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CX2SA > SATDIG 17.06.18 18:09l 1031 Lines 35378 Bytes #999 (0) @ WW
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Sent: 180617/1552Z @:CX2SA.SAL.URY.SOAM #:46163 [Salto] FBB7.00e $:AMSATBB13210
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: Another KR500 thread, maybe. (John)
2. Re: SATPC32 reinstall issue (Rick Tejera)
3. ANS-168 AMSAT News Service Weekly Bulletins (Lee McLamb)
4. DSLWP-B UHF Test Plan for Next Week (???)
5. Re: APRS FD method (k6vug@?????????.????
6. Upcoming ARISS contact with Tehnicka skola Zajecar, Zajecar,
Serbia (n4csitwo@?????????.????
7. FS: Angle Linear BT2N Bias Tees (Eric Rosenberg)
8. HRD Satellite Tracking Question (Dave Tipton, W5DMT)
9. Re: HRD Satellite Tracking Question (Frank)
----------------------------------------------------------------------
Message: 1
Date: Sun, 17 Jun 2018 01:17:51 +0100
From: "John" <john@?????.???.??>
To: "'Paul'" <paul@????.???.??>, <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Another KR500 thread, maybe.
Message-ID: <01e901d405d0$a18b62b0$e4a22810$@?????.???.??>
Content-Type: text/plain; charset="utf-8"
Paul,
If your controller doesn't have a DIN socket on the back, then your best bet
is to look at the ERC units - the ERC-M interface will talk to azimuth and
elevation simultaneously, either on one or two separate connections, and
they also sell "rotor cards" which you can install inside your controller,
effectively adding an interface to a controller which lacks one. The rotor
cards are basically boards with a bunch of relays addressable by the main
ERC-M unit.
You can find it all on www.easy-rotor-control.com and the best bit about the
ERC-M is that it will talk GS232B protocol to a PC, meaning any app that can
talk GS232B can address it (including all the popular satellite software).
There is also a dedicated rotor control app that ERC produce which is
capable of control and readout.
73,
John (XLX)
-----Original Message-----
From: Paul <paul@????.???.??>
Sent: 16 June 2018 19:48
To: John <john@?????.???.??>; amsat-bb@?????.???
Subject: Re: [amsat-bb] Another KR500 thread, maybe.
Just a quick update, I took the controller capacitor out of line and now the
limit switches behave as expected so that's good news. Having cleaned
everything I put it back together without grease for the time being with 20
of the best condition bearings in one end and am pleased to say everything
works perfectly using the old controller.
The new stainless bearings, M6 bolts for the casing and M8 bolts for the
bracket have been ordered so hopefully it won't be too long before my ?1
elevation rotator is brought into service. I've downloaded a few manuals now
so can match up what I have motor and controller wise.
Just being lazy for the moment and to save me searching is there a PC
interface available for the 5600 motor and old style Kenpro KR-400 (my
azimuth rotator), one that has a stand alone programme to operate them?
Thanks again for your help with this little project John.
73
Paul
G7PUV
On 16/06/2018 15:06, John wrote:
> Hi Paul,
>
> Yes, I'm 99% sure it's the elevation unit side of a late model
> KR5600B. I would not recommend running it with both capacitors inline,
> as the capacitors are effectively used as a timing device to ensure
> the motor spins in the correct direction. The capacitance delays the
> current hitting the second set of coils long enough to make the motor
> spin which allows it to drive the rest of the system. Sending current
> up both sides at once (due to your capacitor in the controller) will
> confuse things somewhat
>
> The motor auto-reversing is possibly a symptom of this extra capacitor in
the wrong place, though since I had weird wiring in my rotor unit which I
needed to pull out, I can't verify that from experience. Pull the capacitor
wires from your controller and see if you get the same behaviour or not!
>
> The disc brake is between the gear on the motor shaft, and the motor
housing, and is usually a cork disc. It adds enough friction to 'brake' the
motor, but when you energise the coils, the motor shaft physically lifts
away from the brake disc. You'll see, if you give the shaft a gentle pull,
that it almost lifts away from the motor unit - this is the brake release
mechanism.
