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CX2SA > SATDIG 05.07.11 19:46l 923 Lines 30552 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Active FM Sats (iamsavedbygrace@x.xxxx
2. ARISSat-1 Deployment Possibly Delayed (Clint Bradford)
3. Re: Active FM Sats (Dave Webb KB1PVH)
4. Re: Active FM Sats (Dee)
5. Re: G-5400/5500 Cross-Boom U-Bolts (Dads)
6. AO-27 last pass (Kevin Deane)
7. Re: Active FM Sats (i8cvs)
8. Re: Active FM Sats (Gordon JC Pearce)
9. Re: Active FM Sats (Pedro A. Perez)
10. Linear Sats (Kevin Deane)
11. Re: Active FM Sats (i8cvs)
12. Call for Papers--2011 ARRL/TAPR Digital
CommunicationsConference (Ford, Steve, WB8IMY)
13. Re: Non-Technical Question (Dee)
14. Re: Active FM Sats (Patrick STODDARD (WD9EWK/VA7EWK))
15. Re: VUCC Satellite #217 (Patrick STODDARD (WD9EWK/VA7EWK))
16. question about the Space Station (George and Cheryl Abbott)
17. Re: Active FM Sats (John Geiger)
18. Re: ARISSat-1/RadioSkaf-V Deployment date? (R Oler)
----------------------------------------------------------------------
Message: 1
Date: Sun, 3 Jul 2011 17:18:02 -0400 (EDT)
From: iamsavedbygrace@x.xxx
Subject: [amsat-bb] Active FM Sats
To: amsat-bb@xxxxx.xxx
Message-ID:
<1970229818.2144587.1309727882892.JavaMail.root@xxxx.xxxxxx.xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
I have been out of commission for about a year. What FM SATS are in
operation now? Anyone?
WA7HQD
Lee Ernstrom
Syracuse, Utah DN31xb
------------------------------
Message: 2
Date: Mon, 04 Jul 2011 12:40:15 -0700
From: Clint Bradford <clintbradford@xxx.xxx>
Subject: [amsat-bb] ARISSat-1 Deployment Possibly Delayed
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <CB451F7F-4B85-40E4-BC11-5A22AD797CF9@xxx.xxx>
Content-Type: text/plain; charset=windows-1252
FROM the press office of Roscosmos:
Alexander Samokutiaev, flight engineer of the International Space Station?s
expedition 28, informed about the planning for the upcoming Russian EVA in
his blog in Roscosmos web.
According to Russian cosmonaut, the EVA is slated for August, pending the
launch of the shuttle scheduled for July 8.
Alexander will work outside the ISS with his colleague Sergey Volkov. The
cosmonauts are to perform several ISS RS refurbishing tasks, as well as to
launch small satellite Kedr.
Russian cosmonauts onboard the International Space Station switched on small
spacecraft Kedr on April 12, in order to commemorate the jubilee of Yury
Gagarin?s mission.
Small spacecraft Kedr developed under the RadioSkaf experiment bears the
name adopted by Yu.A. Gagarin call sign in his historical flight, namely
Kedr. The satellite?s signal will be transmitted at radio amateur frequency
of 145.95 MHz. Kedr has radio amateur call sign RS1S.
RadioSkaf is implemented in the framework of UNESCO?s student space
education program.
Kedr will transmit different signals, images, including the talks of famous
Russian scientist Kostantin Tsiolkovsky, rocket Chief Designer Sergey
Korolev conversation with the first cosmonaut during his 108-min historical
mission, and famous Gagarin?s ?Go!? (Poekhali!), of course.
Roscosmos PAO
------------------------------
Message: 3
Date: Mon, 4 Jul 2011 15:56:38 -0400
From: Dave Webb KB1PVH <kb1pvh@xxxxx.xxx>
Subject: [amsat-bb] Re: Active FM Sats
To: iamsavedbygrace@x.xxx
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<CAEMY9FcMHAj+itQ9x4eJRjF30svs+VL2f-0DC476s_YZj-5-NQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Welcome back!
AO-27, AO-51, SO-50 for now.
Dave - KB1PVH
Sent from my Verizon Wireless DROID X
On Jul 4, 2011 3:44 PM, <iamsavedbygrace@x.xxx> wrote:
> I have been out of commission for about a year. What FM SATS are in
operation now? Anyone?
