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CX2SA > SATDIG 29.06.16 20:44l 884 Lines 36981 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: Financial arguments about full duplex (Michael)
2. Re: Financial arguments about full duplex (skristof@xxxxxxx.xxxx
3. Anyone using SDRPlay RSP and SDRConsole for the birds?
(Mark Lunday)
4. Re: Amateur communication
satelliteshttps://mail.aol.com/webmail-std/en-us/suite#
(rsoifer1@xxx.xxxx
5. Re: Amateur communication
satelliteshttps://mail.aol.com/webmail-std/en-us/suite#
(Edson W. R. Pereira)
6. Re: Amateur communication
satelliteshttps://mail.aol.com/webmail-std (RSoifer1@xxx.xxxx
7. Re: Amateur communication
satelliteshttps://mail.aol.com/webmail-std (Paul Stoetzer)
8. Fwd: [PNWVHFS] For Sale Icom IC-275H (Bob- W7LRD)
9. Re: Amateur communication
satelliteshttps://mail.aol.com/webmail-std (rsoifer1@xxx.xxxx
10. US barriers to orbit (Re: Amateur communication satellites
(Peter Laws)
----------------------------------------------------------------------
Message: 1
Date: Tue, 28 Jun 2016 19:18:48 -0400
From: Michael <Mat_62@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Financial arguments about full duplex
Message-ID: <577305D8.9030302@xxxxxxx.xxx>
Content-Type: text/plain; charset=windows-1252; format=flowed
I know full well what it's like to be on a budget and not have a lot of
disposable income to spend on radio. I'm not a wealthy person by any
stretch of the imagination. I've known a few hams in my lifetime who
could spend what they wanted when they wanted to on radio.
Unfortunately, most of us are not that lucky.
When I first got into satellite operation I had inherited a good deal
of HF radio equipment from my late Father, the original holder of the
callsign W4HIJ. It was more stuff than I could use and I managed to
sell it off slowly and generate enough funds to buy myself a Kenwood
TS-2000X. Since it covered "DC to daylight" I figured that might be the
last radio I would ever buy. I had an HF antenna to hook up to it but
the problem was that since I had blown my whole wad of cash on the rig,
I had no money left for a satellite antenna system. So I began scrimping
and saving every dime I could and began doing lots of research on the
internet. Eventually I was able to build a couple of WA5VJB cheap yagis
with PVC booms and aluminum elements taken from an old damaged 11
element 2 meter beam. I found a circuit on the internet that used a
BASIC STAMP to interface with the shack PC and control a couple of old
Gemini OR-360 TV antenna rotators which I found a source for online. I
had to buy everything like the rotators and circuit components almost
one piece at a time as money permitted but I eventually had a full
fledged sat station with a PC controlled rig and homebrew Az/El antenna
control. This was during the heyday of A0-51 and I even managed to get
my hands on some S band stuff although I never could get it to work.
Unfortunately that thing called life reared it's head and I had no
choice but to sell my rig to pay for a major repair on one of the family
cars. Family always comes first. I left my antenna system up because it
was also controlling the Azimuth pointing of an HF mini beam that I used
with an old boat anchor HF rig that I had kept as a spare. Eventually
the PVC booms on the homebrew sat antennas began to weaken and crack due
to constant UV exposure. I had painted them but it didn't help so I took
them down. It was also about the same time that something went west in
the homebrew rotator control and took out the power transformer, BASIC
STAMP and a couple of relays and I had no money to fix it and replace
the bad components.
I had a couple of 2 meter and 70cm HT's so I built a dual band version
of the cheap yagi and devised a mount to put it on an old camera tripod
I already had to work full duplex on some of the FM sats. However, I
quickly discovered that standing outside on the deck in the heat or cold
to work FM sats just wasn't my cup of tea. More power to those of you
who enjoy it but I'm just not happy without the comfort of a base
station located in the indoor shack.
