|
Increasing Cable TV signal strength
On 2/8/2012 7:50 PM, Joerg wrote:
amdx wrote: On 2/8/2012 6:38 PM, Jeff Liebermann wrote: On Wed, 08 Feb 2012 15:41:08 -0800, Jeff wrote: Your 200ft of RG6a/u will drop the signal from between 4dB at the low end, to about 6dB at the high end. Some better numbers for RG6a/u: Freq Atten MHz -dB 10 0.8 50 1.4 100 2.9 200 4.3 400 6.4 1000 11.0 The CATV band is approximately 50 to 800MHz. With 200ft of cable, you should see 2.8 to 16dB of loss. While there may be problem at the high channels, all the lower channels should work. Any idea where channel 428 would be in that frequency range? That's a duplicate of 4,2 but in HD, and it works when 42 doesn't. I believe that's entirely up to the cable company, you'd have to ask an engineer there. http://en.wikipedia.org/wiki/Digital_cable Quote "For example, a cable company might call channel 5-1 "channel 732" and channel 5-2 "channel 733"". The 4 way splitter has a loss of about -7dB. Just a point. I may not have made it clear. I had the tech put in two 2way splitters and connect me to the first one. Hoping to gain 3db. (or 4) and it did make a difference. Where does the other leg of that splitter go to? And is that end properly terminated? [...] They go to two other outlets, that are used for transient boaters. sometimes they are used and sometimes they sit unterminated. I have not seen my problem better or worse when boats are in or out. But I have several 75 ohm F connector terminations. It's worth a try. Mikek |
Increasing Cable TV signal strength
On Wed, 08 Feb 2012 21:35:51 -0800, The_Giant_Rat_of_Sumatra
wrote: On Wed, 08 Feb 2012 22:17:05 -0600, tom wrote: On 2/8/2012 8:52 PM, The_Giant_Rat_of_Sumatra wrote: On Wed, 8 Feb 2012 18:21:19 -0800 (PST), wrote: Just a point. I may not have made it clear. I had the tech put in two 2way splitters and connect me to the first one. Hoping to gain 3db. (or 4) and it did make a difference. Where does the other leg of that splitter go to? And is that end properly terminated? Cable installers terminating things? You must be bleeping joking. They would have to have an IQ above 25 for that. Which would obviously be considerably greater than yours. tom K0TAR Said the *TOTAL* ****ing retard who doesn't know me, or a goddamned thing about me. I did more last week to make the world a batter place than a putz like you ever has or ever will in your entire, pathetic life. A batter place? Quite appropriate for a batty man. And it was ALL absolutely telecommunications related. Would you please supply some evidence of your claims? Yeah, yer battin' 1000 there bub. NOT! I'd bet cash at Vegas that you've never even seen what a 10Gb/s optical port looks like, much less anything about its operation. The only thing about "10" you have familiarity with is YOUR IQ. You must be some cable trash asswipe residential hole popper "installer" wanna be ****tard. Yeah, you got the ****tard part right. Fits you to a "T". Stick that up you TAR, K0 boy! You ****ING RETARD! FOAD! |
Increasing Cable TV signal strength
On 2/8/2012 8:21 PM, Mark wrote:
Just a point. I may not have made it clear. I had the tech put in two 2way splitters and connect me to the first one. Hoping to gain 3db. (or 4) and it did make a difference. Where does the other leg of that splitter go to? And is that end properly terminated? [...] -- Regards, Joerg http://www.analogconsultants.com/ right good question...OP, when you had the analog signal, was there significant ghosting? digital boxes might tolerate a WEAK signal but they are intolerant of reflections. Mark Never noticed any ghosting with the analog. Mikek |
Increasing Cable TV signal strength
On 2/8/2012 8:18 PM, Jeff Liebermann wrote:
On Wed, 08 Feb 2012 19:24:06 -0600, wrote: Now remember the problem is quite intermittent, but seems to be happening almost daily for short periods. Monitor the signal levels at the set top box and see if it coincides with something nearby changing, such as the dock lights or operation of heavy machinery. Maybe shove a DVM (digital voltmeter) into the AC power and see if it moves around. There should be no water in the cable, it's only a couple of months old and both ends have crimp on connectors and are located in a box or boat. I don't like crimp type connectors. Push on connectors are MUCH better. Also, if the coax came from Radio Shack, all bets are off as to the quality. I'm sorry I got that wrong, they are F compression connectors. Coax was from the cable company. My drivel: At my home, knology recently upgraded there system for faster internet. A cableman said he heard me radiating a block away. he came in and changed 7 crimp type connectors in my attic a couple of cable runs. Speedtest.com went from 6 Mbps to over 11 Mbps with just those changes. It does have diagnostics, I'm not sure if it is each channel though. But I can get some info out of the box. I'll be there Friday and I'll get that info and the model of the cable set top box. Digital set top box diagnostics are different from analog. Instead of per-channel levels, it might have levels for specific channels. I'm using Comcast at the boat. We are lucky here (I think) in that we have a choice of two cable companies. If it's Comcast, you will probably still have the lower 72 channels doing analog. Remove the set top box and plug in your TV directly. Oh, if that is the fact, I may get me some browny points, If I can get the signal up to snuff, then put the vcr back in the line, my wife could record her soaps again. That would get me 15 seconds of hero status! Mikek Drivel is good. The story of my life. |
Increasing Cable TV signal strength