>
> The main thing to remember is that you're working with AC motors here,
which run at around 26-28V.
>
> As an aside, if you don't have the manual for it, it's worth finding one -
I probably have a digital copy somewhere I can send you if needed. The
manual has a full and complete wiring diagram for both sides of the system
in them.
>
> 73,
>
> John (XLX)
>
> -----Original Message-----
> From: Paul <paul@????.???.??>
> Sent: 16 June 2018 09:41
> To: John <john@?????.???.??>; amsat-bb@?????.???
> Subject: Re: [amsat-bb] Another KR500 thread, maybe.
>
> Hi John,
>
> Thanks for your lengthy reply, I really appreciate it. Just to clarify one
thing you think this is a late model Kenpro due to it having the switches
and cap inside the casing attached above the positioning pot?
>
> I tested the motor last night using the KR400 controller, wiring seems
standard on pins 4,5 and 6 so I gave it a couple of briefs bursts to see if
it turned, it didn't! Well not initially then all appeared OK, on closer
inspection I discovered that the motor itself has some form of brake or stop
inside. While it's free to be turned manually in the same direction it was
last powered it will not turn in the opposite direction until power is
applied to move it that way. At first I thought it was jammed or broken but
it appears to be normal operation as the rotation is quite free with no
nasty feeling rough spots.
>
> The limit switches surprised me as well. I come from a satellite
background where I'm used to a limit switch killing power to an actuator, if
I press one of these it switches the motor into the opposite direction, is
that right?
>
> Now I know the motor is free to move I've purchased new bearings and will
source some suitable grease, primer and paint. The case has become quite
pitted inside where the water was laying but it's now all clean after wire
brushing and rubbing down. Externally it's in very good condition even where
I hit each point with the gas gun to get the bolts out. It goes without
saying they'll all be replaced with stainless socket head bolts.
>
> 73
> Paul
> G7PUV
>
>
> On 15/06/2018 09:13, John wrote:
>> Paul,
>>
>> It's a Model B KR500 I would say. The very last version of the KR5600
>> (the KR5600B set) had limit switches and capacitors inside the motors.
>>
>> As for how to proceed, you have two options. Firstly pull the limit
>> switch mechanism out and rely on the controller's start capacitor, or
>> secondly pull the start capacitor from the controller and use the
>> rotor limit switches and capacitor. As far as I can tell from the
>> in-depth dismantling I've done of a couple of these, either should
>> work, but having both would effectively render the limit switches
>> redundant, and probably play some kind of havoc further down the line.
>>
>> What I'd recommend personally is that you start by checking the
>> wiring config on the back of the screw block - this will have an
>> effect on what you do later. There was some weird wiring in one of
>> the rotor units I bought, and it ended up with pins being shorted
>> together inside the connector block and made everything weird. I made
>> the decision with that one to return it to 'A' spec as I couldn't be
>> sure what else had been done. If yours is similar that's the approach I
would take.
>>
>> If, however, the inside wiring on the motor unit is sensible and
>> sane, and matches spec, then I'd probably go for keeping the limit
>> switches installed, as otherwise your only limiting is a mechanical
>> stop, and if you hit that and don't realise, but keep sending current
>> up the cable, you'll inevitably burn out your motor windings after a while.
>> Not such a fun job to fix (dismantling the motor housing is at least
>> an hour's work on its own), although easy enough to do with patience.
>>
>> Feel free to ping me off list if you want to chat about it further!
>>
>> 73, and a firm left handshake,
>> John (2E0XLX)
>>
>> -----Original Message-----
>> From: AMSAT-BB <amsat-bb-bounces@?????.???> On Behalf Of Paul
>> Sent: 14 June 2018 18:18
>> To: amsat-bb@?????.???
>> Subject: [amsat-bb] Another KR500 thread, maybe.
>>
>> Hi all
>> I recently won a Kenpro KR500 rotor on Ebay for the princely sum of a quid.
