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CX2SA > SATDIG 20.04.11 05:06l 1101 Lines 34303 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: HF Satellite Experiment? (Nick Pugh K5QXJ)
2. Re: RF Quiet my digital recorder (KM9U)
3. Maritime Mobile Lessons Learned (K5OE)
4. Re: HF Satellite Experiment? (Bob Bruninga)
5. Balloon across Atlantic 21 April? (Bob Bruninga)
6. Re: HF Satellite Experiment? (Joe)
7. SATPC, IC910 & Doppler (w4upd)
8. Re: First Contact (Clint Bradford)
9. Re: HF Satellite Experiment? (James Duffey)
10. Revisiting LOTW satellite requirements (Tom Workman)
11. Re: Revisiting LOTW satellite requirements (saguaroastro@xxx.xxxx
12. Re: Revisiting LOTW satellite requirements (saguaroastro@xxx.xxxx
13. Re: Revisiting LOTW satellite requirements (saguaroastro@xxx.xxxx
14. Re: Revisiting LOTW satellite requirements
(Patrick STODDARD (WD9EWK/VA7EWK))
----------------------------------------------------------------------
Message: 1
Date: Tue, 19 Apr 2011 13:58:24 -0500
From: "Nick Pugh K5QXJ" <quadpugh@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: HF Satellite Experiment?
To: "'Bob Bruninga'" <bruninga@xxxx.xxx>, "'John Heath'"
<g7hia@xxxxxxxxxx.xxx>
Cc: 'Amsat' <amsat-bb@xxxxx.xxx>
Message-ID: <01aa01cbfec3$c324fc90$496ef5b0$@xxx>
Content-Type: text/plain; charset="us-ascii"
What is your launch date and good luck?
nick
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Bob Bruninga
Sent: Tuesday, April 19, 2011 12:16 PM
To: 'John Heath'
Cc: 'Amsat'
Subject: [amsat-bb] Re: HF Satellite Experiment?
I'm hoping for 1 Watt and on all the time.
Bob, wbapr
From: John Heath [mailto:g7hia@xxxxxxxxxx.xxxx
Sent: Tuesday, April 19, 2011 1:14 PM
To: Bob Bruninga
Cc: Amsat
Subject: Re: [amsat-bb] HF Satellite Experiment?
Hi Bob,
Congratulations, sounds like an interesting experiment.
I will be listening for the transmissions.
Do you have estimated output power yet?
Will the cubesat TX in eclipse, less active ionoshere.
Will the beacon be on all the time, or intermittent.
73 John G7HIA
_____
From: Bob Bruninga <bruninga@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Sent: Tuesday, 19 April, 2011 14:22:52
Subject: [amsat-bb] HF Satellite Experiment?
Cubesat HF experiment:
We have revised our HF satellite experiment proposal to be a CW telemetry
beacon on 40, 20, 15 and 10 meter bands. The experiment will last only a
few days, since the deployed 1000m tether will have so much drag, we will
de-orbit in only a few days.
The idea is a keyed CW oscillator on 7.010 MHz with harmonics on 14.020,
21.030 and 28.040 MHz. These bands are all in the IARU Satelilte
allocation. We will filter all harmonics above 28 MHz.
The challenge will be how to feed a 1000m long wire from only a 4"x4"x7"
counterpoise (on all bands). transformer coupling?
The tether will be vertical and can act as a long wire antenna with a very
narrow cone angle pointed straight down. Antenna gain will be more than 10
dB on all bands. This moving donut gain pattern sweeping across the earth
should pose some interesting reception reports (If any of it gets through
the ionosphere).
Launch Opportunity no earlier than March 2012. Putting us closer and closer
to the Solar Max which would be the worst time for this experiment.
Other than a nice AMSAT experiment, if anyone can use this for valid
ionosphereic science, come join us.
