| |
CX2SA > SATDIG 12.01.14 21:02l 416 Lines 13152 Bytes #999 (0) @ WW
BID : AMSATBB913
Read: GUEST
Subj: AMSAT-BB-digest V9 13
Path: IZ3LSV<IK2XDE<DB0RES<DB0ANF<CX2SA
Sent: 140112/2002Z @:CX2SA.SAL.URY.SA #:2519 [Salto] FBB7.00e $:AMSATBB913
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: [aprssig] DTMF on HF? (WD8ARZ)
2. ANS-012 AMSAT News Service Weekly Bulletins (Lee McLamb)
3. SO-50 Over Europe (Peter Wilson)
4. Re: SO-50 Over Europe (M5AKA)
----------------------------------------------------------------------
Message: 1
Date: Sat, 11 Jan 2014 13:51:25 -0500
From: WD8ARZ <wd8arz@xx.xxxxxx.xxx>
To: TAPR APRS Mailing List <aprssig@xxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: [aprssig] DTMF on HF?
Message-ID: <52D192AD.40406@xx.xxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hello Bob, Good Saturday from Bill - WD8ARZ the Geiger Counter HF Mobile
dude .... hi hi
The topics / Links below might be some starting points to take in other
directions for what your looking for Bob. These links are ham hf radio
related, though there are hf aircraft versions as you know.
Though the MarsAle group I have been in for more than a decade has had
selcodes assigned by Bonnie to be used on HF, it didnt catch on as far
as I know. Plenty of software out there for this mode, such as multipsk.
Suspect this will at least generate some conversations.... hi hi
73 from Bill - WD8ARZ
=============================
Selective Calling (SELCAL) and ALE
http://hflink.com/articles/
HF Selcall Evolution
File Format: Microsoft Powerpoint
1. The Evolution of Codan Selcall ......In the beginning God created
493.1 (Kyoto 1978) by means of CCIR. 2. Basic 4 Digit Selcall ......And
493.1 begat the Codan ...
hflink.com
hflink.com/selcall/Selcall%20evolution.ppt
International Amateur Radio HF Selcall Channels
All types of HF Digital Selective Calling CCIR 493 or ITU-M R.493 DSC
http://hflink.com/selcall/channels/
HF Selcall
This is an informational resource for HF Selcall. Selcall CCIR 493-4 is
the primary focus of this resource, and the variations of it that have
been developed for modern HF selective calling. References for ITU-R
M.493-n (Marine GMDSS DSC) types of digital selective calling also are
included. The long term objective of this resource is to provide
information about the use of these types of HF Selcall in various radio
communication services. Please refer to the original documents of the
various standards and recommendations for more detail and updates.
http://hflink.com/selcall/
=============================
On 1/10/2014 12:10 PM, Robert Bruninga wrote:
>
> Has anyone had any experience with any success at DTMF working on HF
> for some rudimentary commands?
>
> I know tuning is critical as well as inter-tone noise must be way down.
>
> Just thought maybe someone has experimented with it.
>
> Bob, WB4aPR
>
------------------------------
Message: 2
Date: Sat, 11 Jan 2014 23:11:45 -0500
From: Lee McLamb <ku4os@xxx.xx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] ANS-012 AMSAT News Service Weekly Bulletins
Message-ID: <FB.90.00728.11612D25@xxxxxxxxxxxxx.xxxx.xx.xxx>
Content-Type: text/plain; charset="iso-8859-1"; format=flowed
AMSAT NEWS SERVICE
ANS-012
The AMSAT News Service bulletins are a free, weekly news and infor-
mation service of AMSAT North America, The Radio Amateur Satellite
Corporation. ANS publishes news related to Amateur Radio in Space
including reports on the activities of a worldwide group of Amateur
Radio operators who share an active interest in designing, building,
launching and communicating through analog and digital Amateur Radio
satellites.
The news feed on http://www.amsat.org publishes news of Amateur
Radio in Space as soon as our volunteers can post it.
Please send any amateur satellite news or reports to:
ans-editor at amsat.org.
In this edition:
* Ham radio CubeSats launched to ISS
* AMSAT SKN Best Fist Nominations Due
* KARTS Challenges Clubs to Contribute to the SA AMSAT Cubesat Project
* UK Amateur Radio Groups Respond to 2.4 and 5 GHz Sharing Proposal
* UNSA-SAT1 ? The first 3.4 GHz CubeSat
SB SAT @ AMSAT $ANS-012.01
ANS-005 AMSAT News Service Weekly Bulletins
AMSAT News Service Bulletin 012.01
From AMSAT HQ SILVER SPRING, MD.