>> The alleged history was it was purchased, had antennas attached but
>> was never wired or used and this I can believe because the connector
>> block looks untouched. It was however left on its side in the garden
>> so looks pristine but has suffered water ingress. I started to strip
>> it down today and of course the eight M6 Phillips heads put up quite
>> a fight but I attacked it with fire and it is now apart.
>>
>> Having opened it up I'm now slightly confused as to what model rotor
>> I actually have. It has the eight screw terminal block, the casing is
>> stamped Kenpro but internally it has the limit switches and a capacitor.
>>
>> The controller I intend using is an old Kenpro KR400 model and I
>> assume has the 70uF cap across the switches. Do I leave this in place
>> to use it with my rotor or should I remove it, or remove the cap in the
rotor?
>>
>> Paul G7PUV
>> Sussex Coast. JO00
>> _______________________________________________
>> Sent via AMSAT-BB@?????.???. 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
>
>
--
Paul
Sussex Coast. JO00
Icom IC-R8500, Airspy & RTL 820 SDR.
HS Publications D100 TV-DX receiver.
Sony XDR F1HD and XDR-GTK interface.
Sony 920, RDS Spy, CCW Multicoupler.
W4KMA 24-100MHz custom Log Periodic.
Wellbrook ALA1530AL1 active HF loop.
Triax MTH-13 BIII, Korner 15ele BII.
1.8M Precision dish, C-Band 66E-58W.
1.2M Gibertini dish, KuBand 70E-63W.
2.4M FortecStar dish C-Band 49E-58W.
http://www.ukdx.org.uk
www.youtube.com/Aceblaggard
------------------------------
Message: 2
Date: Sat, 16 Jun 2018 17:23:27 -0700
From: "Rick Tejera" <SaguaroAstro@???.???>
To: <k6vug@?????????.???>, <amsat-bb@?????.???>
Subject: Re: [amsat-bb] SATPC32 reinstall issue
Message-ID: <002e01d405d1$6a4b23c0$3ee16b40$@???.???>
Content-Type: text/plain; charset="utf-8"
Umesh and everyone else who offered suggestions, All is well, it looks like
it was a corrupted file.
I reinstalled and then copied my know good files from my desktop into the
laptop files and everything works. YEAH!
Thanks again, hope to work you on field day.
Rick Tejera (K7TEJ)
Saguaro Astronomy Club
www.saguaroastro.org
Thunderbird Amateur Radio Club
www.W7TBC.org
-----Original Message-----
From: AMSAT-BB <amsat-bb-bounces@?????.???> On Behalf Of k6vug@?????????.???
Sent: Saturday, June 16, 2018 3:14 PM
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] SATPC32 reinstall issue
Hi Rick,
Been there done that, so may I suggest a couple of things to reduce your
work and speed things up...
So, do as Alan has said, then sort the SatPC32_DataBackup folder by Date
Descending. You should see only a few files/folders would have recent
timestamps. Only focus those files/folders, this will save you lot of time
and frustration. Also before copying over the newer files (one buy one),
rename the original files as .ORIG, or .SAVE, so you can bounce back quickly
from any problematic file.
Just a thought, hope it helps.
73!UmeshK6VUG
------------------------------
Message: 7
Date: Fri, 15 Jun 2018 07:04:39 -0500
From: "Alan" <wa4sca@?????.???>
To: "'Richard Tejera'" <Saguaroastro@???.???>, "'AMSAT'"
<amsat-bb@?????.???>
Subject: Re: [amsat-bb] SATPC32 reinstall issue
Message-ID: <000a01d404a1$0a12d880$1e388980$@?????.???>
Content-Type: text/plain; charset="us-ascii"
Try running the new version without reinstalling your old data. If that
works, you can incrementally restore the old data manually and find the
problem.