>
>
> WA7HQD
> Lee Ernstrom
> Syracuse, Utah DN31xb
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 4
Date: Mon, 04 Jul 2011 16:05:25 -0400
From: Dee <morsesat@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Active FM Sats
To: iamsavedbygrace@x.xxx
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Message-ID: <001501cc3a85$b6adda10$24098e30$@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Lee,
Please go to the AMSAT website below and follow the left side to Satellite
information. You can click to see all active satellites-status- and future
sats there.
Our site has some of the most up-to-date info.
Glad you are back into this end of the hobby and see you on the birds...
73,
Dee, NB2F
http://www.amsat.org/amsat-new/index.php
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of iamsavedbygrace@x.xxx
Sent: Sunday, July 03, 2011 5:18 PM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Active FM Sats
I have been out of commission for about a year. What FM SATS are in
operation now? Anyone?
WA7HQD
Lee Ernstrom
Syracuse, Utah DN31xb
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 5
Date: Mon, 4 Jul 2011 16:31:58 -0500
From: "Dads" <w0sat@xxx.xxx>
Subject: [amsat-bb] Re: G-5400/5500 Cross-Boom U-Bolts
To: <amsat-bb@xxxxx.xxx>
Message-ID: <SNT125-DS13444B10BD0AC934D2BD98E45C0@xxx.xxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=response
-----Original Message-----
From: Dads
Sent: Sunday, July 03, 2011 11:05 PM
To: i8cvs
Subject: Re: [amsat-bb] Re: G-5400/5500 Cross-Boom U-Bolts
Hi; The part numbers are 56 S8000223 57 S8000224
50 and 51housing screw and washers S8000220
Jerry w0sat
-----Original Message-----
From: i8cvs
Sent: Sunday, July 03, 2011 9:38 PM
To: Jim Jerzycke ; Amsat - BBs
Subject: [amsat-bb] Re: G-5400/5500 Cross-Boom U-Bolts
----- Original Message -----
From: "Jim Jerzycke" <kq6ea@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Sunday, July 03, 2011 9:19 PM
Subject: [amsat-bb] G-5400/5500 Cross-Boom U-Bolts
> Greetings, all
>
> There are no part numbers for the clamps in the manuals I have for the
> rotors.
>
> 73, Jim KQ6EA
Hi Jim, KQ6EA
The U bolts is Part Number 56
The clamps are Part number 57
The plane washer is Part Number 58
The lock washer is Part number 59
The bolt in part number 60
The above Part Number and location comes from the manual of Major
Part List for the old KR-500 Elevation Rotator from Ken Pro wich
mechanically are the same size for the G5400 and G5500 Cross Boom
U-Bolts
73" de
i8CVS Domenico
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 6
Date: Mon, 4 Jul 2011 15:46:44 -0700
From: Kevin Deane <summit496@xxxx.xxx>
Subject: [amsat-bb] AO-27 last pass
To: <amsat-bb@xxxxx.xxx>
Message-ID: <COL107-W45002464F972B90D3A072E835C0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Sorry about that people......QRM
Kevin
KF7MYK
------------------------------
Message: 7
Date: Tue, 5 Jul 2011 06:07:47 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: Active FM Sats
To: <iamsavedbygrace@x.xxx>, "Amsat - BBs" <amsat-bb@xxxxx.xxx>
Message-ID: <004d01cc3ac9$197d95c0$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: <iamsavedbygrace@x.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Sunday, July 03, 2011 11:18 PM
Subject: [amsat-bb] Active FM Sats
> I have been out of commission for about a year. What FM SATS are in
operation now? Anyone?
>
>
> WA7HQD
> Lee Ernstrom
> Syracuse, Utah DN31xb
Hi Lee, WA7HQD
Instead to go to a single channel FM satellites actually operating
AO-27, AO-51, SO-50 please try on the linear transponder satellites
VO-52, FO-29 and OSCAR-7 plenty of room fom many CW and
SSB QSO's at the same time.
VO-52 has actually the strongest down link signal between 145. 875 to
145.925 MHz using the indian linear transponder continuously operating
24/hours with no limitations due of ecliples.
FO-29 is also working very well in Mode-J and OSCAR-7 in Mode A
and Mode-B do permit nice QSO's between USA and Europe.
Why to vaste time with the FM satellites for very small on a single channel
to exchange only call letters and locators at most into a terrific QRM ?
