|
Posted by Mr Fixit on 01/01/06 17:20
In article <1136092721.763525.138340@g14g2000cwa.googlegroups.com>
"G-squared" <stratus46@yahoo.com> writes:
>John in Detroit wrote:
>> Roy L. Fuchs wrote:
>>
>> >
>> > The entire point was and still is that a preamplified antenna is
>> > better than not having one. PARTICULARLY in the digital realm as
>> > ghost signals, reflections, etc. are not a problem as they are in
>> > analog reception.
Not necessarily.
If you find yourself in the situation where you have 1 or more "locals"
along with 1 or more distant or "fringe" area signals. the broadband
preamp is likely to be swampped with signal from the locals rendering it
useless if not an actual hinderance to the reception of the distant
signal(s).
Multipath *IS* a problem for digital in situations where you don't have
line-of-site and the desired vs. undesired signals are approximately equal
in strength. In areas where the desired signal is at least 3 db stronger
than the undesired signal then it is normally of no consequence except
when you're using a directional antenna (with or without a rotator) and
have it aimed at the wrong signal or when unusual atmospheric conditions
(inversions and tropo ducting) are present.
Navigation:
[Reply to this message]
|