Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id x26GhJI2005892 for ; Wed, 6 Mar 2019 17:43:20 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1h1ZYe-0005Ec-7R for rs_out_1@blacksheep.org; Wed, 06 Mar 2019 16:38:16 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1h1ZYa-0005ET-Vj for rsgb_lf_group@blacksheep.org; Wed, 06 Mar 2019 16:38:12 +0000 Received: from mail-vs1-xe31.google.com ([2607:f8b0:4864:20::e31]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91) (envelope-from ) id 1h1ZYY-000688-9j for rsgb_lf_group@blacksheep.org; Wed, 06 Mar 2019 16:38:11 +0000 Received: by mail-vs1-xe31.google.com with SMTP id n14so2598017vsp.12 for ; Wed, 06 Mar 2019 08:38:09 -0800 (PST) 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:references:in-reply-to:from:date:message-id:subject:to; bh=BUvJELOSoo9Y2uTL9AormsQHDiXwdCCEc9ZUAR//T10=; b=T02SjJ5+hvuqbhF5LUGu9FjMMk8gVFUeHuCpvLIYgHI/c0w+2zbumIQvOBMkq8fug/ bkTQMoalEYyIcbUBZWTdI43FtOItxlTdTTU/ubASDl18lv68Qxnej7sG8gPhENRO0ID1 n4qP94IDAwcA4cCQ+/X7KZKRvEim50YgLQZQ/P7237wwZCIrmwuiQDm+wce41Q73FE6n ZXsKBMifyhOvImg89xYPsgN/28xmN93ZuZt3Z2s7C/IkTjuyX2YD8ImJcVZh1oj9v80Z 78V0UU5XX4cD5v2N+SHBw9/+sjx1lMyYsoSTy40MaPEGx1F2/BI9uUnQgOw7wpi40iNs DoKQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=BUvJELOSoo9Y2uTL9AormsQHDiXwdCCEc9ZUAR//T10=; b=eVUkoylMkXFql0pZZFqxtK2vJRqtZmCfv1QwMTrxT/rqYc1rdN4S0OvLW7A2g4cw/2 56vLyTcdH7bhg5Ef3rGzNUpugEG/CXXW5V0pswFp9EWrnRn0BAY/AzMeRbqPvf+5dgCR Q58CYeqlmmk+85EU1LOXBhuzi9KWQf1XR/uFh9tGT57PKV3WzB3DGnqx5OmKIse+NzOW 56gZAuXfFhhgT+8JTGfWxDECuINg8QuEE4ffmHIqmjgGwbDELh3jv7ZtJRP1WjHkrtqj /V3TFzVJ4uT4tN6DpOFPlvHc0JAlRddjrNlxHd/W12gljE8VDwvxBOQ/yqrnjRcYcnCp B9yA== X-Gm-Message-State: APjAAAWz7TdOWmG17PxjwqbHEWmEUwEkx+bBjMjcTuvOkXy66bdrblRo 3wP2f+lcn+QHJrIbgDeI9Y4nS5X+H/bmdGpUXmIy0g== X-Google-Smtp-Source: APXvYqwo+qSNMzdvxS1Q9vaNk39SvDs5JMIuN0AMNsbqlJ9cqtYXCvEBAZs2Dh6kB4262yFY2PQ2hpopQjuXw4xDVT0= X-Received: by 2002:a67:ea84:: with SMTP id f4mr4137014vso.102.1551890288420; Wed, 06 Mar 2019 08:38:08 -0800 (PST) MIME-Version: 1.0 References: <143973420.8505652.1551631866352.ref@mail.yahoo.com> <143973420.8505652.1551631866352@mail.yahoo.com> <2D5F652AE3DF46E1BF610D90EB16FF70@malcoHP> In-Reply-To: From: Andy Talbot Date: Wed, 6 Mar 2019 16:37:36 +0000 Message-ID: To: "rsgb_lf_group@blacksheep.org" X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Sorry Mr Mal I used to work in the satellite industry - designing and building them. Both systems design and hardware design - so just ever so slightly familiar with them. Biggest claim to fame is probably my desi [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:e31 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (andy.g4jnt[at]gmail.com) 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 520e2bfd10110cfc81cad3398a729455 Subject: Re: Not LF: Opera via QO-100 Content-Type: multipart/alternative; boundary="0000000000005f2caf05836f9d95" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_40_50,HTML_MESSAGE, TO_ADDRESS_EQ_REAL autolearn=no version=2.63 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 --0000000000005f2caf05836f9d95 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Sorry Mr Mal I used to work in the satellite industry - designing and building them. Both systems design and hardware design - so just ever so slightly familiar with them. Biggest claim to fame is probably my designs going into the Inmarsat 3 IF Processor and beam switching matrix. The network that routed uplink signals to spot beams based on frequency , with banks of SAW filters and programmable synthesizers doing the routing. And did the same on the return link. (All pre-DSP) Hence little interest in most amateur satellite ops - although the ease of use for this latest one does have a certain appeal for some more out of the normal ideas using weak signal datamodes. Bu this is the LF group so is really OT Andy www.g4jnt.com On Wed, 6 Mar 2019 at 16:30, mal hamilton wrote: > Not out of date as you suggest. I have a couple of Humax digital boxes fo= r > my Freesat TV reception also I can receive AO100 on my 1.2 metre dish > feeding the LNB output to a RTL dongle and computer with the appropriate > software. I also have a hi spec multi mode scanner covering the desired > frequencies. > Some high spec satellite receivers currently available provide the option > of Digital or Analogue reception. > I do also have an old analogue satellite RX which has manual tuning and > two IF outputs suitable for add on devices or spectrum display. > I have a selection of HP mixers, low pass filters, and oscillator modules > all in the Ghz frequency range that i could use for the 2.4 Ghz uplink an= d > a 1.8metre prime focus dish. > I have an abundance of equipment available for all occasions. > I am well ahead of you with the knowledge and equipment required to put a > satellite communications system together. > I have been communicating via satellites both commercially and amateur > since the OSCAR 6 era and was the only station to communicate via AO6 > between HONGKONG and MELBOURNE AUSTRALIA on CW right on the edge of the > satellite footprint with only a few seconds to make the QSO. > > > YOU ARE TALKING A LOT OF RUBBISH AS USUAL -------------THE PROVERBIAL > ALLIGATOR > > DE VS6HI/G3KEV > > *From:* Andy Talbot > *Sent:* Wednesday, March 06, 2019 2:27 PM > *To:* rsgb_lf_group@blacksheep.org > *Subject:* Re: Not LF: Opera via QO-100 > > You're a bit out of date with sat box info - no one uses analogue ones an= y > more with AFC . It's all digital now. > > To receive Eshail most people use somehting like an RTL Dongle or Airspy > SDR directly set to receive at 739MHz, which is the typical LNB output > for the sat downlink. > You need a proper PLL LNB to get the stability needed for the narrowband > transponder - eg Octogon. ANd ideally with its LO locked > see, for example http://g4jnt.com/PLL_LNB_Tests.pdf and > http://g4jnt.com/OctagonExtLo.pdf > > Or you can just listen to the downlink at https://eshail.batc.org.uk/nb/ > > Much info exchanged on https://groups.io/g/UKMicrowaves/topics > > > Andy > www.g4jnt.com > > > > On Wed, 6 Mar 2019 at 13:56, mal hamilton wrote: > >> Marku >> There must be a way to modify a satellite RX to receive the AO 100. The >> SAT BOX would have AFC built in to avoid LNB drift in normal use. >> One method would be to set up the RX box to analogue reception and tune >> across the base band, another to tap