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CX2SA > SATDIG 02.03.20 00:26l 667 Lines 23465 Bytes #999 (0) @ WW
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Today's Topics:
1. Duplexer to Dual-Band Vertical (VA3ASE)
2. Re: Foxtelem TLM (Burns Fisher)
3. Re: Duplexer to Dual-Band Vertical (Mike Thompson)
4. Re: Duplexer to Dual-Band Vertical (Paul Stoetzer)
5. HuskySat-1 telemetry w/RSP4 and ver 1.08z (Jeff )
6. Re: Yaesu-736R w/HS 736USB (Chris Thompson)
7. Re: Which object is HuskySat-1? (Alfredos (fredy) Damkalis)
8. Re: Duplexer to Dual-Band Vertical (k5oe@???.????
9. Re: Which object is HuskySat-1? (Alan)
10. Re: Which object is HuskySat-1? (Joseph B. Fitzgerald)
----------------------------------------------------------------------
Message: 1
Date: Tue, 11 Feb 2020 08:07:17 -0500
From: VA3ASE <va3ase@?????.???>
To: AMSAT-BB <amsat-bb@?????.???>
Subject: [amsat-bb] Duplexer to Dual-Band Vertical
Message-ID:
<CACgQwJ9XCa9ip+6dD_keA0Qh-Ob+=Np94VZc6Z1AfcgGK3P-aA@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Good morning,
I was chatting with a friend about his experimentation with amateur
satellites and have been pondering if his setup is "safe" for his radio. He
is running an FT-847 through a duplexer (diplexer if you want to be
pedantic) and into a dual-band vertical base antenna on his roof.
Definitely not an ideal setup, but meant to be temporary until time and
better weather allow. He has managed to make some FM contacts on AO-92 with
it.
My concern is him using a duplexer in this manner while running full
duplex. I suppose this is similar to what people must do if using an Elk
antenna. I just worry about there being enough isolation between the ports
and damaging his transceiver. Are there others using similar setups or is
this something to avoid?
73,
Alex VA3ASE
------------------------------
Message: 2
Date: Tue, 11 Feb 2020 08:44:40 -0500
From: Burns Fisher <wb1fj-bb@??????.??>
To: "Mark L. Hammond" <marklhammond@?????.???>
Cc: AMSAT-BB <AMSAT-BB@?????.???>
Subject: Re: [amsat-bb] Foxtelem TLM
Message-ID:
<CABX7KxU9uYX0WUHQ06mksC2=nj-E6t_oUqMc+yxruKBj9=85Bg@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
What version of FoxTelem?
On Mon, Feb 10, 2020 at 8:46 PM Mark L. Hammond via AMSAT-BB <
amsat-bb@?????.???> wrote:
> Hi Pete, I think that error comes from having a satellite showing on a tab,
> but there is no data for it yet (not yet launched). You can either ignore
> the message or remove the satellite using the Spacecraft menu.
>
> Even with the error, the other data should be downloaded and uncompressed.
>
> Mark
> N8MH
>
> On Mon, Feb 10, 2020 at 8:26 PM Pete vk2pet <vk2pet@?????????.??.???>
> wrote:
>
> > Good Morning Mark & Alan,
> >
> > Thanks for the replys.
> >
> > Yes it was an embedded pic, I'm only new on this group, so I will learn.
> >
> > More to the story, when I update the fotelem via 'fetch server data' in
> > the menu, the computer comes up with
> >
> > *ERROOR could not uncompress the server data*
> >
> > *Check if the download URL is correct.*
> >
> >
> > Then some JAVA jisberish under that.
> >
> >
> > This computer isn't on the web all the time, so I have to hotpot into to
> > get TLE and the other updates I need. hence the question of the TLE
> website.
> >
> > 73's
> >
> > Pete
> >
> > vk2pet
> >
> >
> > On 11/02/2020 12:17 pm, Mark L. Hammond wrote:
> >
> > Hi Pete,
> >
> > I didn't catch what you're seeing. Did you try to embed a picture? That
> > doesn't work on the BB.