Bob, WB4APR
_______________________________________________
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-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 2
Date: Tue, 19 Apr 2011 15:10:01 -0400
From: "KM9U" <arskm9u@xxxxx.xxx>
Subject: [amsat-bb] Re: RF Quiet my digital recorder
To: "Bill W1PA" <w1pa@xxxxxxx.xxx>, <AMSAT-BB@xxxxx.xxx>
Message-ID: <4EA0F3E83AA94B01B645D904375D8FFE@xxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
I have used an Olympus VN-5000 without any problems. However, the VN-5000
does not have a way to directly download to a computer. I now use a RCA
model VR5220 (I think I got it at Wally World). There are no RF issues. I
connect it directy to the speaker out jack on my radio. It timestamps the
files and has USB connection for saving .WAV files directly to a computer. I
love it!
Chuck, KM9U
----- Original Message -----
From: "Bill W1PA" <w1pa@xxxxxxx.xxx>
To: <AMSAT-BB@xxxxx.xxx>
Sent: Monday, April 18, 2011 10:03
Subject: [amsat-bb] Re: RF Quiet my digital recorder
> My Olympus DS-2 is pretty bad. In either play or record mode,
> I get wide processor noise on both 2m and 435 if it
> gets within a foot or so of the Arrow (in any direction). It sounds
> like power-line buzz noise. If I use a direct line-in
> (FT-530 ear to DS-2 Mic in), it's there all the time -- really bad.
>
> My goal is to "y" the stereo mic in, one side to the FT-530 audio
> coming from my headset, and one side to an external mic (so I can hear the
> difference in play-back between what I say, and what I can hear on the
> downlink).
>
> With the FT-530 in one hand, the Arrow in the other, pen and paper is not
> an
> option.
> I also want to download the recordings (.wma or .mp3) so an analog
> recorder,
> although "rf quiet", is not an option.
>
> I plan to try shielding the recorder.... encasing it in either metal mesh,
> or maybe
> an aluminum fly-lure box, and then wrapping the line on a toroid core.
>
> In the mean time, is anyone using and can recommend a portable
> digital voice recorder with a mic-in jack (preferably stereo) that
> is "rf quiet"?
>
> Bill W1PA
>
>
>
> _______________________________________________
> 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
------------------------------
Message: 3
Date: Tue, 19 Apr 2011 15:49:47 -0400 (EDT)
From: K5OE <k5oe@xxx.xxx>
Subject: [amsat-bb] Maritime Mobile Lessons Learned
To: amsat-bb@xxxxx.xxx
Message-ID: <8CDCCE2127AD172-2288-1D65B@xxxxxxxxxxxx.xxxxxx.xxx.xxx>
Content-Type: text/plain; charset="utf-8"
For hams that want to try working Maritime Mobile, the very first stop
should be N5AFV?s very informative how-to guide(s):
http://www.qsl.net/n5afv/cruise.html
This was my second attempt at this and I can add a few lessons learned to
the subject that may help future cruisers.
1. When a satellite has multiple frequencies available, and your radio has
all of them pre-programmed, be careful of relying on the alpha identifiers.
For example, on my FT-51R, 145.920 and 145.880 are both identified as
?AO-51.? I guess I don?t have to explain why this is a lesson learned.
2. Allen mentioned his attempt to stay away from the ship?s antennae. I
learned from experience on this trip that the intermod was far worse on the
bow than the stern, and non-existent from the stateroom balconies. If you
can get the captain to steer the vessel so that you can see the entire pass
from your stateroom, it is easy to hear the bird(s) and you don?t have to
brave gale-force winds at night.
3. Transcribe your QSOs right after the pass onto a log. I seemed to have
gone back to bed one morning and completely forgot to log one pass. I only
became aware of this when I got three QSL requests for the same pass! I
used an mp3 player and still had it, so the only loss was the embarrassment
of declining a QSL and then realizing I was wrong.
4. I only recorded my own voice (not a perfect system, but simple and easy).
Still, out of 235 contacts, I still have about a dozen calls I am not sure
of in my log (95% accuracy, or almost 2 sigma for you statisticians out
there). I actually had a few more garbled in the audio but was able to pick
them out of the K8YSE online recordings, but since his QTH is far north of
where I was, the recordings did not cover my entire pass (or all of the
passes). A better setup, for those inclined to do more work, would be to
also record the speaker output from the radio.
