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CX2SA > SATDIG 24.09.16 13:56l 848 Lines 29049 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: Audio bridge (Ed Krome)
2. SDR monitoring/telemetry station (Matthew Stevens)
3. Re: SDR monitoring/telemetry station (John Brier)
4. Upcoming ARISS Contact Schedule as of 2016-09-23 22:00 UTC
(AJ9N@xxx.xxxx
5. Re: ISS ping box (now PBBS) (Ross Whenmouth)
6. EO91 Schedule for Saturday Sept 24th (Ken Alexander)
7. Re: AO-73/FUNcube-1 (Jim Heck)
8. Re: AO-73/FUNcube-1 (Simon Brown)
9. Re: SDR monitoring/telemetry station (Andrew Rich)
10. Re: Satellite tracking in MAC OS X (Paul Andrews)
11. Re: SDR monitoring/telemetry station (Simon Brown)
12. Re: AO-73/FUNcube-1 (Simon Brown)
13. Re: SDR monitoring/telemetry station (Andrew Rich)
14. MacDoppler Question (Andrew Rich)
----------------------------------------------------------------------
Message: 1
Date: Fri, 23 Sep 2016 16:10:24 -0400
From: Ed Krome <e.krome@xxxxxxx.xxx>
To: John Brier <johnbrier@xxxxx.xxx>
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Audio bridge
Message-ID: <D3DB421C-ADEF-4959-8742-DD2060CCF012@xxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Does anyone know of a "virtual audio cable" for android?
Tnx
Ed Krome K9EK
Sent from my iPhone
> On Sep 23, 2016, at 3:07 PM, John Brier <johnbrier@xxxxx.xxx> wrote:
>
> Can't remember which link I used by Soundflower is what I use to
> achieve this "virtual audio cable" like functionality on Mac.
>
> 73, John Brier KG4AKV
>
>> On Fri, Sep 23, 2016 at 3:05 PM, Andrew Rich <vk4tec@xxxxxxxxxxxxx.xxx>
wrote:
>> Hello
>>
>> I seem to need an audio bridge between my SDR program and WXtoIMG MAC OS X
>>
>> I think it is just bleeding across from the speaker to MIC at the moment.
>>
>> Andrew
>>
>> ------------------------------------------
>> Andrew Rich VK4TEC
>> w www.tech-software.net
>> m vk4tec@xxxxxxxxxxxxx.xxx
>>
>>
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership.
Opinions expressed
>> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 2
Date: Fri, 23 Sep 2016 16:26:07 -0400
From: Matthew Stevens <matthew@xxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] SDR monitoring/telemetry station
Message-ID:
<CAN8zKtTVrwr4-QnviEw+i5qHy5O3FHusQJqaG=AakT5wk7UbEQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
So, after discovering that trying to process telemetry data from the
audio log I recorded out of my D72A doesn't work at all, I'm kicking
around the idea of getting an SDR receiver to monitor Fox/Funcube
telemetry, as well as use for general HF/air band/satellite reception.
My first thought is to use an SDRplay hooked up to my computer as a
more-or-less unattended monitoring station. I'm aware of the Funcube
dongle, but it looks like the SDRplay is a little more versatile as
far as general SDR use, not just sat telemetry. In theory it looks
like I can set up HDSDR with an SDRplay to record automatically on
intervals, and then process telemetry after the fact. In
practice....Has anyone used this approach? Or have a better way?
My other question is about antennas. I know there isn't going to be
any one antenna that will work for everything. At first I will
probably just use a spare 2m/440 mag mount I have lying around, stuck
on the metal roof of my house. Just curious what others are using?
thanks,
- Matthew KK4FEM
------------------------------
Message: 3
Date: Fri, 23 Sep 2016 17:27:11 -0400
From: John Brier <johnbrier@xxxxx.xxx>
To: Matthew Stevens <matthew@xxxxxxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] SDR monitoring/telemetry station
Message-ID:
<CALn0fKN5Q1rPFfpa00m--mvRBaU+0a923___dX5++SjBRoMYSg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Hold on,
Are you saying you can't decode packets from an audio recording of
packets heard on your D72? I've not tried the D72 in this way but I
have definitely done this with an old Kenwood TM-261a mobile radio, I
believe my Icom IC-706MKIIG, and maybe my old Kenwood TH-G71A HT.