I was off the satellites for awhile and acquired a Flex 1500 which I
enjoyed immensely but again had to sell to help with some family
financial issues.
Fast forward to the very recent past. We actually got a pretty good
tax refund this year and after taking care of various bills and such
there was enough left over that my beautiful XYL let me combine it with
money I had been saving to purchase a Yaesu FT-991 and a Funcube Pro +
SDR dongle. I also thought that I was going to be able to get the Yaesu
AZ/EL rotator system that I've coveted for years but again that fell
through because of family financial issues. My plan was and still is to
have a new full duplex satellite base station but right now I have
nothing to rotate antennas even if only in the azimuth plane and
foregoing elevation control. Things have gotten extremely tight again
financially and I'm having a hard time saving even for a basic TV rotator.
My point in relating this whole story is to point out and explain that
I'm not trying to be some elitist snob when I'm insisting that folks
need to be working full duplex. I'm actually probably worse off than a
lot of you when it comes to finances and disposable income for hobbies.
Maybe the word "mandatory" is a little much but it was originally
Clint's word and not mine. I just picked it up out of his PDF and maybe
used it a little stronger than I should have.
Full duplex should be a "best practice" and if someone is not using
it for whatever reason it should be something they aspire to and
implement in whatever type sat setup they have as swiftly as possible.
If you have never used it before you will be amazed at how much simpler
and efficient it makes things not only for you but for the entire group
of sat operators who are on the bird at any given time.
73,
Michael W4HIJ
------------------------------
Message: 2
Date: Tue, 28 Jun 2016 19:34:31 -0400
From: skristof@xxxxxxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Financial arguments about full duplex
Message-ID: <1d97d15b7d18c203e68e3e187806098d@xxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII
"Full duplex should be a "best practice" and if someone is not using it
for whatever reason it should be something they aspire to and implement
in whatever type sat setup they have as swiftly as possible."
Agreed.
Steve AI9IN
On 2016-06-28 19:18, Michael wrote:
> I know full well what it's like to be on a budget and not have a lot of
disposable income to spend on radio. I'm not a wealthy person by any stretch
of the imagination. I've known a few hams in my lifetime who could spend
what they wanted when they wanted to on radio. Unfortunately, most of us are
not that lucky.
> When I first got into satellite operation I had inherited a good deal of
HF radio equipment from my late Father, the original holder of the callsign
W4HIJ. It was more stuff than I could use and I managed to sell it off
slowly and generate enough funds to buy myself a Kenwood TS-2000X. Since it
covered "DC to daylight" I figured that might be the last radio I would ever
buy. I had an HF antenna to hook up to it but the problem was that since I
had blown my whole wad of cash on the rig, I had no money left for a
satellite antenna system. So I began scrimping and saving every dime I could
and began doing lots of research on the internet. Eventually I was able to
build a couple of WA5VJB cheap yagis with PVC booms and aluminum elements
taken from an old damaged 11 element 2 meter beam. I found a circuit on the
internet that used a BASIC STAMP to interface with the shack PC and control
a couple of old Gemini OR-360 TV antenna rotators which I found a source for
online. I had t
o buy
everything like the rotators and circuit components almost one piece at a
time as money permitted but I eventually had a full fledged sat station with
a PC controlled rig and homebrew Az/El antenna control. This was during the
heyday of A0-51 and I even managed to get my hands on some S band stuff
although I never could get it to work.
> Unfortunately that thing called life reared it's head and I had no choice
but to sell my rig to pay for a major repair on one of the family cars.
Family always comes first. I left my antenna system up because it was also
controlling the Azimuth pointing of an HF mini beam that I used with an old
boat anchor HF rig that I had kept as a spare. Eventually the PVC booms on
the homebrew sat antennas began to weaken and crack due to constant UV
exposure. I had painted them but it didn't help so I took them down. It was
also about the same time that something went west in the homebrew rotator
control and took out the power transformer, BASIC STAMP and a couple of
relays and I had no money to fix it and replace the bad components.