And, as a general recommendation to stations wishing to work a MM op, please
always use phonetics (no intent to incite another riot) as it is sometimes
very difficult to hear onboard, with extremely high wind noise, intermittent
IM, fading, etc.
The official stats by satellite were:
AO-51, 11 passes and 148 contacts
AO-27, 5 passes and 65 contacts
SO-50, 3 passes and 22 contacts
ARISSat-1, not heard.
Equipment used was an FT-51R with an Arrow from the stateroom balcony and a
Pryme AL-800 when on the deck (most of the passes, as the ship was
predominantly heading at 135 and 310 degrees and not conducive to "seeing" a
whole pass). Ancillary equipment was a portable GPS and an mp3 recorder.
Thanks again to Allen, the AO-51 crew, and to all the patient ops who gave
me their calls two and three times :-)
73,
Jerry, K5OE
------------------------------
Message: 4
Date: Tue, 19 Apr 2011 16:05:08 -0400
From: "Bob Bruninga" <bruninga@xxxx.xxx>
Subject: [amsat-bb] Re: HF Satellite Experiment?
To: "'Nick Pugh K5QXJ'" <quadpugh@xxxxxxxxx.xxx>, "'John Heath'"
<g7hia@xxxxxxxxxx.xxx>
Cc: 'Amsat' <amsat-bb@xxxxx.xxx>
Message-ID: <066701cbfecd$152554f0$3f6ffed0$@xxx>
Content-Type: text/plain; charset="us-ascii"
> What is your launch date and good luck?
Launch Opportunity no earlier than March 2012. Putting us closer and closer
to the Solar Max which would be the worst time for this experiment.
Bob, Wb4APR
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Bob Bruninga
Sent: Tuesday, April 19, 2011 12:16 PM
To: 'John Heath'
Cc: 'Amsat'
Subject: [amsat-bb] Re: HF Satellite Experiment?
I'm hoping for 1 Watt and on all the time.
Bob, wbapr
From: John Heath [mailto:g7hia@xxxxxxxxxx.xxxx
Sent: Tuesday, April 19, 2011 1:14 PM
To: Bob Bruninga
Cc: Amsat
Subject: Re: [amsat-bb] HF Satellite Experiment?
Hi Bob,
Congratulations, sounds like an interesting experiment.
I will be listening for the transmissions.
Do you have estimated output power yet?
Will the cubesat TX in eclipse, less active ionoshere.
Will the beacon be on all the time, or intermittent.
73 John G7HIA
_____
From: Bob Bruninga <bruninga@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Sent: Tuesday, 19 April, 2011 14:22:52
Subject: [amsat-bb] HF Satellite Experiment?
Cubesat HF experiment:
We have revised our HF satellite experiment proposal to be a CW telemetry
beacon on 40, 20, 15 and 10 meter bands. The experiment will last only a
few days, since the deployed 1000m tether will have so much drag, we will
de-orbit in only a few days.
The idea is a keyed CW oscillator on 7.010 MHz with harmonics on 14.020,
21.030 and 28.040 MHz. These bands are all in the IARU Satelilte
allocation. We will filter all harmonics above 28 MHz.
The challenge will be how to feed a 1000m long wire from only a 4"x4"x7"
counterpoise (on all bands). transformer coupling?
The tether will be vertical and can act as a long wire antenna with a very
narrow cone angle pointed straight down. Antenna gain will be more than 10
dB on all bands. This moving donut gain pattern sweeping across the earth
should pose some interesting reception reports (If any of it gets through
the ionosphere).
Launch Opportunity no earlier than March 2012. Putting us closer and closer
to the Solar Max which would be the worst time for this experiment.
Other than a nice AMSAT experiment, if anyone can use this for valid
ionosphereic science, come join us.
Bob, WB4APR
_______________________________________________
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-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 5
Date: Tue, 19 Apr 2011 16:22:31 -0400
From: "Bob Bruninga" <bruninga@xxxx.xxx>
Subject: [amsat-bb] Balloon across Atlantic 21 April?