January 12, 2014
To All RADIO AMATEURS
BID: $ANS-012.01
Ham radio CubeSats launched to ISS
On Thursday, January 9 at 1807 UT an Antares rocket launched the Cygnus
freighter carrying a cargo of CubeSats to the International Space Station.
There are four amateur radio CubeSats: LituanicaSat-1, LitSat-1, ArduSat-2 and
UAPSat-1. Also onboard is the 915 MHz CubeSat SkyCube and twenty eight 3U
CubeSats from Planet Labs.
LituanicaSat-1 carries a 145/435 MHz FM
transponder while LitSat-1 is thought to
carry a 435/145 MHz linear transponder for SSB/CW communications.
It is expected the CubeSats will be deployed from the ISS in the coming
months.
The IARU coordinated frequencies are listed as:
LituanicaSAT-1
? FM Transponder Uplink 145.950 MHz Downlink 435.180 MHz
? AX25 Uplink 145.850 MHz AX25 Downlink 437.550 MHz
? CW Beacon 437.275 MHz
Facebook https://www.facebook.com/Lituanicasat1
LitSat-1
? SSB Transponder Uplink 435.180 MHz Downlink 145.950 MHz
? AX25 Uplink 437.550 MHz Downlink 145.850 MHz
Facebook https://www.facebook.com/palydovas
ArduSat
? 9k6 MSK CCSDS data format downlink 437.? MHz
http://www.kickstarter.com/projects/575960623/ardusat-your-arduino-experiment-
in
-space
UAPSAT
? AX.25 Packet Radio uplink 145.980 MHz downlink 437.385 MHz
[ANS thanks AMSAT-UK for the above information]
---------------------------------------------------------------------
AMSAT SKN Best Fist Nominations Due
Thanks to all who participated in AMSAT's Straight Key Night on OSCAR 2014.
If
you have not already done so, please take a moment to nominate someone you
worked for Best Fist. Your nominee need not have the best fist of those you
heard, just of those you worked. Send your nomination to w2rs@xxxxx.xxx.
A list of those nominated will be published in early February.
[ANS thanks Ray, W2RS, for the above information]
---------------------------------------------------------------------
KARTS Challenges Clubs to Contribute to the SA AMSAT Cubesat Project
The Kempton Park Amateur Radio Technical Society, KARTS, has taken up
the fund raising challenge for SA AMSAT's first CubeSat currently
named KLETSkous by making a R500 donation to the fund. Chairman, Nico
van Rensburg, ZS6QL, says although it may initially be a relatively
small amount in relation to the funds ultimately required it is a
start. "Our club challenges all other clubs to match or better our
donation. Collectively we can help raising enough funds to make it
happen".
SA AMSAT is appreciative of the KARTS donation and thanks the members
of the club for their support and initiative. A donor list has been
set up on the SA AMSAT website at www.amsatsa.org.za to acknowledge
supporters of the project. The bank account for contributions is SA
AMSAT, ABSA Bank, account number 560 153 171. The branch code is 632
005.
For contributions of R500 and over a certificate of appreciation is
sent to the donor, however, all contribution, irrespective of the
amount, will be listed on the www.amsatsa.org.za.
[ANS thanks SARL News in English 1/4/2014 for the above information]
---------------------------------------------------------------------
UK Amateur Radio Groups Respond to 2.4 and 5 GHz Sharing Proposal
The joint RSGB, UK Microwave Group, AMSAT-UK and BATC response says
The amateur and amateur satellite services have
secondary allocations in the 2.4
and 5GHz bands (which would be impacted by further Wi-Fi growth), and are host
to a variety of usage including amateur use including terrestrial,
Earth-Moon-Earth(EME) and satellite communications.
We are particularly concerned to keep at least some segments available for
noise-free weak-signal communications. Whilst recognising that Wi-Fi has an
important economic contribution, we also have
concerns regards recent moves in a
EU Mandate to CEPT that would make 5GHz Wi-Fi co-Primary rather than
License-exempt.