On 2/9/2012 7:43 AM, amdx wrote:
On 2/8/2012 8:18 PM, Jeff Liebermann wrote: On Wed, 08 Feb 2012 19:24:06 -0600, wrote: Now remember the problem is quite intermittent, but seems to be happening almost daily for short periods. Monitor the signal levels at the set top box and see if it coincides with something nearby changing, such as the dock lights or operation of heavy machinery. Maybe shove a DVM (digital voltmeter) into the AC power and see if it moves around. There should be no water in the cable, it's only a couple of months old and both ends have crimp on connectors and are located in a box or boat. I don't like crimp type connectors. Push on connectors are MUCH better. Also, if the coax came from Radio Shack, all bets are off as to the quality. I'm sorry I got that wrong, they are F compression connectors. Coax was from the cable company. My drivel: At my home, knology recently upgraded there system for faster internet. A cableman said he heard me radiating a block away. he came in and changed 7 crimp type connectors in my attic a couple of cable runs. Speedtest.com went from 6 Mbps to over 11 Mbps with just those changes. It does have diagnostics, I'm not sure if it is each channel though. But I can get some info out of the box. I'll be there Friday and I'll get that info and the model of the cable set top box. Digital set top box diagnostics are different from analog. Instead of per-channel levels, it might have levels for specific channels. I'm using Comcast at the boat. We are lucky here (I think) in that we have a choice of two cable companies. If it's Comcast, you will probably still have the lower 72 channels doing analog. Remove the set top box and plug in your TV directly. Oh, if that is the fact, I may get me some browny points, If I can get the signal up to snuff, then put the vcr back in the line, my wife could record her soaps again. That would get me 15 seconds of hero status! Mikek Just an addition to the termination debate, the marina has about 150 taps, I'd be surprised if 30 of them are connected to a tv and the rest are unterminated. The line generally goes to the utility pedestal into a 2 way splitter and then about 1 ft of cable connects it to the 2 taps for the boat owners. Mikek |
Increasing Cable TV signal strength
On Thu, 09 Feb 2012 13:12:15 +0000, Pomegranate *******
wrote: Would you please supply some evidence of your claims? You don't even know what a 10Gb/s optical port looks like either, jackass. You are truly pathetic, and a total loser. The only response a retard like you knows is "stalk and jab". |
Increasing Cable TV signal strength
On 2/9/2012 8:44 AM, The_Giant_Rat_of_Sumatra wrote:
On Thu, 09 Feb 2012 13:12:15 +0000, Pomegranate ******* wrote: Would you please supply some evidence of your claims? You don't even know what a 10Gb/s optical port looks like either, jackass. You are truly pathetic, and a total loser. The only response a retard like you knows is "stalk and jab". Hey Rat, Please quietly leave my thread! Thanks, Mikek |
Increasing Cable TV signal strength
amdx wrote:
On 2/8/2012 7:50 PM, Joerg wrote: amdx wrote: On 2/8/2012 6:38 PM, Jeff Liebermann wrote: On Wed, 08 Feb 2012 15:41:08 -0800, Jeff wrote: Your 200ft of RG6a/u will drop the signal from between 4dB at the low end, to about 6dB at the high end. Some better numbers for RG6a/u: Freq Atten MHz -dB 10 0.8 50 1.4 100 2.9 200 4.3 400 6.4 1000 11.0 The CATV band is approximately 50 to 800MHz. With 200ft of cable, you should see 2.8 to 16dB of loss. While there may be problem at the high channels, all the lower channels should work. Any idea where channel 428 would be in that frequency range? That's a duplicate of 4,2 but in HD, and it works when 42 doesn't. I believe that's entirely up to the cable company, you'd have to ask an engineer there. http://en.wikipedia.org/wiki/Digital_cable Quote "For example, a cable company might call channel 5-1 "channel 732" and channel 5-2 "channel 733"". The 4 way splitter has a loss of about -7dB. Just a point. I may not have made it clear. I had the tech put in two 2way splitters and connect me to the first one. Hoping to gain 3db. (or 4) and it did make a difference. Where does the other leg of that splitter go to? And is that end properly terminated? [...] They go to two other outlets, that are used for transient boaters. sometimes they are used and sometimes they sit unterminated. I have not seen my problem better or worse when boats are in or out. But I have several 75 ohm F connector terminations. It's worth a try. Yup, try it. Transient boaters will most likely not carry the required set top box around but use the lower analog channels or nowadays maybe UHF digital. Sort of "basic cable". Then the TV is connected directly and those rarely have a true 75ohms input. -- Regards, Joerg http://www.analogconsultants.com/ |
Increasing Cable TV signal strength
On Thu, 09 Feb 2012 06:44:45 -0800, The_Giant_Rat_of_Sumatra
wrote: On Thu, 09 Feb 2012 13:12:15 +0000, Pomegranate ******* wrote: Would you please supply some evidence of your claims? You don't even know what a 10Gb/s optical port looks like either, jackass. You are truly pathetic, and a total loser. The only response a retard like you knows is "stalk and jab". Would you please supply some evidence of your claims? |
Increasing Cable TV signal strength
On Thu, 09 Feb 2012 07:54:19 -0600, amdx
