Every radio amateur should have 3 phase to take care of all eventualities You must be able to apply pressure when You hear rare DX to avoid disappointment Avoid single phase when serious about long haul DX The above is a quote from Chunkok wireless Guide --Shanghai 1857 VS6HI
Sent from my iPhone
Ok. Large is relative. I mean something that can be run from a normal
230V mains socket :-) (single phase!)
It would be easy to build a transformer, a termination resistor, a
MOSFET driver IC as a simple PA stage, a CLC pi filter... That would
rise the level to 20 dBm and allows to connect the PA you're using for
Opera so far.
If you can use an iPhone, you could do that too ;-) Just a thought.
73
Am 28.11.2015 00:45, schrieb Mal Hamilton:
Real/large PA's scare me --too dangerous (:-
GL mal/g3kev
Sent from my iPhone
Hi Mal,
Then continue to transmit. I bet there is more DX possible, even with
that low power level.
Will you build an exciter to drive your real PA?
You could make it to FR5ZX, nearly 10000 km!
73, Stefan
Am 27.11.2015 23:01, schrieb Mal Hamilton:
Tnx Stefan
Surprised to get a report
Using a IC-706 vy little rf out -vy Qrp
Just testing and it works FB
0 dB
73 mal/g3kev
Sent from my iPhone
Mal,
I just found:
3 spots:
Timestamp |
Call |
MHz |
SNR |
Drift |
Grid |
Pwr |
Reporter |
RGrid |
km |
az |
2015-11-27 15:52 |
G3KEV |
0.475702 |
-29 |
0 |
IO94sh |
5 |
M0LMH |
IO93gx |
75 |
241 |
2015-11-27 15:44 |
G3KEV |
0.475702 |
-27 |
0 |
IO94sh |
5 |
M0LMH |
IO93gx |
75 |
241 |
2015-11-27 14:44 |
G3KEV |
0.475692 |
-28 |
0 |
IO94sh |
5 |
M0LMH |
IO93gx |
75 |
241 |
My congratulations! So now how do you generate that signal? A Raspi?
That could explain the SNR. I guess you will add some 10 dB soon? :-)
Tell us!
73, Stefan
|