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CX2SA > SATDIG 06.10.20 04:11l 1292 Lines 43196 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Upcoming ARISS Contact Schedule as of 2020-10-05 19:00 UTC
(aj9n@???.????
2. Re: G5500/G5500DC/G5400 Rotor Problems (Gary)
3. Re: Yaesu G-5500 meters and readings to LVB tracker not
working (John Brier)
4. Searching amsat-bb for G5500/G5500DC/G5400 Rotor Problems
(JoAnne K9JKM)
5. Re: Yaesu G-5500 meters and readings to LVB tracker not
working (David Johnson)
6. Re: Yaesu G-5500 meters and readings to LVB tracker not
working (John Brier)
----------------------------------------------------------------------
Message: 1
Date: Mon, 5 Oct 2020 19:05:53 +0000 (UTC)
From: <aj9n@???.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2020-10-05
19:00 UTC
Message-ID: <684504603.1999868.1601924753904@????.?????.???>
Content-Type: text/plain; charset=UTF-8
Upcoming ARISS Contact Schedule as of 2020-10-05 19:00 UTC
?
Quick list of scheduled contacts and events:
?
McConnell Middle School, Loganville, GA, multi-point telebridge via ON4ISS
The ISS callsign is presently scheduled to be ONRISS ?
The scheduled astronaut is Chris Cassidy KF5KDR
Contact is go for: Wed 2020-10-07 14:18:44 UTC 81 deg (***)
The downlink frequency for this contact is 437.525 MHz.
?
Vladivostok, Russia, direct via TBD
The ISS callsign is presently scheduled to be RS?ISS
The scheduled astronaut is Anatoli Ivanishin
Watch for possible contact Fri 2020-10-09 08:15 UTC
?
?
An ARISS Slow Scan TV (SSTV) event is scheduled from the International Space
Station (ISS) for early October. The event is scheduled to begin on October
4 at 14:00 UTC for setup and operation and continue until October 8 ending
at 19:15 UTC. Dates and times are subject to change due to ISS operational
adjustments.? (***)
?
Images will be downlinked at 145.8 MHz +/- 3 KHz for Doppler shift and the
expected SSTV mode of operation is PD 120. The main theme of this collection
of images will be Satellites. Radio enthusiasts participating in the event
can post and view images on the ARISS SSTV Gallery at
https://www.spaceflightsoftware.com/ARISS_SSTV/.
?
After your image is posted at the gallery, you can acquire a special award
by linking to https://ariss.pzk.org.pl/sstv/and follow directions for
submitting a digital copy of your received image.
?
?
******************************************************************************
*******************************
?
?
?
There is a new radio on board the ISS.? The Kenwood D710GA is now in use.?
The crossband repeater is now available when the radio is not being used for
ARISS school contacts.?
?
The frequencies are 145.99 MHz up (67 tone) and 437.800 MHz down.? Watch the
Doppler on the downlink.?
?
?
##############################################################################
##########################################################
?
A multi-point telebridge contact means that each student will be on the
telebridge from their own home.
*************************************************
?
ARISS is very aware of the impact that COVID-19 is having on schools and the
public in general.? As such, we may have last minute cancellations or
postponements of school contacts.? As always, I will try to provide everyone
with near-real-time updates.?
?
The following schools have now been postponed or cancelled due to COVID-19:?
?
Postponed:
No new schools
?
Cancelled:
No new schools
?
?
The ARISS webpage is at https://www.ariss.org/ ???
?
Watch for future COVID-19 related announcements here also.
?
?
Note that there are links to other ARISS websites from this site.
?
The main page for Applying to Host a Scheduled Contact may be found at
https://www.ariss.org/apply-to-host-an-ariss-contact.html ???
ARISS Contact Applications (United States)
?
?
Note, all times are approximate. ?It is recommended that you do your own
orbital prediction?or start listening about 10 minutes before the listed
time.
All dates and times listed follow International Standard ISO 8601 date and
time format YYYY-MM-DD HH:MM:SS
?
The complete schedule page has been updated as of?2020-10-05 19:00 UTC. (***)
Here you will find a listing of all scheduled?school contacts, and
questions, other ISS related websites, IRLP and Echolink websites, and
instructions for any contact that may be streamed live.
?
https://www.amsat.org/amsat/ariss/news/arissnews.rtf
https://www.amsat.org/amsat/ariss/news/arissnews.txt
?
?
