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CX2SA > SATDIG 22.10.18 08:57l 1020 Lines 33921 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: KR-400 transformer wiring (Hans BX2ABT)
2. Re: 2 meter interference from WiFi hub (Paul Stoetzer)
3. AO-91 Transatlantic (Peter Green)
4. Re: AlfaSpid issue (kb2mjeff@???.????
5. Re: AO-91 Transatlantic (kb2mjeff@???.????
6. Re: AlfaSpid issue (Dave Webb KB1PVH)
7. Re: 2 meter interference from WiFi hub (Jean Marc Momple)
8. DSLWP-B UHF Plan (???)
9. Re: AlfaSpid issue FIXED (kb2mjeff@???.????
10. Re: KR-400 transformer wiring (Hans BX2ABT)
----------------------------------------------------------------------
Message: 1
Date: Sun, 21 Oct 2018 23:10:32 +0800
From: Hans BX2ABT <hans.bx2abt@???.?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] KR-400 transformer wiring
Message-ID: <9f575d03-fb04-65c4-7082-677e6ea430ff@???.?????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
Ah, I forgot about the (double compared to 220V) current being
distributed between two parallel windings when using 110V, so that must
be it. It's late now, but will try Monday. Cheers,
Hans
On 10/21/18 10:24 PM, Jim Sanford wrote:
> Try this:
>
> Remove the short from 2 and 5.
>
> Connect 110V to 1 and 2.
>
> Short 3 - 6.
>
> Measure output voltage.? If too low, put power at 4 and 5.
>
>
> It is possible that this would put 3 - 5 and 4 - 6 in opposite
> phases.? In which case, you'll have ZERO output.? In this case, short
> 3 and 4 instead of 3 and 6.? Again try power at 1 and 2 first.
>
>
> Good luck, and please share results!
>
> 73,
>
> Jim
>
> wb4gcs@?????.???
>
>
>
> On 10/21/2018 9:12 AM, Hans BX2ABT wrote:
>> I got this old KR-400 azimuth rotor as a gift, but is wired for 220V
>> and I need to run it off of 110V. The transformer's wiring now looks
>> like this:
>>
>>
>> ???? |? 220V? |
>> ???? |??????? |
>> |~~~~|~~~~|?? |~~~~|~~~~|
>> 5??? 1??? 3?? 6??? 2??? 4
>> |????????????????? |
>> |__________________|
>>
>>
>> If the drawing is messed up, here is the gist of it: The primary
>> consists of two (parallel/separate) windings, one with odd, one with
>> even numbering (3-5 and 4-6) with the center of the winding named 1
>> and 2. Currently 2 and 5 are shorted and 220V comes in at 1 and 6. So
>> current flows from 1 to 5 to 2 to 6 and vice versa.
>>
>> To rewire to 110V I guess I just use any of the combination 1-3, 1-5,
>> 2-4 or 2-6. But I am just curious why the 220V wiring was done over
>> two coils, not one? Was this factory standard or has my unit been
>> modified with a different transformer?
>>
>> Once I get the control unit powered up it time to test the rotator
>> and see if it needs any maintenance (probably will, because it hasn't
>> been used for a long while).
>>
>> _______________________________________________
>> 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
>
>
> ---
> This email has been checked for viruses by Avast antivirus software.
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>
>
>
>
------------------------------
Message: 2
Date: Sun, 21 Oct 2018 11:47:41 -0400
From: Paul Stoetzer <n8hm@????.???>
To: Burns Fisher <burns@??????.??>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] 2 meter interference from WiFi hub
Message-ID:
<CABzOSOodrBSt+aS4ic7O2kuOQzU2ox+Z_BQj3GKU5vJohoN-tw@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Try putting ferrite beads on all of your cables into and out of the
routers, modems, etc.
73,
Paul, N8HM
On Sun, Oct 21, 2018 at 11:12 AM Burns Fisher <burns@??????.??> wrote:
>
> Turns out it was NOT the hub. It was the camera I had plugged into it with
> CAT5. The camera is looking at my antennas so I can see where they are
> rotating, but the wire runs a ways. Probably radiates nicely, and
> conveniently right in the 2 meter band. More fooling around required...
