Message-ID: <5C0EC274.6060100@posteo.de>
Date: Mon, 10 Dec 2018 20:45:56 +0100
From: DK7FC <selberdenken@posteo.de>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3
MIME-Version: 1.0
To: rsgb_lf_group@blacksheep.org
References: <1541712573053.31739@kuleuven.be> <1542362144885.30626@kuleuven.be> <1542721669174.9290@kuleuven.be> <1542902405876.64977@kuleuven.be> <1543572894053.70070@kuleuven.be> <1543670860843.50642@kuleuven.be> <5C0EAB1D.8020606@posteo.de> <fe8047d7-2222-4e07-224b-1231831a221c@n1bug.com> <5C0EB718.9060001@posteo.de> <fd54b3ac-df89-ef3e-63d7-101d5622bb86@n1bug.com>
In-Reply-To: <fd54b3ac-df89-ef3e-63d7-101d5622bb86@n1bug.com>
Subject: Re: LF: JT9-2 CQ!
Content-Type: multipart/mixed;
 boundary="------------060304060803040904000709"
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org

This is a multi-part message in MIME format.
--------------060304060803040904000709
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 7bit

Paul,

You recently mentioned that you built a LF down-converter. So i bet you 
are skilled enough to build a LF up-converter too :-) Then you don't 
need a transceiver any more.
For generating the input signal to the converter, use SpecLab.
For the LO, use a NEO-7M based signal generator. It just remember that 
IW4DXW did that some time ago. Find his email in the attachment. This 
also anwers your EbNaut issues i think.

I just ordered another module for playing with that time pulse :-)

73, Stefan


Am 10.12.2018 20:16, schrieb N1BUG:
> Hi Stefan,
>
> Well for QSOs if your receiver/transmitter allow you can set the VFO
> higher, like 136.500 and then the 843 Hz puts you higher in the band.
>
> But anyway, in the current version JT9-5 and JT9-10 are not working
> at all so we have to wait. Rik has his hands full with other
> important aspects of program development.
>
> Maybe JT9-10 will not work for me because of frequency drift in my
> transceiver. :-( We will see about that when JT9-10 is ready for
> testing.
>
> I *will* soon transmit WSPR-15. As you know I recently had problems
> with both PAs. One failed *while* I was transmitting WSPR-15. Both
> are now repaired but I wanted to put some time on them with lower
> duty cycle before trying that mode again.
>
> After a few nights of this JT9-1 / JT9-2 beacon test (or if no
> interest, maybe just one night!) I will try WSPR-15. I am very
> interested to get back to that.
>
> 73,
> Paul
>

--------------060304060803040904000709
Content-Type: message/rfc822;
 name="Nachricht als Anhang"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
 filename="Nachricht als Anhang"