wrote: My drivel: At my home, knology recently upgraded there system for faster internet. A cableman said he heard me radiating a block away. he came in and changed 7 crimp type connectors in my attic a couple of cable runs. Speedtest.com went from 6 Mbps to over 11 Mbps with just those changes. Yep, that's the way it works. Compression type F connectors work well. Crimp type are junk. The catch is that there are probably 100 different types of connectors, each with their own compression tools, intended to fit about 8 different types of 75 ohm coax (RG6a/u, RG59/u, single shielded, double shielded, quad shielded, direct burial, etc). Mixing connector types and cables doesn't work. I got fed up and "obtained" a 1000ft roll of double shielded RG6a/u, a big of matching F, BNC, and phono connectors, a compression tool, a stripping tool, and replaced all the junk cables in the house. If it's Comcast, you will probably still have the lower 72 channels doing analog. Remove the set top box and plug in your TV directly. Oh, if that is the fact, I may get me some browny points, If I can get the signal up to snuff, then put the vcr back in the line, my wife could record her soaps again. That would get me 15 seconds of hero status! Mikek I'm sure it's true for Comcast in Santa Cruz, CA. No clue on other areas. The grand plan is to move all the analog channels to digital area by area: http://www2.insidenova.com/news/2011/jun/22/comcast-removes-scores-channels-analog-cable-ar-1126652/ http://www2.newsadvance.com/business/2011/nov/09/comcast-switching-analog-digital-ar-1448489/ Unfortunately, your area may be one of those that have moved to all digital. Hard to tell from here. Just an addition to the termination debate, the marina has about 150 taps, I'd be surprised if 30 of them are connected to a tv and the rest are unterminated. The line generally goes to the utility pedestal into a 2 way splitter and then about 1 ft of cable connects it to the 2 taps for the boat owners. Mikek Can you determine if the marina is using a distribution amplifier driving a big splitter, or is using a single cable trunk snaked through the marina, with taps (directional couplers) at various points? If taps, it's easy to install too many taps, or miscalculate the tap type, resulting in level variations along the trunk. http://www.doityourself.com/forum/entertainment-center-tvs-stereos-vcrs-dvds-8-track-tape-players/334706-difference-between-tap-splitter.html -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
Increasing Cable TV signal strength
On Thu, 09 Feb 2012 09:01:21 -0800, Jeff Liebermann
wrote: How to Check Comcast Signal Levels http://www.ehow.com/how_7777024_check-comcast-signal-levels.html I'm not sure if this works on the newer set top boxes, but give it a try. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
Increasing Cable TV signal strength
On Thu, 9 Feb 2012 08:14:31 +0000, Ian Jackson
wrote: In message , Jeff Liebermann writes Something is wrong. The nominal signal from the cable drop is suppose to be 0dBm. If there's a splitter involved, they like to crank it up to about 10dBm. Careful! Don't get your dBm mixed up with your dBmV. There's around 48dB difference! 0dBm is a massive 48dBmV. That would certainly make most set-top boxes wake up and pay attention! Oops. All my mentions of dBm should be dBmV. Thanks. Range of acceptable signal levels. They're similar for DTV. http://www.dslreports.com/faq/16085 How to check signal levels with a Motorola set top box: http://www.ehow.com/how_12186368_check-signal-strength-comcast-digital-cable-motorola.html -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
Increasing Cable TV signal strength
On Feb 8, 2:00*pm, amdx wrote:
Hi All, I'm on a boat, about 170ft from the utility post. Recently our cable company switched to the wonderful world of Digital TV. I got the new digital converter and had no picture. I took the box back and got a second box, still no picture. So now I suspect a weak signal and confirm that it is the cable length. The cable company came out and gave me a better cable than I had installed. At this point I have a picture but it is intermittent. The signal at the utility post has 3 outputs and had a four way splitter, I suggested the cable guy put in two 2 way splitters and give me the stronger (first) tap.. * That got my signal to work almost all the time. I'd like to get the signal to work 100% of the time. * *I don't has access to electricity at the utility post, so an amp is out. Although I could try an amp at the cable box end. Is that reasonable? I would run two cables if there was a way to make it increase signal strength. * Getting anymore from the cable company is not an option. * *Any ideas to get a better signal? * * * * * * * * Mikek PS. * When the signal fails it seems channel 41 is ok and above 42 it breaks up. Curious to know if there is an unusual frequency jump between those two digital channels. Google your cable box model. You should able to find ifo on how to pull up a menu that shows signal strengh. -60dbm is about where my sigal starts droping out Jimmie |
Increasing Cable TV signal strength
amdx wrote: On 2/8/2012 7:50 PM, Joerg wrote: Where does the other leg of that splitter go to? And is that end properly terminated? They go to two other outlets, that are used for transient boaters. sometimes they are used and sometimes they sit unterminated. I have not seen my problem better or worse when boats are in or out. But I have several 75 ohm F connector terminations. It's worth a try. Not really. If there are long unterminated 75 ohm cables after the splitter, they are a crude termination. The splitter's backmatch eliminates ghosting from reflections from the unterminated end. -- You can't have a sense of humor, if you have no sense. |
Increasing Cable TV signal strength