> I had a couple of 2 meter and 70cm HT's so I built a dual band version of
the cheap yagi and devised a mount to put it on an old camera tripod I
already had to work full duplex on some of the FM sats. However, I quickly
discovered that standing outside on the deck in the heat or cold to work FM
sats just wasn't my cup of tea. More power to those of you who enjoy it but
I'm just not happy without the comfort of a base station located in the
indoor shack.
> I was off the satellites for awhile and acquired a Flex 1500 which I
enjoyed immensely but again had to sell to help with some family financial
issues.
> Fast forward to the very recent past. We actually got a pretty good tax
refund this year and after taking care of various bills and such there was
enough left over that my beautiful XYL let me combine it with money I had
been saving to purchase a Yaesu FT-991 and a Funcube Pro + SDR dongle. I
also thought that I was going to be able to get the Yaesu AZ/EL rotator
system that I've coveted for years but again that fell through because of
family financial issues. My plan was and still is to have a new full duplex
satellite base station but right now I have nothing to rotate antennas even
if only in the azimuth plane and foregoing elevation control. Things have
gotten extremely tight again financially and I'm having a hard time saving
even for a basic TV rotator.
> My point in relating this whole story is to point out and explain that I'm
not trying to be some elitist snob when I'm insisting that folks need to be
working full duplex. I'm actually probably worse off than a lot of you when
it comes to finances and disposable income for hobbies. Maybe the word
"mandatory" is a little much but it was originally Clint's word and not
mine. I just picked it up out of his PDF and maybe used it a little stronger
than I should have.
> Full duplex should be a "best practice" and if someone is not using it
for whatever reason it should be something they aspire to and implement in
whatever type sat setup they have as swiftly as possible. If you have never
used it before you will be amazed at how much simpler and efficient it makes
things not only for you but for the entire group of sat operators who are on
the bird at any given time.
> 73,
> Michael W4HIJ
> _______________________________________________
> 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: 3
Date: Tue, 28 Jun 2016 22:36:19 -0400
From: "Mark Lunday" <wd4elg@xxxxx.xx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Anyone using SDRPlay RSP and SDRConsole for the
birds?
Message-ID: <033401d1d1af$0513a2f0$0f3ae8d0$@xx.xxx>
Content-Type: text/plain; charset="us-ascii"
I am using SDRConsole v2.3.
I have an FT817ND that I want to transmit
I have an SDR-Play RSP that I want to receive (NOT connected to the FT817ND)
I can connect to the FT817ND, but cannot get it to change frequency to the
passband I want for a particular satellite, which I have entered into the
database for that satellite.
How do I set this up so that when I select a satellite (FO-29), it sets the
correct passband for receive on the SDR-Play RSP and it sets the correct
frequency on the FT817ND for transmit (and adjusts the transmit for
doppler)?
I don't see any instructions which relate to this use case, can someone
please point me in the correct direction? Thanks.
Mark Lunday, WD4ELG
Greensboro, NC FM06be
wd4elg@xxxx.xxx
http://wd4elg.blogspot.com
------------------------------
Message: 4
Date: Wed, 29 Jun 2016 08:28:03 -0400
From: rsoifer1@xxx.xxx
To: n8hm@xxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Amateur communication
satelliteshttps://mail.aol.com/webmail-std/en-us/suite#
Message-ID: <1559c216a10-2b4-4d3@xxxxxxxxxx.xxxx.xxx.xxx>
Content-Type: text/plain; charset=utf-8
Paul,
I didn't say that AO-7, FO-29 and SO-50 are the only communication
satellites, only that they are the most popular and useful.
Why is that? As you say, some of that has to do with altitude, which is
largely beyond our control. Some has to do with low power output, which
depends on satellite size. Some, too, has to do with operating schedule: is
it always on?