To: "'Amsat'" <amsat-bb@xxxxx.xxx>, "'TAPR APRS Mailing List'"
<aprssig@xxxx.xxx>
Cc: 'Tom Triebwasser' <triebwasser@xxxxx.xxx>
Message-ID: <066e01cbfecf$82780460$87680d20$@xxx>
Content-Type: text/plain; charset="iso-8859-1"
KC2TUA announces: Balloon attempt across the Atlantic. 21 April 2011
Hams in the USA and worldwide are needed to listen on 7.1023 and 10.1466 MHz
and to send readings of the balloon's progress to PBH15.data@xxxxx.xxx. More
information about the program, including the latest projected flight path,
can be found at http://www.projectbluehorizon.com/
https://twitter.com/PBH5.
It also has an APRS GPS tracker on 144.39 with the callsign KC2ZJH and will
launch from Oswego, NY around midnight Thursday. Thanks in advance for your
help!
The HF downlink exact frequency will vary 10 Hz or so with temperature.
Accurate recording of frequency will be useful.
73,
-Tom Triebwasser
PBH Alumnus '09
KC2TUA
-----------------------------------------------------------------------
The Project Blue Horizon Increment 5 (PBH V) team has finalized a launch
window for the third and final flight of Increment 5; launch of PBH-15 is
tentatively planned for 4/21/11 ? 4/22/11. The team will be rolling out GO/
NO-GO communications to all parties to provide adequate time for interested
individuals to plan accordingly for observing the launch or tracking and
following the mission progress.
?
The PBH-15 mission will be the Increment 5 teams attempt at breaking the
current ARHAB distance (3,361.81 miles) and duration (49 hours, 45 minutes)
records. It will include integration of an altitude control mechanism for
reducing air vehicle weight during flight to sustain float and 30m HF
communications via an Enhanced Morse Decoder provided by Dylan Thorner of
Enhanced Solutions. PBH-15 will be lifted with a 54,000 cubic foot
Zero-pressure envelope and is projected to float for long durations between
85,000-110,000.
?
The current target for executing launch of PBH-15 is between 11:00PM ?
12:00AM on Thursday (4/21)/Friday (4/22), weather and approval permitting.
?
At conclusion of Thursday?s Flight Readiness Review (2PM - 3PM), the team
will provide updated GO/ NO-GO information.
?
During the PBH-15 mission, the Twitter feed will be updated in 30 minute
increments at: http://twitter.com/PBH5
?
--------------------------------------
?
For those interested in tracking the Mission Payload, the following band
plan and call signs will be used for PBH-15:
?
Function
Frequency
Required
HAM Level
?
Payload
Call Sign
Primary Voice / Mission Communication
147.500MHz
Technician
?
Mission Payload HF (40m)
N2XE
Secondary Voice / Mission Communication
? Owego Repeater (Duplex)
146.760MHz
Technician
?
Mission Payload HF (30m)
N2XE
?
?
?
?
Mission Payload APRS
KC2ZJH
APRS
144.390MHz
Technician
?
?
?
40m HF (Morse Code)
See attached
Technician
?
?
?
30m HF (Morse Code)
See attached
General
?
?
?
?
Users can input data received from the Mission Payload via the ?User Input?
tab at http://www.projectbluehorizon.com/.
?
Points received from the PBH-15 payload over HF can also be submitted to:
PBH15.data@xxxxx.xxx
?
Thanks,
?
Matthew T. Lewis?
------------------------------
Message: 6
Date: Tue, 19 Apr 2011 15:26:45 -0500
From: Joe <nss@xxx.xxx>
Subject: [amsat-bb] Re: HF Satellite Experiment?
To: amsat-bb@xxxxx.xxx
Message-ID: <4DADF005.9030804@xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Now, a question,
Is there a difference in which way the signal travels through the
ionosphere be it going ground up or space craft down, does it make any
difference?
