Re: LF: G3KEV

[DK7FC <selberdenken@posteo.de>]

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

On 27 Nov 2015, at 23:34, DK7FC <selberdenken@posteo.de> wrote:

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

On 27 Nov 2015, at 16:05, DK7FC <selberdenken@posteo.de> wrote:

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