Quote:
|
1) Given that I can clearly receive channel 10 - WSMV (see strength report linked in my OP) I would have expected that despite any and all sub-optimal conditions, I should be able also receive channel 27 (WKRN), channel 8 (WNPT) and most likely channel 15 (WZTV) and channel 25 (WTVF).
|
An antenna will only be able to receive signals that are present at it's location. All of the variables we've acknowledged can easily combine to make some signals strong and others weak at a given point in space. Transmission impairments are rarely if ever the same at different frequencies. It's entirely possible that moving the antenna a few inches or feet will put it in a location that is favorable to different frequencies. If the antenna was located outside, clear of obstructions, several impediments to reliable reception may be eliminated... in which case, your expectations and assumptions would stand a better chance of being fulfilled. But as you add more impediments to reception, the net result becomes less and less predictable.
Quote:
2) I do not understand the lack of correlation between the channel as reported by my television and what is shown on the signal-strength report.
3) Possibly related to (2), I have channels that I can't correlate at all on the report.
|
Your OP lists the following:
- 4.1 - WSMV
- 4.2 - CMT
- 39.1
- 39.2
- 44.1 - WJFB
- 44.2 -
TV Fool focuses on reception of the real channel, regardless of how many virtual channels are carried on the channel. Regardless of how many virtual channels are actually carried, TV Fool only lists the first one as an aid to correlating call sign, real channel number and virtual channel(s). Resources such as rabbitears.info provide more help with identifying the virtual channels.
Per rabbitears.info, WSMV carries two traditional TV channels and a mobile DTV channel. Your TV sees the MPEG-2 mux overhead in the data stream and recognizes the to virtual channels, 4.1 and 4.2 as video/audio streams that it can display. The MDTV channel is not shown to you by the TV because it doesn't have the capability to decode and display that format.
Virtual channels 39.1 and 39.2 are no doubt from WHTN. Many of the smaller stations lack the hardware and or staff that's needed to edit and maintain the guide data stream that would provide the call sign, and program guide, as a result, your TV may have no information to label the virtual channel with.
The information at rabbitears strongly suggests that the TV Fool database entry for WJFB is in error. TV Fool depends primarily on the FCC database (which has a few errors) for our information about each station. Because we are not primarily focused on tracking virtual channels, but rather on helping people get information about the physical 'real' channels, (so the can receive what ever may be carried), I would deffer to sources such as rabittears for information on virtual channels. The two virtual channels you listed, 44.1 & 44.2 agree with the data provided by rabbitears.info.
This link may prove helpful to you,
http://www.rabbitears.info/market.ph...n=WSMV#station
Your opening statement,
Quote:
|
Given the limitations on my antenna placement, my reception may just be "it is what it is"
|
is quite true, particularly if you can not or will not consider any changes to the location or type of antenna.