The successful school list has been updated as of 2020-10-01 03:00 UTC.
https://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf
?
?
?
The ARISS webpage is at https://www.ariss.org/ ???
Note that there are links to other ARISS websites from this site.
?
The main page for Applying to Host a Scheduled Contact may be found at
https://www.ariss.org/apply-to-host-an-ariss-contact.html ???
?
ARISS Contact Applications (United States) (***)
?
The Amateur Radio on the International Space Station (ARISS) Program is
seeking formal and informal education institutions and organizations,
individually or working together, to host an Amateur Radio contact with a
crew member on board the ISS. ARISS anticipates that the contact would be
held between July 1, 2021 and December 30,
2021. Crew scheduling and ISS orbits will determine the exact contact dates.
To maximize these radio contact opportunities, ARISS is looking for
organizations that will draw large numbers of participants and integrate the
contact into a well-developed education plan.
?
The deadline to submit a proposal is November 24th, 2020. Proposal
information and more details such as expectations, proposal guidelines and
the proposal form can be found at www.ariss.org. An ARISS Introductory
Webinar session will be held on October 8, 2020 at 8PM ET. The Eventbrite
link to sign up is: https://ariss-proposal-webinar-fall-2020.eventbrite.com
?
The Opportunity
?
Crew members aboard the International Space Station will participate in
scheduled Amateur Radio contacts. These radio contacts are approximately 10
minutes in length and allow students to interact with the astronauts through
a question-and-answer session.
?
An ARISS contact is a voice-only communication opportunity via Amateur Radio
between astronauts and cosmonauts aboard the space station and classrooms
and communities. ARISS contacts afford education audiences the opportunity
to learn firsthand from astronauts what it is like to live and work in space
and to learn about space research conducted on the ISS. Students also will
have an opportunity to learn about satellite communication, wireless
technology, and radio science.
?
Because of the nature of human spaceflight and the complexity of scheduling
activities aboard the ISS, organizations must demonstrate flexibility to
accommodate changes in dates and times of the radio contact.
?
Amateur Radio organizations around the world with the support of NASA and
space agencies in Russia, Canada, Japan and Europe present educational
organizations with this opportunity. The ham radio organizations? volunteer
efforts provide the equipment and operational support to enable
communication between crew on the ISS and students
around the world using Amateur Radio.
?
Please direct any questions to?ariss.us.education@?????.???.
?
For future proposal information and more details such as expectations,
proposal guidelines and proposal form, and dates and times of Information
Webinars, go to www.ariss.org.
?
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 ISS National Lab and National Aeronautics and
Space Administration (NASA). The primary goal of ARISS is to promote
exploration of science, technology, engineering, and mathematics (STEAM)
topics by organizing scheduled contacts via amateur radio between crew
members aboard the ISS and students in classrooms or public forms. Before
and during these radio contacts, students, educators, parents, and
communities learn about space, space technologies, and amateur radio. For
more information, see www.ariss.org.
?
******************************************************************************
**
ARISS Contact Applications (Europe, Africa and the Middle East)
?
Schools and Youth organizations in Europe, Africa and the Middle East
interested in setting up an ARISS radio contact with an astronaut on board
the International Space Station are invited to submit an application from
September to October and from February to April.
Please refer to details and the application form at
www.ariss-eu.org/school-contacts.? Applications should be addressed by email
to:? school.selection.manager@????????.???
?
ARISS Contact Applications (Canada, Central and South America, Asia and
Australia and Russia)
?
Organizations outside the United States can apply for an ARISS contact by
filling out an application.? Please direct questions to the appropriate
regional representative listed below. If your country is not specifically
listed, send your questions to the nearest ARISS Region listed. If you are
unsure which address to use, please send your question to the ARISS-Canada
representative; they will forward your question to the appropriate
coordinator.
?
For the application, go to:? https://www.ariss.org/ariss-application.html.
ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to:
ve3tbd@?????.???
ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to:
ariss@???????.???? Japan Amateur Radio League (JARL) https://www.jarl.org/
ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/
?
?
******************************************************************************
ARISS is always glad to receive listener reports for the above contacts.?
ARISS thanks everyone in advance for their assistance.? Feel free to send
your reports to aj9n@?????.??? or aj9n@???.???.
?
Listen for the ISS on the downlink of 145.8? MHz.
?
******************************************************************************
*
?
All ARISS contacts are made via the Kenwood radio unless otherwise noted.
?