Return-Path: <owner-rsgb_lf_group@blacksheep.org>
Delivered-To: selberdenken@posteo.de
Received: from proxy02.posteo.name ([127.0.0.1])
	by dovecot07.posteo.name (Dovecot) with LMTP id r5/4OFE9X1ke4AIACjXI6Q
	for <selberdenken@posteo.de>; Fri, 07 Jul 2017 09:54:38 +0200
Received: from proxy02.posteo.de ([127.0.0.1])
	by proxy02.posteo.name (Dovecot) with LMTP id 67bzIn08X1kk9AEAGFAyLg
	; Fri, 07 Jul 2017 09:54:38 +0200
Received: from mx04.posteo.de (unknown [10.0.0.64])
	by proxy02.posteo.de (Postfix) with ESMTPS id 3x3n264wR2z11gh
	for <selberdenken@posteo.de>; Fri,  7 Jul 2017 09:54:38 +0200 (CEST)
X-Virus-Scanned: amavisd-new at posteo.de
X-Spam-Flag: NO
X-Spam-Score: 0.511
X-Spam-Level: 
X-Spam-Status: No, score=0.511 tagged_above=-1000 required=8
	tests=[DKIM_ADSP_CUSTOM_MED=0.001, DKIM_SIGNED=0.1,
	FREEMAIL_FORGED_FROMDOMAIN=0.198, FREEMAIL_FROM=0.001,
	HEADER_FROM_DIFFERENT_DOMAINS=0.001, POSTEO_RUDEBODY_URI=2,
	POSTEO_RUDE_BODY_30=0.5, RCVD_IN_DNSWL_MED=-2.3, T_DKIM_INVALID=0.01]
	autolearn=disabled
Authentication-Results: mailin04.posteo.de (amavisd-new);
	dkim=fail (2048-bit key) reason="fail (message has been altered)"
	header.d=gmail.com
Received: from post.thorcom.com (post.thorcom.com [195.171.43.25])
	by mx04.posteo.de (Postfix) with ESMTP id 3x3n262PSbz10c8
	for <selberdenken@posteo.de>; Fri,  7 Jul 2017 09:54:38 +0200 (CEST)
Authentication-Results: mx04.posteo.de; dmarc=none header.from=gmail.com
Received: from majordom by post.thorcom.com with local (Exim 4.14)
	id 1dTO0R-0001s0-IT
	for rs_out_1@blacksheep.org; Fri, 07 Jul 2017 08:48:51 +0100
Received: from [195.171.43.32] (helo=relay1.thorcom.net)
	by post.thorcom.com with esmtp (Exim 4.14)
	id 1dTO0R-0001rr-1w
	for rsgb_lf_group@blacksheep.org; Fri, 07 Jul 2017 08:48:51 +0100
Received: from mail-ua0-x22b.google.com ([2607:f8b0:400c:c08::22b])
	by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256)
	(Exim 4.89)
	(envelope-from <riccardozoli80@gmail.com>)
	id 1dTO0M-0008Sb-6g
	for rsgb_lf_group@blacksheep.org; Fri, 07 Jul 2017 08:48:49 +0100
Received: by mail-ua0-x22b.google.com with SMTP id z22so15459720uah.1
        for <rsgb_lf_group@blacksheep.org>; Fri, 07 Jul 2017 00:48:45 -0700 (PDT)
X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20161025;
        h=mime-version:from:date:message-id:subject:to;
        bh=qctkXJs0FIxS0e/XGsCQ/XliGtTz//AAXVOdJ+MM/vI=;
        b=HCx92CKj22nGesPq0X0MAObK3qChtSi7VcPLWOkjLxD58tyt+7nEWxX9pmsX/eUOCQ
         vZdcSPoymLaFKVOt8Hj9AhUrY3Gt03TjxfCRza69m/74Bb3k0zqSn2m4Xd/yo3BTByyg
         fN3G1pAsX5/JXUHHHtnNXkJ5OPH+OT8YsvXA7gxhW5kLomsu1Tr68COrmn3vPZC0ccz4
         3pzUXDqF2M+kU8JVhp5rbDPURwGy5UXNrU8u9Nq5b6poYcAwiWj+Z1D6qYydcMeJizvZ
         5kGw8dHtZaukQg5mriSQ8VdZrEqlVmd/Igc9eXCr/Ru3aOegx+LxZDb35U5SnzBlOGgJ
         aWqA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20161025;
        h=x-gm-message-state:mime-version:from:date:message-id:subject:to;
        bh=qctkXJs0FIxS0e/XGsCQ/XliGtTz//AAXVOdJ+MM/vI=;
        b=Bf4C0mW7l612E6XSPv0x7ukH5M77Hc+r1ueqLcxqp954JBgLzqvDeQr7a/Mun0f0R9
         gMbI222HfSn201amwneIX0pt4o8mhCF4WCZCUzptGrSSxhbIpuP1bZPpXPdrdBkvObmn
         HdmgOpAerTiyCxPno7Bg3Wv8Ghkx3iHwpiAbwlDE8tvm16r8fqX7npqj9zZB3kMQ54JI
         zCF9IENBv51If/f6y1VcehzORJaTOfYAebtNO7boLGXOloFfHlOo7UwMHyfXePWndJ5t
         pvZgb56Gx22xhVQRMjOmJQ7RtiLC/qyw323P1ijHLEgWMkfT3OCRaIFndhv8kaRaVunn
         BUPg==
X-Gm-Message-State: AKS2vOx6HuyDTZYpYL7KNKiR6VhV2SVVzsqj6OEHhAtbobadmqDiucLT
	n6BPqHZe2Ca39w6f/g8u3rUndQnB6n6D
X-Received: by 10.159.36.5 with SMTP id 5mr33774009uaq.19.1499413723865; Fri,
 07 Jul 2017 00:48:43 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.176.18.202 with HTTP; Fri, 7 Jul 2017 00:48:43 -0700 (PDT)
From: Riccardo Zoli <riccardozoli80@gmail.com>
Date: Fri, 7 Jul 2017 09:48:43 +0200
Message-ID: <CANA3B6V2JDUC3A9e_R37zajcYgdAYUEGS+iMLLmPpDFYcp+9yA@mail.gmail.com>
To: LF Group <rsgb_lf_group@blacksheep.org>
X-Scan-Signature: b1e5ebccbad86c8ca1fd46d24f0285de
Subject: LF: Simple coherent frequency generator
Content-Type: text/plain; charset="UTF-8"
X-SA-Exim-Scanned: Yes
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org
X-Listname: rsgb_lf_group
X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org
X-SA-Exim-Scanned: No; SAEximRunCond expanded to false