73" de
i8CVS Domenico
------------------------------
Message: 8
Date: Tue, 5 Jul 2011 07:45:34 +0100
From: Gordon JC Pearce <gordonjcp@xxxx.xxx>
Subject: [amsat-bb] Re: Active FM Sats
To: amsat-bb@xxxxx.xxx
Message-ID: <20110705074534.1edd5f18.gordonjcp@xxxx.xxx>
Content-Type: text/plain; charset=US-ASCII
On Tue, 5 Jul 2011 06:07:47 +0200
"i8cvs" <domenico.i8cvs@xxx.xx> wrote:
> Why to vaste time with the FM satellites for very small on a single channel
> to exchange only call letters and locators at most into a terrific QRM ?
>
Because everyone has the gear to work FM satellites.
Show me an all-mode HT that retails for the same sort of price and is the
same sort of size as an FM HT and I might be interested. Otherwise, to get
UHF and VHF SSB I'm stuck with an inconveniently large radio which is only
really useful for the twenty minutes a day that a satellite is overhead.
Not to mention the difficulty involved in tuning the radio and aiming the
antenna. Doesn't the Doppler shift mean you need to constantly retune? How
do you manage to do that, key the mike and point the aerial, *and* have
enough brainpower left to make a contact?
Gordon MM0YEQ
------------------------------
Message: 9
Date: Tue, 5 Jul 2011 12:42:20 +0200
From: "Pedro A. Perez" <eb4dka@xxxxxxxx.xx>
Subject: [amsat-bb] Re: Active FM Sats
To: <amsat-bb@xxxxx.xxx>
Message-ID: <EB64AA1420C140B8B3EC38F4E1B58200@xxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
There is an easy way to work linear birds from mobile. All you need is a
single band SSB mobile radio (FT-857, FT-897, etc), a portable SSB receiver
(TH-F6, etc.) and very simple antennas for the downlink (like the CJU for
mode J, 1/4 whip for mode B, etc):
http://eb4dka.laserenadigital.com/Amateur%20Satellite%20Articles/FO29_MOBILE.p
df
http://eb4dka.laserenadigital.com/Videos%20AMSAT/VIDEO_EB4DKA%20via%20FO29%20d
esde%20movil.html
I?ve made hundred of QSOs via FO-29 using this little station. It also works
nice on FM birds.
Best 73s
Pedro EB4DKA
http://eb4dka.laserenadigital.com
> Show me an all-mode HT that retails for the same sort of price and is the
> same sort of size as an FM HT and I might be interested. Otherwise, to
> get UHF and VHF SSB I'm stuck with an inconveniently large radio which is
> only really useful for the twenty minutes a day that a satellite is
> overhead.
>
> Not to mention the difficulty involved in tuning the radio and aiming the
> antenna. Doesn't the Doppler shift mean you need to constantly retune?
> How do you manage to do that, key the mike and point the aerial, *and*
> have enough brainpower left to make a contact?
>
> Gordon MM0YEQ
------------------------------
Message: 10
Date: Tue, 5 Jul 2011 04:45:57 -0700
From: Kevin Deane <summit496@xxxx.xxx>
Subject: [amsat-bb] Linear Sats
To: <amsat-bb@xxxxx.xxx>
Message-ID: <COL107-W33F01ACCE718B3732BE004835F0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
>Show me an all-mode HT that retails for the same sort of price and is the
same sort of size as an FM HT and I might be interested. Otherwise, to get
>UHF and VHF SSB I'm stuck with an inconveniently large radio which is only
really useful for the twenty minutes a day that a satellite is overhead.
>Not to mention the difficulty involved in tuning the radio and aiming the
antenna. Doesn't the Doppler shift mean you need to constantly retune? >How
do you manage to do that, key the mike and point the aerial, *and* have
enough brainpower left to make a contact?
I would love the opportunity to have the "difficulty" of tuning in the big
boy sats! I would also find pletny of uses besides the sats for a radio of
that caliber...And one of these days I will gladly spend the money on the
biggest badest radio I can find and then I will build the biggest bestest
tower ever with a rediculous amount of elements and rotater dealy bob!!!
So there!
Kevin
KF7MYK
------------------------------
Message: 11
Date: Tue, 5 Jul 2011 13:48:44 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: Active FM Sats
To: "Gordon JC Pearce" <gordonjcp@xxxx.xxx>, "Amsat - BBs"
<amsat-bb@xxxxx.xxx>
Message-ID: <000001cc3b09$bfee1f20$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: "Gordon JC Pearce" <gordonjcp@xxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Tuesday, July 05, 2011 8:45 AM
Subject: [amsat-bb] Re: Active FM Sats
> On Tue, 5 Jul 2011 06:07:47 +0200
> "i8cvs" <domenico.i8cvs@xxx.xx> wrote:
>
> > Why to vaste time with the FM satellites for very small on a single
> > channel to exchange only call letters and locators at most into a
> > terrific QRM ?