******************************************************************************
*
Several of you have sent me emails asking about the RAC ARISS website and
not being able to get in. ?That has now been changed to https://www.ariss.org/
?
Note that there are links to other ARISS websites from this site.
?
****************************************************************************
Looking for something new to do?? How about receiving DATV from the ISS??
Please note that the HamTV system has been brought back to earth for
troubleshooting.? Please monitor ARISS-EU or ARISS-ON for the very latest
news on the troubleshooting efforts.?
?
If interested, then please go to the ARISS-EU website for complete details.?
Look for the buttons indicating Ham Video.????????????
?
http://www.ariss-eu.org/
?
If you need some assistance, ARISS mentor Kerry N6IZW, might be able to
provide some insight.? Contact Kerry at kbanke@?????????.???
?
?
The HamTV webpage:? https://www.amsat-on.be/hamtv-summary/
?
?
****************************************************************************
ARISS congratulations the following mentors who have now mentored over 100
schools:
?
Francesco IK?WGF with 140
Satoshi 7M3TJZ with 138
Sergey RV3DR with 136
Gaston ON4WF with 123
?
****************************************************************************
The webpages listed below were all reviewed for accuracy. Out of date
webpages were removed, and new ones have been added.? If there are additional
ARISS websites I need to know about, please let me know.
?
?
?
Total number of ARISS ISS to earth school events is 1400.
Each school counts as 1 event.??????????????????????????????????
Total number of ARISS ISS to earth school contacts is 1333.
Each contact may have multiple schools sharing the same time slot.
Total number of ARISS supported terrestrial contacts is 48.
?
A complete year by year breakdown of the contacts may be found in the
file.
https://www.amsat.org/amsat/ariss/news/arissnews.rtf
?
Please feel free to contact me if more detailed statistics are needed.
?
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The following US states and entities have never had an ARISS contact:
South Dakota, Wyoming, American?Samoa, Guam, Northern Marianas Islands, and
the Virgin Islands.
?
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
?
QSL information may be found at:
https://www.ariss.org/qsl-cards.html
?
ISS callsigns: DP?ISS, IR?ISS, NA1SS, OR4ISS, RS?ISS
?
****************************************************************************
Frequency chart for packet, voice, and crossband repeater modes showing
Doppler correction as of 2005-07-29 04:00 UTC
https://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction.
rtf
Check out the Zoho reports of the ARISS contacts
?
https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415
****************************************************************************
?
Exp. 62 now on orbit
Chris Cassidy KF5KDR
Anatoli Ivanishin
Ivan Vagner
****************************************************************************
73,
Charlie?Sufana AJ9N
One of the ARISS operation team mentors
?
?
?
?
?
?
?
?
?
?
------------------------------
Message: 2
Date: Mon, 5 Oct 2020 20:09:04 +0000
From: Gary <gary_mayfield@???????.???>
To: "john@??????.???? <john@??????.???>, "AMSAT-BB@?????.????
<AMSAT-BB@?????.???>
Subject: Re: [amsat-bb] G5500/G5500DC/G5400 Rotor Problems
Message-ID:
<DM6PR13MB3866B7219114D110644D2DC78A0C0@?????????????.????????.????.???????.??
?>
Content-Type: text/plain; charset="utf-8"
Indeed the Yaesu rotator problems are a regular topic. I just want to add I
have found the pot to be easily repairable. I have not seen the pot in the
"new" DC version, but in the older models the pot has a small wire soldered
from the center back of the pot to wiper leg of the pot. As the pot turn
this wire twists. The wire fails from flexing usually where it was
'hardened' by soldering. The failed wire is held in place by the insulation
so depending on the angle it works over part of the range. This wire making
and breaking contact results in the erratic readings of AZ or EL.
They like to fail in South Dakota too ?
73,
Gary "Joe" kk0sd
-----Original Message-----
From: AMSAT-BB <amsat-bb-bounces@?????.???> On Behalf Of john--- via AMSAT-BB
Sent: Monday, October 5, 2020 12:43 PM
To: amsat-bb@?????.???
Subject: [amsat-bb] G5500/G5500DC/G5400 Rotor Problems
You can go back through the amsat-bb archives and find many of the same
problems that are being talked about now. Yaesu rotor problems are not new
and are re-discussed from time to time.
I have a G5500 on my Arizona station. It was installed in 2013 and it was a
used rotor at the time. It worked ok for several years. I had it tracking
Funcube 24x7 for many months and that was probably not a wise decision
considering the potential problems. A few years ago I started to experience
what is being talked about now. The azimuth readings started to be erratic.