> >
> > 73,
> >
> > Mark N8MH
> >
> > At 10:42 AM 2/11/2020 +1100, Pete \(Vk2pet\) via AMSAT-BB wrote:
> >
> > Morning All, Currently I???m getting the below message. My server data
> URL
> > is Http://amsat.org/tlm <http://amsat.org/tlm> Is this correct? 73 Pete
> > Vk2pet Sent from my ifail (it can be stuck to me at times) This
> > email/message could be sent on behalf of a community organization. If you
> > got this email/message by mistake please delete & let myself know my
> email,
> > phone or sms on 0428 293 683. Regards Pete
> > _______________________________________________ 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
> >
> > --
> Mark L. Hammond [N8MH]
> _______________________________________________
> 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: Tue, 11 Feb 2020 09:13:01 -0600
From: Mike Thompson <zryder94@?????.???>
To: VA3ASE <va3ase@?????.???>
Cc: AMSAT-BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Duplexer to Dual-Band Vertical
Message-ID:
<CAGD5MUGuJ3NPWR=CaCL=6cDGA8EOm7KdQaZfSm8beUDniboiOQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
It?s not ideal, but there are plenty of worse things that one can do. Last
time I tested some off the shelf diplexers on my former employer?s VNA, I
found them to have 80-90db of isolation. That?s not bad.
On Tue, Feb 11, 2020 at 7:08 AM VA3ASE via AMSAT-BB <amsat-bb@?????.???>
wrote:
> Good morning,
>
> I was chatting with a friend about his experimentation with amateur
> satellites and have been pondering if his setup is "safe" for his radio. He
> is running an FT-847 through a duplexer (diplexer if you want to be
> pedantic) and into a dual-band vertical base antenna on his roof.
> Definitely not an ideal setup, but meant to be temporary until time and
> better weather allow. He has managed to make some FM contacts on AO-92 with
> it.
>
> My concern is him using a duplexer in this manner while running full
> duplex. I suppose this is similar to what people must do if using an Elk
> antenna. I just worry about there being enough isolation between the ports
> and damaging his transceiver. Are there others using similar setups or is
> this something to avoid?
>
> 73,
> Alex VA3ASE
> _______________________________________________
> 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: Tue, 11 Feb 2020 10:21:54 -0500
From: Paul Stoetzer <n8hm@????.???>
To: Mike Thompson <zryder94@?????.???>
Cc: VA3ASE <va3ase@?????.???>, AMSAT-BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Duplexer to Dual-Band Vertical
Message-ID:
<CABzOSOr0D4CdL7mAR5A_McGccLxUh=+bNG5ZhStNvTRz_ymPDA@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Even at 100 watts output and 60 dB of isolation (the rated isolation of off
the shelf diplexers, though as you mention, they may be better), the
maximum amount of transmit power that might possibly get back into the
radio is -10 dBm or 100 uW (100 watts = 50 dBm - 60 dB of isolation = -10
dBm). That won't do any damage. Cheap off-the-shelf ATSC tuners are rated
to handle something around -5 dBm for those living very close to extremely
powerful television transmitters.
73,
Paul, N8HM
On Tue, Feb 11, 2020 at 10:13 AM Mike Thompson via AMSAT-BB <
amsat-bb@?????.???> wrote:
> It?s not ideal, but there are plenty of worse things that one can do. Last
> time I tested some off the shelf diplexers on my former employer?s VNA, I
> found them to have 80-90db of isolation. That?s not bad.
>
> On Tue, Feb 11, 2020 at 7:08 AM VA3ASE via AMSAT-BB <amsat-bb@?????.???>
> wrote:
>
> > Good morning,
> >
> > I was chatting with a friend about his experimentation with amateur
> > satellites and have been pondering if his setup is "safe" for his radio.
> He
> > is running an FT-847 through a duplexer (diplexer if you want to be
> > pedantic) and into a dual-band vertical base antenna on his roof.
> > Definitely not an ideal setup, but meant to be temporary until time and
> > better weather allow. He has managed to make some FM contacts on AO-92
> with
> > it.
> >
> > My concern is him using a duplexer in this manner while running full
> > duplex. I suppose this is similar to what people must do if using an Elk
> > antenna. I just worry about there being enough isolation between the
> ports
> > and damaging his transceiver. Are there others using similar setups or is
> > this something to avoid?
> >
> > 73,
> > Alex VA3ASE
> > _______________________________________________
> > 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: 5
Date: Tue, 11 Feb 2020 10:30:20 -0500
From: "Jeff " <kb2mjeff@???.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] HuskySat-1 telemetry w/RSP4 and ver 1.08z
Message-ID: <181301d5e0f0$2cab14c0$86013e40$@???.???>
Content-Type: text/plain; charset="us-ascii"
Anyone receiving HuskySat-1 telemetry packets with an RSP4 RTL SDR setup
running ver 1.08z
73 Jeff kb2m
------------------------------
Message: 6
Date: Tue, 11 Feb 2020 10:33:01 -0500
From: Chris Thompson <g0kla@????.???>
To: Mike Lucas <documike@???????.???>
Cc: AMSAT <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Yaesu-736R w/HS 736USB
Message-ID:
<CAJOf0+tmjUtZSm60fEOJzmTfcto40z8a5pDFihMHmJP0jKKdoA@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Hi Mike,
It's never been able to reverse the band split from CAT commands. If you
are sitting at the radio and operating it's not a big issue. You just take
it out of CAT, reverse the split then put it back into CAT mode. If you are
operating in an automated way through a sat like FalconSat-3 then you have
to dedicate it to one split direction. Mine sits monitoring 70cm and
transmits to FalconSat-3 on 2m.