And or how about incendense angles? the angle the signal hit the
ionosphere. if it's a grazing blow does it get reflected more vs a
straight on assault like straight up and down.
It can't be blocked all that much because I remember playing on that
russian bird all the time Mode "K"? 15/10 meters.
How about listening to Jupiter also?
Joe WB9SBD
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 4/19/2011 3:05 PM, Bob Bruninga wrote:
>> What is your launch date and good luck?
> Launch Opportunity no earlier than March 2012. Putting us closer and closer
> to the Solar Max which would be the worst time for this experiment.
>
> Bob, Wb4APR
>
> -----Original Message-----
> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
> Behalf Of Bob Bruninga
> Sent: Tuesday, April 19, 2011 12:16 PM
> To: 'John Heath'
> Cc: 'Amsat'
> Subject: [amsat-bb] Re: HF Satellite Experiment?
>
> I'm hoping for 1 Watt and on all the time.
>
> Bob, wbapr
>
>
>
>
>
> From: John Heath [mailto:g7hia@xxxxxxxxxx.xxxx
> Sent: Tuesday, April 19, 2011 1:14 PM
> To: Bob Bruninga
> Cc: Amsat
> Subject: Re: [amsat-bb] HF Satellite Experiment?
>
>
>
> Hi Bob,
>
>
>
> Congratulations, sounds like an interesting experiment.
>
> I will be listening for the transmissions.
>
> Do you have estimated output power yet?
>
> Will the cubesat TX in eclipse, less active ionoshere.
>
> Will the beacon be on all the time, or intermittent.
>
>
>
> 73 John G7HIA
>
>
>
> _____
>
> From: Bob Bruninga<bruninga@xxxx.xxx>
> To: amsat-bb@xxxxx.xxx
> Sent: Tuesday, 19 April, 2011 14:22:52
> Subject: [amsat-bb] HF Satellite Experiment?
>
> Cubesat HF experiment:
>
>
>
> We have revised our HF satellite experiment proposal to be a CW telemetry
> beacon on 40, 20, 15 and 10 meter bands. The experiment will last only a
> few days, since the deployed 1000m tether will have so much drag, we will
> de-orbit in only a few days.
>
>
>
> The idea is a keyed CW oscillator on 7.010 MHz with harmonics on 14.020,
> 21.030 and 28.040 MHz. These bands are all in the IARU Satelilte
> allocation. We will filter all harmonics above 28 MHz.
>
>
>
> The challenge will be how to feed a 1000m long wire from only a 4"x4"x7"
> counterpoise (on all bands). transformer coupling?
>
>
>
> The tether will be vertical and can act as a long wire antenna with a very
> narrow cone angle pointed straight down. Antenna gain will be more than 10
> dB on all bands. This moving donut gain pattern sweeping across the earth
> should pose some interesting reception reports (If any of it gets through
> the ionosphere).
>
>
>
> Launch Opportunity no earlier than March 2012. Putting us closer and closer
> to the Solar Max which would be the worst time for this experiment.
>
>
>
> Other than a nice AMSAT experiment, if anyone can use this for valid
> ionosphereic science, come join us.
>
>
>
> Bob, WB4APR
>
>
>
>
>
>
>
> _______________________________________________
> 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-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-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 7
Date: Tue, 19 Apr 2011 18:44:44 -0400
From: w4upd <updwrb@xxxxxxxxxxxxx.xxx>
Subject: [amsat-bb] SATPC, IC910 & Doppler
To: "Amsat-Bb@xxxxx. Org" <amsat-bb@xxxxx.xxx>
Message-ID: <4DAE105C.2090308@xxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I may missing something obvious, but when tuning the IC-910 on FM
satellites I noticed that under normal SQF files for AO-51, as an
example, both uplink and downlink do doppler adjustment. In the case of
FM or AO-51 in this case, I want the uplink to stay the same and only
the downlink to doppler adjust. I also find that if I select the mode of
downlink only, when the tracking and doppler starts the mode changes to
downlink & uplink and then blanks out so you can no longer change it.