> >
>
> Because everyone has the gear to work FM satellites.
>
> Gordon MM0YEQ
> _______________________________________________
Hi Gordon, MM0YEQ
Everyone actually has a gear to work FM satellites because AMSAT
in the last few years has built a lot of FM satellites only to encurage the
japanese industry to produce FM rigs.
Compare the early years 1970 to 1980 when OSCAR-6, OSCAR,7 and
OSCAR-8 were alive and well and you will realize that no one owned
a FM rig for satellite use but only homebrewed CW and SSB rigs and
that epoch time was a real satellite epoch time.
73" de
i8CVS Domenico
------------------------------
Message: 12
Date: Tue, 5 Jul 2011 10:01:51 -0400
From: "Ford, Steve, WB8IMY" <sford@xxxx.xxx>
Subject: [amsat-bb] Call for Papers--2011 ARRL/TAPR Digital
CommunicationsConference
To: "RTTY Reflector" <rtty@xxxxxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>,
<vhf@xxxx.xxxxxxxx.xxx>, <psk31@xxxxxxx.xx.xxx.xx>,
<digitalradio@xxxxxxxxxxx.xxx>
Message-ID:
<145372871023544E98881538F29B1DFC033CFA24@xxxxxxxx.xxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Technical papers are solicited for presentation at the 30th Annual ARRL
and TAPR Digital Communications Conference to be held September 16-18,
2011 in Baltimore, Maryland. These papers will also be published in the
Conference Proceedings (you do NOT need to attend the conference to have
your paper included in the Proceedings). The submission deadline is July
31, 2011. Please send papers to:
Maty Weinberg
ARRL
225 Main St
Newington, CT 06111
or you can make your submission via e-mail to: maty@xxxx.xxx
Papers will be published exactly as submitted and authors will retain
all rights.
73 . . . Steve, WB8IMY
ARRL
------------------------------
Message: 13
Date: Tue, 05 Jul 2011 11:37:46 -0400
From: Dee <morsesat@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Non-Technical Question
To: "'Martha'" <martha@xxxxx.xxx>, Amsat BB <amsat-bb@xxxxx.xxx>
Cc: andyschnepf@xxx.xxx
Message-ID: <002401cc3b29$7d77c180$78674480$@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
See below>>
Martha, sounds technical to me.(????)
From: martha591@xxxxx.xxx [mailto:martha591@xxxxx.xxxx On Behalf Of Martha
Sent: Tuesday, July 05, 2011 11:10 AM
To: Dee
Subject: Fwd: Non-Technical Question
Dee - Would you answer this.
---------- Forwarded message ----------
From: AMSAT Website <www@xxxxx.xxx>
Date: Mon, Jul 4, 2011 at 12:16 AM
Subject: Non-Technical Question
To: martha@xxxxx.xxx
This message originated from the AMSAT website
Sender: Andy Schnepf Email: andyschnepf@xxx.xxx
Host: 76-232-206-200.lightspeed.irvnca.sbcglobal.net
Subject: Non-Technical Question
>>>>>>>>>>>>>>>>>>>>>>>>>>
Andy,
If you are looking at a pass Say AO-51, and it says it will start at 09:50
UTC-This is the time in UTC the pass will begin at YOUR location in UTC. I
am not sure of what you are looking at to get a prediction, however, if you
are using SATPC32 and you have setup the observer as yourself at the
location you list, you will have the correct times UTC for your location.
The program can be setup to show in local time or UTC. 99.9% of hams learn
what their local time is with reference to UTC since all contacts and space
referenced items are in UTC. Yes, your time would be 7hrs difference on the
west coast.
Good luck on tracking the birds-don't forget to update your keplerian data
to keep the positions of the satellites current.
73,
Dee, NB2F
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Message:
I have aquestion about the AOS Acquition of Signal UTC time.
Is the UTC time that is stated for a predicted pass, the local time that the
bird will pass over my position?