The LVB tracker would give up trying to move the rotor and since I was not
there to manually move it, I would use the park command in SatPC32 to try to
get past the intermittent areas. That would work for a while but soon I
could not park the rotor from about
100 degrees back to zero.
So the best option for me was to buy a replacement azimuth rotor (no control
box or elevation rotor). This was a catalog item at many ham radio supply
houses. So last December my son and I replaced the azimuth rotor with the
new Yaesu unit. I thought I would be good for a few years but that would
not be the case. I planned to repair the original az rotor by replacing the
pot and have it available if the rotor should
fail in the future.
In August the rotor started showing signs of the same problem. I noticed
that the actual azimuth was lagging behind what SatPC32 was sending to the
LVB tracker. Eventually it would get past the bad spot and movement would
be normal until it got to another bad area. So the new rotor only lasted 8
months and I wasn't tracking and downloading data on any satellite.
So what is different about Arizona? For one thing the temperature gets to
120F and when the sun shines, as it does most every day, the dark cclor of
the rotor absorbs the heat and the temp inside the rotor is likely sky high.
Could that be a reason that the potentiometer is failing? Maybe and maybe
not.
Several years ago I ordered replacement pots from Yaesu. The shaft on these
pots is metric so 1/4" American made pots will not fit. You are stuck with
metric components. The part number on the replacement pots is RA25Y25S
B501. You can look it up on the web. The specs for this pot are 15,000
cycles and 100 degrees C. I doubt if the temp inside the rotor exceeded
100C so it should have held up in the Arizona sun.
15,000 cycles is a lot and you can do the math.
The next question is what is the part number of the pot in my new azimuth
rotor? Did Yaesu change suppliers over the years and what are the specs of
the pots they are using now? Once I disassemble the old rotor which is in
Arizona, I will know if the part number is different than the replacement
pots I purchased. I could send the new rotor back to Yaesu under warranty
and have it repaired, but why do that if the same pot is used to repair the
unit and will likely fail again?
I thought I was alone with this problem but after asking around I found that
that might not be the case. KB6LTY is experiencing the same problem with a
new G5500DC that she purchased not long ago. There appears to be a systemic
problem here. Changing the pot may work for a while but you can't be taking
things apart every year just to have the same problem occur shortly
thereafter. K3RRR reported similar problems
and his story should be told here as well.
Last year Yaesu changed the model number of the G5500 to the G5500DC.
There was no announcement and ham radio dealers knew nothing about the
change. EA4TX who makes replacement control boxes was also unaware of the
change. The motors in the rotors are now DC rather than AC. The controller
is different, but Yaesu did not publish the schematic in their instruction
manual as they did with the G5400/5500 series. One satellite operator
noticed that when SatPC32 sent a command to move the az and the el at the
same time, the control box would go into a fault condition. Apparently the
control box detected an overcurrent condition due to a high startup current
and shut down. I'm not sure if that issue was resolved by Yaesu or by a
software change. Just another thing to be aware of if you have a new DC
model.
Another thing to be aware of is that there are meter amplifiers in the the
control box that are used to isolate and control the output voltage to
interfaces like the LVB tracker. These meter amplifiers can become erratic
rendering the interface unusable. The meters in the control box are
separate so if they are reading properly and don't jump around, erratic
readings going to the computer interface are likely caused by the meter
amplifiers and have nothing to do with the pots in the rotors
themselves.
If you have experienced these kinds of problems and have or have not
resolved them, please post so that we can determine how widespread these
issues are and possible fixes.
73, John K8YSE
_______________________________________________
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: https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 3
Date: Mon, 5 Oct 2020 17:50:07 -0400
From: John Brier <johnbrier@?????.???>
To: Jeff <kb2mjeff@???.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Yaesu G-5500 meters and readings to LVB
tracker not working
Message-ID:
<CALn0fKMaTcn7unTVWCqfvJa8hXrtQeLZWvSYthS083veaLH64Q@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
I don't think anything is wrong with the rotators themselves. They turns
fine. It was only used a few times for field day. I have never had an
antenna on them though. Got it used.
Also, I am aware of the many posts about these products. The most common
issue with the control box seems to be the meters don't work but readings
are okay to PC interface. Both meters and readings are bad on my control
box.
Does anyone have a good source on the connectors for the cables into the
rotators?
