
WMLW is now available on Time Warner Cable channel 7
Charter Cable channel 8 or channel 23 in sheboygan
Over the air on broadcast channel 41
(WMLW) THE
BASICS
Television signals
are divided into two bands: VHF and UHF. The VHF band includes
broadcast channels
2 through 13 (54-216 MHz) and UHF includes broadcast channels
14 through 69 (470-800 MHz). Due to the higher transmission
frequencies involved, UHF channels may require somewhat different
reception methods than VHF channels to be received properly.
This is especially important for the new high definition
(HDTV) digital television signals, most of which are UHF.
ROOFTOP
ANTENNAS
Traditional rooftop antennas have always been the best method available for
quality reception of television signals, both VHF and UHF. A good traditional
rooftop antenna (the type with horizontal metal elements) will always outperform
other types of antennas. This type of antenna is a very good investment for
proper reception of all current TV channels as well as the new HDTV channels.
The
most common problems encountered with existing rooftop
antennas involve age, improper aiming, tarnished or corroded
connections at the antenna, and outdated downlead cable.
Upper UHF channels are the first to get snowy when these
problems occur. Ghosting is usually related to insufficient
antenna height and/or improper aiming.
If your antenna system still
uses the old flat style (300 ohm) twin-lead cable, it is
probably old enough to consider replacing the entire antenna
system with a modern one. For Milwaukee and surrounding
counties, a rooftop antenna such as the Radio Shack VU-110
(stock no. 15-2153) works quite well. Outlying areas will
require a larger antenna such as the Radio Shack VU-210
(stock no. 21-2157). Always use foil shielded RG-6 coaxial
cable (Radio Shack 15-1549) and a good matching transformer
(Radio Shack 15-1143).
Antenna aiming is critical.
The shape of most rooftop antennas resembles an arrow.
Ensure that the "arrow" (the small metal elements
of the antenna) are aimed at Lincoln Park (Green Bay & Villard
Ave.). Also ensure that the cable connections at the antenna
and all interior connections are clean and tight. A Scotch-Brite
pad works well to clean connections, although it is probably
best to replace any corroded cable
connectors.
ATTIC ANTENNAS
Attic antennas are typically smaller than rooftop antennas and do not perform
nearly as well. It is very difficult to get any indoor antenna system to
perform consistently with all TV channels. Some TV signals may have a more
difficult time penetrating roofs and walls due to aluminum siding, aluminum
backed insulation, insufficient height, etc. It is not unusual to have
a loss of literally 2/3 of the signal that is in the air by mounting an
antenna indoors. Reception problems have very often been cured by replacing
a small attic antenna with a good traditional rooftop antenna mounted on
a tripod.
RABBIT
EARS
Due to its small size and indoor location, this type of antenna is the least
reliable in terms of providing consistently good reception from all TV stations.
Performance of this type of antenna is so poor that most TV manufacturers have
long since stopped including them with their TV sets. Again, like attic antennas,
TV signals may have a more difficult time penetrating through buildings. If
you must use rabbit ears, try shortening the length of the rabbit ears and
reposition them more horizontally. If you have a loop of bow-tie style antenna,
about all you can do is try repositioning the antenna for best reception or
possibly relocating the TV set. The best solution again is a traditional rooftop
antenna.
SATELLITE
SYSTEMS
Many people have been disappointed with the inability of satellite systems
to provide all local television stations, as well as the requirement of paying
additional monthly fees for only a very limited number of local stations. For
satellite subscribers, a traditional rooftop
antenna is still the best way to go
to ensure proper reception of all local television stations without paying
additional monthly fees. Additionally, many people have been disappointed with
the soft pictures that often occur with small satellite dishes. A rooftop antenna
provides reception of the original TV signal containing full image detail.
Most satellite receivers have
an input jack for a rooftop antenna. When this feature
is utilized, the satellite subscriber has to ability to
switch between satellite services and local television
stations with their remote control. The small TV antennas
which clip onto the rear of a satellite dish do not perform
nearly as well on all channels as a traditional rooftop
antenna.
It is a very good idea to have
a traditional rooftop antenna installed at the same time
as the satellite dish. Very often the small dish can be
attached to the same antenna tripod and mast assembly on
the roof.
SIGNAL AMPLIFIERS
In the Milwaukee area, antenna amplifiers are not necessary with rooftop antenna
systems even when feeding multiple TV sets with antenna splitters (Radio
Shack 15-1141, 15-1142). In outlying areas, however, amplifiers may improve
snowy reception particularly when feeding multiple TV sets.
In cases where only UHF signals
need to be amplified, an amplifier such as the Radio Shack 15-1115 may be used to compensate for long
cable runs and splitter losses. In outlying areas where
amplification is needed for both VHF and UHF channels,
an amplifier such as the Radio Shack 15-1113 may be used.
When using an amplifier, ensure
that it is rated to cover UHF TV signals. Amplifiers are
being sold for cable TV purposes which only cover frequencies
to 550 MHz or so, whereas UHF signals extend to 800 MHz.
It is also possible to amplify signals too much. If you
add an amplifier and your picture has lines, multiple images,
or is very dark, either remove the amplifier or try adding
signal attenuators (Radio Shack 15-1258) to the input of
the amplifier.
When in doubt, always try your
antenna system first hooked up to one TV without any amplification
or splitters, then add UHF or VHF/UHF amplification as
necessary.
VCR HOOKUPS
The best way to hook up a VCR to a modern TV set is to use a 2-way antenna
splitter (Radio Shack 15-1141). Connect the antenna cable to the splitter
input and connect the splitter outputs to the TV and VCR antenna inputs.
Then connect the video and audio outputs of the VCR to the video and audio
inputs on the TV set with appropriate cables (Radio Shack 15-1537). You
will then need to use the Video Input selector on your TV set to view the
VCR.
If your TV set does not have
video and audio inputs, connect the antenna cable to the
antenna input of the VCR. Then connect the Channel 3 output
of the VCR to the antenna input of the TV set. You will
then view the VCR on channel 3.
A problem with UHF reception
may occur when hooking up an older VCR or TV set. On older
units, a flat (300 ohm) twin-lead cable is used for UHF
channels. Ensure that the UHF signal has a complete path
from the antenna through the VCR to the TV set. A band
splitter (Radio Shack 15-1252) may be used to hook up VHF
and UHF signals to a TV or VCR with separate VHF and UHF
inputs.
SAP AUDIO
CHANNEL
An audio channel called SAP (Secondary Audio Program) is available to viewers
who own a stereo TV or VCR. The CBS-58 SAP channel carries Spanish language
translations of selected CBS programming or current weather information for
southeastern Wisconsin provided by NOAA. Not all TV stations are equipped to
transmit the SAP channel.
To listen to the SAP channel, use the remote control that originally came with
your stereo TV set or VCR and access the on-screen menu. Under the Audio menu,
there will be a choice of "Main" audio or "SAP" audio.
Select "SAP" to listen to the SAP channel or return to "Main" to
listen to normal stereo program audio. Some TV sets simply have a "MTS" (Multichannel
Television Sound) button on the remote control to select the audio channels
you wish to listen to. NOTE: Some TVs and VCRs may use slightly different labels
for their on screen programming or remote controls. Please consult the instruction
manual that came with your equipment, or call the store you purchased the equipment
from for assistance.
IF YOU HAVE ANY QUESTIONS REGARDING
ANTENNAS,
PLEASE FEEL FREE TO CALL
US AT (414) 777-5800.