73 Ray
-----Original Message--- do
From: Paul Stoetzer n8hm@xxxx.xxx is
To: rsoifer1 <rsoifer1@xxx.xxx>
Cc: amsat-bb <amsat-bb@xxxxx.xxx
Sent: Tue, Jun 28, 2016 1:48 pm
Subject: Re: [amsat-bb] Amateur communication satellites
Ray,
The CW beacon on FO-29 does still function. We are definitely
fortunate that FO-29 still works and works very well. It is clearly
the most popular linear transponder satellite due to it's wide
passband and high orbit.
I would note that we are not starved for linear transponders. There
are 7 in orbit and active and 4 in orbit awaiting activation plus at
least one more scheduled for launch this year (Nayif-1). As far as FM
satellites, there are three in orbit with two of those available 24/7
and a third with an errattic schedule. However, between now and
January, three more FM satellites are scheduled to launch (Fox-1Cliff,
Fox-1D, and RadFxSat/Fox-1B).
The issue, of course, is the orbits of these satellite don't approach
the 1460km apogee or 1330km apogee of FO-29. We can blame debris
mitigation rules for that! Hopefully we will find a way to get some
higher orbiting satellites up in the future (including GEO/HEO).
73,
Paul, N8HM
On Tue, Jun 28, 2016 at 4:28 PM, rsoifer1--- via AMSAT-BB
<amsat-bb@xxxxx.xxx> wrote:
>
>
> This past weekend, I made three ARRL/AMSAT Field Day QSOs via FO-29
(JAS-2). Nothing noteworthy about that, except that FO-29 will be 20 years
old on August 17th. We're very fortunate that its linear transponder still
works. The CW beacon and digital transponders are no longer functioning.
>
> Two more of the satellites carrying the bulk of amateur satellite
communication are well beyond their design lifetimes. SO-50, our main FM
transponder satellite, will be 14 years old in December. Then, of course,
there is AO-7, whose linear transponders miraculously are still functioning
some of the time. In November it will be 42 years young.
>
> Educational and research satellites are well and good, but amateur
satellite communication is still overly dependent on aging space hardware.
To those who are building new amateur communication transponders, especially
linear transponders in the UHF and VHF bands, best wishes for success. I
wish there were more of you. Maybe there will be.
>
> 73 Ray W2RS
>
>
>
>
> _______________________________________________
> 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: 5
Date: Wed, 29 Jun 2016 10:57:06 -0300
From: "Edson W. R. Pereira" <ewpereira@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Amateur communication
satelliteshttps://mail.aol.com/webmail-std/en-us/suite#
Message-ID:
<CALNQy49H8YHxHEDBX46REUQ7r=gOr9zx3AjBj8sJDDGZdgf+-Q@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
One area that I believe would welcome more experimentation is digital
transponders and digital repeaters. I think there is a vast territory for
experimentation (protocols, ground software, etc). With some careful
engineering, a digital transponder could be operated on the same frequency
using half-duplex. This would simplify the antenna system and ease the
operation.
73, Edson PY2SDR
---
- We humans have the capability to do amazing things if we work together.
- N?s seres humanos temos a capacidade de fazer coisas incr?veis se
trabalharmos juntos.
On Wed, Jun 29, 2016 at 9:28 AM, rsoifer1--- via AMSAT-BB <
amsat-bb@xxxxx.xxx> wrote:
>
>
>
>
>
>
>
>
>
>
>
> Paul,
>
>
>
>
>
> I didn't say that AO-7, FO-29 and SO-50 are the only communication
> satellites, only that they are the most popular and useful.
>
> Why is that? As you say, some of that has to do with altitude, which is
> largely beyond our control. Some has to do with low power output, which
> depends on satellite size. Some, too, has to do with operating schedule:
> is it always on?