>
> On Sun, Oct 21, 2018 at 9:08 AM Burns Fisher <burns@??????.??> wrote:
>
> > Thanks, Jerry. This one is clearly mine. I unplug it...the frequency
> > comes back. I thought it might be beating two different channels, and I
> > guess that's possible but the WiFi channels are 5MHz apart, although they
> > do overlap. For now, I'll just turn it off when trying to use AO-91 :-)
> >
> > On Sun, Oct 21, 2018 at 12:57 AM Jerry Buxton <n0jy@?????.???> wrote:
> >
> >> On 10/20/2018 18:57, Burns Fisher wrote:
> >> > So the question is: I want to replace this with another WiFi hub.
Does
> >> > anyone have good or bad recommendations for a hub that does not
> >> generate a
> >> > lot of RF? (When you google Wi-Fi and RF interference, you mainly get
> >> other
> >> > things that interfere with Wi-Fi :-))
> >> I have an older router that caused me some problems, but it's not made
> >> any longer so you don't have to worry about not buying one. I solved
> >> that problem by moving it out of the attic, to a downstairs bedroom
> >> farther away.
> >>
> >> But just FYI for possible future problems, I do still pick up
> >> interference from a neighbor that gets in the way of AO-73 and AO-92 at
> >> the lower end of their passband/Doppler shift. So it may not always be
> >> your own!
> >>
> >> Jerry Buxton, N?JY
> >>
> >> _______________________________________________
> >> 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
> >>
> >
> _______________________________________________
> 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: Sun, 21 Oct 2018 15:52:11 +0100
From: Peter Green <peteragreen@??.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] AO-91 Transatlantic
Message-ID: <73ADAC05-88B3-4116-B17F-FB1175B59E2F@??.???>
Content-Type: text/plain; charset=us-ascii
Hi Burns
Many thanks for the QS so it was a little scratchy at times but we made it
thank you for FN42.
There was also a CU3 and an EA5 calling on the satellite.
It would be absolutely great to get more operation from North America on the
FM satellite working transatlantic.
Thanks again for taking the time and trouble to come up on the satellite.
Best wishes
Pete G0ABI
Sent from my iPhone
------------------------------
Message: 4
Date: Sun, 21 Oct 2018 11:53:59 -0400
From: <kb2mjeff@???.???>
To: "Amsat" <amsat-bb@?????.???>
Subject: Re: [amsat-bb] AlfaSpid issue
Message-ID: <46D099977F0D48E482667D58714E3538@???????>
Content-Type: text/plain; format=flowed; charset="UTF-8";
reply-type=original
Someone just emailed me a reset procedure for a ROT1, does anyone happen to
have the procedure for a ROT2 ? Thanks...
73 Jeff kb2m
-----Original Message-----
From: kb2mjeff@???.???
Sent: Sunday, October 21, 2018 11:08 AM
To: Amsat
Subject: Re: [amsat-bb] AlfaSpid issue
After going over the schematic (Thanks Dimitry) I see nothing wrong with the
hardware, in fact I wonder if there was ever a hardware issue. I used the EL
cable to move the antennas CCW about 1.5 turns. When I fired it up after
replacing the relays it was stuck in CW on. I had to do this in an odd way ,
by resetting the el down 20 degrees at a time to bring the antennas back to
north. Now I get no tactile(relay click on CCW AND EL up with the cables
disconnected. All 4 relays seem good, this to me appears to be in the ROT2
firmware. Jerking around with the buttons in the setup routines in a meaning
less way will get all for relays to click, but when I go to operational mode
I?m back to CCW and EL only. Monday I?m going to try and contact someone who
represents this company in the US. Anyone have a contact for AlfaSpid in the
US? It seems there are lots of issues with this controller...
73 Jeff kb2m
I had similar problems to this over the last 18 months with the SPID ROT2
controller.
It was replaced 3 times and showed the same issue as you have intermittently
over this time. I am using MacDoppler and my supplier and the manufacturer
were convinced it was software.
On returning to the manufacturer and taking the trouble to get my concerns
and issues translated into Polish. I track numerous satellites, some one
after another and listed all of this. So I returned the controller and rotor
to Poland (at their expense) but they only tracked the ISS over a couple of
days and found nothing wrong. Not wanting to continue with the ROT2 as I was
convinced this was the issue I upgraded to their MD02 controller. Although
this has its own quirks I have not suffered from the same relay related
issue since.
