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An interesting question.....

D

dahi

Guest
....up until recently I've had use of temporary office workspace in College Station. A cable outlet from the local cable tv system was provided...so one day I hooked up my portable stereo system to it (for FM stations) and discovered that many major FM stations were still being carried on it (my last time around for this was over 15 years ago). Most of the signals came in just fine except for KMJQ: the 102.1 channel carried on this cable had splash and slop from another channel that's already reassigned to another spot (appearently guarding against that occurence was not very feasible). The actual question is, is it possible to purchase an external booster and/or filtering device to hook up to the stereo receiver (to make the tuner more selective and less sensitive to slop, splatter and other garbage) when using the cable system when in the area next time?

It would be nice to have the choice of KMJQ back when in that area again!

Looking forward to interesting replies......and thanks for reading this BS!
 
KANM

> ....up until recently I've had use of temporary office
> workspace in College Station. A cable outlet from the local
> cable tv system was provided...so one day I hooked up my
> portable stereo system to it (for FM stations) and
> discovered that many major FM stations were still being
> carried on it (my last time around for this was over 15
> years ago). Most of the signals came in just fine except
> for KMJQ: the 102.1 channel carried on this cable had splash
> and slop from another channel that's already reassigned to
> another spot (appearently guarding against that occurence
> was not very feasible). The actual question is, is it
> possible to purchase an external booster and/or filtering
> device to hook up to the stereo receiver (to make the tuner
> more selective and less sensitive to slop, splatter and
> other garbage) when using the cable system when in the area
> next time?
>

did you listen to KANM? A&M's student radio is only heard through the cable tv feed. I worked at it there one semester.
this was back when FM only had about 3 signals and you could barely get 101.<P ID="signature">______________

"I'll see you Left of the Dial!"</P>
 
Re: KANM

> > ....up until recently I've had use of temporary office
> > workspace in College Station. A cable outlet from the
> local
> > cable tv system was provided...so one day I hooked up my
> > portable stereo system to it (for FM stations) and
> > discovered that many major FM stations were still being
> > carried on it (my last time around for this was over 15
> > years ago). Most of the signals came in just fine except
> > for KMJQ: the 102.1 channel carried on this cable had
> splash
> > and slop from another channel that's already reassigned to
>
> > another spot (appearently guarding against that occurence
> > was not very feasible). The actual question is, is it
> > possible to purchase an external booster and/or filtering
> > device to hook up to the stereo receiver (to make the
> tuner
> > more selective and less sensitive to slop, splatter and
> > other garbage) when using the cable system when in the
> area
> > next time?
> >
>
> did you listen to KANM? A&M's student radio is only heard
> through the cable tv feed. I worked at it there one
> semester.
> this was back when FM only had about 3 signals and you could
> barely get 101.
>
.....if memory serves me correctly I believe that was the 99.9 spot on the cable tv feed at the time....last time I heard it there was maybe in the mid 80's while attending the Blinn College campus there for both summer semesters...recall that there was a KANM night every Sunday night at the Sundance Club (?.....I believe...).....anyways, back to the tuner, 99.9 was a dead spot to me (out of phase stereo pilot that's barely beating out another station that's trying to break into the 99.9 spot IIRC). Nowdays, on the A&M Campus and immediate vicinity KANM is a licensed part 15 station at 1690 AM.....didn't sound too bad for being on AM.....
 
> The actual question is, is it
> possible to purchase an external booster and/or filtering
> device to hook up to the stereo receiver (to make the tuner
> more selective and less sensitive to slop, splatter and
> other garbage) when using the cable system when in the area
> next time?
>

Back in the days when it was commonplace for cable systems to have cable FM stations, many cable systems provided a TV/FM separator if you wanted to connect you home stereo to the cable. It looked exactly like a standard 75 ohm splitter, but had an output for the TV that notched out the FM band, and an output for FM that only passed 88-108 MHz. I still have one from my days living in Arlington in the 80's when I had Arlington Telecable. Check Radio Shack or MCM Electronics at http://www.mcmelectronics.com.
 