I recorded using PCM WAV 44.1 KHz 16 bit in Audacity and decoded with
Soundmodem on Windows.
If this is your goal, what was your setup?
I should mention that not all packets decode even when they seem to
sound loud/clean/etc.
73, John Brier KG4AKV
On Fri, Sep 23, 2016 at 4:26 PM, Matthew Stevens <matthew@xxxxxxxxx.xxx>
wrote:
> So, after discovering that trying to process telemetry data from the
> audio log I recorded out of my D72A doesn't work at all, I'm kicking
> around the idea of getting an SDR receiver to monitor Fox/Funcube
> telemetry, as well as use for general HF/air band/satellite reception.
>
> My first thought is to use an SDRplay hooked up to my computer as a
> more-or-less unattended monitoring station. I'm aware of the Funcube
> dongle, but it looks like the SDRplay is a little more versatile as
> far as general SDR use, not just sat telemetry. In theory it looks
> like I can set up HDSDR with an SDRplay to record automatically on
> intervals, and then process telemetry after the fact. In
> practice....Has anyone used this approach? Or have a better way?
>
> My other question is about antennas. I know there isn't going to be
> any one antenna that will work for everything. At first I will
> probably just use a spare 2m/440 mag mount I have lying around, stuck
> on the metal roof of my house. Just curious what others are using?
>
> thanks,
>
> - Matthew KK4FEM
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 4
Date: Fri, 23 Sep 2016 18:00:10 -0400
From: AJ9N@xxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2016-09-23
22:00 UTC
Message-ID: <eccab.50f43872.4516ffea@xxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Upcoming ARISS Contact Schedule as of 2016-09-23 22:00 UTC
Quick list of scheduled contacts and events:
Yamanashi Gakuin J. H. School, Kofu, Japan, direct via 8J1YGJH
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Takuya Onishi KF5LKS
Contact is a go for: Sat 2016-10-01 08:11:36 UTC 31 deg
*************************************************
*****************************
Call for Proposals
Proposal Window September 1 ? November 1, 2016
The Amateur Radio on the International Space Station (ARISS) Program is
seeking formal and informal education institutions and organizations,
individually or working together, to host an Amateur Radio contact with a crew
member on board the ISS. ARISS anticipates that the contact would be held
between July 1, 2017 and December 31, 2017. Crew scheduling and ISS orbits
will
determine the exact contact dates. To maximize these radio contact
opportunities, ARISS is looking for organizations that will draw large
numbers of
participants and integrate the contact into a well-developed education
plan.
The deadline to submit a proposal is November 1, 2016. Proposal
information and documents can be found at
www.arrl.org/hosting-an-ariss-contact.
****************************************************************************
**
ARISS is always glad to receive listener reports for the above contacts.
ARISS thanks everyone in advance for their assistance. Feel free to send
your reports to aj9n@xxxxx.xxx or aj9n@xxx.xxx.
Listen for the ISS on the downlink of 145.8? MHz.
****************************************************************************
***
All ARISS contacts are made via the Ericsson radio unless otherwise noted.
****************************************************************************
***
Several of you have sent me emails asking about the RAC ARISS website and
not being able to get in. That has now been changed to
http://www.ariss.org/
Note that there are links to other ARISS websites from this site.
****************************************************************************
Looking for something new to do? How about receiving DATV from the ISS?
If interested, then please go to the ARISS-EU website for complete
details. Look for the buttons indicating Ham Video.
http://www.ariss-eu.org/
If you need some assistance, ARISS mentor Kerry N6IZW, might be able to
provide some insight. Contact Kerry at kbanke@xxxxxxxxx.xxx
****************************************************************************
ARISS congratulations the following mentors who have now mentored over 100
schools:
Gaston ON4WF with 121
Satoshi 7M3TJZ with 121
Francesco IK?WGF with 118
****************************************************************************
The webpages listed below were all reviewed for accuracy. Out of date
webpages were removed and new ones have been added. If there are
additional
ARISS websites I need to know about, please let me know.