There are also several YouTube videos of the problem that yours is
exhibiting https://youtu.be/GWbhez5vadM
Sorry I haven?t got the cure.
Best 73
Pete G0ABI
On 20 Oct 2018, at 23:37, kb2mjeff@???.??? wrote:
Here I go answering my own questions. I think I found part of my problem.
The buttons don't
line up in the case very well and caused the rotor to hung up turning in
one direction. That was problem number two, I fixed problem number one the
bad relay that started all of this.To fix this temporality I have the board
out of the case to test and what is now happening is that I still can't
turn CCW. All buttons work ok except for the CCW button. I tried a reset
thinking that I'm over some set location in the firmware that I cant go CCW,
but the reset doesn't work. I replaced all 4 relays. With the rotor
completely disconnected I can get a relay click for every rotational control
button except CCW, it has to be a glitch in the firmware I can't clear, as I
replaced all four relays. And no I really don't want to spend the $900 for
the green heron controller. Any other ideas?
Thanks for your help...
73 Jeff kb2m
-----Original Message----- From: kb2mjeff@???.???
Sent: Saturday, October 20, 2018 3:37 PM
To: Amsat
Subject: [amsat-bb] AlfaSpid issue
I?m back at my winter home in Florida and decided today, to work on my
AlfaSpid rotor control box issue. I replaced two relays to fix the Elevation
issue but in testing it before I replaced the other two relays I?m now
having a problem with the azimuth that?s been working 100% until this point.
When I turn on the rotor control the elevation now seems to work ok, but now
the azimuth immediately goes into a clockwise rotation. No matter what I do
to the controller, upon startup it starts turning CW, only way to stop is to
power it down The azimuth was working fine this morning when a worked a
couple of sat passes. Anyone have any ideas? Does anyone know where I can
send this to have it fixed? I have no schematic, or even simple instructions
on how to reset, etc.
73
---
This email has been checked for viruses by AVG.
https://www.avg.com
_______________________________________________
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: 5
Date: Sun, 21 Oct 2018 12:04:57 -0400
From: <kb2mjeff@???.???>
To: "Amsat" <amsat-bb@?????.???>
Subject: Re: [amsat-bb] AO-91 Transatlantic
Message-ID: <309F664348FD4F58BDB1FC7CDF548C20@???????>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
I remember 20 something years ago I used to take my family to Bar Harbor
Maine for a 2 week vacation every summer. I worked many EU countries on the
FM birds at that time from Cadillac mountain, 1485 feet above sea level. I'm
sure if I was into wallpaper I could claim the max distance FM contact, but
I'm not. I also remember working England on APRS off the sats while
mobiling around. Good memories....
73 Jeff kb2m
-----Original Message-----
From: Peter Green via AMSAT-BB
Sent: Sunday, October 21, 2018 10:52 AM
To: amsat-bb@?????.???
Subject: [amsat-bb] AO-91 Transatlantic
Hi Burns
Many thanks for the QS so it was a little scratchy at times but we made it
thank you for FN42.
There was also a CU3 and an EA5 calling on the satellite.
It would be absolutely great to get more operation from North America on the
FM satellite working transatlantic.
Thanks again for taking the time and trouble to come up on the satellite.
Best wishes
Pete G0ABI
Sent from my iPhone
---
This email has been checked for viruses by AVG.
https://www.avg.com
------------------------------
Message: 6
Date: Sun, 21 Oct 2018 12:05:16 -0400
From: Dave Webb KB1PVH <kb1pvh@?????.???>
To: kb2m <kb2m@????.???>
Cc: AMSAT -BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] AlfaSpid issue
Message-ID:
<CAEMY9Fdqwe+rfxFQBiXrVrZTPUv5zHJsE1onvGH86EzDTQyH=w@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
That procedure works on the rot2prog that's why I sent it.
Dave-KB1PVH
Sent from my Galaxy S9
On Sun, Oct 21, 2018, 11:55 AM <kb2mjeff@???.???> wrote:
> Someone just emailed me a reset procedure for a ROT1, does anyone happen
> to
> have the procedure for a ROT2 ? Thanks...
>
> 73 Jeff kb2m
>
> -----Original Message-----
> From: kb2mjeff@???.???
