<br><br><div class="gmail_quote">On Sat, Mar 7, 2009 at 1:44 PM, Brian Wood <span dir="ltr"><<a href="mailto:beww@beww.org">beww@beww.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="im">On Saturday 07 March 2009 10:44:07 Andrew Burgess wrote:<br>
> On Sat, 2009-03-07 at 11:27 -0600, James Oltman wrote:<br>
> > They both connect to the same splitter outside the house.<br>
><br>
> You could try swapping the connections at the splitter to eliminate it<br>
> as a problem.<br>
<br>
</div>Good suggestion. A lot of devices that look like "splitters" are in fact<br>
directional couplers. Hybrid splitters have equal loss to each output port,<br>
which DCs will have a "through" port, typically with 1 db. or less of loss,<br>
and a "tap" port, with anywhere from 8 to 36 db. of loss from the input port.<br>
<br>
A DC will have MUCH better isolation from port to port than a hybrid splitter,<br>
and they do not depend on a proper termination of all ports to achieve this<br>
isolation.<br>
<br>
In other words, if you can sustain the additional loss, a DC is a much better<br>
device to use in splitting signal. This is what the cable company uses on the<br>
pole or in the pedestal, as it is the only way they can maintain the required<br>
isolation from subscriber to subscriber.<br>
<br>
Generally you never saw DCs in homes, until the advent of cable modems, which<br>
were more sensitive to isolation and termination issues than TV sets or<br>
converters.<br>
<font color="#888888"><br>
</font></blockquote></div><br>OK. It seems that there are two things going on. The line coming into my office is being split several ways. One going to the cable modem, two going to 2 analog lines and 2 going to the HDHR. I have moved the HDHR into my living room to test that line, and after hooking it up and viewing the HDHR with the VLC method, I am now getting good quality signal. So I have to do something with my hookups in the office. However, I've gone through every station that the HDHR scanned as not encrypted and I'm still not hearing the music channels. How can I hear them on my TV but not on the HDHR? Is anyone else having this issue? Thanks!<br>
<br>Jim<br>