LF: RE: Re: Carrier on 8270.0025 - Best Italian DX detection

[VIGILANT Luis Fernández <luis@vigilant.es>]

Congratulations Riccardo and Max! Great achievement J

 

73 de Luis

EA5DOM

 

 

De: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] En nombre de Max IK0VVE
Enviado el: jueves, 01 de febrero de 2018 17:12
Para: rsgb_lf_group@blacksheep.org
Asunto: LF: Re: Carrier on 8270.0025 - Best Italian DX detection

 

Hi Rick, VLF'ers

I was about to lose all hope but finally the 8k carrier from Rick has been detected from my system! This should be the first ITA-ITA detection.
I've tried many times without result, also because of strong local noise, but after some test with loop and whip antennas I've recorded this (weak, indeed...) trace.
 


QRB is about 385 km and a 3/4 of the route are mountains, the spectrogram is a 47uHz on the 40 turn loop.
 
Thanks to Rick for his fine work, I hope to find soon a low noise place to get better results.
Probably also some better propagation conditions helped me to receive Rick.
Now We'll try for an EbNaut short message, who knows what will happen? 

73, Max IK0VVE 
  

______________________________

 

...here some of my HAM Radio projects...

 

www.ik0vve.net

 

Da: owner-rsgb_lf_group@blacksheep.org

A: "LF Group" rsgb_lf_group@blacksheep.org

Cc:

Data: Sun, 28 Jan 2018 11:47:13 +0100

Oggetto: Re: VLF: Carrier on 8270.0025

 

Hi VLF,

 

 

I'm running another carrier test on 8270.01953125 with about 600 mA

and 14 µW ERP.

To reach this current, I need about 290W on the PA output, currently

supplied with 62V and 5.5A.

There is a lot of power dissipated by the coil: a cooling fan is

absolutely necessary.

 

 

All the best

 

 

73 de Riccardo IW4DXW