> Sent: Sunday, October 21, 2018 11:08 AM
> To: Amsat
> Subject: Re: [amsat-bb] AlfaSpid issue
>
> After going over the schematic (Thanks Dimitry) I see nothing wrong with
> the
> hardware, in fact I wonder if there was ever a hardware issue. I used the
> EL
> cable to move the antennas CCW about 1.5 turns. When I fired it up after
> replacing the relays it was stuck in CW on. I had to do this in an odd way
> ,
> by resetting the el down 20 degrees at a time to bring the antennas back
> to
> north. Now I get no tactile(relay click on CCW AND EL up with the cables
> disconnected. All 4 relays seem good, this to me appears to be in the ROT2
> firmware. Jerking around with the buttons in the setup routines in a
> meaning
> less way will get all for relays to click, but when I go to operational
> mode
> I?m back to CCW and EL only. Monday I?m going to try and contact someone
> who
> represents this company in the US. Anyone have a contact for AlfaSpid in
> the
> US? It seems there are lots of issues with this controller...
>
> 73 Jeff kb2m
>
>
> I had similar problems to this over the last 18 months with the SPID ROT2
> controller.
>
> It was replaced 3 times and showed the same issue as you have
> intermittently
> over this time. I am using MacDoppler and my supplier and the manufacturer
> were convinced it was software.
> On returning to the manufacturer and taking the trouble to get my concerns
> and issues translated into Polish. I track numerous satellites, some one
> after another and listed all of this. So I returned the controller and
> rotor
> to Poland (at their expense) but they only tracked the ISS over a couple
> of
> days and found nothing wrong. Not wanting to continue with the ROT2 as I
> was
> convinced this was the issue I upgraded to their MD02 controller. Although
> this has its own quirks I have not suffered from the same relay related
> issue since.
>
> There are also several YouTube videos of the problem that yours is
> exhibiting https://youtu.be/GWbhez5vadM
>
> Sorry I haven?t got the cure.
>
> Best 73
> Pete G0ABI
>
>
>
> On 20 Oct 2018, at 23:37, kb2mjeff@???.??? wrote:
>
>
> Here I go answering my own questions. I think I found part of my
> problem.
> The buttons don't
> line up in the case very well and caused the rotor to hung up turning in
> one direction. That was problem number two, I fixed problem number one the
> bad relay that started all of this.To fix this temporality I have the
> board
> out of the case to test and what is now happening is that I still can't
> turn CCW. All buttons work ok except for the CCW button. I tried a reset
> thinking that I'm over some set location in the firmware that I cant go
> CCW,
> but the reset doesn't work. I replaced all 4 relays. With the rotor
> completely disconnected I can get a relay click for every rotational
> control
> button except CCW, it has to be a glitch in the firmware I can't clear, as
> I
> replaced all four relays. And no I really don't want to spend the $900
> for
> the green heron controller. Any other ideas?
> Thanks for your help...
>
> 73 Jeff kb2m
>
> -----Original Message----- From: kb2mjeff@???.???
> Sent: Saturday, October 20, 2018 3:37 PM
> To: Amsat
> Subject: [amsat-bb] AlfaSpid issue
>
> I?m back at my winter home in Florida and decided today, to work on my
> AlfaSpid rotor control box issue. I replaced two relays to fix the
> Elevation
> issue but in testing it before I replaced the other two relays I?m now
> having a problem with the azimuth that?s been working 100% until this
> point.
> When I turn on the rotor control the elevation now seems to work ok, but
> now
> the azimuth immediately goes into a clockwise rotation. No matter what I
> do
> to the controller, upon startup it starts turning CW, only way to stop is
> to
> power it down The azimuth was working fine this morning when a worked a
> couple of sat passes. Anyone have any ideas? Does anyone know where I can
> send this to have it fixed? I have no schematic, or even simple
> instructions
> on how to reset, etc.
>
> 73
>
>
> ---
> This email has been checked for viruses by AVG.
> https://www.avg.com
> _______________________________________________
> 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
>
> _______________________________________________
> 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: 7
Date: Sun, 21 Oct 2018 20:16:31 +0400
From: Jean Marc Momple <jean.marc.momple@?????.???>
To: Paul Stoetzer <n8hm@????.???>
Cc: AMSAT BB <amsat-bb@?????.???>, Burns Fisher <burns@??????.??>
Subject: Re: [amsat-bb] 2 meter interference from WiFi hub
Message-ID: <88E2EB78-2FB3-4D0C-A824-1666C48BF1E9@?????.???>
Content-Type: text/plain; charset=utf-8
Agree,
I have 2 Wi-Fi transmitting all the time in the shack, Zero-issue on alls
the Ham bands (except 2.4 Ghz).