73,
Alan
WA4SCA
<-----Original Message-----
<From: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? On Behalf Of <Richard
Tejera
<Sent: Thursday, June 14, 2018 21:19 PM
<To: 'AMSAT' <amsat-bb@?????.???>
<Subject: Re: [amsat-bb] SATPC32 reinstall issue < <Anyone??? Still can't
get Satpc32 to run properly < <Rick Tejera K7TEJ <Saguaro Astronomy Club
<www.SaguaroAstro.org <Thunderbird Amateur Radio Club <www.w7tbc.org < <On
June 11, 2018, at 18:50, Rick Tejera <SaguaroAstro@???.???> wrote:
<
<All,
<
<I recently (today) had to reinstall SATPC32. I was getting the following
<error on start up: Ungultiges argument zum Codeieren des Datms. If I
clicked <OK the program would open, but with a blank window. Move on if I
try to <open <the Satellite menu, the following error popped up: .
<
<So Anyway, I save my data, uninstalled, and reloaded (Upgrading while I was
<at it), restored my data. Same thing is happening.
<
<Any Ideas? I'd like to get things running by Field day.
<
<TIA
<
<Rick Tejera (K7TEJ)
<Saguaro Astronomy Club
<www.saguaroastro.org <http://www.saguaroastro.org> <Thunderbird Amateur
Radio Club <www.W7TBC.org <http://www.W7TBC.org> <
*****************************************
_______________________________________________
Sent via AMSAT-BB@?????.???. 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: Sat, 16 Jun 2018 21:21:26 -0400
From: Lee McLamb <kt4tz@???.??.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] ANS-168 AMSAT News Service Weekly Bulletins
Message-ID: <300cded2-a32c-099b-b4dc-25d74cbd29d2@???.??.???>
Content-Type: text/plain; charset=utf-8; format=flowed
AMSAT NEWS SERVICE
ANS-168
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:
* AMSAT Field Day on the Satellites
* CAMSAT Details on Three Satellites and an HF Transponder
* 3A Monaco Activation on FM Satellites in July
* ARISS Ham Video Transmitter Aboard ISS Defective
* Call for Volunteers, ANS Seeks Rotating Editors
SB SAT @ AMSAT $ANS-168.01
ANS-168 AMSAT News Service Weekly Bulletins
AMSAT News Service Bulletin 168.01
?From AMSAT HQ KENSINGTON, MD.
DATE June 17, 2018
To All RADIO AMATEURS
BID: $ANS-168.01
AMSAT Field Day on the Satellites
It?s that time of year again; summer and Field Day! Each year the
American Radio Relay League (ARRL) sponsors Field Day as a ?picnic,
a campout, practice for emergencies, an informal contest and, most
of all, FUN!?
The event takes place during a 23-hour period on the fourth weekend
of June. For 2018 the event takes place during a 27-hour period from
1800 UTC on Saturday, June 23, 2018 through 2100 UTC on Sunday,
June 24, 2018.
Those who set up prior to 1800 UTC on June 23 can operate only 24
hours. The Radio Amateur Satellite Corporation (AMSAT) promotes
its own version of Field Day for operation via the amateur sat-
ellites, held concurrently with the ARRL event.
This year should be easier than many years since we have more than
10 transponders and repeaters available. Users should check the
AMSAT status page at http://www.amsat.org/status/ and the pages
at http://www.amsat.org/?page_id=177 for what is available in
the weeks leading up to field day.
To reduce the amount of time to research each satellite, see the
current FM satellite table at http://www.amsat.org/?page_id=5012
and the current linear satellite table at
http://www.amsat.org/?page_id=5033
If you are considering ONLY the FM voice satellites, there are
SO-50, AO-85, AO-91, and AO-92. It might be easier this year to
make that one FM contact for the ARRL bonus points with so many
FM birds. The congestion on FM LEO satellites is always so intense
that we must continue to limit their use to one-QSO-per-FM-satellite.
This includes the International Space Station. You will be allowed
one QSO if the ISS is operating Voice.
AO-92 may be in L/v for the first part of the event, depending on
command station availability. Keep an eye on @????? on Twitter for
expected L/v mode change times.