>
> 73 Ray
> -----Original Message--- do
> From: Paul Stoetzer n8hm@xxxx.xxx is
> To: rsoifer1 <rsoifer1@xxx.xxx>
> Cc: amsat-bb <amsat-bb@xxxxx.xxx
> Sent: Tue, Jun 28, 2016 1:48 pm
> Subject: Re: [amsat-bb] Amateur communication satellites
>
> Ray,
>
> The CW beacon on FO-29 does still function. We are definitely
> fortunate that FO-29 still works and works very well. It is clearly
> the most popular linear transponder satellite due to it's wide
> passband and high orbit.
>
> I would note that we are not starved for linear transponders. There
> are 7 in orbit and active and 4 in orbit awaiting activation plus at
> least one more scheduled for launch this year (Nayif-1). As far as FM
> satellites, there are three in orbit with two of those available 24/7
> and a third with an errattic schedule. However, between now and
> January, three more FM satellites are scheduled to launch (Fox-1Cliff,
> Fox-1D, and RadFxSat/Fox-1B).
>
> The issue, of course, is the orbits of these satellite don't approach
> the 1460km apogee or 1330km apogee of FO-29. We can blame debris
> mitigation rules for that! Hopefully we will find a way to get some
> higher orbiting satellites up in the future (including GEO/HEO).
>
> 73,
>
> Paul, N8HM
>
> On Tue, Jun 28, 2016 at 4:28 PM, rsoifer1--- via AMSAT-BB
> <amsat-bb@xxxxx.xxx> wrote:
> >
> >
> > This past weekend, I made three ARRL/AMSAT Field Day QSOs via FO-29
> (JAS-2). Nothing noteworthy about that, except that FO-29 will be 20 years
> old on August 17th. We're very fortunate that its linear transponder still
> works. The CW beacon and digital transponders are no longer functioning.
> >
> > Two more of the satellites carrying the bulk of amateur satellite
> communication are well beyond their design lifetimes. SO-50, our main FM
> transponder satellite, will be 14 years old in December. Then, of course,
> there is AO-7, whose linear transponders miraculously are still functioning
> some of the time. In November it will be 42 years young.
> >
> > Educational and research satellites are well and good, but amateur
> satellite communication is still overly dependent on aging space hardware.
> To those who are building new amateur communication transponders,
> especially linear transponders in the UHF and VHF bands, best wishes for
> success. I wish there were more of you. Maybe there will be.
> >
> > 73 Ray W2RS
> >
> >
> >
> >
> > _______________________________________________
> > 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: 6
Date: Wed, 29 Jun 2016 10:47:32 -0400
From: RSoifer1@xxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Amateur communication
satelliteshttps://mail.aol.com/webmail-std
Message-ID: <338.1ac50cb6.44a53984@xxx.xxx>
Content-Type: text/plain; charset="US-ASCII"
Good thought, Edson. I hope someone follows through on it.
Kevin and others, let's also bear in mind that most of the satellites being
built today for operation in the amateur bands are coming from outside
North America. There are hundreds of them; to get an idea, look at the IARU
frequency coordination data base at _www.iaru.org/satellite_
(http://www.iaru.org/satellite) . Very few of these are communication
transponders.
Wouter, AMSAT-UK, and a few others are doing a great job; we need more of
them.
Within the US, when someone like Bob, WB4APR, tries to build amateur
communication sats, he runs into needless obstacles from FCC and NTIA.
The purpose of this thread is to encourage more people, inside and outside
the US, to consider building amateur comm sats. Especially outside North
America, there are more launch opportunities than we might think.
73 Ray W2RS
------------------------------
Message: 7
Date: Wed, 29 Jun 2016 11:30:51 -0400
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: RSoifer1@xxx.xxx
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Amateur communication
satelliteshttps://mail.aol.com/webmail-std
Message-ID:
<CABzOSOr9ZAvDFNA5pajywXa+v_DAfh2zmghAq=yJAwi0uv2jMQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
The amateur satellite fleet is mostly not aging. AO-7, FO-29, and
SO-50 are the exceptions and only comprise 25% of the active
satellites available for hams to work.