Or do I have to subtract 7 hours from the UTC time to get the correct time
the bird will pass over my position in Riverside, CA? Lattitude 33.8959
North Longitude 116.5416 West
Phone Number: 951 314 5077 <tel:951%20314%205077> Best Time to
Call: 09:00 am Pacific
(end of message)
Problems with this message? Email to w2gps@xxxxx.xxx
--
73- Martha
------------------------------
Message: 14
Date: Tue, 5 Jul 2011 08:43:01 -0700
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] Re: Active FM Sats
To: amsat-bb@xxxxx.xxx
Message-ID:
<CAN6TEUdME0MTVJPFaY4Ux6EKH=CPGBNd4Abj8ugHW4AYkdogkA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi!
> Show me an all-mode HT that retails for the same sort of price and is the
> same sort of size as an FM HT and I might be interested. ?Otherwise, to
> get UHF and VHF SSB I'm stuck with an inconveniently large radio which
> is only really useful for the twenty minutes a day that a satellite is
> overhead.
An all-mode HT.... doesn't exist at this time. Probably the closest you get
in an HT would be a TH-F6/TH-F7 with its all-mode receiver, but still an FM
transmitter. You could attempt transmitting CW by keying that transmitter,
but it's not ideal with the 5 kHz tuning steps at FM on that radio (SSB
tuning steps on a TH-F6/TH-F7 can go as small as 33 Hz) and no
provision for computer control. Otherwise, an FT-817 gets close to the
HT size, is an all-mode transceiver at HF and 6m as well as 2m and
70cm, and would qualify as a radio that can be used more than "twenty
minutes a day that a satellite is overhead." It does cost more than an
FM HT, but FT-817s should be available on the secondhand market
as they have been in production for a decade. Even two FT-817s as
a portable all-mode full-duplex satellite station are not what I - or
many - would consider "inconveniently large". If you prefer computer
control, the 817s have Yaesu's CAT port to allow for that.
> Not to mention the difficulty involved in tuning the radio and aiming the
> antenna. ?Doesn't the Doppler shift mean you need to constantly
> retune? ?How do you manage to do that, key the mike and point the
> aerial, *and* have enough brainpower left to make a contact?
You are having to make minor adjustments to your frequency - or
frequencies - when working SSB or CW via satellite. If you follow the
so-called One True Rule, you're making the adjustments to one of
the two frequencies (usually the higher of the two frequencies).
Everyone had to work SSB/CW via satellite this way in the past,
before the advent of computer-controlled stations, and it is still an
option today even if some (many?) discourage it.
If you've worked FM satellites, you already know about the "key the
mike and point the aerial" part. Then just focus on the QSO in
progress. Don't try to remember everyone you worked - leave that
on an audio recorder, or recorder app for a mobile phone or iPod
type of device or laptop/netbook, and play it back later to update
your log.
Pedro EB4DKA has posted a lot of useful information for working
SSB via satellite. I read the writeups and watched the videos as I
started out on the SSB birds. I don't operate using a mobile setup
like Pedro does, but with one directional antenna (an Elk 2m/70cm
log periodic) through a diplexer to my two-radio setup. I've
uploaded some videos working those satellites at:
http://www.youtube.com/va7ewk
I used both of my FT-817NDs on the SSB passes shown in these
videos, but on occasion swap out the 817 I use as the receiver
and put my TH-F6A in its place.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 15
Date: Tue, 5 Jul 2011 08:47:36 -0700
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] Re: VUCC Satellite #217
To: amsat-bb@xxxxx.xxx
Message-ID:
<CAN6TEUfi5NJ+oq-seJiUr2uxdPJ_VJV_G27h8jo8yekJb6XrAg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi Jeff!
> After 159 days since submitting the paperwork and couple follow up e-mails,
> I finally received my VUCC Satellite award.
Congratulations!
>?For some reason, I keep
> thinking I should've received some paperwork with the certificate and
> stickers. ?I thought they were suppose to have a copy of the grids already
> worked on a paper format. ?Maybe I'm thinking of something else. ?If anybody
> knows this to be true, please let me know. ?Maybe this wait isn't quite over
> yet.
If you are using LOTW and have defined a VUCC "account" in LOTW, that
will be the place you can go to see which grids you have on your award. I
never received any paperwork other than the certificate when I got mine in
May. That might be the reason why you didn't get any other paperwork.