Michael Coslo wrote: I don't know exactly how it's done now, but when I worked in the Cable industry many moons ago, we had a lot of adjustment we could make. Even more, we had variable by frequency attenuators so we could ensure that a flat signal showed up. Those are 'Equalizers' and used to cancel the cable losses. There is some adjustment in the trunk amplifiers, but some brands just used a plug in equalizer marked with the rolloff in dB while others had both. The coarse plugin, and a variable equalizer to level the trunkline for 'Proof of Performance' tests. -- You can't have a sense of humor, if you have no sense. |
Increasing Cable TV signal strength
Joerg wrote: amdx wrote: Hi All, I'm on a boat, about 170ft from the utility post. Recently our cable company switched to the wonderful world of Digital TV. I got the new digital converter and had no picture. I took the box back and got a second box, still no picture. So now I suspect a weak signal and confirm that it is the cable length. The cable company came out and gave me a better cable than I had installed. At this point I have a picture but it is intermittent. The signal at the utility post has 3 outputs and had a four way splitter, I suggested the cable guy put in two 2 way splitters and give me the stronger (first) tap. That got my signal to work almost all the time. I'd like to get the signal to work 100% of the time. Looks like the cable guys screwed up. In your opinion. If they are delivering the level called for in their franchise, they didn't screw up. It has always been up to the customer to pay for or provide extra equipment for non standard installs. -- You can't have a sense of humor, if you have no sense. |
Increasing Cable TV signal strength
Robert Baer wrote: amdx wrote: Hi All, I'm on a boat, about 170ft from the utility post. Recently our cable company switched to the wonderful world of Digital TV. I got the new digital converter and had no picture. I took the box back and got a second box, still no picture. So now I suspect a weak signal and confirm that it is the cable length. The cable company came out and gave me a better cable than I had installed. At this point I have a picture but it is intermittent. The signal at the utility post has 3 outputs and had a four way splitter, I suggested the cable guy put in two 2 way splitters and give me the stronger (first) tap. That got my signal to work almost all the time. I'd like to get the signal to work 100% of the time. I don't has access to electricity at the utility post, so an amp is out. Although I could try an amp at the cable box end. Is that reasonable? I would run two cables if there was a way to make it increase signal strength. Getting anymore from the cable company is not an option. Any ideas to get a better signal? Mikek PS. When the signal fails it seems channel 41 is ok and above 42 it breaks up. Curious to know if there is an unusual frequency jump between those two digital channels. Well, you could add an amplifier at the splitter where (nominally) there is no power. Use the coax center conductor for power; inline capacitors allow signal to pass and feeding center via small choke allows DC but no signal. Once upon a time there were little adapters that did this AC/DC thing... A power inserter is used to put 9-28 volts DC on the coax, depending on the amplifer you use. -- You can't have a sense of humor, if you have no sense. |
Increasing Cable TV signal strength
" wrote: On Wed, 08 Feb 2012 18:52:10 -0800, The_Giant_Rat_of_Sumatra wrote: On Wed, 8 Feb 2012 18:21:19 -0800 (PST), Mark wrote: Just a point. I may not have made it clear. I had the tech put in two 2way splitters and connect me to the first one. Hoping to gain 3db. (or 4) and it did make a difference. Where does the other leg of that splitter go to? And is that end properly terminated? Cable installers terminating things? You must be ****ing joking. They would have to have an IQ above 25 for that. *WAY* above your pay grade. Makes you wonder what they paid him for at Time Warner, if he wasn't smart enough to install a terminator. -- You can't have a sense of humor, if you have no sense. |
Increasing Cable TV signal strength
"JIMMIE" wrote in message ... On Feb 8, 2:00 pm, amdx wrote: Hi All, I'm on a boat, about 170ft from the utility post. Recently our cable company switched to the wonderful world of Digital TV. I got the new digital converter and had no picture. I took the box back and got a second box, still no picture. So now I suspect a weak signal and confirm that it is the cable length. The cable company came out and gave me a better cable than I had installed. At this point I have a picture but it is intermittent. The signal at the utility post has 3 outputs and had a four way splitter, I suggested the cable guy put in two 2 way splitters and give me the stronger (first) tap. That got my signal to work almost all the time. I'd like to get the signal to work 100% of the time. I don't has access to electricity at the utility post, so an amp is out. Although I could try an amp at the cable box end. Is that reasonable? I would run two cables if there was a way to make it increase signal strength. Getting anymore from the cable company is not an option. Any ideas to get a better signal? Mikek PS. When the signal fails it seems channel 41 is ok and above 42 it breaks up. Curious to know if there is an unusual frequency jump between those two digital channels. Google your cable box model. You should able to find ifo on how to pull up a menu that shows signal strengh. -60dbm is about where my sigal starts droping out Jimmie ================================================== === Yes, but be mindful of the difference between dBm and dBmV. The cable industry often deals in levels on the dBmV scale. There are places like this ... http://www.maxim-ic.com/app-notes/index.mvp/id/808 where you can see some conversion equations. Jimmie's -60dBm equals -11.25 dBmV. Same power level -- different scale. I have long known level requirements for the TV tuner's cousin, the cable modem. The common DOCSIS 2 cable modems are usually spec'ed for -15dBmV to +15dBmV and the smart operators try to keep inside +/- 12. Thus, you can see that Jimmie's -11.25dBmV is near the low limit and that dropouts become more likely in that neighborhood. I little bit of google snooping revealed that DTV cable boxes would like 0dBmV and will usually be okay with -10dBmV to +10dBmV. Almost the same. i hope this helps. "Sal" "Sal" |