The other currently active satellites available for communication worldwide
are:
AO-73 (launched 2013, available in eclipse and on weekends)
AO-85 (launched 2015, available 24/7)
ISS APRS digipeater (available most of the time, except during school
contacts. spacewalks, and docking/undocking)
LilacSat-2 (launched 2015, available sporadically when command station
is available to turn it on)
NO-84 (launched 2015, PSK31 transponder available 24/7 + APRS
digipeater available as power budget permits)
UKube-1 (launched 2014, seemingly available 24/7 for now)
XW-2A (launched 2015, available 24/7)
XW-2C (launched 2015, available 24/7)
XW-2F (launched 2015, available 24/7)
A summary of available satellites and selected satellites scheduled
for launch is available on the AMSAT website at
http://www.amsat.org/wordpress/wp-content/uploads/2013/06/Active-Amateur-Radio
-Communications-Satellites.pdf
Several satellites have been launched (some quite recently) with the
promise of different forms of digital or analog communications
facilities. Some have failed to come to pass because of satellite
failure, which is natural. In several other cases, the satellite
operator has failed to provide any information about it to the amateur
community at large or seemingly ignored the promises of a secondary
communications mission.
There may also be several under development that we simply don't know
about yet. The XW-2 satellites only became known to the amateur
satellite community about four months prior to launch. AMSAT
Argentina's LUSEX transponder was discussed briefly last year, but the
details didn't become widely known until a few months ago.
I know there are quite a few projects that are at various stages of
development. I know of examples from Turkey, Japan, Thailand, and Cuba
all carrying transponders for amateur use. I have no idea how far
along those projects are of if they will ever come to fruition, but
they are out there.
I certainly agree that we need to convince anyone building an amateur
satellite to include transponder capability, even as a secondary
mission after the end of the primary mission. This capability is
already built into several satellites - nearly any satellite that uses
an ISIS full-duplex cubesat transceiver can be commanded into a
loopback mode that allows it to be used as an FM-to-DSB single channel
transponder (similar to AO-16). We just need to convince the operators
to command them into that mode when they are done with their
satellite! Triton-1 (launched on the same DNEPR launch as AO-73) was
supposed to be put into that mode at the conclusion of it's primary
mission, but that has not come to pass.
As far as US-built and launched amateur communications satellites,
Bob's regulatory challenges are unique to his particular situation,
but AMSAT-NA has already launched one 10 months ago, AO-85 (in orbit,
operational, and generally available 24/7), and has three more
scheduled to launch within the next seven months (Fox-1Cliff & Fox-1D
in Fall 2016, RadFxSat / Fox-1B in January 2017). A fifth, RadFxSat-2
/ Fox-1E has been selected for a NASA CSLI launch as well.
All of this discussion is ignoring the pending launch of Es'HailSat-2
with AMSAT-DL's geostationary P4A payload and the progress on AMSAT-NA
& Virginia Tech's P4B geosynchronous payload mission. There are lots
of exciting things in motion and we are definitely not in danger of
running out of things orbiting the earth for amateur radio operators
to communicate through any time soon.
73,
Paul, N8HM
On Wed, Jun 29, 2016 at 10:47 AM, RSoifer1--- via AMSAT-BB
<amsat-bb@xxxxx.xxx> wrote:
> Good thought, Edson. I hope someone follows through on it.
>
> Kevin and others, let's also bear in mind that most of the satellites being
> built today for operation in the amateur bands are coming from outside
> North America. There are hundreds of them; to get an idea, look at the
IARU
> frequency coordination data base at _www.iaru.org/satellite_
> (http://www.iaru.org/satellite) . Very few of these are communication
transponders.
> Wouter, AMSAT-UK, and a few others are doing a great job; we need more of
them.
>
> Within the US, when someone like Bob, WB4APR, tries to build amateur
> communication sats, he runs into needless obstacles from FCC and NTIA.