73, John Brier KG4AKV
On Mon, Oct 5, 2020, 09:12 <kb2mjeff@???.???> wrote:
> When I looked at this message again I thought it might be the loose drive
> gear set screw issue . Does the rotor sound like it's turning, but antennas
> not moving? If so you will have to take it almost completely apart to get
> to
> the drive gear set screw to apply Loctite, like Yeasu should have done when
> they assembled it. I had to do that to one of my 5500 a few years ago. If
> you do take it apart for another reason for the failure, make sure to apply
> the Loctite anyway.
>
> 73 Jeff kb2m
>
> -----Original Message-----
> From: AMSAT-BB <amsat-bb-bounces@?????.???> On Behalf Of Burns Fisher via
> AMSAT-BB
> Sent: Sunday, October 4, 2020 7:19 PM
> To: John Brier <johnbrier@?????.???>
> Cc: AMSAT BB <amsat-bb@?????.???>
> Subject: Re: [amsat-bb] Yaesu G-5500 meters and readings to LVB tracker not
> working
>
> Oh, you were tapping the CONTROL BOX! I totally missed that.
>
> One problem I have had is with those darned screw terminals. It is really
> easy to get the wires shorted--I put all of my wires in eye terminals, but
> I
> had a strand of wire sticking out in one case, and in another the angle
> of the terminal moved around and touched another. I finally bent them so
> the wires all feed in at 90 degrees to the screw/loop. Maybe a bit
> obvious,
> but...
>
> 73,
>
> Burns WB1FJ
>
> On Sat, Oct 3, 2020 at 9:04 PM John Brier via AMSAT-BB <amsat-bb@?????.???
> >
> wrote:
>
> > Thanks Jim.
> >
> > So, I did that a dozen times for the azimuth side and it didn't make
> > much of a difference. It did start reading (instead of staying at
> > around 0), going to about 180, but never much beyond that that. And
> > eventually it seemed to get stuck again.
> >
> > However, when I started doing the same for the elevation rotator I
> > noticed that the cable jacket was falling out of the connector. The
> > rubber and the connector wasn't compressing the jacket so there was
> > presumably stress on the wires. When I pushed the cable in the
> > connector the meter started reading right.
> >
> > There is a similar issue on the connector on the cable I am using for
> > azimuth but pushing it in towards the connector or wiggling it doesn't
> > seem to help.
> >
> > I think I am going to redo these cables. They came with the rotator
> > and there is also a disconnect a few feet from the rotator connectors.
> > Not sure what for. The connector there is wrapped in electrical tape
> > so I am not sure what state it is in.
> >
> > One question: If the issue is in the rotator or a connection issue at
> > the rotator, why would tapping the control box affect the issue?
> >
> > The only thing I can think of is there could be another issue in the
> > box (connection or otherwise).
> >
> >
> > 73, John Brier KG4AKV
> >
> > On Sat, Oct 3, 2020, 18:12 Jim Walls via AMSAT-BB <amsat-bb@?????.???>
> > wrote:
> >
> > >
> > > <snip>
> > >
> > > Sounds like the position pots in the rotor (not the controller) are
> > > dirty. That does make some sense with it not being used for several
> > > years. Step one (the easy way) is to use the manual control levers
> > > on the controller and repeatedly move the rotors from end to end
> > > while watching the needles. If you are a bit lucky, after a few
> > > passes back and forth, the needles will start responding correctly.
> > > Keep trying at least a dozen full passes back and forth before
> > > giving up on this method. The next method requires disassembly of
> > > the rotor - now you know why I suggest giving the first method lots
> > > of tries before giving up on it. If you have to resort to the
> > > second method, I will let someone who has done that more recently
> > > than I (about 20 years) give instructions.
> > >
> > > --
> > > 73
> > > -------------------------------------
> > > Jim Walls - K6CCC
> > > jim@?????.???
> > > Ofc: 818-548-4804
> > > http://members.dslextreme.com/users/k6ccc/
> > > AMSAT Member 32537 - WSWSS Member 395
> > >
> > > _______________________________________________
> > > 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:
> > > https://www.amsat.org/mailman/listinfo/amsat-bb
> > >
> > _______________________________________________
> > 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: https://www.amsat.org/mailman/listinfo/amsat-bb
> >
> _______________________________________________
> 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: https://www.amsat.org/mailman/listinfo/amsat-bb
>
>
------------------------------
Message: 4
Date: Mon, 5 Oct 2020 17:43:27 -0500
From: JoAnne K9JKM <k9jkm@???????.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] Searching amsat-bb for G5500/G5500DC/G5400 Rotor
Problems
Message-ID: <5F7BA18F.40505@???????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
> You can go back through the amsat-bb archives
It is possible to search the AMSAT-BB archives by using the "site:"
command in Google.
