[opendtv] Re: News: The Real Fight Over Fake News

  • From: John Willkie <johnwillkie@xxxxxxxxxxxxx>
  • To: opendtv@xxxxxxxxxxxxx
  • Date: Mon, 9 Jun 2008 10:40:06 -0700 (GMT-07:00)

VHF ends at Channel 13? 

Last time I checked, VHF ended "around" 333 MHz, and Channel 13 topped out 
"well" below that.  Indeed, ISTR that the upper band limit of Channel 13 is 
'around' 286 MHz.  (That's more than 10% down from the upper band limit.)

Indeed, unless the FCC has made serial mistakes, UHF tops out at 3.33 GHZ, and 
VHF starts at 33 MHz.

"The highest VHF-TV channel is numbered 13" would seem to be a closer fit to 
reality. 

John Willkie, who has written "tv-channel-to-frequency" (and vice-versa) 
programs so many times, this stuff just flows from his finger tips. 

-----Original Message-----
>From: John Shutt <shuttj@xxxxxxxxx>
>Sent: Jun 9, 2008 9:11 AM
>To: opendtv@xxxxxxxxxxxxx
>Subject: [opendtv] Re: News: The Real Fight Over Fake News
>
>Cable systems often put one or two premium services on VHF channels (which I 
>have on very good authority end at channel 13) and trapped the signal with a 
>notch filter for those homes who do not subscribe to the service. When a 
>subscriber moves,  if the subscriber has no cable box or returned it to the 
>office, the cable company will often do what is called a "no-truck 
>disconnect."  The cable company will not take the effort to roll a truck out 
>to physically disconnect the drop, but instead put it on a list for a slow 
>day (which often never comes.)
>
>If you soon after came along and subscribed, then it is very likely that the 
>cable company lost track of the fact that the previous customer subscribed 
>to HBO, and that the trap was not in place.
>
>Alternately, if you were the original subscriber and had the drop wired to 
>house, it is possible that the install techs neglected to install the 
>channel 5 filter in the first place, so the cable company would not have 
>caught the error until they eventually got around to performing an audit in 
>your neighborhood.
>
>In either case, I doubt that the same holds for the digital HBO in the clear 
>that John W. reported.  I don't know of any QAM channels that are physically 
>trapped, but instead are given conditional access that requires an STB.
>
>John
>
>----- Original Message ----- 
>From: "Tom Barry" <trbarry@xxxxxxxxxxx>
>
>
>> Back in Detroit on MediaOne->AT&T->Comcast (same cable subscription) I 
>> could get one channel of HBO as something like channel 5 analog for the 
>> longest time, maybe 10-20 years without subscribing to anything more than 
>> (extended?) basic cable.  Because of the channel placement I had to assume 
>> it was on purpose and they knew about it.  Whatever reason, maybe that 
>> carries over to digital.
>
>
>
> 
> 
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