> ....up until recently I've had use of temporary office
> workspace in College Station. A cable outlet from the local
> cable tv system was provided...so one day I hooked up my
> portable stereo system to it (for FM stations) and
> discovered that many major FM stations were still being
> carried on it (my last time around for this was over 15
> years ago). Most of the signals came in just fine except
> for KMJQ: the 102.1 channel carried on this cable had splash
> and slop from another channel that's already reassigned to
> another spot (appearently guarding against that occurence
> was not very feasible). The actual question is, is it
> possible to purchase an external booster and/or filtering
> device to hook up to the stereo receiver (to make the tuner
> more selective and less sensitive to slop, splatter and
> other garbage) when using the cable system when in the area
> next time?

No...the signal on the cable is being sent from the cable head end and is a low power modulator (flea power xmtr!) and thus you are at its mercy....
There is NOTHING to allow you to hear KMJQ on that system if they have another signal on an adj channel down the cable....
Its just like Cable TV.....what they send is what you receive and nothing else..
It is NOT an antenna tied to the cable with amps...it is much more than that (normally they use convertors or remodulators which basically receive the signal on one freq, convert it down to a LOW freq or audio/video and then apply that to a modulator...like the one in your VCR...which is set on another channel or the same freq!)

sorry
 
> Back in the days when it was commonplace for cable systems
> to have cable FM stations, many cable systems provided a
> TV/FM separator if you wanted to connect you home stereo to
> the cable. It looked exactly like a standard 75 ohm
> splitter, but had an output for the TV that notched out the
> FM band, and an output for FM that only passed 88-108 MHz. I
> still have one from my days living in Arlington in the 80's
> when I had Arlington Telecable. Check Radio Shack or MCM
> Electronics at http://www.mcmelectronics.com.

Actually, you DONT need that...the FM band is above TV 6 and there is a lot of RF between FM and TV 7 (even the midband channels below 7 are well above the FM band)..if you checked those separators, they really did not offer that much isolation...and werent much anything more than a regular splitter...
Just a marketing ploy....
I use standard splitters all the time...not a problem.......
 
> Actually, you DONT need that...the FM band is above TV 6 and
> there is a lot of RF between FM and TV 7 (even the midband
> channels below 7 are well above the FM band)..if you checked
> those separators, they really did not offer that much
> isolation...and werent much anything more than a regular
> splitter...
> Just a marketing ploy....
> I use standard splitters all the time...not a problem.......
>

Oh, yes I realize that there is almost 70 MHz worth of bandwith above the FM and channel 7. These bands include aircraft, pagers, public safety, 2m amateur band, NOAA weather radio, and much more. However, the separator that I've got is not just a standard splitter and will not pass FM through the TV port, and will not pass TV through the FM port. There is also a small amount of attenuation on the FM port, about 3 dB I think, that helps to reduce the level of over-the-air signals that sneak into the cable, for instance, from local FM stations.

If you have a lot a over-the-air signals overriding the cable FM signals, you might be able to accomplish the same thing with an inline attenuator, maybe 3 or 5 dB.
 
> > ....up until recently I've had use of temporary office
> > workspace in College Station. A cable outlet from the
> local
> > cable tv system was provided...so one day I hooked up my
> > portable stereo system to it (for FM stations) and
> > discovered that many major FM stations were still being
> > carried on it (my last time around for this was over 15
> > years ago). Most of the signals came in just fine except
> > for KMJQ: the 102.1 channel carried on this cable had
> splash
> > and slop from another channel that's already reassigned to
>
> > another spot (appearently guarding against that occurence
> > was not very feasible). The actual question is, is it
> > possible to purchase an external booster and/or filtering
> > device to hook up to the stereo receiver (to make the
> tuner
> > more selective and less sensitive to slop, splatter and
> > other garbage) when using the cable system when in the
> area
> > next time?
>
> No...the signal on the cable is being sent from the cable
> head end and is a low power modulator (flea power xmtr!) and
> thus you are at its mercy....
> There is NOTHING to allow you to hear KMJQ on that system if
> they have another signal on an adj channel down the
> cable....
> Its just like Cable TV.....what they send is what you
> receive and nothing else..
> It is NOT an antenna tied to the cable with amps...it is
> much more than that (normally they use convertors or
> remodulators which basically receive the signal on one freq,
> convert it down to a LOW freq or audio/video and then apply
> that to a modulator...like the one in your VCR...which is
> set on another channel or the same freq!)
>
> sorry
>
CW, thanks for the info!....forgot to mention that another casualty there, too is KLOL 101.1....also suffering from the same kind dilemma afflicting KMJQ.....it reminds one of how much more times have changed for listening to FM stations from Houston on that particular cable system since the 80's and early 90's........
 
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