For example, to find all mentions of the word "G5500" in amsat-BB, type
this line into Google:
G5500 site:http://amsat.org/pipermail/amsat-bb
To restrict the search to a particular year, type:
G5500 site:http://amsat.org/pipermail/amsat-bb/2020
Perhaps you'll find the 5500 rotator threads quicker with this search
technique. Just fine tune your search in that 'keyword' before the
'site:' to zero in on your particular
--
73 de JoAnne K9JKM
k9jkm@?????.???
------------------------------
Message: 5
Date: Mon, 5 Oct 2020 17:59:30 -0500
From: David Johnson <david.johnson.bbq@?????.???>
To: John Brier <johnbrier@?????.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Yaesu G-5500 meters and readings to LVB
tracker not working
Message-ID:
<CAPz2khb4D30zMhNbrd5uuupAEdydnfam-P6rrqsPR4v8wzB+0g@????.?????.???>
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The part number is *NJW-207-PF10 *CONNECTOR (NANABOSHI). If you Google it,
you will find some distributors.
Dave Johnson
W9DWJ
On Mon, Oct 5, 2020 at 4:59 PM John Brier via AMSAT-BB <amsat-bb@?????.???>
wrote:
> I don't think anything is wrong with the rotators themselves. They turns
> fine. It was only used a few times for field day. I have never had an
> antenna on them though. Got it used.
>
> Also, I am aware of the many posts about these products. The most common
> issue with the control box seems to be the meters don't work but readings
> are okay to PC interface. Both meters and readings are bad on my control
> box.
>
> Does anyone have a good source on the connectors for the cables into the
> rotators?
>
> 73, John Brier KG4AKV
>
> On Mon, Oct 5, 2020, 09:12 <kb2mjeff@???.???> wrote:
>
> > When I looked at this message again I thought it might be the loose drive
> > gear set screw issue . Does the rotor sound like it's turning, but
> antennas
> > not moving? If so you will have to take it almost completely apart to get
> > to
> > the drive gear set screw to apply Loctite, like Yeasu should have done
> when
> > they assembled it. I had to do that to one of my 5500 a few years ago. If
> > you do take it apart for another reason for the failure, make sure to
> apply
> > the Loctite anyway.
> >
> > 73 Jeff kb2m
> >
> > -----Original Message-----
> > From: AMSAT-BB <amsat-bb-bounces@?????.???> On Behalf Of Burns Fisher
> via
> > AMSAT-BB
> > Sent: Sunday, October 4, 2020 7:19 PM
> > To: John Brier <johnbrier@?????.???>
> > Cc: AMSAT BB <amsat-bb@?????.???>
> > Subject: Re: [amsat-bb] Yaesu G-5500 meters and readings to LVB tracker
> not
> > working
> >
> > Oh, you were tapping the CONTROL BOX! I totally missed that.
> >
> > One problem I have had is with those darned screw terminals. It is
> really
> > easy to get the wires shorted--I put all of my wires in eye terminals,
> but
> > I
> > had a strand of wire sticking out in one case, and in another the angle
> > of the terminal moved around and touched another. I finally bent them
> so
> > the wires all feed in at 90 degrees to the screw/loop. Maybe a bit
> > obvious,
> > but...
> >
> > 73,
> >
> > Burns WB1FJ
> >
> > On Sat, Oct 3, 2020 at 9:04 PM John Brier via AMSAT-BB <
> amsat-bb@?????.???
> > >
> > wrote:
> >
> > > Thanks Jim.
> > >
> > > So, I did that a dozen times for the azimuth side and it didn't make
> > > much of a difference. It did start reading (instead of staying at
> > > around 0), going to about 180, but never much beyond that that. And
> > > eventually it seemed to get stuck again.
> > >
> > > However, when I started doing the same for the elevation rotator I
> > > noticed that the cable jacket was falling out of the connector. The
> > > rubber and the connector wasn't compressing the jacket so there was
> > > presumably stress on the wires. When I pushed the cable in the
> > > connector the meter started reading right.
> > >
> > > There is a similar issue on the connector on the cable I am using for
> > > azimuth but pushing it in towards the connector or wiggling it doesn't
> > > seem to help.
