Hi all,

Stefan, the DC R of the coils in toto is 107,5 Ohm and the L is 284mH.

Your idea to arrange the coils in a pile made me brooding for a while.

solution: nearby the shed is located a stand (raised hide) abt 4,5m high.

Ill modify it, means to “gut” it, means removing the floor

and install a rack to fasten the coils

and find some materials to coat the lower part of the tower

and

and

so Ill be busy outdoors and the stn wont be on the air coming weeks.

The last transmission stopped at 1028UTC today.

GL

Uwe/dj8wx

Uwe

Go for BOTH  ie QRO es Big Antenna = Arm chair copy for the RX operator.

 

mal/g3kev

 

----- Original Message -----

From: [email protected]

To: [email protected]

Sent: Thursday, May 05, 2011 9:07 PM

Subject: Re: Re: VLF: DJ8WX

Hi Mal,

instead of QRO I would prefer a more effectiv antenna.
I feel the day will come.

GL
Uwe/dj8wx

---

Von: [email protected]
Gesendet: 05.05.2011 18:35
An: [email protected]
Betreff: Re: VLF: DJ8WX

---

Uwe

I can see u mean business with plenty of QRO, this should be the aim for all LF operators to avoid eye strain and ear ache at the RX end

de g3kev

 

 

----- Original Message -----

From: [email protected]

To: [email protected]

Sent: Thursday, May 05, 2011 6:18 PM

Subject: Re: VLF: DJ8WX

Hi Stefan,

 

The stn was on the air from yesterday 1442UTC until today 0856UTC

and sporadic ZOA in mode QRS30.

I didnt measure the PA output and I didnt measure the aerial current.
matching coils and PA  are located in a shed at abt 90m from the shack.
the shed is  shut. the key is somewhere hidden.

but Im doing something else: Im trying to meassure the FS using calibrated aerial and RX (ESH3).
but until now the noise makes the results problematic.
so I have to increase the output pwr step by step (day by day).
old days max pwr is not reached today. I estimate todays output pwr of 450W.

the max would be 750W.

750W is the  limit because otherwise (751W)  my XYL would  agn shriek when touching her metal garden tools.

 

Oh horror: neighbors boy climbed our fence and asked my wife if the fence wire is electric. No, she said, it isnt.

Secretly I connected a phasing tester to the fence wire: yes, it was (electric).

 

GL

Uwe/dj8wx/jo43sv

 

 

---

Von: [email protected]
Gesendet: 05.05.2011 12:52
An: [email protected]
Betreff: VLF: DJ8WX

---

VLF,

Today DJ8WX is as strong as before (March 2011). About 20 dB SNR in 47
uHz and traces in the 600-window.

Uwe, what is yout TX power and antenna current? What does your wife
think about that? :-)

73, Stefan/DK7FC