The full set of rules are posted at:
https://www.amsat.org/field-day/
[ANS thanks AMSAT Director Contests and Awards, Bruce Paige, KK5DO,
? for the above information]
---------------------------------------------------------------------
CAMSAT Details on Three Satellites and an HF Transponder
CAMSAT, China?s Amateur Radio Satellite organization, has offered
additional details about the three Amateur Radio satellites it
plans to launch later this year. Two of the satellites, designated
CAS-5A and CAS-6, will carry transponders, and one of them will
offer HF capability. CAMSAT?s Alan Kung, BA1DU, told ARRL that
the 6U CAS-5A will carry two HF transponders and two V/UHF trans-
ponders. The plentiful equipment package includes an H/T (21/29 MHz)
mode linear transponder, an H/U (21/435 MHz) mode linear transponder,
?an HF CW telemetry beacon, a V/U linear transponder, a V/U FM trans-
?ponder, a UHF CW telemetry beacon, and UHF AX.25 4.8k/9.6k baud GMSK
?telemetry.
+ The H/T mode linear transponder will have a 30 kHz wide uplink centered
? on 21.400 MHz, and a downlink centered on 29.490 MHz. RF output is
0.5 W.
+ An HF CW telemetry beacon will transmit on 29.465 MHz with 0.1 W.
+ The H/U mode linear transponder will have a 15 kHz wide uplink centered
? on 21.435 MHz, and a downlink centered on 435.505 MHz. The RF output is
? 0.5 W.
+ The V/U mode linear transponder will have a 30 kHz wide uplink at
? 145.820 MHz, and a downlink at 435.540 MHz. The RF output is 0.5 W.
+ The V/U mode FM transponder will uplink at 145.925 MHz, and downlink
? at 435.600 MHz. The transponder passband is 15 kHz, and the RF output
? is 0.5 W.
+ The UHF CW telemetry beacon will transmit on 435.570 MHz, with an RF
? output of 0.1 W.
+ UHF AX.25 4.8k/9.6k baud GMSK telemetry will transmit on 435.650 MHz
? at 0.5 W.
Kung told ARRL that the HF, VHF, and UHF antennas are quarter-wave
monopoles.
A satellite within a satellite, the tiny CAS-5B, weighing 0.5 kilogram,
will be deployed from CAS-5A in orbit. It will carry a UHF CW beacon on
an Amateur Radio frequency. Both CAS-5A and CAS-5B will be placed into
539 ? 533 kilometer, 97.5? orbits. They will launch from the Jiuquan
Satellite Launch Center in late September.
The 50-kilogram CAS-6 microsat will include a VHF CW telemetry beacon,
a U/V mode 20 kHz linear Amateur Radio transponder, and AX.25 4.8k baud
GMSK telemetry. It will also carry an atmospheric wind detector and
other systems that will operate on non-amateur frequencies.
A launch at sea on an as-yet undetermined date is planned for CAS-6
from the China Academy of Launch Vehicle Technology. The microsat will
be placed into a 579 ? 579 kilometer, 45? orbit.
[ANS thanks ARRL for the above information]
---------------------------------------------------------------------
3A Monaco Activation on FM Satellites in July
F4DXV plans FM satellite operation from 3A Monaco (JN33) on
Monday 02 July ~08:30z to 13z only during a quick break from
his trip to Italy. Jerome says, "Due to a bad horizon (mountains,
buildings), I could be only QRV for EU on high FM orbits."
[ANS thanks Daily DX for the above information]
---------------------------------------------------------------------
ARISS Ham Video Transmitter Aboard ISS Defective
Gaston Bertels, ON4WF has provided an update regarding the condition
of the ARISS HamTV system aboard the ISS.
In mid-April, the Ham Video transmitter on board the Columbus module
of the ISS stopped working. Extensive testing was performed by the
crew on June 1, 2018 which comprised connecting the transmitter to
the second ARISS L/S-band patch antenna on the nadir of Columbus.
The test was negative. Ground stations did not receive any signal
from Ham Video.
Since on-board repair is impossible ARISS is planning to return the
transmitter to Earth. Bertels wrote, "We hope this plan will be accepted
by the space agencies and the cost of operations funded by sponsors.