> > >
> > > I think I am going to redo these cables. They came with the rotator
> > > and there is also a disconnect a few feet from the rotator connectors.
> > > Not sure what for. The connector there is wrapped in electrical tape
> > > so I am not sure what state it is in.
> > >
> > > One question: If the issue is in the rotator or a connection issue at
> > > the rotator, why would tapping the control box affect the issue?
> > >
> > > The only thing I can think of is there could be another issue in the
> > > box (connection or otherwise).
> > >
> > >
> > > 73, John Brier KG4AKV
> > >
> > > On Sat, Oct 3, 2020, 18:12 Jim Walls via AMSAT-BB <amsat-bb@?????.???>
> > > wrote:
> > >
> > > >
> > > > <snip>
> > > >
> > > > Sounds like the position pots in the rotor (not the controller) are
> > > > dirty. That does make some sense with it not being used for several
> > > > years. Step one (the easy way) is to use the manual control levers
> > > > on the controller and repeatedly move the rotors from end to end
> > > > while watching the needles. If you are a bit lucky, after a few
> > > > passes back and forth, the needles will start responding correctly.
> > > > Keep trying at least a dozen full passes back and forth before
> > > > giving up on this method. The next method requires disassembly of
> > > > the rotor - now you know why I suggest giving the first method lots
> > > > of tries before giving up on it. If you have to resort to the
> > > > second method, I will let someone who has done that more recently
> > > > than I (about 20 years) give instructions.
> > > >
> > > > --
> > > > 73
> > > > -------------------------------------
> > > > Jim Walls - K6CCC
> > > > jim@?????.???
> > > > Ofc: 818-548-4804
> > > > http://members.dslextreme.com/users/k6ccc/
> > > > AMSAT Member 32537 - WSWSS Member 395
> > > >
> > > > _______________________________________________
> > > > 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:
> > > > https://www.amsat.org/mailman/listinfo/amsat-bb
> > > >
> > > _______________________________________________
> > > 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: https://www.amsat.org/mailman/listinfo/amsat-bb
> > >
> > _______________________________________________
> > 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: https://www.amsat.org/mailman/listinfo/amsat-bb
> >
> >
> _______________________________________________
> 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: https://www.amsat.org/mailman/listinfo/amsat-bb
>
--
David Johnson
------------------------------
Message: 6
Date: Mon, 5 Oct 2020 19:36:01 -0400
From: John Brier <johnbrier@?????.???>
To: David Johnson <david.johnson.bbq@?????.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Yaesu G-5500 meters and readings to LVB
tracker not working
Message-ID:
<CALn0fKO04XizxfoPPEM_EcvhbCNJ4OOpPf_xrWpmgukag5o2rg@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Thanks Dave!
73, John Brier KG4AKV
On Mon, Oct 5, 2020 at 6:59 PM David Johnson
<david.johnson.bbq@?????.???> wrote:
>
> The part number is NJW-207-PF10 CONNECTOR (NANABOSHI). If you Google it,
you will find some distributors.
>
> Dave Johnson
> W9DWJ
>
> On Mon, Oct 5, 2020 at 4:59 PM John Brier via AMSAT-BB
<amsat-bb@?????.???> wrote:
>>
>> I don't think anything is wrong with the rotators themselves. They turns
>> fine. It was only used a few times for field day. I have never had an
>> antenna on them though. Got it used.
>>
>> Also, I am aware of the many posts about these products. The most common
>> issue with the control box seems to be the meters don't work but readings
>> are okay to PC interface. Both meters and readings are bad on my control
>> box.
>>
>> Does anyone have a good source on the connectors for the cables into the
>> rotators?
>>
>> 73, John Brier KG4AKV
>>
>> On Mon, Oct 5, 2020, 09:12 <kb2mjeff@???.???> wrote:
>>
>> > When I looked at this message again I thought it might be the loose drive
>> > gear set screw issue . Does the rotor sound like it's turning, but
antennas
>> > not moving? If so you will have to take it almost completely apart to get
>> > to
>> > the drive gear set screw to apply Loctite, like Yeasu should have done
when
>> > they assembled it. I had to do that to one of my 5500 a few years ago. If
>> > you do take it apart for another reason for the failure, make sure to
apply
>> > the Loctite anyway.
