They are there, or not has to do with how you tune to find the signal.  In the 
old days you could move the antenna around to find the sweet spot.  Now, you 
can recieve a clear signal and a few seconds later it just disappears. Of 
course, it is still being transmitted, but its path to the receiver has somehow 
been disrupted.  often moving or turning the antenna does not result in getting 
the signal back.  The best you can do is to try to find an antenna location 
that gives you a clear path to the transmitter.

Andy

  ----- Original Message ----- 
  From: Keith Bierman 
  To: [email protected] 
  Sent: Monday, September 16, 2019 1:58 PM
  Subject: Re: OT over the air antennas


  " digital signals are either there, or they're not."


  Well, yes and no. All signals are analog (even your "digital media" like a 
hard disk). Internally, what is sensed directly by the electronics is analog. 
We then convert the signal to digital ... for example we might sense "+3.4 
volts" ... in a "5v circuit" that's going to read as a "1". 2.4v will read as a 
zero. The tricky cases are between 2.4 and 2.5v, especially if it is moving up 
and down rapidly  .... the result is going to a "zero or a one" which in the 
aggregate is going to result in your having a picture (sharp) or nothing ... 
rather than a fuzzy picture. (and yes, I know antennas aren't going to be 
simply measuring voltage ...).


  Whether you can get good signals inside your home will depend a lot on
    1.. Where the transmitter is
    2.. What's between you and the transmitter
    3.. What your walls are made of (metal? plaster?? drywall???)
    4.. What (if anything) in your house generates noise in those frequencies 
(think big electric motors, for example).
  it may be that you can get good results with careful placement, or you might 
not have a prayer. Even outdoor antennas aren't necessarily effective, or are 
effective only if/when pointed at the specific transmitter (really good 
antennas get around that by actually being a constellation of antennas 
internally ;>...your phone for example ;> ).


  Consumer grade antennas hardly ever provide any useful feedback, a few TV's 
do provide signal strength diagnostics (I haven't seen any with appropriate 
assistive support :<). 




  Keith Bierman
  [email protected]
  303 997 2749




  On Mon, Sep 16, 2019 at 2:24 PM Andy Baracco <[email protected]> wrote:

    My experience has been that indoor digital TV antennas are very suspect. 
    Unlike analog signals, digital signals are either there, or they're not. 
    They are not forgiving.
    I know someone who had some success with this type of antenna when he stuck 
    it out of an open window. He was lucky because the window happened to face 
    in the direction of the TV transmitters, but there were several channels 
    that he couldn't get.

    If you insist on an indoor antenna try to find out where the TV 
transmitters 
    are in relation to your home and place the antenna near to a window facing 
    in that direction.  Also, place it as high in the room as possible.  If 
your 
    dwelling has multiple stories, place the antenna as high in a room on the 
    top story as possible.  Your best bet is an outdoor antenna placed on the 
    roof, or on a mast that is above the roof or any trees.

    Andy

    ----- Original Message ----- 
    From: "Wendy Alling" <[email protected]>
    To: <[email protected]>
    Sent: Monday, September 16, 2019 10:11 AM
    Subject: OT over the air antennas


    > Hi everyone,
    > I'm wanting to purchase an over the air antenna for my Insignia fire TV.
    > Can anyone give me some good recommendations for an antenna?  Thanks for 
    > any
    > help on this.  Please send replies off list.
    >
    > -- 
    > The following information is important for all members of the V iPhone 
    > list.
    >
    > If you have any questions or concerns about the running of this list, or 
    > if you feel that a member's post is inappropriate, please contact the 
    > owners or moderators directly rather than posting on the list itself.
    >
    > Your V iPhone list moderator is Mark Taylor.  Mark can be reached at: 
    > [email protected].  Your list owner is Cara Quinn - you can reach Cara at 
    > [email protected]
    >
    > The archives for this list can be searched at:
    > http://www.mail-archive.com/[email protected]/
    > --- 
    > You received this message because you are subscribed to the Google Groups 
    > "VIPhone" group.
    > To unsubscribe from this group and stop receiving emails from it, send an 
    > email to [email protected].
    > To view this discussion on the web visit 
    > 
https://groups.google.com/d/msgid/viphone/001301d56cb1%24d2082ce0%24761886a0%24%40comcast.net.
 

    -- 
    The following information is important for all members of the V iPhone list.

    If you have any questions or concerns about the running of this list, or if 
you feel that a member's post is inappropriate, please contact the owners or 
moderators directly rather than posting on the list itself.

    Your V iPhone list moderator is Mark Taylor.  Mark can be reached at:  
[email protected].  Your list owner is Cara Quinn - you can reach Cara at 
[email protected]

    The archives for this list can be searched at:
    http://www.mail-archive.com/[email protected]/
    --- 
    You received this message because you are subscribed to the Google Groups 
"VIPhone" group.
    To unsubscribe from this group and stop receiving emails from it, send an 
email to [email protected].
    To view this discussion on the web visit 
https://groups.google.com/d/msgid/viphone/004b01d56ccc%24abe8b320%240201a8c0%40AndyPC.


  -- 
  The following information is important for all members of the V iPhone list.
   
  If you have any questions or concerns about the running of this list, or if 
you feel that a member's post is inappropriate, please contact the owners or 
moderators directly rather than posting on the list itself.
   
  Your V iPhone list moderator is Mark Taylor. Mark can be reached at: 
[email protected]. Your list owner is Cara Quinn - you can reach Cara at 
[email protected]
   
  The archives for this list can be searched at:
  http://www.mail-archive.com/[email protected]/
  --- 
  You received this message because you are subscribed to the Google Groups 
"VIPhone" group.
  To unsubscribe from this group and stop receiving emails from it, send an 
email to [email protected].
  To view this discussion on the web visit 
https://groups.google.com/d/msgid/viphone/CAHSokPzM9M2vM%2BC6oHiOBYc%2B%3DLvgh_oK%3DKKK3q47%3Dqv4u3p1JQ%40mail.gmail.com.

-- 
The following information is important for all members of the V iPhone list.

If you have any questions or concerns about the running of this list, or if you 
feel that a member's post is inappropriate, please contact the owners or 
moderators directly rather than posting on the list itself.

Your V iPhone list moderator is Mark Taylor.  Mark can be reached at:  
[email protected].  Your list owner is Cara Quinn - you can reach Cara at 
[email protected]

The archives for this list can be searched at:
http://www.mail-archive.com/[email protected]/
--- 
You received this message because you are subscribed to the Google Groups 
"VIPhone" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To view this discussion on the web visit 
https://groups.google.com/d/msgid/viphone/009a01d56cd2%24a961ab60%240201a8c0%40AndyPC.

Reply via email to