Note, all times are approximate. It is recommended that you do your own
orbital prediction or start listening about 10 minutes before the listed
time.
All dates and times listed follow International Standard ISO 8601 date
and
time format YYYY-MM-DD HH:MM:SS
The complete schedule page has been updated as of 2016-09-23 22:00 UTC.
(***)
Here you will find a listing of all scheduled school contacts, and
questions, other ISS related websites, IRLP and Echolink websites, and
instructions for any contact that may be streamed live.
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
Total number of ARISS ISS to earth school events is 1084.
Each school counts as 1 event.
Total number of ARISS ISS to earth school contacts is 1049.
Each contact may have multiple schools sharing the same time slot.
Total number of ARISS supported terrestrial contacts is 47.
A complete year by year breakdown of the contacts may be found in the
file.
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
Please feel free to contact me if more detailed statistics are needed.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The following US states and entities have never had an ARISS contact:
Arkansas, Delaware, South Dakota, Wyoming, American Samoa, Guam, Northern
Marianas Islands, and the Virgin Islands.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
QSL information may be found at:
http://www.ariss.org/qsl-cards.html
ISS callsigns: DP?ISS, IR?ISS, NA1SS, OR4ISS, RS?ISS
****************************************************************************
The successful school list has been updated as of 2016-09-16 06:00 UTC.
http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf
Frequency chart for packet, voice, and crossband repeater modes showing
Doppler correction as of 2005-07-29 04:00 UTC
http://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction
.rtf
Listing of ARISS related magazine articles as of 2006-07-10 03:30 UTC.
http://www.amsat.org/amsat/ariss/news/ARISS_magazine_articles.rtf
Check out the Zoho reports of the ARISS contacts
https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415
****************************************************************************
Exp. 47 on orbit
Jeff Williams KD5TVQ
Oleg Skripochka RN3FU
Aleksey Ovchinin
Exp. 48 on orbit
Anatoly Ivanishin
Kate Rubins KG5FYJ
Takuya Onishi KF5LKS
****************************************************************************
73,
Charlie Sufana AJ9N
One of the ARISS operation team mentors
------------------------------
Message: 5
Date: Sat, 24 Sep 2016 13:48:34 +1200
From: Ross Whenmouth <ross@xxxxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] ISS ping box (now PBBS)
Message-ID: <1e0717a0-c88d-4bb1-c0b5-519ac1c81176@xxxxxxx.xx.xx>
Content-Type: text/plain; charset=windows-1252; format=flowed
On 23/09/16 23:50, amsat-bb-request@xxxxx.xxx wrote:
> Packet BBS operation via space was proved to be entirely inoperable,
> impossible total congestion,, inefficient, impractical, wasteful and
> discunctional use of packet via satllites 20 years ago.
Yes, connected AX.25 is the wrong protocol for a PBBS on the ISS, and
CSMA simply WILL NOT WORK when most user nodes can't hear each other
(aka Hidden Transmitter Syndrome).
My understanding of PBBS operation is that the vast majority of users
"download" far more data than they "upload", and that most of what is
downloaded is bulletins (think - large numbers of hams downloading the
same content as each other).
Unlike 20 years ago, broadband receivers (and sufficient computing power
for demodulation in software) are now affordable - a cheap RTL-2832
DVB-T USB dongle (plus preamp, filter, and antenna), can receive a 2.4
MHz wide chunk of spectrum on 6m, 2m, 70cm, or 23cm and your PC is
probably already fast enough to keep up.
