Minto
Get rid of fluorescent strip lights from your house, only QRM generators for
radio amateurs.
It seems MINIWHIP antennas work better the higher they are installed above
ground which makes me think that the cable connecting the probe to the RX is
in fact the REAL antenna. !!!!!!!!!!!!!!!
A probe antenna should work equally well at ground level in the clear as in
an elevated position.
G3KEV
----- Original Message -----
From: "Minto Witteveen" <[email protected]>
To: <[email protected]>
Sent: Tuesday, August 09, 2011 8:44 PM
Subject: Re: LF: HB9ASB...
> .. And he is even visible on my grabber!
> I raised the miniwhip from +4 to +11 meters (large fishing rod in the
> backyard).
> Signal levels increased by 15 dB. Noise level was raised too, but the QRM
> from my fluorescent lights in the house no longer show up. so there must
be
> some improvement.
> Tomorrow I will again measure de DCF39 to noise ratio.
>
> 73's
> Minto pa3bca
>
>
>
> --------------------------------------------------------------------------
> Ceterum censeo Carthaginem delendam esse
> -----Original Message-----
> From: Stefan Schäfer
> Sent: Tuesday, August 09, 2011 21:10
> To: [email protected]
> Subject: LF: HB9ASB...
>
> ...now joins in at 137.695! 25 dB SNR here.
>
> Looking forward to a opening band tonite...
>
> 73, Stefan
>
>
|
