Cable TV Scanning
2 TV's, one in living room and one in bedroom. Scan the living room TV on cable an it pick's up all 50 channels on the park cable system. (Optel) When I scan the bedroom TV on cable it will not pic...
Forum Discussion
1995brave wrote:
I use Channel Vision splitters. P/N HS-2 for two way. They are 5Mhz to 1Ghz all ports DC passing.
MEH.
That is nothing more than another PASSIVE splitter.
HERE
There is nothing "special" or "better" with that brand.
It has the SAME loss as any other PASSIVE 2 way splitter..
"Insertion loss: = 3.5dB
Max insertion loss @ 1GHz = 4.5dB"
EVERY "PASSIVE" splitter uses nothing more than RESISTORS inside. 2Way passive splitters use 75 ohm resistors, a 3way with use 75 ohm on one port and another 75 ohm resistor feeds two more 75 ohm resistors for the second and third port.
Unless it is a specialty splitter designed to block DC they will all pass DC.
for the record, 3DB IS HALF the signal so 3.5 DB loss per port is MORE THAN HALF of your signal lost..
For the OP, there is a good chance that you may have a 3Way splitter, with those one port may have 3.5DB loss and the other two will have 7DB loss.. Your back TV may be on that 7DB loss..
However, typically when on cable, there is PLENTY of signal typically to get over that loss.
The only way to diagnose is to bypass the RV wiring temporarily by running a coax directly from the park connection to your back TV and retrying the scan..
If it works then you have a signal loss issue, that could be in your RV or it could be the campgrounds.. In most campgrounds they feed the cable hookup via multiport splitters, you could have a bad splitter on the park side of things.. I have run into this.
To check that connect your RV to a different campsite port and see if that helps..
If a different campsite hookup works better than have the campground replace their splitter at your site.
If it doesn't help, then you may need to find your splitter to see if you have a three way in there..