So, I think that a usable ISS-PBBS would be cross-band full-duplex (up
on 2m, down on 70cm or 23cm etc), with asymmetrical bit rates - slow
uplink(s) which are compatible with ham's existing transmitters (1200
AFSK, 9600 K9NG/G3RUH, or maybe even n-QAM or OFDM via SSB?) and a fast
(broadband) downlink that can be received with cheap equipment (RTL-SDR,
Airspy, etc). Of course, data compression (LZW, LZMA, Brotli, etc) and
Forward Error Correction would be used.
Yes, a high speed broadband TX will require more power than a NBFM TX,
but presumably an ISS-PBBS would have a far more generous power budget
than a cube-sat.
"Spare" bandwidth on the broadband downlink would be used to constantly
stream PBBS bulletins (and maybe even personal messages when the
ISS-PBBS knows that the recipient is within radio range - see below re
grid squares), so that to get the latest messages, all you have to do is
listen (no ground station transmission required).
Thus, most users would only need to transmit when they have a bulletin
or personal message to upload.
I would have the ISS-PBBS co-ordinate channel access - ie ground
stations only transmit when the ISS-PBBS tells them that they can
(TDMA). The ISS-PBBS would have to reserve some of the uplink time for
connection requests, and there would of course be contention and
collisions between ground stations (which can not hear each other)
attempting to connect. To alleviate this, when the ISS-PBBS hears a
collision in the "connect request" time slot, it could perform a binary
search of the callsign space (as is done with some RFID systems - this
how they cope with multiple RFID tags within range of the reader at the
same time).
I think that it would make sense for a ground station's connect request
packet to include their grid square (Maidenhead locator), so that the
ISS-PBBS (which knows where it is on orbit) knows when that ground
station is out of radio range so that it can abandon attempting to
communicate with it. A simple enforcement mechanism (ground station
sends incorrect grid square) is that the ISS-PBBS would refuse to
communicate with ground stations declaring a grid square which is not
within what the ISS-PBBS considers to be radio range.
In areas of high amateur density, it will probably be more efficient
(and cheaper) to equip the local terrestrial PBBS with equipment to talk
to the ISS-PBBS, and then have the hams within the coverage area of the
terrestrial PBBS use that instead of the ISS-PBBS (this would reduce
contention for on the "connect request" timeslot of the ISS-PBBS, and it
will be more efficient for one PBBS to upload say ten messages to the
ISS-PBBS in one go than it would be for ten different hams to each
upload one messsage each to the ISS-PBBS).
This would give us global message forwarding that is not reliant on the
internet.
73 ZL2WRW
Ross Whenmouth
------------------------------
Message: 6
Date: Fri, 23 Sep 2016 21:58:25 -0400
From: Ken Alexander <k.alexander@xxxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] EO91 Schedule for Saturday Sept 24th
Message-ID: <gv90kp3fneke7ar1ahejp148.1474681809325@xxxxx.xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Saturday's fun filled schedule in EO91 looks like this:
Times in UTC.
1510 - FO29,
1654 - FO29,
1843 - FO29,
1946 - SO50,
2146 - SO50,
2224 - XW2A,
2305 - SO50,
2355 - XW2A,
0048 - SO50
73,
Ken
VE3HLS
------------------------------
Message: 7
Date: Sat, 24 Sep 2016 09:35:51 +0100
From: "Jim Heck" <jim@xxxxxx.xx.xxx>
To: "AMSAT BB" <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AO-73/FUNcube-1
Message-ID: <D02817C346FF40C0AF03D2FD8AC2CAB7@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Folks,
Just to say that the mode has been switch just now to full time
transponder mode.
Sorry, but was unable to switch last night due to command station
availability. As usual we plan to switch back to education mode on Sunday pm
(UTC).
73s Jim G3WGM
------------------------------
Message: 8
Date: Sat, 24 Sep 2016 09:45:06 +0100
From: "Simon Brown" <simon@xxxxxxxxx.xxx>
To: "'AMSAT BB'" <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AO-73/FUNcube-1
Message-ID: <004901d2163f$f3467f40$d9d37dc0$@xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Jim,
I was watching a pass this morning - as soon as it went out of total eclipse
- poof - no transponder. I guessed this may be due to the BATC convention...