>> >
>> > 73 Jeff kb2m
>> >
>> > -----Original Message-----
>> > From: AMSAT-BB <amsat-bb-bounces@?????.???> On Behalf Of Burns Fisher via
>> > AMSAT-BB
>> > Sent: Sunday, October 4, 2020 7:19 PM
>> > To: John Brier <johnbrier@?????.???>
>> > Cc: AMSAT BB <amsat-bb@?????.???>
>> > Subject: Re: [amsat-bb] Yaesu G-5500 meters and readings to LVB tracker
not
>> > working
>> >
>> > Oh, you were tapping the CONTROL BOX! I totally missed that.
>> >
>> > One problem I have had is with those darned screw terminals. It is
really
>> > easy to get the wires shorted--I put all of my wires in eye terminals,
but
>> > I
>> > had a strand of wire sticking out in one case, and in another the angle
>> > of the terminal moved around and touched another. I finally bent them
so
>> > the wires all feed in at 90 degrees to the screw/loop. Maybe a bit
>> > obvious,
>> > but...
>> >
>> > 73,
>> >
>> > Burns WB1FJ
>> >
>> > On Sat, Oct 3, 2020 at 9:04 PM John Brier via AMSAT-BB
<amsat-bb@?????.???
>> > >
>> > wrote:
>> >
>> > > Thanks Jim.
>> > >
>> > > So, I did that a dozen times for the azimuth side and it didn't make
>> > > much of a difference. It did start reading (instead of staying at
>> > > around 0), going to about 180, but never much beyond that that. And
>> > > eventually it seemed to get stuck again.
>> > >
>> > > However, when I started doing the same for the elevation rotator I
>> > > noticed that the cable jacket was falling out of the connector. The
>> > > rubber and the connector wasn't compressing the jacket so there was
>> > > presumably stress on the wires. When I pushed the cable in the
>> > > connector the meter started reading right.
>> > >
>> > > There is a similar issue on the connector on the cable I am using for
>> > > azimuth but pushing it in towards the connector or wiggling it doesn't
>> > > seem to help.
>> > >
>> > > I think I am going to redo these cables. They came with the rotator
>> > > and there is also a disconnect a few feet from the rotator connectors.
>> > > Not sure what for. The connector there is wrapped in electrical tape
>> > > so I am not sure what state it is in.
>> > >
>> > > One question: If the issue is in the rotator or a connection issue at
>> > > the rotator, why would tapping the control box affect the issue?
>> > >
>> > > The only thing I can think of is there could be another issue in the
>> > > box (connection or otherwise).
>> > >
>> > >
>> > > 73, John Brier KG4AKV
>> > >
>> > > On Sat, Oct 3, 2020, 18:12 Jim Walls via AMSAT-BB <amsat-bb@?????.???>
>> > > wrote:
>> > >
>> > > >
>> > > > <snip>
>> > > >
>> > > > Sounds like the position pots in the rotor (not the controller) are
>> > > > dirty. That does make some sense with it not being used for several
>> > > > years. Step one (the easy way) is to use the manual control levers
>> > > > on the controller and repeatedly move the rotors from end to end
>> > > > while watching the needles. If you are a bit lucky, after a few
>> > > > passes back and forth, the needles will start responding correctly.
>> > > > Keep trying at least a dozen full passes back and forth before
>> > > > giving up on this method. The next method requires disassembly of
>> > > > the rotor - now you know why I suggest giving the first method lots
>> > > > of tries before giving up on it. If you have to resort to the
>> > > > second method, I will let someone who has done that more recently
>> > > > than I (about 20 years) give instructions.
>> > > >
>> > > > --
>> > > > 73
>> > > > -------------------------------------
>> > > > Jim Walls - K6CCC
>> > > > jim@?????.???
>> > > > Ofc: 818-548-4804
>> > > > http://members.dslextreme.com/users/k6ccc/
>> > > > AMSAT Member 32537 - WSWSS Member 395
>> > > >
>> > > > _______________________________________________
>> > > > 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:
>> > > > https://www.amsat.org/mailman/listinfo/amsat-bb
>> > > >
>> > > _______________________________________________
>> > > 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: https://www.amsat.org/mailman/listinfo/amsat-bb
>> > >
>> > _______________________________________________
>> > 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: https://www.amsat.org/mailman/listinfo/amsat-bb
>> >
>> >
>> _______________________________________________
>> 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: https://www.amsat.org/mailman/listinfo/amsat-bb
>
>
>
> --
> David Johnson
------------------------------
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!
https://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 15, Issue 399
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