I suppose it might be possible if you don't need to transmit to have it in
normal mode (not sat mode) and then it will tune to the needed bands.
That might work for monitoring telemetry on more than one band, though I
have not tried it. I use SDRs for that.
73
Chris
On Sun, Feb 9, 2020 at 7:08 PM Mike Lucas via AMSAT-BB <amsat-bb@?????.???>
wrote:
> I hate to give up on my trusty 736R I've used for years but. I got the
> 736USB for CAT interface and it works fine except for one thing. I doesn't
> want to do reverse band splits with the CAT.
>
> It's documented in the HS 736USB sheet that it may not be able to perform
> that function, so I'm wonder if anyone by chance has figured out a work
> around?
>
> Thanks!
>
> Mike N7ASZ
>
> _______________________________________________
> 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
>
--
Chris E. Thompson
chrisethompson@?????.???
g0kla@????.???
------------------------------
Message: 7
Date: Tue, 11 Feb 2020 20:08:59 +0200
From: "Alfredos (fredy) Damkalis" <fredy@?????.??>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] Which object is HuskySat-1?
Message-ID: <af08d28c-53de-d887-28b2-6458395bd54d@?????.??>
Content-Type: text/plain; charset=utf-8
It looks like that OBJECT J (COSPAR ID 20071J) is moved from NORAD ID
45132 to 45119. OBJECT J with NORAD ID 45132 hasn't any TLE update for
the last couple of days, in contrast the new one (45119) gets updated.
Still the old TLE from 45132 describe well the orbit of HuskySat-1 but
it looks like that soon will not.
73,
fredy
On 2/7/20 9:22 PM, Bob via AMSAT-BB wrote:
> As time has gone by, the 071G TLE was requiring more manual Doppler
> correction here, despite automatic Doppler Correction from SatPC32. I had
> to adjust it manually another +/- 400 Hz through the course of an orbit.
>
> Today after changing to 071J, the fit is MUCH better, only +/- 100 Hz
> manual correction needed over the pass at ~19:10Z.
>
> Getting closer for sure!
>
> 73, Bob, WB4SON
>
>
>
> On Fri, Feb 7, 2020 at 1:25 PM Nico Janssen via AMSAT-BB
<amsat-bb@?????.???>
> wrote:
>
>>
>> With new TLEs published new doppler measurements now show
>> that HuskySat 1 is actually object 45132 (2019-071J).
>> Downlink frequency: 435.7997 MHz.
>>
>> 73,
>> Nico PA0DLO
>>
>> On 07-02-20 15:15, Joseph B. Fitzgerald via AMSAT-BB wrote:
>>> Initially it looked like object 2019-071G was HuskySat-1, but our
>> friends at the 18th Space Control Squadron published data on additional
>> objects in recent days, and there is considerable evidence suggesting that
>> HuskySat-1 is actually one of those instead.
>>>
>>> Element sets for objects 2019-071H and 2019-071J are now distributed in
>> nasabare.txt as candidates for the "Real HuskySat-1".
>>>
>>>
>>> de KM1P Joe
>>> _______________________________________________
>>> 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: 8
Date: Tue, 11 Feb 2020 12:35:44 -0600
From: <k5oe@???.???>
To: <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Duplexer to Dual-Band Vertical
Message-ID: <016c01d5e10a$12ace160$3806a420$@???.???>
Content-Type: text/plain; charset="us-ascii"
This can be done with a pair of inexpensive du/diplexers (e.g., Comet, MFJ,
etc) and a coax tee. From the antenna, on the coax to/in the shack, insert
a coax tee and from the two other ports install a diplexer, one from common
to VHF and the other from common to UHF (leave the other port open, or if
concerned you can put a 50 Ohm load on it... I never did / had to). This
has a slight mismatch, but is tolerable.
