"Owen Duffy" wrote in message
...
On Tue, 29 Aug 2006 07:43:15 GMT, "Lee"
wrote:


I have just bought a Yaesu VR5000 receiver/scanner and while looking
round
for a wideband antenna
...

Scanners are notorious for a lack of front end selectivity and
resultant high intermodulation products / noise.

Yes i am taking a bit of a chance with a wideband antenna Owen but
if i can resolve a signal, it is a start.....i have built a bow tie
can-tenna
for 23cms which seems to work okay, now, i`ll build one for 13 cms
with a corner reflector, only because i know something is there!!!.


Sometimes they depend on narrow band antennas to supplement their
meagre front end selectivity.

Agreed!!.

In the absense of external front end selectivity, you may find that
the realisable sensitivity is quite a deal higher (tens of dB worse)
than specification, depending on your own RF environment.

That is where i will need a narrow filter pre-amp which will be bought (or
built)
when needed.....

Thanks for your input Owen, the Yaesu is certainly a great deal better than
the
AOR 2002 which is as wide as a barn door, but served its purpose!!!.....

Regards..

Lee....G6ZSG....