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Re: LF: DK7FC WSPR bad quality problem. No!

from [Graham] [Permanent Link][Original]
To: <[email protected]>
Subject: Re: LF: DK7FC WSPR bad quality problem. No!
From: "Graham" <[email protected]>
Date: Sun, 27 Mar 2016 02:56:24 +0100
Importance: Normal
In-reply-to: <[email protected]>
References: <779E45249B3045B8ACB0E9A1E32CC15F@pcn5> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
 
 
G,)
 

From: DK7FC
Sent: Saturday, March 26, 2016 9:13 PM
Subject: Re: LF: DK7FC WSPR bad quality problem. No!

Hello Andy,

There is no TX AF level in my system. The RF is directly generated by the Raspberry Pi at 4x frequency and divided down again inside the PA. It is a concept used by several active OMs, i can assure you.

For high SNR decodes it can sometimes happen that there is a second decode 100 Hz above the main frequency, of course coming from the supply voltage which uses a capacitor of finite size. However that signal is at about -40 dBc, which is quite normal for amateur signals.

It is not the first time that you tell me to stop my transmission and saying that my signal has a poor quality.
If you want to start a discussion about ham-spirit, which is of course a triggering key-word in amateur radio, then say it clearly.

You know, my signal may sometimes cause problems to local stations. But also think about chances like the first contact to FR5ZX, which started and interesting experiment (for some weeks) allowing several OMs to be decodes there.
Try to imagine how the band(s) activity would be if everyone runs 13 dBm.
I think it is good that there are signals in different power leagues.

We can all work and live together.

73, Stefan


Am 26.03.2016 20:36, schrieb F6CNI - Andy - JN19QB:

Hello Stefan.

 

I am sorry, but this evening you have a very poor quality WSPR signal on MF with many splatters, I think it is perhaps due to an overload TX AF level.

 

That is not in phase with the normal ham spirit. So, please be kind to stop now your transmission and correct this problem.

 

On the way, can you say honnestly if your power is not over the legal limit ?

 

Sincerly yours and  my best 73 de Andy.

 

P.S.

 

Have a look below at some reports last hour showing the problem :

 

 

2016-03-26 19:00

DK7FC

0.475683

+12

0

JN49ik

1

PI4THT

JO32kf

336

338

2016-03-26 19:00

DK7FC

0.475783

-25

0

JN49ik

1

PI4THT

JO32kf

336

338

2016-03-26 18:50

DK7FC

0.475783

-23

0

JN49ik

1

PE1RKT

JO22fb

418

316

2016-03-26 18:50

DK7FC

0.475683

+14

1

JN49ik

1

PE1RKT

JO22fb

418

316

2016-03-26 18:40

DK7FC

0.475683

+12

0

JN49ik

1

LA8AV

JO59cs

1153

4

2016-03-26 18:40

DK7FC

0.475783

-24

0

JN49ik

1

LA8AV

JO59cs

1153

4

2016-03-26 18:50

DK7FC

0.475783

-28

0

JN49ik

1

LA3JJ

JO59bh

1102

4

2016-03-26 18:50

DK7FC

0.475683

+10

0

JN49ik

1

LA3JJ

JO59bh

1102

4

2016-03-26 18:40

DK7FC

0.475780

-28

1

JN49ik

1

G3KEV

IO94sh

829

314

2016-03-26 18:40

DK7FC

0.475679

+10

0

JN49ik

1

G3KEV

IO94sh

829

314

2016-03-26 19:10

DK7FC

0.475682

+13

0

JN49ik

1

F6CNI

JN19qb

389

266

2016-03-26 19:10

DK7FC

0.475782

-27

1

JN49ik

1

F6CNI

JN19qb

389

266

2016-03-26 18:30

DK7FC

0.475682

+15

0

JN49ik

1

F5WK

JN18hp

452

261

2016-03-26 18:30

DK7FC

0.475782

-22

0

JN49ik

1

F5WK

JN18hp

452

261

2016-03-26 18:00

DK7FC

0.475680

+19

0

JN49ik

1

DL6II

JO30nx

205

327

2016-03-26 18:00

DK7FC

0.475780

-18

0

JN49ik

1

DL6II

JO30nx

205

327

2016-03-26 18:50

DK7FC

0.475682

+17

0

JN49ik

1

DL4RAJ/2

JN68kj

326

109

2016-03-26 18:50

DK7FC

0.475782

-22

0

JN49ik

1

DL4RAJ/2

JN68kj

326

109

 

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