>
> The purpose of this thread is to encourage more people, inside and outside
> the US, to consider building amateur comm sats. Especially outside North
> America, there are more launch opportunities than we might think.
>
> 73 Ray W2RS
> _______________________________________________
> 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: 8
Date: Wed, 29 Jun 2016 16:15:11 +0000 (UTC)
From: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Fwd: [PNWVHFS] For Sale Icom IC-275H
Message-ID:
<41043945.28683472.1467216911865.JavaMail.zimbra@xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
just forwarding from my inbox
73 Bob W7LRD
----- Forwarded Message -----
From: adambarbera@xxxxx.xxx
To: "pnwvhfs" <pnwvhfs@xxxxxxxxxxxx.xxx>
Sent: Tuesday, June 28, 2016 9:48:50 PM
Subject: [PNWVHFS] For Sale Icom IC-275H
Hello everyone,
There is a local ham selling an Icom IC-275H. If interested you can contact
him directly. See the details below.
Thanks
Adam W2NCC
For sale Icom IC-275H 100 watts 2 meter all mode transceiver.featuring,
panel meter with SWR, FM Discriminator, ALC, in addition to Signal and PWR.
Front panel select/adjust of data switch, data level nob, RX audio notch
filer, RX audio tone control. Also has installed FL-83 CW Narrow filter.
Comes with original DC Power cord, Original SM-12 Mic, and original manual
Asking $500.00 OBO
For more information contact Martin Malliett
n7dff@xxxxx.xxx | 360.970.4088
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Message: 9
Date: Wed, 29 Jun 2016 12:18:41 -0400
From: rsoifer1@xxx.xxx
To: n8hm@xxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Amateur communication
satelliteshttps://mail.aol.com/webmail-std
Message-ID: <1559cf48f29-47a0-f29@xxxxxxxxxx.xxxx.xxx.xxx>
Content-Type: text/plain; charset=utf-8
Paul,
Thanks for gathering and publicizing that info. I hope people find it
helpful.
Putting on my IARU hat for the moment, though, I should remind everyone that
we were unable to coordinate XW-2A and XW-2C because their 2-meter operation
is outside the global satellite sub-band of 145.8-146.0 MHz. While there is
no law against using them, those who do should be aware of the possibility
of interference to or from other amateur operations.
73 Ray
-----Original Message-----
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: RSoifer1 <RSoifer1@xxx.xxx>
Cc: amsat-bb <amsat-bb@xxxxx.xxx>
Sent: Wed, Jun 29, 2016 8:30 am
Subject: Re: [amsat-bb] Amateur communication
satelliteshttps://mail.aol.com/webmail-std
The amateur satellite fleet is mostly not aging. AO-7, FO-29, and
SO-50 are the exceptions and only comprise 25% of the active
satellites available for hams to work.
The other currently active satellites available for communication worldwide
are:
AO-73 (launched 2013, available in eclipse and on weekends)
AO-85 (launched 2015, available 24/7)
ISS APRS digipeater (available most of the time, except during school
contacts. spacewalks, and docking/undocking)
LilacSat-2 (launched 2015, available sporadically when command station
is available to turn it on)
NO-84 (launched 2015, PSK31 transponder available 24/7 + APRS
digipeater available as power budget permits)
UKube-1 (launched 2014, seemingly available 24/7 for now)
XW-2A (launched 2015, available 24/7)
XW-2C (launched 2015, available 24/7)
XW-2F (launched 2015, available 24/7)
A summary of available satellites and selected satellites scheduled
for launch is available on the AMSAT website at
http://www.amsat.org/wordpress/wp-content/uploads/2013/06/Active-Amateur-Radio
-Communications-Satellites.pdf
Several satellites have been launched (some quite recently) with the
promise of different forms of digital or analog communications
facilities. Some have failed to come to pass because of satellite
failure, which is natural. In several other cases, the satellite
operator has failed to provide any information about it to the amateur
community at large or seemingly ignored the promises of a secondary
communications mission.