Schools and crew members performing educational ARISS school contacts are
delighted to use Ham Video. We will do the best we can to restart this
service as soon as possible. We will keep you informed on progress."
Additional information about the HamTV project can be found on-line at:
https://www.amsat-on.be/
[ANS thanks Gaston Bertels, ON4WF and ARISS HamTV for the above
information]
---------------------------------------------------------------------
Call for Volunteers, ANS Seeks Rotating Editors
The AMSAT News Service (ANS) is seeking volunteers to serve as
rotating editors for its weekly newsletter.
Editors work on a rotating schedule, each taking a different turn
editing a specific week's newsletter as scheduled by the ANS Editor
in Chief. Editors support each other by seeking and reporting to the
Editor of the week, information and resources of interest to the
AMSAT community. The number of newsletters assigned will be dependent
upon the number of available editors at any given time. The average
editor can expect to spend, on average, 4-5 hours for each newsletter,
dependent on available material. Prospective editors are required to
be AMSAT members in good standing and have a genuine interest in
satellite operation and an understanding of AMSAT's mission. Former
editing experience is a plus but not required.
If interested, please submit an inquiry, including your contact
information to ans-editor@?????.???.
[ANS thanks the ANS editors 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, KT4TZ
kt4tz at amsat dot org
------------------------------
Message: 4
Date: Sun, 17 Jun 2018 09:49:53 +0800 (CST)
From: ??? <wmc_jx@???.???>
To: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: [amsat-bb] DSLWP-B UHF Test Plan for Next Week
Message-ID: <4ea1d43a.12c9.1640b6f3011.Coremail.wmc_jx@???.???>
Content-Type: text/plain; charset=GBK
Hi OMs,
The following tests of DSLWP-B UHF are planned:
19 Jun 08:25 UTC to 19 Jun 10:25 UTC
22 Jun 21:00 UTC to 22 Jun 23:00 UTC
23 Jun 11:00 UTC to 23 Jun 13:00 UTC
23 Jun 22:00 UTC to 24 Jun 00:00 UTC
24 Jun 12:00 UTC to 24 Jun 14:00 UTC
VY TNX & 73!
Wei
--
WEI Mingchuan
Research Center of Satellite Technology
Harbin Institute of Technology
mobile: +86-189-4501-5242
e-mail: wmc_jx@???.???? bg2bhc@?????.???
------------------------------
Message: 5
Date: Sun, 17 Jun 2018 01:51:30 +0000 (UTC)
From: "k6vug@?????????.???? <k6vug@?????????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] APRS FD method
Message-ID: <592178937.1509740.1529200290366@????.?????.???>
Content-Type: text/plain; charset=UTF-8
Hi,
I can't believe I'm jumping on a discussion by THE experts - Bob, Patrick
and others.
I must confess that I have sometimes used MHEARD to ACK several callsigns
all at once, with very limited success. Since this was an impromptu
approach, the other stations had no idea that I was trying to save air
time.? ( sorry the idea using a beacon as a CQ/ACK never occurred but is
quite interesting )
Secondly, I have used UISS with ACK enabled only because I had a non-optimal
TX antenna and wanted a "physical layer ACK", to ensure my packets were
being heard at the bird.? The good thing is that once I got this, I was
essentially off the air waiting for a response to my CQ or QSO ACK.?? I did
however set the path to satellite callsign only.?
Thirdly, I'll be using a portable setup with laptop et al - SatPC32,
SDRsharp (as RX), IC7000 (as TX), and a logging program.?
Lastly, this is my AHHA moment - now I know how I get QSO ACKs from Patrick
so fast, while I have to struggle with UISS screen to send my QSO ACK.
Most enlightening discussion !?
73!?
Umesh, K6VUG
------------------------------
Message: 9
Date: Sun, 17 Jun 2018 00:05:46 +0000 (UTC)
From: Ryan Noguchi <ai6do@?????.???>
To: AMSAT <amsat-bb@?????.???>
Subject: Re: [amsat-bb] APRS FD method
Message-ID: <2021625973.717858.1529193946171@????.?????.???>
Content-Type: text/plain; charset=UTF-8
>I am not sure your approach would meet the definition of a
>complete QSO. Station A makes a general CQ call, and station>B would simply
list your call as a QSL in the status text.
