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Guest Message by DevFuse

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Overpopulated SWM symptoms


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23 replies to this topic

#21 OFFLINE   texasbrit

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Posted 24 July 2008 - 12:00 PM

I recall reading in another thread that the internal diplexer didn't work very well with VHF-low OTA signals. Perhaps that loss could affect the internet connection.



I saw the same posts but the OP came back and said it turned out to be (I think) an antenna issue, the diplexer was fine with VHF-lo..

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#22 OFFLINE   veryoldschool

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Posted 24 July 2008 - 12:09 PM

I saw the same posts but the OP came back and said it turned out to be (I think) an antenna issue, the diplexer was fine with VHF-lo..

"Many" have said/posted that the SWM diplexer is "a bit lossy" compared to other diplexers.
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#23 OFFLINE   texasbrit

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Posted 24 July 2008 - 04:06 PM

"Many" have said/posted that the SWM diplexer is "a bit lossy" compared to other diplexers.


Yes, but I think many people are not taking into account that the OTA signal is already split once in the SWM so the signal on each SWM output is already 3db down before it leaves the SWM. If you have multiple OTA tuners and drive half your tuners from one SWM output and half from the other I think you will see the same results as diplexing OTA in after the SWM onto a single split line. At least it looks that way to me (on a sample of one!)

#24 OFFLINE   Bkegg

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Posted 07 November 2008 - 02:32 AM

When a SWM capable receiver is connected to the SWM and powered on, the SWM assigns one/two of it's available channels to that tuner (or tuners if the receiver is a dvr) If a receiver is connected that would supass the capability of the SWM, the SWM simply doesn't assign an output channel to that tuner. So, only the first 8 tuners connected and powered on would work. There would not be an intermittent issue.

To me, this sounds more like either a potential grounding issue or possibly a power inserter going haywire. Just my $.02


I asked this question on my last post then read another and got the answer. Thank you for that input.

I just got into the MDU a month or so ago. I have one complex in the Houston area. 15 customers one service call that was of no fault of the system itself. The system along with the flexability of the SWM8 makes this maybe the most awesome thing I have ever had the pleasure of working with.




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