I have found a way to prevent this but it means manually setting the
uplink frequency. If I edit DOPPLER.SQF to have downlink only and an
upplink of 0, it prevents the uplink from adjusting. However, I had to
manually set the uplink to the frequency I wanted. This works, but I
feel I'm missing something simple.
Also, I've gotten use to using the IC-910 for 2-mtr band A and 70cm band
B and only band A transmits. Unable to do this in SATPC. However, no big
deal as the "Satellite" mode all works well, except the doppler
adjustment of the uplink.
Anyone with an idea what I'm missing here? This is the first chance to
really use SATPC as I have been normally doing manual tracking and the
"AFC" on the downlink which works quite well on the IC-910.
Regards,
Reid, W4UPD
AMSAT: 17002
------------------------------
Message: 8
Date: Tue, 19 Apr 2011 15:59:04 -0700
From: Clint Bradford <clintbradford@xxx.xxx>
Subject: [amsat-bb] Re: First Contact
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <ED9AEF78-5802-4BE2-A40F-778A29A96461@xxx.xxx>
Content-Type: text/plain; CHARSET=US-ASCII
>> ... A big thanks to K6LCS (Clint) and his Web site for all the tips and
inspiration to give satellites a try ...
There's a downside to all this ... I am under investigation - AND quarantine
...
CENTERS FOR DISEASE CONTROL
For Immediate Release: April 19, 2011
Contact: U.S. Centers for Disease Control
(301) 555-1212
CDC Media Relations
(404) 555-3286
CDC and NIH Update - Southern California Amateur Radio Licensee Found to be
Source of Influenza Strain
Health care providers across North America have been instrumental in
determining the source of a new strain of influenza - "Inflenza-SAT."
It has been noted that Clint Bradford of Mira Loma, California, and amateur
radio licensee K6LCS, has been promoting the concept that accessing amateur
radio satellites does NOT require sophisticated equipment. His Web site
further promotes this concept, resulting in the proliferation of amateur
radio operators accessing the FM satellites.
>From Bradford's work-sat.com Web site:
"You do NOT need 100 Watts of transmit power, nor expensive Yagi antennas,
to successfully work the FM ham satellites" Bradford pronounces. "Most hams
already own the necessary equipment to successfully work the birds ... "
Bradford's guidelines outline steps to eliminate common preconceptions
regarding accessing the FM satellites. "It is all in this four-page
tutorial," Bradford declares on his home page.
Visitors to Bradford's Web site who follow his instructions have - usually
within a week's time - begin to suffer from Influenza-SAT, the symptoms of
which include:
-public declarations of unjustifiable glee at making initial radio contacts
with satellites
-displays of gratitude to complete strangers
-the desire to continue such radio contacts for the foreseeable future
-the desire to "spread the word" and pass on Bradford's Web site address to
complete strangers
As of this date, the Centers for Disease Control and Prevention and the
Healthcare Infection Control Practices Advisory Committee (HICPAC) have been
unable to advise of a cure or antidote to this condition.
"The publication of the description of these symptoms is a great
contribution to the continued improvement of quality patient care and is
illustrative of the power of collaboration across government agencies and
with academic institutions," said NIH Director Dr. Hiram R. Percy.
/end/
------------------------------
Message: 9
Date: Tue, 19 Apr 2011 17:34:47 -0600
From: James Duffey <jamesduffey@xxxxxxx.xxx>
Subject: [amsat-bb] Re: HF Satellite Experiment?
To: "Bob Bruninga" <bruninga@xxxx.xxx>
Cc: James Duffey <jamesduffey@xxxxxxx.xxx>, amsat-bb BB
<amsat-bb@xxxxx.xxx>
Message-ID: <21C68B9C-197C-4BEA-B763-CF14824B4F46@xxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Bob - Calculate the resistance of 1000M of whatever wire you are using at
the frequencies you are operating on. It will be low. The resistive
component of the impedance will dominate the reactive component, so a simple
transformer will do. I can do the calculation if you don't have access to
the HF resistance data. It would be a good task for a student though. - Duffey
On Apr 19, 2011, at 7:22 AM, Bob Bruninga wrote:
> Cubesat HF experiment:
>
>
>
> We have revised our HF satellite experiment proposal to be a CW telemetry
> beacon on 40, 20, 15 and 10 meter bands. The experiment will last only a
> few days, since the deployed 1000m tether will have so much drag, we will
> de-orbit in only a few days.
