|
.. you should replace the stainless steel wire with
an aluminium wire...
lighter and with lower losses... in this way you
could improve the signal and I'm sure that Markus will listen to you also via
long path!
.... .. .... ..
73 Marco IK1HSS
----- Original Message -----
Sent: Tuesday, June 25, 2013 9:14
PM
Subject: Re: LF: MF propagation
Hi Eddie,
Yes and it is not new and it has all been
done in the past :-)
The feeder is 10mm diameter stainless steel. I
guess it takes at least 300A before it melts :-) So the limit would be the
withstand voltage of the ceramic isolator, even on MF :-)
73,
Stefan
Am 25.06.2013 22:50, schrieb g3zjo:
Hi
Stefan
Did you look to see if your feeder had taken one hour to melt?
:-)
You know that WSPR's
auto reporting is of no use at all and the quick QSO Mode 599 imi 599 is the
preferred method.
73 Eddie
On 25/06/2013 20:56, Stefan Schäfer
wrote:
MF,
I just saw this:
| Timestamp |
Call |
MHz |
SNR |
Drift |
Grid |
Pwr |
Reporter |
RGrid |
km |
az |
| 2013-06-25 19:48 |
DK7FC |
0.475690 |
0 |
-1 |
JN49ik |
1 |
IW4DXW |
JN64bw |
563 |
151 |
| 2013-06-25 19:42 |
DK7FC |
0.475689 |
-2 |
0 |
JN49ik |
1 |
IW4DXW |
JN64bw |
563 |
151 |
| 2013-06-25 19:36 |
DK7FC |
0.475690 |
-2 |
0 |
JN49ik |
1 |
IW4DXW |
JN64bw |
563 |
151 |
| 2013-06-25 19:24 |
DK7FC |
0.475690 |
-8 |
-1 |
JN49ik |
1 |
IW4DXW |
JN64bw |
563 |
151 |
| 2013-06-25 19:18 |
DK7FC |
0.475690 |
-8 |
0 |
JN49ik |
1 |
IW4DXW |
JN64bw |
563 |
151 |
| 2013-06-25 19:12 |
DK7FC |
0.475690 |
-9 |
0 |
JN49ik |
1 |
IW4DXW |
JN64bw |
563 |
151 |
| 2013-06-25 19:00 |
DK7FC |
0.475690 |
-17 |
0 |
JN49ik |
1 |
IW4DXW |
JN64bw |
563 |
151 |
| 2013-06-25 18:54 |
DK7FC |
0.475689 |
-23 |
0 |
JN49ik |
1 |
IW4DXW |
JN64bw |
563 |
151 |
I find it
interesting to see that the propagation on 630m between JN49 and JN64,
just 563 km, changed so rapidly and consistant from a non-decode to an SNR
of 0 dB, i.e. by about 30 dB in one hour!
At EA2HB we can see now
daily when the band opens from DL to EA and when it closes. A really
useful software!
73,
Stefan/DK7FC
|
|
