3-Way Splitter Recommendation Sought

Floyd wrote:

I need to split the cable coming in from the street (Time Warner Cable
NYC) 3 ways;

* SA8300 HD DVR
* Roadrunner cable modem
* ATI QAM tuner on desktop computer

What's the best 3-way splitter I could used for this application?

Thanks,

The cable modem is a two-way device. The download frequency is probably
good for the typical splitter, but the upload frequency is typically in the
5-50mhz range, below the TV channels. If your modem upload speed suffers
with a splitter, make sure you are using one that will carry those low
frequencies, since some splitters specify a low range limit of 50mhz. They
may still pass those low freqs, maybe just not as well.

Still looking for those 47 MHz or 50 MHz low end splitters. All the ones I
can find have a low end of 5 MHz. Got a URL?

Agent_C wrote:

What's the best 3-way splitter I could used for this application?

Woooossshhhh....!

Guys, I appreciate all the info, but you're really making my head spin
at this point...

I'm just looking for a specific recommendation.

OK. We don't know your signal levels, but...

http://www.pacificcable.com/Picture_...taName=201-103 (3.5dB leg
to the cable modem.)

If your DVR or QAM tuner seem signal starved, try

http://www.pacificcable.com/Picture_...taName=201-101

Still looking for those 47 MHz or 50 MHz low end splitters. All the ones I
can find have a low end of 5 MHz. Got a URL?

Since the introduction of the cable modem, most splitters are rated around
5-900mhz, but back when splitters were designed for antenna use only there
were some with the higher low-end that started at ch-2. You never know what
you might find in a junk box full of old stuff. I looked in one old junk
box but didn't find any of them.

Floyd wrote:

Still looking for those 47 MHz or 50 MHz low end splitters. All the ones I
can find have a low end of 5 MHz. Got a URL?

Since the introduction of the cable modem, most splitters are rated around
5-900mhz, but back when splitters were designed for antenna use only there
were some with the higher low-end that started at ch-2. You never know what
you might find in a junk box full of old stuff. I looked in one old junk
box but didn't find any of them.

I doubt if the OP was going to use a 20 year-old splitter, or even had
any in an "old junk box."

I have one that corroded onto the coax (I live 100' from the ocean.) It
was from an antenna system I took *down* 20 years ago. It has (had) a
low end of 5 MHz.

I would get a 3 way unbalanced splitter with 5 to 1000mhz passband, with 5
to 42mhz reverse frequency. Again, connect the 3.5db leg to the cable modem
and the 7db legs to your dvr and desktop computer. Make sure that the
splitter will work in reverse or your modem won't respond back. I don't
think you'll go wrong.Ask a cable guy for a splitter and I'm sure they will
give you one.
"UCLAN" wrote in message
...
Agent_C wrote:

What's the best 3-way splitter I could used for this application?

Woooossshhhh....!

Guys, I appreciate all the info, but you're really making my head spin
at this point...

I'm just looking for a specific recommendation.

OK. We don't know your signal levels, but...

http://www.pacificcable.com/Picture_...taName=201-103 (3.5dB leg
to the cable modem.)

If your DVR or QAM tuner seem signal starved, try

http://www.pacificcable.com/Picture_...taName=201-101

[This followup was posted to alt.tv.tech.hdtv and a copy was sent to the
cited author.]

In article , Agent-C-hates-
says...
I need to split the cable coming in from the street (Time Warner Cable
NYC) 3 ways;

* SA8300 HD DVR
* Roadrunner cable modem
* ATI QAM tuner on desktop computer

What's the best 3-way splitter I could used for this application?

If possible, hook up the modem directly, with no splitter, and note your
signal levels (typically on some page accessible from
http://192.168.100.1). A cable modem typically likes downstream values
between +10 and -10dB, and upstream of 50dB or less. With 'best case'
numbers, you can figure out how much loss you can give to the modem to
give more to the TV's. As long as the modem's signals are in range, and
your SNR is over 33dB, your speeds will not be affected. I'd rather give
more signal to the TV, as pixelation is very annoying.

--
If there is a no_junk in my address, please REMOVE it before replying!
All junk mail senders will be prosecuted to the fullest extent of the
law!!
http://home.att.net/~andyross

"Floyd" wrote in message
...

Still looking for those 47 MHz or 50 MHz low end splitters. All the ones
I
can find have a low end of 5 MHz. Got a URL?

Since the introduction of the cable modem, most splitters are rated around
5-900mhz, but back when splitters were designed for antenna use only there
were some with the higher low-end that started at ch-2. You never know
what you might find in a junk box full of old stuff. I looked in one old
junk box but didn't find any of them.


Just found a 4-way 4-450 Mhz splitter for CATV. Don't know if this would
work, but here is the address:
http://www.geocities.com/rxtxtubes/pa00028.htm

The one you want is TUSA model SP-403 towards the bottom of the page under
TV/FM Baluns and Matching Transformers.

The makers of the splitters will not reveal the capabilities of their
products. You can check all the makers of the splitters and they don't
specify weather they work in reverse or not.
"UCLAN" wrote in message
...
Floyd wrote:

Still looking for those 47 MHz or 50 MHz low end splitters. All the ones
I
can find have a low end of 5 MHz. Got a URL?

Since the introduction of the cable modem, most splitters are rated
around 5-900mhz, but back when splitters were designed for antenna use
only there were some with the higher low-end that started at ch-2. You
never know what you might find in a junk box full of old stuff. I looked
in one old junk box but didn't find any of them.

I doubt if the OP was going to use a 20 year-old splitter, or even had
any in an "old junk box."

I have one that corroded onto the coax (I live 100' from the ocean.) It
was from an antenna system I took *down* 20 years ago. It has (had) a
low end of 5 MHz.

PhxGrunge wrote:

"Floyd" wrote in message
...

Still looking for those 47 MHz or 50 MHz low end splitters. All the ones
I
can find have a low end of 5 MHz. Got a URL?

Since the introduction of the cable modem, most splitters are rated around
5-900mhz, but back when splitters were designed for antenna use only there
were some with the higher low-end that started at ch-2. You never know
what you might find in a junk box full of old stuff. I looked in one old
junk box but didn't find any of them.

Just found a 4-way 4-450 Mhz splitter for CATV. Don't know if this would
work, but here is the address:
http://www.geocities.com/rxtxtubes/pa00028.htm

Why would he even consider using a splitter with an upper end of 450 MHz?

On Tue, 28 Jul 2009 11:23:35 -0700, UCLAN wrote:

OK. We don't know your signal levels, but...

http://www.pacificcable.com/Picture_...taName=201-103 (3.5dB leg
to the cable modem.)

If your DVR or QAM tuner seem signal starved, try

http://www.pacificcable.com/Picture_...taName=201-101

Thanks! Does the following shed any light:

On the SA8300HD DVR:

Control RF: 89.500 MHz -3 DBmV
Reverse RF: 25.500 MHz 34 DBmV

On the Cable modem (Linksys WCG200):

Downstream Power: …… 1.3 dBmV .
SNR: 39.1 dB
Upstream Power:........... 51.0 dBmV

A_C