>
>
>
> The idea is a keyed CW oscillator on 7.010 MHz with harmonics on 14.020,
> 21.030 and 28.040 MHz. These bands are all in the IARU Satelilte
> allocation. We will filter all harmonics above 28 MHz.
>
>
>
> The challenge will be how to feed a 1000m long wire from only a 4"x4"x7"
> counterpoise (on all bands). transformer coupling?
>
>
>
> The tether will be vertical and can act as a long wire antenna with a very
> narrow cone angle pointed straight down. Antenna gain will be more than 10
> dB on all bands. This moving donut gain pattern sweeping across the earth
> should pose some interesting reception reports (If any of it gets through
> the ionosphere).
>
>
>
> Launch Opportunity no earlier than March 2012. Putting us closer and closer
> to the Solar Max which would be the worst time for this experiment.
>
>
>
> Other than a nice AMSAT experiment, if anyone can use this for valid
> ionosphereic science, come join us.
>
>
>
> Bob, WB4APR
>
>
>
>
>
>
>
> _______________________________________________
> 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
--
KK6MC
James Duffey
Cedar Crest NM
------------------------------
Message: 10
Date: Tue, 19 Apr 2011 16:48:29 -0700
From: "Tom Workman" <k0tw@xxx.xxx>
Subject: [amsat-bb] Revisiting LOTW satellite requirements
To: <amsat-bb@xxxxx.xxx>
Message-ID: <7C6CD1E6138B49A3AE22D770171A7E2B@xxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
I've decided to give Logbook of the World (LOTW) another try. I keep losing
my passwords and have to start over. Maybe I'll write them down this time
:-)
When I tried uploading a couple of my satellite QSOs as a test LOTW says
that the MODE field is invalid. I had entered "SAT". I know this has been
discussed in recent months here but I couldn't find that discusssion in
looking at the archives. Would someone put me on the right track as to what
fields are required for a satellite QSO to be considered valid by LOTW?
Thanks.
Tom - K?TW
------------------------------
Message: 11
Date: Tue, 19 Apr 2011 21:07:17 -0400
From: <saguaroastro@xxx.xxx>
Subject: [amsat-bb] Re: Revisiting LOTW satellite requirements
To: Tom Workman <k0tw@xxx.xxx>, amsat-bb@xxxxx.xxx
Message-ID: <20110419210717.E4BRX.195587.imail@xxxxxxxxxxx>
Content-Type: text/plain; charset=utf-8
Tom, just sent you off list a pdf from the ARRL website with the details of
recording SAT QSO's in LOTW. If you use HRD logging program, just make sure
you select Satellite ate the propagation method in the entry. If not edit
the file as indicated in the attachment I sent you.
Also you can recover your password from ARRL from the support link. It
emails them and they send you a new password you can change the next day.
73 de Rick
K7TEJ
---- Tom Workman <k0tw@xxx.xxx> wrote:
> I've decided to give Logbook of the World (LOTW) another try. I keep losing
> my passwords and have to start over. Maybe I'll write them down this time
> :-)
>
> When I tried uploading a couple of my satellite QSOs as a test LOTW says
> that the MODE field is invalid. I had entered "SAT". I know this has been
> discussed in recent months here but I couldn't find that discusssion in
> looking at the archives. Would someone put me on the right track as to what
> fields are required for a satellite QSO to be considered valid by LOTW?
>
> Thanks.