Increasing Cable TV signal strength
Michael A. Terrell wrote:
Joerg wrote: amdx wrote: Hi All, I'm on a boat, about 170ft from the utility post. Recently our cable company switched to the wonderful world of Digital TV. I got the new digital converter and had no picture. I took the box back and got a second box, still no picture. So now I suspect a weak signal and confirm that it is the cable length. The cable company came out and gave me a better cable than I had installed. At this point I have a picture but it is intermittent. The signal at the utility post has 3 outputs and had a four way splitter, I suggested the cable guy put in two 2 way splitters and give me the stronger (first) tap. That got my signal to work almost all the time. I'd like to get the signal to work 100% of the time. Looks like the cable guys screwed up. In your opinion. If their company cable box doesn't deliver a useful and reliable signal I call that screwed up. One pays for a service and expects to either get it delivered as promised or money back. ... If they are delivering the level called for in their franchise, they didn't screw up. It has always been up to the customer to pay for or provide extra equipment for non standard installs. Mike's install does not sound non-standard. 170ft cable drop towards premises which is fairly normal, plus the cable company's set-top box. -- Regards, Joerg http://www.analogconsultants.com/ |
Increasing Cable TV signal strength
On Thu, 09 Feb 2012 09:38:13 -0600, amdx wrote:
On 2/9/2012 8:44 AM, The_Giant_Rat_of_Sumatra wrote: On Thu, 09 Feb 2012 13:12:15 +0000, Pomegranate ******* wrote: Would you please supply some evidence of your claims? You don't even know what a 10Gb/s optical port looks like either, jackass. You are truly pathetic, and a total loser. The only response a retard like you knows is "stalk and jab". Hey Rat, Hey jerk off! Please quietly leave my thread! This is NOT *your* anything, you retarded ****. You have ZERO ownership of anything here in Usenet, you ****ing total retard. Thanks, Mikek **** you, jackoff. Please die and quit wasting oxygen. |
Increasing Cable TV signal strength
On Thu, 09 Feb 2012 17:56:35 -0500, "Michael A. Terrell"
wrote: Makes you wonder what they paid him for at Time Warner, if he wasn't smart enough to install a terminator. I was fine you ****ing retard. Learn to read. My remarks were about the ****tards all around me, not myself. I actually learned about what things one does NOT do as a cable installer, and cutting corners on policy was high on the list. Makes me wonder why anyone would have ever paid a retarded presumptuous asswipe like you, if you cannot even read a simple Usenet post. |
Increasing Cable TV signal strength
On 2/9/2012 7:22 PM, The_Giant_Rat_of_Sumatra wrote:
On Thu, 09 Feb 2012 09:38:13 -0600, wrote: On 2/9/2012 8:44 AM, The_Giant_Rat_of_Sumatra wrote: On Thu, 09 Feb 2012 13:12:15 +0000, Pomegranate ******* wrote: Would you please supply some evidence of your claims? You don't even know what a 10Gb/s optical port looks like either, jackass. You are truly pathetic, and a total loser. The only response a retard like you knows is "stalk and jab". Hey Rat, Hey jerk off! Please quietly leave my thread! This is NOT *your* anything, you retarded ****. You have ZERO ownership of anything here in Usenet, you ****ing total retard. Oh darn, that didn't work. :-) **** you, jackoff. Please die and quit wasting oxygen. Have a nice day, I'm sure you deserve it. Mikek |
Increasing Cable TV signal strength
On 2/8/2012 11:35 PM, The_Giant_Rat_of_Sumatra wrote:
On Wed, 08 Feb 2012 22:17:05 -0600, wrote: On 2/8/2012 8:52 PM, The_Giant_Rat_of_Sumatra wrote: On Wed, 8 Feb 2012 18:21:19 -0800 (PST), wrote: Just a point. I may not have made it clear. I had the tech put in two 2way splitters and connect me to the first one. Hoping to gain 3db. (or 4) and it did make a difference. Where does the other leg of that splitter go to? And is that end properly terminated? Cable installers terminating things? You must be bleeping joking. They would have to have an IQ above 25 for that. Which would obviously be considerably greater than yours. tom K0TAR Said the *TOTAL* ****ing retard who doesn't know me, or a goddamned thing about me. I did more last week to make the world a batter place than a putz like you ever has or ever will in your entire, pathetic life. And it was ALL absolutely telecommunications related. Yeah, yer battin' 1000 there bub. NOT! I'd bet cash at Vegas that you've never even seen what a 10Gb/s optical port looks like, much less anything about its operation. The only thing about "10" you have familiarity with is YOUR IQ. You must be some cable trash asswipe residential hole popper "installer" wanna be ****tard. Yeah, you got the ****tard part right. Fits you to a "T". Stick that up you TAR, K0 boy! You ****ING RETARD! FOAD! Interesting how little you bother to learn about the people you swear at. At least I can put a sentence together. And I was leading 10M$ engineering projects while you were installing cable. There is nothing you can spout that would denigrate me. tom K0TAR |