1) As Paul said, ferrites everywhere. On all computer, speakers, mic, DC, AC
and data cables. Basically any cable in or out of any box/interface should
have one each side. Have over 100 installed.
2) Bonding the +++, all equipment or metal part in the shack should be
bonded to the main ground-bar with the thicker wire practically possible.
The ground bar should be connected to the antenna and to the ground system
with the largest possible cable (I use 35 m2 cable to the antennas and 50 m2
from the main ground bar to earth). More this protects your equipment in
case of lightning strike, sure use only one ground/bonding system (I
disconnected the mains one) and hopefully will install an isolating
transformer soon.
Doing so, the noise level in the shack is drastically reduce and
interference from the household or neighbors also.
Hope this help.
Jean Marc (3B8DU)
> On Oct 21, 2018, at 7:47 PM, Paul Stoetzer <n8hm@????.???> wrote:
>
> Try putting ferrite beads on all of your cables into and out of the
> routers, modems, etc.
>
> 73,
>
> Paul, N8HM
> On Sun, Oct 21, 2018 at 11:12 AM Burns Fisher <burns@??????.??> wrote:
>>
>> Turns out it was NOT the hub. It was the camera I had plugged into it with
>> CAT5. The camera is looking at my antennas so I can see where they are
>> rotating, but the wire runs a ways. Probably radiates nicely, and
>> conveniently right in the 2 meter band. More fooling around required...
>>
>> On Sun, Oct 21, 2018 at 9:08 AM Burns Fisher <burns@??????.??> wrote:
>>
>>> Thanks, Jerry. This one is clearly mine. I unplug it...the frequency
>>> comes back. I thought it might be beating two different channels, and I
>>> guess that's possible but the WiFi channels are 5MHz apart, although they
>>> do overlap. For now, I'll just turn it off when trying to use AO-91 :-)
>>>
>>> On Sun, Oct 21, 2018 at 12:57 AM Jerry Buxton <n0jy@?????.???> wrote:
>>>
>>>> On 10/20/2018 18:57, Burns Fisher wrote:
>>>>> So the question is: I want to replace this with another WiFi hub. Does
>>>>> anyone have good or bad recommendations for a hub that does not
>>>> generate a
>>>>> lot of RF? (When you google Wi-Fi and RF interference, you mainly get
>>>> other
>>>>> things that interfere with Wi-Fi :-))
>>>> I have an older router that caused me some problems, but it's not made
>>>> any longer so you don't have to worry about not buying one. I solved
>>>> that problem by moving it out of the attic, to a downstairs bedroom
>>>> farther away.
>>>>
>>>> But just FYI for possible future problems, I do still pick up
>>>> interference from a neighbor that gets in the way of AO-73 and AO-92 at
>>>> the lower end of their passband/Doppler shift. So it may not always be
>>>> your own!
>>>>
>>>> Jerry Buxton, N?JY
>>>>
>>>> _______________________________________________
>>>> 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
>>>>
>>>
>> _______________________________________________
>> 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
> _______________________________________________
> 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: 8
Date: Mon, 22 Oct 2018 00:10:15 +0800 (CST)
From: ??? <wmc_jx@???.???>
To: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: [amsat-bb] DSLWP-B UHF Plan
Message-ID: <6f939a42.9aa3.16697642682.Coremail.wmc_jx@???.???>
Content-Type: text/plain; charset=GBK
Hi OMs,
The following tests of DSLWP-B UHF are planned:
21 Oct 2018 22:40 to 22 Oct 2018 00:40
22 Oct 2018 23:40 to 23 Oct 2018 01:40
23 Oct 2018 17:40 to 23 Oct 2018 19:40
24 Oct 2018 18:00 to 24 Oct 2018 20:00
25 Oct 2018 18:50 to 25 Oct 2018 20:50
27 Oct 2018 05:00 to 27 Oct 2018 07:00
27 Oct 2018 17:20 to 27 Oct 2018 19:20
All time in UTC. GMSK telemetry and JT4G beacon on 435.4. GMSK
telemetry/image and JT4G repeater on 436.4.
