I was using the ferrite rod from you last night, and comparing it to the 2
foot air core. I noticed the dB S/N numbers are Much higher on the ferrite,
and the dBu numbers are much, much higher on the air core. As the numbers
tell, the high signal strength does not help much if the noise is higher too.
I haven't found readable signals on the LW BCB band, but I always
start at 150 and work up. With Gary's 7.5 inch MW antenna, I should start at
the top of the LW BCB and work down I guess. It is quite directional on MW, so
I do need to rotate the antenna on each frequency. Long Island sound [the
Atlantic] is 60 miles south of me, and the ocean toward Europe is even
farther. There is little or no higher ground in either direction, but I am
inland. - FARMERIK
--- In ultralightdx@...,
D1028Gary@... wrote:
>
> Hello All,
>
> For those 7
DXers who have already received the 7.5" AM plug-in loopsticks
> for
the Tecsun PL-360 model (and for the 18 who will), those interested in
> LW beacon reception should be aware that the AM 7.5" loopsticks also
> provide quite sensitive LW reception on the frequencies down to about
300 kHz.
>
> Although an LW-optimized 7.5" plug-in loopstick
(using a 2000 uh coil of
> 40/44 Litz wire on a type 33 ferrite bar)
has already been tested here, and
> found to provide optimal reception
on the lower (international broadcast) LW
> frequencies, the AM 7.5"
loopstick can also provide quite sensitive LW
> reception in relation
to the stock Tecsun PL-300WT, PL-310, PL-380 and PL-360
> models, by
virtue of its much longer 7.5" ferrite bar. This can provide a
> lot of
fun for those who wish to chase LW beacons, even without using a
>
custom LW loopstick.
>
> An example of the 7.5" AM loopstick's
capability on LW is this recording of
> the 350-NY and 352-RNT beacons
mixing together in Puyallup, WA, shortly
> after local midnight: _http://www.mediafire.com/?yyy1dzzfczo_
> (http://www.mediafire.com/?yyy1dzzfczo)
. The experimental LW-optimized loopstick is of
> course more sensitive
for beacon reception, but those of you who have
> already received the
7.5" AM plug-in loopsticks can probably have a lot of fun
> chasing
beacons on the higher LW frequencies, just by using the AM plug-in
>
model you already have.
>
> 73 and Good DX,
> Gary DeBock
(in Puyallup, WA, USA)
>