Simon Brown, GK4ELI
http://sdr-radio.com
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Jim Heck
Sent: 24 September 2016 09:36
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AO-73/FUNcube-1
Hi Folks,
Just to say that the mode has been switch just now to full time
transponder mode.
Sorry, but was unable to switch last night due to command station
availability. As usual we plan to switch back to education mode on Sunday pm
(UTC).
73s Jim G3WGM
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available to all
interested persons worldwide without requiring membership. Opinions
expressed are solely those of the author, and do not reflect the official
views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 9
Date: Sat, 24 Sep 2016 21:21:14 +1000
From: Andrew Rich <vk4tec@xxxxxxxxxxxxx.xxx>
To: Matthew Stevens <matthew@xxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] SDR monitoring/telemetry station
Message-ID: <F8CA176C-AC9E-40D9-9AB7-DF605C819B4B@xxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
RTL SDR dongle
I see it can do multiple freqs at once
Depends on how far you want to go - you can have a fully blown rotator
controlled and radio station
Andrew
------------------------------------------
Andrew Rich VK4TEC
w www.tech-software.net
m vk4tec@xxxxxxxxxxxxx.xxx
> On 24 Sep 2016, at 6:26 AM, Matthew Stevens <matthew@xxxxxxxxx.xxx> wrote:
>
> So, after discovering that trying to process telemetry data from the
> audio log I recorded out of my D72A doesn't work at all, I'm kicking
> around the idea of getting an SDR receiver to monitor Fox/Funcube
> telemetry, as well as use for general HF/air band/satellite reception.
>
> My first thought is to use an SDRplay hooked up to my computer as a
> more-or-less unattended monitoring station. I'm aware of the Funcube
> dongle, but it looks like the SDRplay is a little more versatile as
> far as general SDR use, not just sat telemetry. In theory it looks
> like I can set up HDSDR with an SDRplay to record automatically on
> intervals, and then process telemetry after the fact. In
> practice....Has anyone used this approach? Or have a better way?
>
> My other question is about antennas. I know there isn't going to be
> any one antenna that will work for everything. At first I will
> probably just use a spare 2m/440 mag mount I have lying around, stuck
> on the metal roof of my house. Just curious what others are using?
>
> thanks,
>
> - Matthew KK4FEM
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 10
Date: Fri, 23 Sep 2016 15:04:13 -0400
From: Paul Andrews <w2hro.fn20@xxxxx.xxx>
To: Andrew Rich <vk4tec@xxxxxxxxxxxxx.xxx>
Cc: Clayton W5PFG <w5pfg@xxxxx.xxx>, "amsat-bb@xxxxx.xxxx
<amsat-bb@xxxxx.xxx>, Paul Stoetzer <n8hm@xxxx.xxx>
Subject: Re: [amsat-bb] Satellite tracking in MAC OS X
Message-ID:
<CAOsf+NSwEKOL6eye675nHVv9zZHjCTCNMrnQHELiXL0+ASnvog@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I used MacDoppler and it is a very good satellite station control
application. Controls my FT-847 via CAT and my SPID RAZ rotor. The
developers provide no cost feature upgrades about 4 times per year.
Good Luck with it. 73 - Paul - W2HRO
On Fri, Sep 23, 2016 at 10:59 AM, Andrew Rich <vk4tec@xxxxxxxxxxxxx.xxx>
wrote:
> Hello
>
> Can you tell me the preferred satellite tracking program that runs on a
MAC ?
>
> Andrew
>
> ------------------------------------------
> Andrew Rich VK4TEC
> w www.tech-software.net
> m vk4tec@xxxxxxxxxxxxx.xxx
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 11
Date: Sat, 24 Sep 2016 12:29:33 +0100
From: "Simon Brown" <simon@xxxxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] SDR monitoring/telemetry station
Message-ID: <005601d21656$ec35e800$c4a1b800$@xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
But,
Only an 8-bit device, therefore with limited dynamic range. The AirSpy Mini
(the AirSpy dongle flavour) https://www.itead.cc/airspy-mini.html is a much
better option, especially with the latest software support in SDR#.