off the IF 480 Mhz and tune across = the >> IF with a 70cms amateur RX or SDR dongle and computer >> Maybe someone has tried a similar method >> 73 de mal/g3kevr >> >> *Fn rom:* Markus Vester >> *Sent:* Sunday, March 03, 2019 4:51 PM >> *To:* rsgb_lf_group@blacksheep.org >> *Subject:* Re: Not LF: Opera via QO-100 >> >> Hi Mal, >> >> my 2.4 GHz TX is fairly improvised and may not be easy to reproduce... >> I've extracted the LO from an old Sat-TV receiver, followed by a small >> Minicircuit amplifier and a 60 cm dish indoors. The PLL consists of the >> 1/64 prescaler output fed to a CD4030 XOR phase comparator, along with a >> 18.75082 MHz Rubidium-controlled reference. >> >> There are surely much better ways to generate a decent 13 cm signal. >> PA1SDB mentioned that he uses an Adalm-Pluto SDR from Analog Devices. >> >> You might be able to pick us up on the web-sdr, using 10489603.5 kHz USB >> dial, and Opera SW set to Op-05 speed by selecting e.g. the 1296 MHz ban= d. >> Yes we could try a crossband contact, but not today. To count as a valid >> QSO, we'd probably also need to set up our own receivers, both for 10.5 = GHz >> and 472 kHz. >> >> Best 73, >> Markus >> >> >> >> -----Urspr=C3=BCngliche Mitteilung----- >> Von: mal hamilton >> An: rsgb_lf_group >> Verschickt: So, 3. Mrz 2019 16:24 >> Betreff: Re: Not LF: Opera via QO-100 >> >> Markus >> How about a XBAND qso AO100/MF on CW >> You TX via satellite to me and I tx on 472.5 Khz CW >> 73 de mal/g3kev >> >> >> *From:* Markus Vester >> *Sent:* Sunday, March 03, 2019 1:44 PM >> *To:* rsgb_lf_group@blacksheep.org >> *Cc:* pa1sdb@amsat.org >> *Subject:* Not LF: Opera via QO-100 >> >> Listening to the below-mentioned Goonhilly web-sdr, I noticed an >> interrupted carrier on 10489.605 MHz, which turned out to be 10 mW Opera= -2 >> and Opera-05 transmissions from PA1SDB. Peter has been well known in the= LF >> group for running a VLF-Grabber in Appingedam. >> >> During the last week, I had managed to built a rudimentary but stable 2.= 4 >> GHz CW transmitter, allowing me to add in another Opera signal on >> Es'hail-2. Anyone else to join in? >> >> Best 73, >> Markus (DF6NM) >> >> -----Urspr=C3=BCngliche Mitteilung----- >> Von: VIGILANT Luis Fern=C3=A1ndez >> An: rsgb_lf_group@blacksheep.org >> Verschickt: So, 17. Feb. 2019 22:21 >> Betreff: LF: MF/LF chat over QA-100 Geostationary Satellite ? >> >> Hi All >> >> May be someone has the equipment and is in the footprint of Es'Hail-2, >> formely AMSAT QA-100 satellite? >> Nice place for chats working as an HF band permanently open and with >> outstanding sensibility >> >> Anybody (appart from David, G0MRF) interested in joining an MF/LF/VLF >> chat ? >> >> You need just an SSB rig at 144 or 432, an upconverter to 2.4GHz and a >> WiFi PA and antenna and you are in >> For Rx you can even use the WebSDR at Goonhilly >> https://eshail.batc.org.uk/nb/ >> >> Unfortunately the footprint of the satellite do not cover America (only >> the extreme East of Brazil) >> nor Australia (reaching up to thailand). But sites like Reunion are in >> the footprint >> >> 73 de Luis >> EA5DOM >> > --0000000000005f2caf05836f9d95 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Sorry Mr Mal