> Tom - K?TW
>
>
> _______________________________________________
> 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
------------------------------
Message: 12
Date: Tue, 19 Apr 2011 21:06:54 -0400
From: <saguaroastro@xxx.xxx>
Subject: [amsat-bb] Re: Revisiting LOTW satellite requirements
To: Tom Workman <k0tw@xxx.xxx>, amsat-bb@xxxxx.xxx
Message-ID: <20110419210654.38IAC.195582.imail@xxxxxxxxxxx>
Content-Type: text/plain; charset=utf-8
Tom, just sent you off list a pdf from the ARRL website with the details of
recording SAT QSO's in LOTW. If you use HRD logging program, just make sure
you select Satellite ate the propagation method in the entry. If not edit
the file as indicated in the attachment I sent you.
Also you can recover your password from ARRL from the support link. It
emails them and they send you a new password you can change the next day.
73 de Rick
K7TEJ
---- Tom Workman <k0tw@xxx.xxx> wrote:
> I've decided to give Logbook of the World (LOTW) another try. I keep losing
> my passwords and have to start over. Maybe I'll write them down this time
> :-)
>
> When I tried uploading a couple of my satellite QSOs as a test LOTW says
> that the MODE field is invalid. I had entered "SAT". I know this has been
> discussed in recent months here but I couldn't find that discusssion in
> looking at the archives. Would someone put me on the right track as to what
> fields are required for a satellite QSO to be considered valid by LOTW?
>
> Thanks.
> Tom - K?TW
>
>
> _______________________________________________
> 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
------------------------------
Message: 13
Date: Tue, 19 Apr 2011 21:07:17 -0400
From: <saguaroastro@xxx.xxx>
Subject: [amsat-bb] Re: Revisiting LOTW satellite requirements
To: Tom Workman <k0tw@xxx.xxx>, amsat-bb@xxxxx.xxx
Message-ID: <20110419210717.TPWR0.195588.imail@xxxxxxxxxxx>
Content-Type: text/plain; charset=utf-8
Tom, just sent you off list a pdf from the ARRL website with the details of
recording SAT QSO's in LOTW. If you use HRD logging program, just make sure
you select Satellite ate the propagation method in the entry. If not edit
the file as indicated in the attachment I sent you.
Also you can recover your password from ARRL from the support link. It
emails them and they send you a new password you can change the next day.
73 de Rick
K7TEJ
---- Tom Workman <k0tw@xxx.xxx> wrote:
> I've decided to give Logbook of the World (LOTW) another try. I keep losing
> my passwords and have to start over. Maybe I'll write them down this time
> :-)
>
> When I tried uploading a couple of my satellite QSOs as a test LOTW says
> that the MODE field is invalid. I had entered "SAT". I know this has been
> discussed in recent months here but I couldn't find that discusssion in
> looking at the archives. Would someone put me on the right track as to what
> fields are required for a satellite QSO to be considered valid by LOTW?
>
> Thanks.
> Tom - K?TW
>
>
> _______________________________________________
> 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
------------------------------
Message: 14
Date: Tue, 19 Apr 2011 19:48:22 -0700
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] Re: Revisiting LOTW satellite requirements
To: amsat-bb@xxxxx.xxx
Message-ID: <BANLkTin6jmebyUHJzrm=ZKkxwCUzReqAYw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi Tom!
> When I tried uploading a couple of my satellite QSOs as a test LOTW says
> that the MODE field is invalid. I had entered "SAT". I know this has been
> discussed in recent months here but I couldn't find that discusssion in
> looking at the archives. Would someone put me on the right track as to what
> fields are required for a satellite QSO to be considered valid by LOTW?
The MODE field refers to the transmission mode - FM, SSB, etc. The
fields related to a satellite QSO are PROP_MODE (this is always set
to "SAT") and SAT_NAME matches the names in the list at:
https://p1k.arrl.org/lotw/faq
I'm pretty sure Rick e-mailed you the PDF written by N5JB that shows
the 7 fields that must be present for a valid satellite QSO in LOTW,
including the two I mentioned above. Others can be added, but are
optional. The document is found at:
http://www.arrl.org/files/file/LoTW%20Instructions/N5JB.pdf
Hope to see some of our QSOs match up as QSLs in LOTW soon.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
_______________________________________________
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 6, Issue 228
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