on April 20, 2008 at 11:27 |
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Joined: Posts: | June 2005 1,312 |
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On April 20, 2008 at 08:20, edizzle said...
channelplus has some nice looking rack mount catv and datacom distribution stuff. never used it but always keep in back of mind for possible use one day. Oh yeah? Where? I checked their site.... and couldn't see anything rack mountable.
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...couple a thumb tacks and a stick of double sided tape should hold this baby up... |
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| Post 6 made on April 20, 2008 at 13:52 |
Ernie Bornn-Gilman Yes, That Ernie! |
Joined: Posts: | December 2001 30,104 |
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On April 20, 2008 at 12:25, fluid-druid said...
What???? I'm talking about normal residential cable TV distribution here Ernie. Just looking for a rack mount option. "Normal" and "rack mount" don't go together in the residential world. If it did, you'd be finding product. How many normal residences have rack mount anything? We bring in racks because we know about them, not because it's the way the "normal" people selling this stuff envision the installation. That's why I pointed you to where rack mount stuff is. It seemed logical that if you want rack mount stuff you should look where rack mount stuff. You can use headend stuff for residential, but it won't be made with eight outputs because it's not made for residential.
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A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw |
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| OP | Post 7 made on April 20, 2008 at 18:05 |
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Joined: Posts: | June 2005 1,312 |
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OK... so, we put racks in 100% of our residential jobs. We can provide rack mounted routers, switches, patch panels.... We can provide rack mounted CD players, DVD players, Amps and receivers, We can provide rack mounted computers We can provide rack mounted ipod docks, TVs, and security DVRs. All of this product is "residential". I'm not trying to fight you on this... but come on.... larger network switches and most patch panels require a 19" rack. They won't go in a "normal" residential "can". Companies like Mid Atlantic make racks which lend them selves very well to data and communications equipment. I don't think there is a decent reason for there NOT to be a rack mounted CATV distribution amp. But I've been wrong before....
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...couple a thumb tacks and a stick of double sided tape should hold this baby up... |
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| Post 8 made on April 20, 2008 at 19:39 |
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Joined: Posts: | July 2003 699 |
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Two-way 30db amp, Model# RMDA-86A-30 Around $800 [Link: blondertongue.com] You can make "rackmount splitters" by using the higher quality splitters and taking a 3RU or 4RU blank and drilling holes or you can use the premade 1RU strips with F barrels and run patch cables from the back to the splitter.
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| OP | Post 9 made on April 21, 2008 at 02:16 |
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Joined: Posts: | June 2005 1,312 |
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On April 20, 2008 at 20:39, ErikS said...
Two-way 30db amp, Model# RMDA-86A-30 Around $800 [Link: blondertongue.com] You can make "rackmount splitters" by using the higher quality splitters and taking a 3RU or 4RU blank and drilling holes or you can use the premade 1RU strips with F barrels and run patch cables from the back to the splitter. I've looked all over the Blonder Tongue site, because I think they make nice stuff. Unfortunately, the amp you listed is up to 860Mhz. They make a 1000 MHz model....but its not bi-directional. They make ONE bi-directional rack-mount amp...but its 860 again. In our area, the cable provided use freqs beyond 860Mhz, and bi-direction for VOD etc.
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...couple a thumb tacks and a stick of double sided tape should hold this baby up... |
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| Post 10 made on April 21, 2008 at 11:13 |
timothyeyster Lurking Member |
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I have been looking for the same thing, and this is the best option I've found so far: [Link: channelvision.com] However, having worked with the compatible "Channel Vision Central" modules before, with less than stellar results, I am a little leary. Cool idea though. Maybe there are other companies doing similar things? Channel Plus has one too, I think, but I don't have any experience with their products, and the rack unit is something like 10u high, which is absurd. Anyway, I agree this is a product that could be very useful. Really sick of working in those cramped structured wiring panels. ESPECIALLY with CATV and Sat. Tim
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| Post 11 made on April 21, 2008 at 11:59 |
Ernie Bornn-Gilman Yes, That Ernie! |
Joined: Posts: | December 2001 30,104 |
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Somehow I think that while you were objecting to what I wrote, you never checked out what I referred to. Here's a rack-mount bidirectional amp that goes to 1000 mHz. Just what was your complaint? [Link: picomacom.com] None of their passives (i.e. splitters) that I happened to notice are rack mount. Perhaps that's because, as I said. bla bla bla. The very fact that another guy makes his own rackmount splitters reinforces your impression that this stuff is not available. I don't think ErikS (Post 8) would be making his own if he had found them out there. By the way, you don't have to quote an entire post to make a two-line comment on it. In fact, Daniel asks you to quote only what's relevant. If you want to comment on the whole thing, try: As to your post (Post #12), etc etc etc
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A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw |
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| Post 12 made on April 21, 2008 at 14:53 |
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Joined: Posts: | March 2005 5,916 |
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I love supporting product that supports me! |
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| Post 13 made on April 21, 2008 at 21:17 |
Ernie Bornn-Gilman Yes, That Ernie! |
Joined: Posts: | December 2001 30,104 |
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edizzle's suggestions look technically like the right answer but oh so far away from a rack mount idea. They are a rack mount excuse, building from scratch a way to put non-rack stuff into a rack. I don't think the rack mount stuff is made for home use. flu-dru, all the computer network stuff you mentioned was probably developed for professional use, then expanded into racks as we started to use them. Who knows? Keep asking for rack mount RF distribution and it might come along.
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A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw |
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| Post 14 made on April 22, 2008 at 13:42 |
davidcasemore Super Member |
Joined: Posts: RC XP: | January 2003 3,355 1⭐︎ |
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On April 19, 2008 at 14:01, fluid-druid said...
Requirements: 1. MUST be bi-directional 2. MUST be rated up to 1000 MHz 3. Be a good solution for 8, 16, 24+ port systems. 4. Ideally occupy 1U (2U max) 5. Be a quality product. Check out: [Link: security.honeywell.com] FutureSmart HBC416B. FutureSmart (now owned by Honeywell) makes this module for their structured wiring cabinet but I bet you could easily figure out a way to rack mount it - maybe with a "...couple a thumb tacks and a stick of double sided tape..." :-) It meets your requirements 1 - 3, could be modified for requirement 4, and I can't vouch for requirement 5 as I've never used this product.
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Fins: Still Slamming' His Trunk on pilgrim's Small Weenie - One Trunk at a Time! |
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| Post 15 made on April 22, 2008 at 13:47 |
FreddyFreeloader Super Member |
Joined: Posts: RC XP: | April 2004 3,243 1⭐︎ |
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The common practice is to use a rack mounted signal combiner in reverse.
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