= I used to work in the satellite industry - designing and building them.=C2= =A0 Both systems design and hardware design - so just ever so slightly fami= liar with them.
Biggest claim to fame is probably my designs= going into the Inmarsat 3 IF Processor and beam switching matrix.=C2=A0 = =C2=A0The network that routed uplink signals to spot beams based on frequen= cy , with banks of SAW filters and programmable synthesizers doing the rout= ing.=C2=A0 And did the same on the return link.=C2=A0 (All pre-DSP)

Hence little interest in most amateur satellite= ops - although=C2=A0 the ease of use for this latest one does have a certa= in appeal for some more out of the normal ideas using weak signal datamodes= .

Bu this is the LF group so is really O= T

<= div>
Andy
<= span style=3D"font-size:12.8px">www.g4jnt.com

=


On Wed, 6 Mar 2019 at 1= 6:30, mal hamilton <g3kevmal@ta= lktalk.net> wrote:
Not out of date as you suggest. I have a couple of Humax digital boxes= for=20 my Freesat TV reception also I can receive AO100 on my 1.2 metre dish feedi= ng=20 the LNB output to a RTL dongle and computer with the appropriate software. = I=20 also have a hi=C2=A0 spec multi mode scanner covering the desired=20 frequencies.
Some high spec satellite receivers currently available provide the opt= ion=20 of Digital or Analogue reception.
I do also have an old analogue satellite RX which has manual tuning an= d two=20 IF outputs suitable for add on devices or spectrum display.
I have a selection of HP mixers, low pass filters, and oscillator modu= les=20 all in the Ghz frequency range that i could use for the 2.4 Ghz uplink and = a=20 1.8metre prime focus dish.
I have an abundance of equipment available for all occasions.
I am well ahead of you with the knowledge and equipment required to pu= t a=20 satellite communications system together.
I have been communicating=C2=A0 via satellites both commercially and= =20 amateur since the OSCAR 6 era and was the only station to communicate via A= O6=20 between HONGKONG and MELBOURNE AUSTRALIA on CW right on the edge of the=20 satellite footprint with only a few seconds to make the QSO.
=C2=A0
=C2=A0
YOU ARE TALKING A LOT OF RUBBISH AS USUAL -------------THE PROVERBIAL= =20 ALLIGATOR
=C2=A0
DE VS6HI/G3KEV
=C2=A0
On Wed, 6 Mar 2019 at 13:56, mal hami= lton <g3kevma= l@talktalk.net>=20 wrote:
Marku
There must be a way to modify a satellite RX to receive the AO 100. = The=20 SAT BOX would have AFC built in to avoid LNB drift in normal use.
One method would be to set up the RX box to analogue reception and t= une=20 across the base band, another to tap off the IF 480 Mhz and tune across t= he IF=20 with a 70cms amateur RX or SDR dongle and computer
Maybe someone has tried a similar method
73 de mal/g3kevr
=C2=A0
Fn rom: Markus Vester
Sent: Sunday, March 03, 2019 4:51 PM
Subject: Re: Not LF: Opera via QO-100
=C2=A0
Hi=20 Mal,

my 2.4 GHz TX is fairly improvi= sed and may=20 not be easy to reproduce... I've extracted the LO from an old Sat-TV = receiver,=20 followed by a small Minicircuit amplifier and a 60 cm dish indoors. The P= LL=20 consists of the 1/64 prescaler output fed to a CD4030 XOR phase comparato= r,=20 along with a 18.75082 MHz Rubidium-controlled reference.

There are surely much better ways to generate a decent 13 cm=20 signal. PA1SDB mentioned that he uses an Adalm-Pluto SDR from Analog=20 Devices.

You might be able to pick us up on the web= -sdr,=20 using 10489603.5 kHz USB dial, and Opera SW set to Op-05 speed by selecti= ng=20 e.g. the 1296 MHz band. Yes we could try a crossband contact, but not tod= ay.=20 To count as a valid QSO, we'd probably also need to set up our own re= ceivers,=20 both for 10.5 GHz and 472 kHz.

Best = 73,
Markus
=C2=A0

-----Urspr=C3=BCngliche Mitteilung-----<= br clear=3D"none">Von: mal hamilton=20 <g3kevmal@t= alktalk.net>
An: rsgb_lf_group=20 <rsg= b_lf_group@blacksheep.org>
Verschickt:=20 So, 3. Mrz 2019 16:24
Betreff: Re: Not LF: Opera via QO= -100

Markus
How about a XBAND qso AO100/MF on CW
You TX via satellite to me and I tx on 472.5 Khz CW
73 de mal/g3kev
=C2=A0
Hi=20 All=20
=C2=A0
May be someone has the equipment and is in the footprint of Es'H= ail-2,=20 formely AMSAT QA-100 satellite?
Nice place for chats working as an HF band permanently open and with= =20 outstanding sensibility
=C2=A0
Anybody (appart from David, G0MRF) interested in joining an MF/LF/VL= F=20 chat ?
=C2=A0
You need just an SSB rig at 144 or 432, an upconverter to 2.4GHz and= a=20 WiFi PA and antenna and you are in
For Rx you can even use the WebSDR at Goonhilly

Unfortunately the footprint of the=20 satellite do not cover America (only the extreme East of Brazil)
nor Australia (reaching up to thailan= d).=20 But sites like Reunion are in the footprint

73 de Luis
EA5DOM=20
=
--0000000000005f2caf05836f9d95--