Read the joint response at
http://stakeholders.ofcom.org.uk/binaries/consultations/
spectrum-sharing/responses/RSGB.pdf
The other responses are at
http://stakeholders.ofcom.org.uk/consultations/spectrum-sharing/
?showResponses=true
Ofcom Spectrum Sharing Consultation
http://www.southgatearc.org/news/august2013/
ofcom_spectrum_sharing_consultation.htm
[ANS thanks Southgate ARC for the above information]
---------------------------------------------------------------------
UNSA-SAT1 ? The first 3.4 GHz CubeSat
UNSA-SAT1 hopes to be the first CubeSat to make use of the 3400 MHz ITU
Amateur-Satellite Service allocation.
Built by students at the Instituto Astron?mico y Aeroespacial Pedro Paulet in
Peru, UNSA-SAT1 is a 2U spacecraft (20x10x10cm) which will be part of the QB50
constellation of 50 CubeSats.
The aims of this CubeSat include: upper atmosphere science; radio
communication
experiments; technology demonstrator; education, training and outreach.
The team are proposing a 435 MHz transceiver using BPSK and additional
transmitters on 2.4 GHz,and 5.8 GHz. They also
also hope to have a 230 kbps BPSK
downlink on 3.4 GHz ? this will only operate in Region 2 when the spacecraft
is
overhead the groundstation in Peru.
The ITU Amateur-Satellite allocation at 3400-3410 MHz is available in ITU
Regions 2 and 3 but not currently in Region 1 (Europe/Africa) although it is
believed Denmark and Norway have allocated the band to the Amateur-Satellite
Service.
QB50: Amateur Radio transponder payloads to launch 2014
http://amsat-uk.org/2013/07/20/qb50-amateur-radio-transponder-payloads-to-laun
ch
-2014/
IARU Amateur Satellite Frequency Coordination Pages
http://www.amsat.org.uk/iaru1
[ANS thanks Trevor, M5AKA, for the above information]
In addition to regular membership, AMSAT offers membership in the
President's Club. Members of the President's Club, as sustaining
donors to AMSAT Project Funds, will be eligible to receive addi-
tional benefits. Application forms are available from the AMSAT
Office.
Primary and secondary school students are eligible for membership
at one-half the standard yearly rate. Post-secondary school students
enrolled in at least half time status shall be eligible for the stu-
dent rate for a maximum of 6 post-secondary years in this status.
Contact Martha at the AMSAT Office for additional student membership
information.
73,
This week's ANS Editor,
Lee McLamb, KU4OS
ku4os at amsat dot org
------------------------------
Message: 3
Date: Sun, 12 Jan 2014 18:13:01 -0000
From: "Peter Wilson" <protest@xxxxxxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] SO-50 Over Europe
Message-ID: <000001cf0fc1$ee1a9ce0$ca4fd6a0$@xxxxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Hi All,
I am having great fun and a reasonable amount of success on all the SSB
satellites, but not a lot of luck on SO-50.
It seems to me that everyone is trying to get in - with little success -
leading to very few contacts between anyone made on each pass.
Is it me, or is this usual on a single channel FM satellite?
I've seen a number of YouTube videos of this satellite over the USA with
many contacts made with hand-held rigs?
Peter
G8KEK
------------------------------
Message: 4
Date: Sun, 12 Jan 2014 19:32:34 +0000 (GMT)
From: M5AKA <m5aka@xxxxx.xx.xx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: SO-50 Over Europe
Message-ID:
<1389555154.93684.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Hi Peter,
Single channel FM transponders work best when there aren't many users. As
you've noticed over densely populated areas it can be difficult to make a
contact during peak times, but persevere, you'll succeed eventually.
Back in 2005 Pedro EB4DKA had some contacts via SO-50 running just 300 mW
from an Alinco DJ-C5 HT with whip antenna and I recall he even achieved a
contact running just 50? mW.
http://www.southgatearc.org/satellites/eb4dka.htm
73 Trevor M5AKA
On Sunday, 12 January 2014, 18:19, Peter Wilson <protest@xxxxxxxxxxx.xxx>
wrote:
Hi All,
I am having great fun and a reasonable amount of success on all the SSB
satellites, but not a lot of luck on SO-50.
It seems to me that everyone is trying to get in - with little success -
leading to very few contacts between anyone? made on each pass.
Is it me, or is this usual on a single channel FM satellite?
I've seen a number of YouTube videos of this satellite over the USA with
many contacts made with hand-held rigs?
Peter
G8KEK
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 9, Issue 13
***************************************
Read previous mail | Read next mail
| |