73,
Jerry, K5OE
-----Original Message-----
From: AMSAT-BB <amsat-bb-bounces@?????.???> On Behalf Of VA3ASE via AMSAT-BB
Sent: Tuesday, February 11, 2020 7:07 AM
To: AMSAT-BB <amsat-bb@?????.???>
Subject: [amsat-bb] Duplexer to Dual-Band Vertical
Good morning,
I was chatting with a friend about his experimentation with amateur
satellites and have been pondering if his setup is "safe" for his radio. He
is running an FT-847 through a duplexer (diplexer if you want to be
pedantic) and into a dual-band vertical base antenna on his roof.
Definitely not an ideal setup, but meant to be temporary until time and
better weather allow. He has managed to make some FM contacts on AO-92 with
it.
My concern is him using a duplexer in this manner while running full duplex.
I suppose this is similar to what people must do if using an Elk antenna. I
just worry about there being enough isolation between the ports and damaging
his transceiver. Are there others using similar setups or is this something
to avoid?
73,
Alex VA3ASE
_______________________________________________
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: 9
Date: Tue, 11 Feb 2020 12:44:06 -0600
From: "Alan" <wa4sca@?????.???>
To: "AMSAT-BB" <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Which object is HuskySat-1?
Message-ID: <000401d5e10b$3de8e260$b9baa720$@?????.???>
Content-Type: text/plain; charset="us-ascii"
Freddy,
Yes, it looks like they are changing the catalog number of object J. 45119
almost perfectly overlays the 45132 Keps, and they are much more recent.
Testing today has given "hands off" tuning on multiple passes.
73,
Alan
WA4SCA
<-----Original Message-----
<From: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? On Behalf Of
<Alfredos (fredy) Damkalis via AMSAT-BB
<Sent: Tuesday, February 11, 2020 12:09 PM
<To: amsat-bb@?????.???
<Subject: Re: [amsat-bb] Which object is HuskySat-1?
<
<It looks like that OBJECT J (COSPAR ID 20071J) is moved from NORAD ID
<45132 to 45119. OBJECT J with NORAD ID 45132 hasn't any TLE update for
<the last couple of days, in contrast the new one (45119) gets updated.
<
<Still the old TLE from 45132 describe well the orbit of HuskySat-1 but
<it looks like that soon will not.
<
<73,
<fredy
<
<On 2/7/20 9:22 PM, Bob via AMSAT-BB wrote:
<> As time has gone by, the 071G TLE was requiring more manual Doppler
<> correction here, despite automatic Doppler Correction from SatPC32. I
had
<> to adjust it manually another +/- 400 Hz through the course of an orbit.
<>
<> Today after changing to 071J, the fit is MUCH better, only +/- 100 Hz
<> manual correction needed over the pass at ~19:10Z.
<>
<> Getting closer for sure!
<>
<> 73, Bob, WB4SON
<>
<>
<>
<> On Fri, Feb 7, 2020 at 1:25 PM Nico Janssen via AMSAT-BB <amsat-
<bb@?????.???>
<> wrote:
<>
<>>
<>> With new TLEs published new doppler measurements now show
<>> that HuskySat 1 is actually object 45132 (2019-071J).
<>> Downlink frequency: 435.7997 MHz.
<>>
<>> 73,
<>> Nico PA0DLO
<>>
<>> On 07-02-20 15:15, Joseph B. Fitzgerald via AMSAT-BB wrote:
<>>> Initially it looked like object 2019-071G was HuskySat-1, but our
<>> friends at the 18th Space Control Squadron published data on additional
<>> objects in recent days, and there is considerable evidence suggesting
that
<>> HuskySat-1 is actually one of those instead.
<>>>
<>>> Element sets for objects 2019-071H and 2019-071J are now distributed in
<>> nasabare.txt as candidates for the "Real HuskySat-1".
<>>>
<>>>
<>>> de KM1P Joe
<>>> _______________________________________________
<>>> 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
------------------------------
Message: 10
Date: Tue, 11 Feb 2020 18:44:34 +0000
From: "Joseph B. Fitzgerald" <jfitzgerald@????.???.???>
To: "Alfredos (fredy) Damkalis via AMSAT-BB" <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Which object is HuskySat-1?
Message-ID:
<BN6PR22MB0083B3EB72EEE9764262DB0A87180@?????????????.????????.????.???????.??
?>
Content-Type: text/plain; charset="iso-8859-1"
It is a weird situation ... even orbital guru T.S. Kelso scratching his head
over it. See comments on his Twitter account.
https://twitter.com/tskelso?lang=en
de KM1P Joe
------------------------------
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 40
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