SSDV album: http://lilacsat.hit.edu.cn/dashboard/pages_en/pics-b.html
Online JT4G telemetry forwarder:
http://lilacsat.hit.edu.cn/dashboard/pages_en/jt4g_forwarder.html
JT4G telemetry display:
http://lilacsat.hit.edu.cn/dashboard/pages_en/jt4g.html
GMSK telemetry: http://lilacsat.hit.edu.cn/dashboard/pages_en/telemetry-b.html
VY TNX & 73!
Wei BG2BHC
--
WEI Mingchuan
Research Center of Satellite Technology
Harbin Institute of Technology
mobile: +86-189-4501-5242
e-mail: wmc_jx@???.???? bg2bhc@?????.???
------------------------------
Message: 9
Date: Sun, 21 Oct 2018 13:21:01 -0400
From: <kb2mjeff@???.???>
To: "Amsat" <amsat-bb@?????.???>
Subject: Re: [amsat-bb] AlfaSpid issue FIXED
Message-ID: <C4FE019A6E32429C8A08FA0A446BB219@???????>
Content-Type: text/plain; format=flowed; charset="UTF-8";
reply-type=response
After obtaining a copy of the reset procedure all appears to be working well
in KB2M sat land again. I still have to re-attach the coax, and zero the
elevation and align to north. Too windy to go back up on the roof today, To
my sat buddies, I will be back on tomorrow afternoon. I wonder why the
documentation doesn't have the simple reset procedure in the manual, it
would of saved me the trouble of the relay replacement. If I wasn't 1/2
Polish I would be really pissed at AlfaSpid :-)
73 Jeff kb2m
-----Original Message-----
From: kb2mjeff@???.???
Sent: Sunday, October 21, 2018 11:53 AM
To: Amsat
Subject: Re: [amsat-bb] AlfaSpid issue
Someone just emailed me a reset procedure for a ROT1, does anyone happen to
have the procedure for a ROT2 ? Thanks...
73 Jeff kb2m
-----Original Message-----
From: kb2mjeff@???.???
Sent: Sunday, October 21, 2018 11:08 AM
To: Amsat
Subject: Re: [amsat-bb] AlfaSpid issue
After going over the schematic (Thanks Dimitry) I see nothing wrong with the
hardware, in fact I wonder if there was ever a hardware issue. I used the EL
cable to move the antennas CCW about 1.5 turns. When I fired it up after
replacing the relays it was stuck in CW on. I had to do this in an odd way ,
by resetting the el down 20 degrees at a time to bring the antennas back to
north. Now I get no tactile(relay click on CCW AND EL up with the cables
disconnected. All 4 relays seem good, this to me appears to be in the ROT2
firmware. Jerking around with the buttons in the setup routines in a meaning
less way will get all for relays to click, but when I go to operational mode
I?m back to CCW and EL only. Monday I?m going to try and contact someone who
represents this company in the US. Anyone have a contact for AlfaSpid in the
US? It seems there are lots of issues with this controller...
73 Jeff kb2m
I had similar problems to this over the last 18 months with the SPID ROT2
controller.
It was replaced 3 times and showed the same issue as you have intermittently
over this time. I am using MacDoppler and my supplier and the manufacturer
were convinced it was software.
On returning to the manufacturer and taking the trouble to get my concerns
and issues translated into Polish. I track numerous satellites, some one
after another and listed all of this. So I returned the controller and rotor
to Poland (at their expense) but they only tracked the ISS over a couple of
days and found nothing wrong. Not wanting to continue with the ROT2 as I was
convinced this was the issue I upgraded to their MD02 controller. Although
this has its own quirks I have not suffered from the same relay related
issue since.
There are also several YouTube videos of the problem that yours is
exhibiting https://youtu.be/GWbhez5vadM
Sorry I haven?t got the cure.
Best 73
Pete G0ABI
On 20 Oct 2018, at 23:37, kb2mjeff@???.??? wrote:
Here I go answering my own questions. I think I found part of my problem.