There may also be several under development that we simply don't know
about yet. The XW-2 satellites only became known to the amateur
satellite community about four months prior to launch. AMSAT
Argentina's LUSEX transponder was discussed briefly last year, but the
details didn't become widely known until a few months ago.
I know there are quite a few projects that are at various stages of
development. I know of examples from Turkey, Japan, Thailand, and Cuba
all carrying transponders for amateur use. I have no idea how far
along those projects are of if they will ever come to fruition, but
they are out there.
I certainly agree that we need to convince anyone building an amateur
satellite to include transponder capability, even as a secondary
mission after the end of the primary mission. This capability is
already built into several satellites - nearly any satellite that uses
an ISIS full-duplex cubesat transceiver can be commanded into a
loopback mode that allows it to be used as an FM-to-DSB single channel
transponder (similar to AO-16). We just need to convince the operators
to command them into that mode when they are done with their
satellite! Triton-1 (launched on the same DNEPR launch as AO-73) was
supposed to be put into that mode at the conclusion of it's primary
mission, but that has not come to pass.
As far as US-built and launched amateur communications satellites,
Bob's regulatory challenges are unique to his particular situation,
but AMSAT-NA has already launched one 10 months ago, AO-85 (in orbit,
operational, and generally available 24/7), and has three more
scheduled to launch within the next seven months (Fox-1Cliff & Fox-1D
in Fall 2016, RadFxSat / Fox-1B in January 2017). A fifth, RadFxSat-2
/ Fox-1E has been selected for a NASA CSLI launch as well.
All of this discussion is ignoring the pending launch of Es'HailSat-2
with AMSAT-DL's geostationary P4A payload and the progress on AMSAT-NA
& Virginia Tech's P4B geosynchronous payload mission. There are lots
of exciting things in motion and we are definitely not in danger of
running out of things orbiting the earth for amateur radio operators
to communicate through any time soon.
73,
Paul, N8HM
On Wed, Jun 29, 2016 at 10:47 AM, RSoifer1--- via AMSAT-BB
<amsat-bb@xxxxx.xxx> wrote:
> Good thought, Edson. I hope someone follows through on it.
>
> Kevin and others, let's also bear in mind that most of the satellites being
> built today for operation in the amateur bands are coming from outside
> North America. There are hundreds of them; to get an idea, look at the
IARU
> frequency coordination data base at _www.iaru.org/satellite_
> (http://www.iaru.org/satellite) . Very few of these are communication
transponders.
> Wouter, AMSAT-UK, and a few others are doing a great job; we need more of
them.
>
> Within the US, when someone like Bob, WB4APR, tries to build amateur
> communication sats, he runs into needless obstacles from FCC and NTIA.
>
> The purpose of this thread is to encourage more people, inside and outside
> the US, to consider building amateur comm sats. Especially outside North
> America, there are more launch opportunities than we might think.
>
> 73 Ray W2RS
> _______________________________________________
> 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: Wed, 29 Jun 2016 13:40:22 -0500
From: Peter Laws <plaws0@xxxxx.xxx>
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] US barriers to orbit (Re: Amateur communication
satellites
Message-ID:
<CANVAiQ_TwWniWry-9nEV=7=kzAzYQCH53mHrFeau5fQSz36PFw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
On Wed, Jun 29, 2016 at 9:47 AM, RSoifer1--- via AMSAT-BB
<amsat-bb@xxxxx.xxx> wrote:
>
> Within the US, when someone like Bob, WB4APR, tries to build amateur
> communication sats, he runs into needless obstacles from FCC and NTIA.
Expand, please.
Just joined, so no back issues of the Journal to reference (that I
know of ... and aside from the copy I got when I joined at Dayton).
--
Peter Laws | N5UWY | plaws plaws net | Travel by Train!
------------------------------
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 213
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