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Re: LF: Testing EbSynth on LF

To: [email protected]
Subject: Re: LF: Testing EbSynth on LF
From: IZ7SLZ <[email protected]>
Date: Thu, 9 Feb 2017 01:36:31 +0100
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Hello LF,

many thanks for the reports Markus and Michel and, of course,  compliments to Paul for this masterpiece of software. Last transmission was sent  at 23.30UT and now QRT.

Some details about TX setup:
EbSynth runs on a small PC 2-core Intel 1.83 GHz (saved from scrap) with 2 Gb ram and UBUNTU 14.04 LTS. Sound card on PCI bus. You can see EbSynth settings in the attached screenshot.
Reference signal feeded to EbSynth is 10 kHz coming from Jupiter GPS.
Time reference is achieved using "ntpd" linux program.
Tone generated from EbSynth modulates the SSB exciter setted on dial 136000 Hz. Exciter is also Jupiter-GPS disciplinated.
Antenna current about 2 A;  antenna type inv-L 8 +8 meters.

Paul wrote:

Just adding some PTT control into ebsynth ...

Yes, thanks Paul,  this facility will semplify the actual strange arrangements that i have created to activate PTT before and after the repeated transmissions.

You could do some
very narrow band messages with that - some serious DX?

Yes, i will try in the weekend hoping that Joe VO1NA is available for these tests.

73 all, Domenico iz7slz

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