FWIW a full-blown station is what I'm working on myself:
http://sdr-satellites.com/
Simon Brown, GK4ELI
http://sdr-radio.com
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Andrew Rich
RTL SDR dongle
I see it can do multiple freqs at once
Depends on how far you want to go - you can have a fully blown rotator
controlled and radio station
------------------------------
Message: 12
Date: Sat, 24 Sep 2016 12:30:03 +0100
From: "Simon Brown" <simon@xxxxxxxxx.xxx>
To: "'AMSAT BB'" <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AO-73/FUNcube-1
Message-ID: <005701d21656$fdf5f940$f9e1ebc0$@xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Or even last night as I come to think of it :)
Simon Brown, GK4ELI
http://sdr-radio.com
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Simon Brown
Sent: 24 September 2016 09:45
To: 'AMSAT BB' <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AO-73/FUNcube-1
Jim,
I was watching a pass this morning - as soon as it went out of total eclipse
- poof - no transponder. I guessed this may be due to the BATC convention...
Simon Brown, GK4ELI
http://sdr-radio.com
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Jim Heck
Sent: 24 September 2016 09:36
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AO-73/FUNcube-1
Hi Folks,
Just to say that the mode has been switch just now to full time
transponder mode.
Sorry, but was unable to switch last night due to command station
availability. As usual we plan to switch back to education mode on Sunday pm
(UTC).
73s Jim G3WGM
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available to all
interested persons worldwide without requiring membership. Opinions
expressed are solely those of the author, and do not reflect the official
views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available to all
interested persons worldwide without requiring membership. Opinions
expressed are solely those of the author, and do not reflect the official
views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 13
Date: Sat, 24 Sep 2016 21:36:47 +1000
From: Andrew Rich <vk4tec@xxxxxxxxxxxxx.xxx>
To: Simon Brown <simon@xxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] SDR monitoring/telemetry station
Message-ID: <625CD1C7-1710-46F5-A39B-C5225660BF16@xxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Yep
+ RTL SDR
+ AirSpy Mini
+ LimeSDR
Andrew
------------------------------------------
Andrew Rich VK4TEC
w www.tech-software.net
m vk4tec@xxxxxxxxxxxxx.xxx
> On 24 Sep 2016, at 9:29 PM, Simon Brown <simon@xxxxxxxxx.xxx> wrote:
>
> But,
>
> Only an 8-bit device, therefore with limited dynamic range. The AirSpy Mini
> (the AirSpy dongle flavour) https://www.itead.cc/airspy-mini.html is a much
> better option, especially with the latest software support in SDR#.
>
> FWIW a full-blown station is what I'm working on myself:
> http://sdr-satellites.com/
>
> Simon Brown, GK4ELI
> http://sdr-radio.com
>
> -----Original Message-----
> From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Andrew Rich
>
> RTL SDR dongle
>
> I see it can do multiple freqs at once
>
> Depends on how far you want to go - you can have a fully blown rotator
> controlled and radio station
>
> _______________________________________________
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> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
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------------------------------
Message: 14
Date: Sat, 24 Sep 2016 21:40:58 +1000
From: Andrew Rich <vk4tec@xxxxxxxxxxxxx.xxx>
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] MacDoppler Question
Message-ID: <A5D2C82A-CC25-4EB3-A5C4-F59404C3ACC7@xxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Hello
I have a question about the functionality of the MacDoppler program
I have a list of satellites down the bottom.
I have added the NOAA series of weather satellites.
But they don?t get into the list
Does that mean they are too far away in time ?
Or have I failed to add them to the list correctly ?
Andrew
------------------------------------------
Andrew Rich VK4TEC
w www.tech-software.net
m vk4tec@xxxxxxxxxxxxx.xxx
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@xxxxx.xxx.
AMSAT-NA makes this open forum available to all interested persons worldwide
without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT member? Join now to support the amateur satellite program!
http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 11, Issue 302
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