Increasing Cable TV signal strength
On 2/8/2012 11:35 PM, The_Giant_Rat_of_Sumatra wrote:
K0TAR Said the *TOTAL* ****ing retard who doesn't know me, or a goddamned thing about me. I did more last week to make the world a batter place than a putz like you ever has or ever will in your entire, pathetic life. And it was ALL absolutely telecommunications related. Yeah, yer battin' 1000 there bub. NOT! I'd bet cash at Vegas that you've never even seen what a 10Gb/s optical port looks like, much less anything about its operation. The only thing about "10" you have familiarity with is YOUR IQ. You must be some cable trash asswipe residential hole popper "installer" wanna be ****tard. Yeah, you got the ****tard part right. Fits you to a "T". Stick that up you TAR, K0 boy! You ****ING RETARD! FOAD! You seem to be trying to compensate for some serious low self esteem issues. I'd suggest you get some professional help. tom K0TAR |
Increasing Cable TV signal strength
On 2/8/2012 11:35 PM, The_Giant_Rat_of_Sumatra wrote:
Said the *TOTAL* ****ing retard who doesn't know me, or a goddamned thing about me. I did more last week to make the world a batter place than a putz like you ever has or ever will in your entire, pathetic life. And it was ALL absolutely telecommunications related. Yeah, yer battin' 1000 there bub. NOT! I'd bet cash at Vegas that you've never even seen what a 10Gb/s optical port looks like, much less anything about its operation. The only thing about "10" you have familiarity with is YOUR IQ. You must be some cable trash asswipe residential hole popper "installer" wanna be ****tard. Yeah, you got the ****tard part right. Fits you to a "T". Stick that up you TAR, K0 boy! You ****ING RETARD! FOAD! I was lead at the first fiber campus install in the US. 1985. Top that pal. You got nothin. tom K0TAR |
Increasing Cable TV signal strength
On 2/9/2012 9:18 PM, tom wrote:
I was lead at the first fiber campus install in the US. 1985. And that would be college campus. Don't know about other types. tom K0TAR |
Increasing Cable TV signal strength
Joerg wrote: Michael A. Terrell wrote: Joerg wrote: amdx wrote: Hi All, I'm on a boat, about 170ft from the utility post. Recently our cable company switched to the wonderful world of Digital TV. I got the new digital converter and had no picture. I took the box back and got a second box, still no picture. So now I suspect a weak signal and confirm that it is the cable length. The cable company came out and gave me a better cable than I had installed. At this point I have a picture but it is intermittent. The signal at the utility post has 3 outputs and had a four way splitter, I suggested the cable guy put in two 2 way splitters and give me the stronger (first) tap. That got my signal to work almost all the time. I'd like to get the signal to work 100% of the time. Looks like the cable guys screwed up. In your opinion. If their company cable box doesn't deliver a useful and reliable signal I call that screwed up. One pays for a service and expects to either get it delivered as promised or money back. ... If they are delivering the level called for in their franchise, they didn't screw up. It has always been up to the customer to pay for or provide extra equipment for non standard installs. Mike's install does not sound non-standard. 170ft cable drop towards premises which is fairly normal, plus the cable company's set-top box. Grow up. That is an excessive length drop. A standard drop is under 100 feet. You think you know everything, and that the world has to live by your rules. You don't, and it doesn't. I'll bet you've never even seen a CATV franchise, or the dozen of pages of specifications agreed to by both the CATV company and the local government. The CATV company isn't a Santa Clause machine, and local governments know why there are limits to the service provided. If there were't, no one could afford to build or operate a CATV system. You've never designed a headend, or a physical plant If they build to supply higher port levels, it has to start at the headend, and requires closer spaced trunk amplifers. The system noise goes up from all of the cascaded amplifers, and the equipment runs hotter, withj a very reduced service life. When you can design an RF distribution system of more than 500 MHz bandwidth and has over 10,000 output ports, with the gain stabilized to a couple dBmv 20 miles from the headend and over a range from sub zero F to + 100 F then you can tell me I'm wrong. One headend I designed and built was only off by .1 dBmv at the test port on the first trunk amp which was a half mile from the head end. If you can do better than that, I'll listen to you and your opinions -- You can't have a sense of humor, if you have no sense. |
Increasing Cable TV signal strength
On 2/9/2012 9:35 PM, Michael A. Terrell wrote:
Grow up. That is an excessive length drop. A standard drop is under 100 feet. You think you know everything, and that the world has to live by your rules. You don't, and it doesn't. I'll bet you've never even seen a CATV franchise, or the dozen of pages of specifications agreed to by both the CATV company and the local government. The CATV company isn't a Santa Clause machine, and local governments know why there are limits to the service provided. If there were't, no one could afford to build or operate a CATV system. You've never designed a headend, or a physical plant If they build to supply higher port levels, it has to start at the headend, and requires closer spaced trunk amplifers. The system noise goes up from all of the cascaded amplifers, and the equipment runs hotter, withj a very reduced service life. When you can design an RF distribution system of more than 500 MHz bandwidth and has over 10,000 output ports, with the gain stabilized to a couple dBmv 20 miles from the headend and over a range from sub zero F to + 100 F then you can tell me I'm wrong. One headend I designed and built was only off by .1 dBmv at the test port on the first trunk amp which was a half mile from the head end. If you can do better than that, I'll listen to you and your opinions Cool! You seem to know what you are up to. Can you put rough numbers around what you mentioned? Like what are providers legally required to deliver at the far end of the drop? Thanks. tom K0TAR |
Increasing Cable TV signal strength
On Thu, 09 Feb 2012 16:02:35 +0000, Pomegranate *******
wrote: On Thu, 09 Feb 2012 06:44:45 -0800, The_Giant_Rat_of_Sumatra wrote: On Thu, 09 Feb 2012 13:12:15 +0000, Pomegranate ******* wrote: Would you please supply some evidence of your claims? You don't even know what a 10Gb/s optical port looks like either, jackass. You are truly pathetic, and a total loser. The only response a retard like you knows is "stalk and jab". Would you please supply some evidence of your claims? You wouldn't know what a constellation measurement was if one bit you in the ass, much less understand it. Nuff said. |
Increasing Cable TV signal strength
On 2/9/2012 10:27 PM, The_Giant_Rat_of_Sumatra wrote:
You wouldn't know what a constellation measurement was if one bit you in the ass, much less understand it. Nuff said. Holy crap! He's made it to the 1970s! tom K0TAR |
Increasing Cable TV signal strength
tom wrote: On 2/9/2012 9:35 PM, Michael A. Terrell wrote: Grow up. That is an excessive length drop. A standard drop is under 100 feet. You think you know everything, and that the world has to live by your rules. You don't, and it doesn't. I'll bet you've never even seen a CATV franchise, or the dozen of pages of specifications agreed to by both the CATV company and the local government. The CATV company isn't a Santa Clause machine, and local governments know why there are limits to the service provided. If there were't, no one could afford to build or operate a CATV system. You've never designed a headend, or a physical plant If they build to supply higher port levels, it has to start at the headend, and requires closer spaced trunk amplifers. The system noise goes up from all of the cascaded amplifers, and the equipment runs hotter, withj a very reduced service life. When you can design an RF distribution system of more than 500 MHz bandwidth and has over 10,000 output ports, with the gain stabilized to a couple dBmv 20 miles from the headend and over a range from sub zero F to + 100 F then you can tell me I'm wrong. One headend I designed and built was only off by .1 dBmv at the test port on the first trunk amp which was a half mile from the head end. If you can do better than that, I'll listen to you and your opinions Cool! You seem to know what you are up to. Can you put rough numbers around what you mentioned? Like what are providers legally required to deliver at the far end of the drop? We were required to deliver 0 dBmv at the end of 100 feet of RG-59 or RG-6 for two sets per the franchise. The system was designed at +10 dBmv at the tap to allow for three or four TVs at the 100 foot range. That was on a 36 channel system with RCA modulators & HST. It was done for two reasons. To have a little extra signal available when the system was built, and for conversion for a 300 MHz plant to a 450 MHz plant without respacing the trunk amplifiers. I build a headend & interface to tie two incompatible community loops together. Ours was a sub split loop, and the other CATV company used mid split. We used 2 & 12 for pilots, so we fed them Channel 2 into their return, and down converted their feed to T-9 for our return. That headend had two RCA HSP and a combiner. The interface was another HSP in a large stainless steel NEMA box mounted to a power pole at the boundary of the two systems. A pair of two way splitters were used to route the signals between the systems, as well as into and out of the HSP. The other company wanted us to install a modulator and a demodulator at the boundary to give us audio & video, and another pair from our side so the interface would be baseband. Their design was over $15,000 in hardware alone. My design was under $3000 for all the hardware & labor to install. I had system designers from both sides telling me it wouldn't work, but it did the job with no problems. :) -- You can't have a sense of humor, if you have no sense. |
Increasing Cable TV signal strength
On Thu, 09 Feb 2012 20:29:01 -0600, tom wrote:
Nice to have amusing idiots back again. Actually, asshole, folks here would like it if you would leave. Bad enough seeing dopes like SkyBuck here, now we have to see idiots like you and krw as well. No, dumb****, you are not amusing, idiot. Did ya catch the FOAD in that, boy? |
Increasing Cable TV signal strength
On Thu, 09 Feb 2012 20:34:43 -0600, tom wrote:
Interesting how little you bother to learn about the people you swear at. Interesting how ****tards like you make presumptions about people (and include insults), and then forget that you even did it, and act as if I am some kind of offender against you because I called you the ****tard you are for doing it.. You are as ****ing retarded as it gets, boy. Your mother should be jailed. |