>Then how does station A acknowledge station B's QSL - adding
>B's call sign to the status text from A?
Yes, that's correct. The CONOPS that Bob WB4APR has outlined is sufficient
to qualify as a QSO. Both parties have sent their call and exchange,
received same from the other party, and have mutually acknowledged receipt.
Both A and B are calling CQ in each beacon they transmit. They simply append
the calls of the stations they are "answering" at the same time that they
call CQ themselves.?
The elegance of the concept is that all communications are beacons--with
everyone calling CQ and answering other CQers at the same time--rather than
point-to-point messages. It's a very efficient use of the limited
resource.?I like the idea in principle.
>Add in the time of having to edit the status text on the?>APRS-ready
radios, and it gets messy fast.
This is my second biggest concern with the concept, especially for those of
us who will not be at a computer terminal. I tend to agree that this may be
cumbersome to implement on just an HT, but I'll try it out to see how it
compares.?
What I think is a more fatal flaw is that this just isn't the way we do
things the other 363 days of the year. It isn't just a matter of "saying
something different" on Field Day. This is a fundamentally different way to
make QSOs than we do on packet satellites every other day but Field Day,
which is not a recipe for success. It's a classic game theory problem. If
I'm the only one following this protocol, I won't be making any QSOs.?
Has anyone in recent history successfully made an APRS Field Day QSO in the
manner that Bob describes?
73, Ryan AI6DO
------------------------------
------------------------------
Message: 6
Date: Sat, 16 Jun 2018 23:01:15 -0400
From: <n4csitwo@?????????.???>
To: <amsat-bb@?????.???>, <ariss-press@?????.???>
Subject: [amsat-bb] Upcoming ARISS contact with Tehnicka skola
Zajecar, Zajecar, Serbia
Message-ID: <FC93E5F5AA5B4FD1AEA88BEF5401C65A@???>
Content-Type: text/plain; charset="iso-8859-1"
An International Space Station school contact has been planned with
participants at Tehnicka skola Zajecar, Zajecar, Serbia on 19 June. The
event is scheduled to begin at approximately 14:20 UTC. The duration of the
contact is approximately 9 minutes and 30 seconds. The contact will be
direct between YU1ACR and OR4ISS. The contact should be audible over Serbia
and adjacent areas. Interested parties are invited to listen in on the
145.80 MHz downlink. The contact is expected to be conducted in English.
Technical school from Zaje?ar is a secondary vocational school in Eastern
Serbia. The school includes educational profiles in the fields of electrical
engineering, transport, mechanical engineering and information technology.
For years, the school has been involved in various reform projects secondary
vocational education, which resulted in the introduction of new experimental
educational profiles mechatronics and information technologies.
An important segment in the school is non-formal education and work in the
sections. In the field of robotics, our students record excellent results at
national competitions. In 2017, the school launched a state-level "ARDUINO
KUP" competition where students displayed their skills in the field of
microcontrollers. The competition was organized in 2018, and we hope that
the competition will soon take on an international character.
Participants will ask as many of the following questions as time allows:
1. Do you play any sport on the ISS?
2. How much do you sleep?
3. How many days you can spend on the ISS in a row?
4. How do you feel when you return from ISS to the Earth?
5. Does everyone sleep at the same time?
6. Do you eat only prepared food or you can cook something?
7. How often are you in contact with your family on Earth?
8. What was your most interesting experience on ISS?
9. Can you have any allergic reactions on ISS?
10. How to go to the toilet on ISS?
11. How many work hours do you have a day?
12. Did you ever get sick during your stay at the ISS?
13. Are you sweating during your stay at the ISS?
14. What fun activities do you do in space?
15. Do you wear ordinary or special clothes?
16. What is the experience when during the spacewalk?
17. What do you miss the most during your stay at the ISS?
18. Does the ISS make noise?
PLEASE CHECK THE FOLLOWING FOR MORE INFORMATION ON ARISS UPDATES:
Visit ARISS on Facebook. We can be found at Amateur Radio on the
International Space Station (ARISS).
