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Re: VLF: EbNaut transmission on 8270.1 Hz

To: [email protected]
Subject: Re: VLF: EbNaut transmission on 8270.1 Hz
From: Roland Bruestle <[email protected]>
Date: Mon, 25 Apr 2016 20:17:10 +0200
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Even with 240mA the transistors went to hot, about 120°-130°.
I finish. Perhaps you can look for the last 2 0r 3 hours.
A nice evening.

Am 25.04.2016 um 20:04 schrieb Roland Bruestle:
Hi Paul,  Stefan
I hope i have solved the problem. The antenna current with 332mA was to much. The Amplifier switched off. Now I am using 240mA.
and try again. Transmission was running the last 2 hours, almost all the time which 320mA.

Am 25.04.206 um 19:32 schrieb DK7

ich hatte den Artikrl als defekt gemeldet und sie haben das Geld an PaxPal zurückbezahlt.
Jetzt wird gemeldet, dass ich nicht bezahlt habe.
Wo ist da das Problem? Wollen Sie, dass ich den defekten Artikel zurücksende? Dann senden Sie mir bitte einen für mich kostenfreien Zürücksendeschein. Ich bitte, dass das geklärt wird.

Hi Paul, VLF,

Wonderful! I like the long messages. The next one will be even longer.
You may have noticed that there was an 'issue' again with my system. This time the power supply collapsed :-) But the PA is my own construction and so i would understand and know how to repair it!
Will repair the supply now an d then back on air. Message announcement will follow.

Ah and i ordered 2 feed-through ceramic isolators from ebay lat night ( ).
Hopefully the creepage distance is high enough :-)

73, Stefan

Am 25.04.2016 10:27, schrieb Paul Nicholson:

Stefan wrote:

> f = 8270.1 Hz
> start 24.04.2016 20:10:02
> coding 8K19A
> CRC 16
> period 30
> length 7

Another success.

Copied 'DREAMER' at rank 3,  Eb/N0 = +0.8,  BER 34.5%, constant
reference phase.   Signal averages 16.04 dB in 54.8 uHz.

A good result, considering the overnight noise.

Paul Nicholson

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