Hi Markus, Domenico, Stefan, LF

many thanks for last EbNaut decodes, dr Markus. And thanks Domenico
for your outstanding EbNaut automatic decoder!
In these days we have got good results using stand-alone NEO-M8N (or
NEO-7M as well) modules like reference frequency generator: (no more
external TCXO, OCXO, PLL,
etc....hi); obviously, the module with his patch antenna should be
installed in a good position. The output signal isn't affected by a
significant jitter (up to 1 MHz) and remains very stable in phase.


-A VERY SIMPLE COHERENT FREQUENCY GENERATOR (SCH1.JPG)-

We need only a buffer on TP5 (pin3 of the U-blox hybrid, connected
normally to the status LED) to adapt levels and impedance toward
amplifier.
SCH1.JPG is a simple solution tested by Tony IK1HGI, with GPS and
buffer installed outside the house. The square wave signal is applied
to PA using about 10 meters of RG174.
The solution with RS-232(TTL 3.3V)->WiFi converter is a practical
option (it works fine in my shack): you could use a normal COM (TTL
3.3V) to USB adapter.
Use "U-center" (by U-blox -
https://www.u-blox.com/en/product/u-center-windows) to pre-configure
the module.
After connecting it, it's necessary to set the navigation mode and
minimum elevation of sats (thanks to Domenico for the advice).

Go to...
- Menu - View
- Configuration view

- Select item "NAV5 (Navigation 5)" (left side)
- Set Dynamic Model to "Stationary" (right side)
- Set Min SV Elevation to 10 degrees
- Press Send button

- Select item "TP5 (Timepulse 5)" (left side).
- Select Frequency and Duty Cycle mode (right side)
- Set Duty cycle values (50% normally)
- Set QRG values Frequency and Frequency Locked; normal or x2 with
G0MRF PA (http://www.g0mrf.com/630m.htm) or x4 with a generic SDR
quadrature generator like
74HC74 (normally used with H-mode mixers)
- Press Send button

...obviously we need GPS module status ALWAYS in locked mode to obtain
a valid coherent signal...

- Select item "CFG (Configuration)" (left side)
- Select "Save current configuration" (right side)
- Select all Devices (in particular I2C-EEPROM) by keeping pressing Shift key
- Press Send button

Now the module is programmed.


-BPSK MODULATOR (SCH2.JPG)-

Now we need a BPSK modulator to send EbNaut messages: the simplest
method uses XOR (or XNOR) logic ports.
This is a very cheap, but fine solution to be EbNaut QRV in TX.
In particular, this modulator can be used succesfully on G0MRF class D
PA (http://www.g0mrf.com/630m.htm) and tested by Tony IK1HGI, but also
in any other amplifier.
In this last case, it needs a proper signal buffer.


All the best


73 de Riccardo IW4DXW


--------------060304060803040904000709--