To receive our Twitter updates, follow @????????????
Next planned event(s):
TBD
About ARISS:
Amateur Radio on the International Space Station (ARISS) is a cooperative
venture of international amateur radio societies and the space agencies that
support the International Space Station (ISS). In the United States,
sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American
Radio Relay League (ARRL), the Center for the Advancement of Science in
Space (CASIS) and National Aeronautics and Space Administration (NASA).
The primary goal of ARISS is to promote exploration of science, technology,
engineering, and mathematics (STEM) topics by organizing scheduled contacts
via amateur radio between crew members aboard the ISS and students in
classrooms or informal education venues. With the help of experienced
amateur radio volunteers, ISS crews speak directly with large audiences in a
variety of public forums. Before and during these radio contacts, students,
teachers, parents, and communities learn about space, space technologies,
and amateur radio. For more informa
tion, see www.ariss.org, www.amsat.org, and www.arrl.org.
Thank you & 73,
David - AA4KN
---
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------------------------------
Message: 7
Date: Sun, 17 Jun 2018 02:04:39 -0400
From: "Eric Rosenberg" <ericrosenberg.dc@?????.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] FS: Angle Linear BT2N Bias Tees
Message-ID: <006d01d40601$143e05d0$3cba1170$@?????.???>
Content-Type: text/plain; charset="us-ascii"
Never used commercial grade high performance bias tees.
$75.00 plus shipping from 20015.
PayPal accepted
73,
Eric W3DQ
Washington, DC
------------------------------
Message: 8
Date: Sun, 17 Jun 2018 07:42:53 -0500
From: "Dave Tipton, W5DMT" <dave@?????.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] HRD Satellite Tracking Question
Message-ID: <024c01d40638$b62c2a70$22847f50$@?????.???>
Content-Type: text/plain; charset="us-ascii"
I was trying to setup HRD last night, and the strangest thing. When I go
into options, to put in my grid square, it is grayed out. It shows me in
the Atlantic Ocean, off the coast of West Africa.
To make it even stranger, it says (grayed out again) that I'm in EM65.
Loaded it on the laptop we're planning to use for field day next weekend,
and it was the same.
What am I missing here? I did set up myself in the observers section, but
that didn't seem to change anything either.
Thanks,
Dave
Dave Tipton, W5DMT
(615) 689-0685
<mailto:dave@?????.???> dave@?????.???
------------------------------
Message: 9
Date: Sun, 17 Jun 2018 08:47:36 -0700
From: Frank <k6fw1@???????.???>
To: amsat-bb@?????.???? dave@?????.???
Subject: Re: [amsat-bb] HRD Satellite Tracking Question
Message-ID: <795333e0-9f4e-2916-7ff6-c04275ea27f9@???????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
Dave,
You will need to set your grid in either the HRD Logbook or DM780
terminal programs.? Your grid is set under the "My Station" section.? Go
to "Tools" pull down menu bar in DM780 select "My Station" or in Logbook
go to "Tools" menu bar them "Configure" and then "My Station"
73,
Frank
K6FW
On 6/17/18 5:42 AM, Dave Tipton, W5DMT wrote:
> I was trying to setup HRD last night, and the strangest thing. When I go
> into options, to put in my grid square, it is grayed out. It shows me in
> the Atlantic Ocean, off the coast of West Africa.
>
>
>
> To make it even stranger, it says (grayed out again) that I'm in EM65.
>
>
>
> Loaded it on the laptop we're planning to use for field day next weekend,
> and it was the same.
>
>
>
> What am I missing here? I did set up myself in the observers section, but
> that didn't seem to change anything either.
>
>
>
> Thanks,
> Dave
>
>
>
> Dave Tipton, W5DMT
>
>
>
> (615) 689-0685
>
> <mailto:dave@?????.???> dave@?????.???
>
>
>
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@?????.???.
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 13, Issue 210
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