The buttons don't
line up in the case very well and caused the rotor to hung up turning in
one direction. That was problem number two, I fixed problem number one the
bad relay that started all of this.To fix this temporality I have the board
out of the case to test and what is now happening is that I still can't
turn CCW. All buttons work ok except for the CCW button. I tried a reset
thinking that I'm over some set location in the firmware that I cant go CCW,
but the reset doesn't work. I replaced all 4 relays. With the rotor
completely disconnected I can get a relay click for every rotational control
button except CCW, it has to be a glitch in the firmware I can't clear, as I
replaced all four relays. And no I really don't want to spend the $900 for
the green heron controller. Any other ideas?
Thanks for your help...
73 Jeff kb2m
-----Original Message----- From: kb2mjeff@???.???
Sent: Saturday, October 20, 2018 3:37 PM
To: Amsat
Subject: [amsat-bb] AlfaSpid issue
I?m back at my winter home in Florida and decided today, to work on my
AlfaSpid rotor control box issue. I replaced two relays to fix the Elevation
issue but in testing it before I replaced the other two relays I?m now
having a problem with the azimuth that?s been working 100% until this point.
When I turn on the rotor control the elevation now seems to work ok, but now
the azimuth immediately goes into a clockwise rotation. No matter what I do
to the controller, upon startup it starts turning CW, only way to stop is to
power it down The azimuth was working fine this morning when a worked a
couple of sat passes. Anyone have any ideas? Does anyone know where I can
send this to have it fixed? I have no schematic, or even simple instructions
on how to reset, etc.
73
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Message: 10
Date: Mon, 22 Oct 2018 14:44:56 +0800
From: Hans BX2ABT <hans.bx2abt@???.?????.???>
To: amsat-bb@?????.???? wb4gcs@?????.???
Subject: Re: [amsat-bb] KR-400 transformer wiring
Message-ID: <078b8ad1-e2a2-a310-ccd2-c99ae8a10336@???.?????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
Hello Jim and others on the list,
Tried various combinations today and the closest to the original
voltages was the following:
- One side of 110V connected to shorted 1 and 2.
- The other side of 110V connected to shorted 5 and 6.
A combination of 3 and 4 also worked, but voltages were 15% too high.
As I wrote, I forgot about "half the voltage, double the current", so
two primary windings should be in parallel with each other when using
110V in order to balance the current. All's well that ends well. Next
step is to see if the rotator still rotates.
73 de Hans
BX2ABT
On 10/21/18 10:24 PM, Jim Sanford wrote:
> Try this:
>
> Remove the short from 2 and 5.
>
> Connect 110V to 1 and 2.
>
> Short 3 - 6.
>
> Measure output voltage.? If too low, put power at 4 and 5.
>
>
> It is possible that this would put 3 - 5 and 4 - 6 in opposite
> phases.? In which case, you'll have ZERO output.? In this case, short
> 3 and 4 instead of 3 and 6.? Again try power at 1 and 2 first.
>
>
> Good luck, and please share results!
>
> 73,
>
> Jim
>
> wb4gcs@?????.???
>
>
>
> On 10/21/2018 9:12 AM, Hans BX2ABT wrote:
>> I got this old KR-400 azimuth rotor as a gift, but is wired for 220V
>> and I need to run it off of 110V. The transformer's wiring now looks
>> like this:
>>
>>
>> ???? |? 220V? |
>> ???? |??????? |
>> |~~~~|~~~~|?? |~~~~|~~~~|
>> 5??? 1??? 3?? 6??? 2??? 4
>> |????????????????? |
>> |__________________|
>>
>>
>> If the drawing is messed up, here is the gist of it: The primary
>> consists of two (parallel/separate) windings, one with odd, one with
>> even numbering (3-5 and 4-6) with the center of the winding named 1
>> and 2. Currently 2 and 5 are shorted and 220V comes in at 1 and 6. So
>> current flows from 1 to 5 to 2 to 6 and vice versa.
>>
>> To rewire to 110V I guess I just use any of the combination 1-3, 1-5,
>> 2-4 or 2-6. But I am just curious why the 220V wiring was done over
>> two coils, not one? Was this factory standard or has my unit been
>> modified with a different transformer?
>>
>> Once I get the control unit powered up it time to test the rotator
>> and see if it needs any maintenance (probably will, because it hasn't
>> been used for a long while).
>>
>> _______________________________________________
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>
>
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