Jensen JDTV-430 - Manual (Page 7)

User manual of JDTV-430, page 6
USING THE ANTENNAS
For normal outdoor use, fully extend the built-in antenna for best signal reception.
Reception of a stable picture may be impaired if:
buildings or tall trees are blocking the broadcasting signals;
it is snowing or raining heavily;
you are moving along with your TV set;
you are operating the TV set inside a moving vehicle;
there are external interferences due to other RF devices nearby.
Notes
Digital TV reception requires the TV set to be stationary while watching.
Keep the built-in antenna stored folded and away from any fast moving or current carrying appliances
such as a working fan.
If pixilation of the picture or weak reception occurs, try using the included magnetic base external antenna to
improve the reception.
Fully extend the antenna cable and plug the MCX connector of the external antenna into the Antenna Jack
of the TV set. Then try placing the external antenna in different locations, e.g. a window, until a stable
picture can be obtained. The external antenna has a magnetic base for you to attach securely to a metal
(iron) surface for improved reception.
GETTING STARTED
When first powered on and there is no channel information stored in the
memory, the TV screen will show a dialog for auto scan setup, press OK
button to start auto scan mode.