Increasing Cable TV signal strength
On Thu, 09 Feb 2012 20:34:43 -0600, tom wrote:
At least I can put a sentence together. Is that what you call that? |
Increasing Cable TV signal strength
On Thu, 09 Feb 2012 20:34:43 -0600, tom wrote:
And I was leading 10M$ engineering projects while you were installing cable. Yes, and now I am leading $400M (yes, idiot, the dollar sign goes in front) telecom projects which include spaceborne elements and the fastest gateways on the planet and put Americans to work all over the nation in support, and you get to type stupid **** in Usenet and on your facebook facetard account and wither away like the old, dead **** you are. Soon enough, you'll be as senile as krw is and you won't even be able to cut a cable fitting, and I will be still taking cross country tours and racing on my bike and barefoot water skiing and living until 2110. Hell, I'll set records. I am just getting started. Yes, idiot... you are amusing, sometimes. Bwuahahahahahaha! |
Increasing Cable TV signal strength
On 2/9/2012 10:34 PM, Michael A. Terrell wrote:
tom wrote: On 2/9/2012 9:35 PM, Michael A. Terrell wrote: Cool! You seem to know what you are up to. Can you put rough numbers around what you mentioned? Like what are providers legally required to deliver at the far end of the drop? We were required to deliver 0 dBmv at the end of 100 feet of RG-59 or RG-6 for two sets per the franchise. The system was designed at +10 dBmv at the tap to allow for three or four TVs at the 100 foot range. That was on a 36 channel system with RCA modulators& HST. It was done for two reasons. To have a little extra signal available when the system was built, and for conversion for a 300 MHz plant to a 450 MHz plant without respacing the trunk amplifiers. I build a headend& interface to tie two incompatible community loops together. Ours was a sub split loop, and the other CATV company used mid split. We used 2& 12 for pilots, so we fed them Channel 2 into their return, and down converted their feed to T-9 for our return. That headend had two RCA HSP and a combiner. The interface was another HSP in a large stainless steel NEMA box mounted to a power pole at the boundary of the two systems. A pair of two way splitters were used to route the signals between the systems, as well as into and out of the HSP. The other company wanted us to install a modulator and a demodulator at the boundary to give us audio& video, and another pair from our side so the interface would be baseband. Their design was over $15,000 in hardware alone. My design was under $3000 for all the hardware& labor to install. I had system designers from both sides telling me it wouldn't work, but it did the job with no problems. :) Very nice. We were much more constrained on the install I mentioned up the thread a ways. The fiber was fed at E1 speed, which probably didn't work it very hard. We had an issue at one point. This was a distributed proc/data system, one of the first. Each cabinet was a standalone PBX. And you could make 126 of them look like one. And each could survive on its own. First fiber campus we'd done. Staggered cut to the new infrastructure. Fun stuff. At one point we had to do the cutover to the other large pice of the system. Each end connected the fiber. 0 signal. TDR from A end showed 700 meters from A end, 800 meters from end B. Length from A to B is 1500 meters. The work that occurred because of that was not fun. Had to go get the guy doing fusion splicing. Joy. Midnight trip to Pittsburgh with the salesman. Actually it was fun. Not much traffic at night. Landing pattern at 160mph in between DC9s into Pittsburgh at about midnight. And they didn't like 160 at all. This was scary. Quickest turnoff onto a taxiway I've ever experienced. Of course the taxiway may not have been one. We didn't care. tom K0TAR |
Increasing Cable TV signal strength
On Thu, 09 Feb 2012 21:24:45 -0600, tom wrote:
On 2/9/2012 9:18 PM, tom wrote: I was lead at the first fiber campus install in the US. 1985. And that would be college campus. Don't know about other types. tom K0TAR Yes, and the fiber was obsolete within a few years after installation, and is not compatible with the standardized cabling and I/O methodology in use today. Even modern copper Ethernet is faster than that 20 year old 100Mb/s obsolete fiber and that number was before the overhead. Whoopie doo, the ditz knows how to polish a face. Not even required any more. |
Increasing Cable TV signal strength
On 2/9/2012 10:57 PM, The_Giant_Rat_of_Sumatra wrote:
On Thu, 09 Feb 2012 20:34:43 -0600, wrote: And I was leading 10M$ engineering projects while you were installing cable. Yes, and now I am leading $400M (yes, idiot, the dollar sign goes in front) telecom projects which include spaceborne elements and the fastest gateways on the planet and put Americans to work all over the nation in support, and you get to type stupid **** in Usenet and on your facebook facetard account and wither away like the old, dead **** you are. Soon enough, you'll be as senile as krw is and you won't even be able to cut a cable fitting, and I will be still taking cross country tours and racing on my bike and barefoot water skiing and living until 2110. Hell, I'll set records. I am just getting started. Yes, idiot... you are amusing, sometimes. Bwuahahahahahaha! Yup, he's amusing. tom K0TAR |
| All times are GMT +1. The time now is 11:10 AM. |
Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
RadioBanter.com