Stefan
Several factors.
During daytime hundreds of K/metres depending on Antennas and power.
I can hear the German Beacond all day long Q5 and S3- 6 on 505 Khz
I can work EI0CF all day every day on CW
I can also work the PA0 stns during daytime at S9 es plus
I use proper antennas and not uProbes. The problem in most cases is poor
Receiving because of poor antennas or noisy environment like LF
During darkness there is enhanced propagation and world wide communications
is possible, certainly the USA to the West and Moscow to the EAST
The DX stations that I work have proper wire antennas eg Large Loops, inv L
systems for both TX es RX
LF es MF bands require Large antennas for consistant reliability for QSO
purposes both RX as well as TX.
It is easy to BEACON, all that is needed is an OSCILLATOR, and a piece of
wire but to communicate on CW both ways is a different story.
BEACON signal and QSL via Internet is EASY and that is where some go wrong
and their EARS become LAZY and no good for a QSO.
Small micro ferrite stick antennas work after a fashion but do not expect
the same results as those stations with proper antennas for the job
73 De G3KEV
----- Original Message -----
From: "Stefan Schäfer" <[email protected]>
To: <[email protected]>
Sent: Sunday, June 17, 2012 2:03 PM
Subject: LF: Further MF impressions
> MF,
>
> I just thought my receiver isn't working correctly. I thought the xtal
> does not start to oscillate due to the higher ambient temperatures in
> the afternoon. But later i found that the band noise on MF is
> significantly lower than in the evening, at least 20 dB. So now i see
> that the band noise is about 5 dB above my soundcard noise with the
> current setup.
>
> What do others know about the ground wave range in summer and in the
> afternoon? When does the band open? Similar to LF?
>
> BTW thanks to DF6NM for the grabber. Nice tool to get some experience in
> these first days...
>
> 73, Stefan/DK7FC
>
|
