amish Posted April 29, 2006 CID Share Posted April 29, 2006 I wanted to know if I have one wall outlet go into a splitter, that puts one into a TV, and one into the cable modem. Will this cause any lower speeds? Or would it make no difference? Quote Link to comment https://testmy.net/ipb/topic/13064-cable-splitting/ Share on other sites More sharing options...
dn0 Posted April 29, 2006 CID Share Posted April 29, 2006 You should not notice any difference unless your transmit or receive levels are borderline. Can you post your levels? Try http://192.168.100.1 in your browser. Motorola modems have a "signal" tab where you'll find your TX and Rx levels. A 2 way splitter will drop your receive levels by ~3.5dB and increase your TX levels the same amount. Working window for receive levels is -10 to +10dBmV (-5 to +5 optimum) and about 30dB to 50dB for the transmit levels. Quote Link to comment https://testmy.net/ipb/topic/13064-cable-splitting/#findComment-139029 Share on other sites More sharing options...
amish Posted April 29, 2006 Author CID Share Posted April 29, 2006 I don't have a motorola mode, it's a Teryaon mode, and only says stuff like "operational." Anyone know anything of these modems? Quote Link to comment https://testmy.net/ipb/topic/13064-cable-splitting/#findComment-139150 Share on other sites More sharing options...
Shug7272 Posted April 29, 2006 CID Share Posted April 29, 2006 Yea you shouldnt notice a problem.. you should make sure you use a new splitter in good repair and try not to use long lengths of cable. If you think you are having problems you can have your ISP test the line. Quote Link to comment https://testmy.net/ipb/topic/13064-cable-splitting/#findComment-139152 Share on other sites More sharing options...
amish Posted April 29, 2006 Author CID Share Posted April 29, 2006 Yeah, it's 6ft each cable, of radioshack with gold ends (not sure if that really does make a difference, for what it's worth) and a radioshack splitter. Quote Link to comment https://testmy.net/ipb/topic/13064-cable-splitting/#findComment-139154 Share on other sites More sharing options...
Shug7272 Posted April 29, 2006 CID Share Posted April 29, 2006 Yea actually if the signal comes in strong and you use an old nasty splitter or long damaged pieces of cable it can degrade. So with your setup you are probably good. Quote Link to comment https://testmy.net/ipb/topic/13064-cable-splitting/#findComment-139156 Share on other sites More sharing options...
dn0 Posted April 29, 2006 CID Share Posted April 29, 2006 Alright, found some info for the TJ715. It should still be 192.168.100.1. It should prompt for a password at some point; password is icu4at! Give that a shot, there is a little bit more to it if it s a TJ615 model. Quote Link to comment https://testmy.net/ipb/topic/13064-cable-splitting/#findComment-139157 Share on other sites More sharing options...
amish Posted April 29, 2006 Author CID Share Posted April 29, 2006 Well now the link, 192.168.100.1, isn't working. I know it worked earlier as I used it. It never prompted for a password and there were only two tabs to see info on it. Quote Link to comment https://testmy.net/ipb/topic/13064-cable-splitting/#findComment-139159 Share on other sites More sharing options...
amish Posted April 29, 2006 Author CID Share Posted April 29, 2006 And it's model is TJ 715X. Quote Link to comment https://testmy.net/ipb/topic/13064-cable-splitting/#findComment-139160 Share on other sites More sharing options...
dn0 Posted April 29, 2006 CID Share Posted April 29, 2006 Well now the link, 192.168.100.1, isn't working. I know it worked earlier as I used it. It never prompted for a password and there were only two tabs to see info on it. Try this link and read the directions for the Terayons. You may need to power cycle the modem. http://www.dslreports.com/faq/7363?navm2=7 Quote Link to comment https://testmy.net/ipb/topic/13064-cable-splitting/#findComment-139162 Share on other sites More sharing options...
amish Posted April 29, 2006 Author CID Share Posted April 29, 2006 Nice, I like this. I can even see all the bandwidth limits etc. This is what it says. Tx Power 50.7 dBmV Rx Power -1.6 dBmV Also, it says I can change the down the downstream frequency, what can I do with that? It is set at 609000000. Quote Link to comment https://testmy.net/ipb/topic/13064-cable-splitting/#findComment-139168 Share on other sites More sharing options...
dn0 Posted April 30, 2006 CID Share Posted April 30, 2006 Are you sure it isn't just telling you the frequency? Your ISP broadcasts the downstream at a set frequency from their head end / hub, and it is whatever frequency they choose. The modem will not sync on any other frequency that is not specifically a Docsis channel, so the answer is you can do nothing with that option. BTW, did you already split your CATV line with the 2 way? If so, your levels still look good. If not, then your upstream power will be pushing the edge at over 54dB, but it will still work, probably without any issues. The downstream power has plenty of leaway. Quote Link to comment https://testmy.net/ipb/topic/13064-cable-splitting/#findComment-139177 Share on other sites More sharing options...
amish Posted April 30, 2006 Author CID Share Posted April 30, 2006 Yeah, it is already split. So you're saying if I were to take away the splitter, I would get more upload speed, or would be it the same? Quote Link to comment https://testmy.net/ipb/topic/13064-cable-splitting/#findComment-139181 Share on other sites More sharing options...
dn0 Posted April 30, 2006 CID Share Posted April 30, 2006 No, you would not get any higher u/l speeds. There is just a working window for the RF levels, and you are still within that window. A change in RF level does not have anything to do with the speeds, that is unless your levels are outside of the window, then you may slow down some and possibly start dropping packets, which is obviously not good. Quote Link to comment https://testmy.net/ipb/topic/13064-cable-splitting/#findComment-139184 Share on other sites More sharing options...
amish Posted April 30, 2006 Author CID Share Posted April 30, 2006 Okay, thanks. Quote Link to comment https://testmy.net/ipb/topic/13064-cable-splitting/#findComment-139186 Share on other sites More sharing options...
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