Or it could have been an oversight by someone at ARRL HQ.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 16
Date: Tue, 5 Jul 2011 12:08:57 -0400
From: "George and Cheryl Abbott" <ka1ajf@xxx.xxx>
Subject: [amsat-bb] question about the Space Station
To: "AMSAT BB" <amsat-bb@xxxxx.xxx>
Message-ID: <2989CF8DFD3A4BB08AD7C10AD9A9467F@xxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi All:I observed the Space Station pass over this location(Hopkinton,RI) a
couple of nights ago.The sky was relatively clear at the time.However,I
observed a slight wobble( >.05 degrees ) as it passed from NNW to SSE.I have
observed multiple Space Shuttle passes and I have never observed any wobbles
in its orbit.Is the Space Station having any troubles with its
gyroscopes?Could atmospheric conditions or the way it reflects sunlight
explain my observation?Comments welcome!
------------------------------
Message: 17
Date: Tue, 5 Jul 2011 11:10:45 -0500
From: John Geiger <aa5jg@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Active FM Sats
To: amsat-bb@xxxxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<CAFq43LaibmrE2NRK91OrunM9GoNhvv00Mn4qi8V0QhyDS=3f3w@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Belcom used to make (and might still make) all mode HTs that cover a wide
variety of bands. Santec imported one as the LS202 in the 80s, it was an
all mode 2 meter HT. I found one at a hamfest with 2 new battery packs a
couple of years ago for $80! AEA imported the 10 meter version (and the 6m
version but that doesn't help with the satellites) back in the 80s, calling
it the "DX Handy". Around 2000 Eagle made the Eagle 454 Spitfire which was
a 10 meter all mode HT (mainly aimed at the CB and Freeband crowd), and
another company has recently started marketing a 10 meter all mode HT
again. Belcom also made a 70cm all mode HT.
So, there are rigs out there in HT format that will work on the linear
satellites, now the job is to find them!
I have been waiting to comment on early threads on this post as well. While
the linear satellites do hold more possibilities, they are more expensive to
get on, and unfortunately in the States, there just isnt' that much activity
on VO52 which is unfortunate since it is a such a great satellite. The FM
satellites are just cheaper to get started on.
For example: my FM satellite station consists of
Kenwood TM-251A bought used for $99
Arrow Antennas dualband J Pole bought new for $40
50 foot run of 9913 knock off coax bought new for $38
So, for less than $200 I have a good FM setup. I already had the power
supply, but if you need to buy a new one, figure $75 or so.
I can do one linear sat right now-AO7 in Mode A-using my Icom 706 original.
I bought the rig for $260, got a Mirage B108 amp for $40, and a 2M9SSB for
$40 (plus the gas and tolls to pick it up). The light duty rotor was
already up but it was about $80 new. The 9913 copy coax was $38. For the
10 meter downlink I already had a dipole up, but that would cost $30 or so
to build-including coax. Overall, I got very good prices on this setup, it
would usually cost more.
I give both examples just to show the difference in setup costs. With my
Icom HF/VHF setup I cannot work Mode B on the satellites, as I don't have a
UHF transmitter (as of yet).
73s John AA5JG
On Tue, Jul 5, 2011 at 10:43 AM, Patrick STODDARD (WD9EWK/VA7EWK) <
amsat-bb@xxxxxx.xxx> wrote:
> Hi!
>
> > Show me an all-mode HT that retails for the same sort of price and is the
> > same sort of size as an FM HT and I might be interested. Otherwise, to
> > get UHF and VHF SSB I'm stuck with an inconveniently large radio which
> > is only really useful for the twenty minutes a day that a satellite is
> > overhead.
>
> An all-mode HT.... doesn't exist at this time. Probably the closest you
> get
> in an HT would be a TH-F6/TH-F7 with its all-mode receiver, but still an FM
> transmitter. You could attempt transmitting CW by keying that transmitter,
> but it's not ideal with the 5 kHz tuning steps at FM on that radio (SSB
> tuning steps on a TH-F6/TH-F7 can go as small as 33 Hz) and no
> provision for computer control. Otherwise, an FT-817 gets close to the
> HT size, is an all-mode transceiver at HF and 6m as well as 2m and
> 70cm, and would qualify as a radio that can be used more than "twenty
> minutes a day that a satellite is overhead." It does cost more than an
> FM HT, but FT-817s should be available on the secondhand market
> as they have been in production for a decade. Even two FT-817s as
> a portable all-mode full-duplex satellite station are not what I - or
> many - would consider "inconveniently large". If you prefer computer
> control, the 817s have Yaesu's CAT port to allow for that.
>
> > Not to mention the difficulty involved in tuning the radio and aiming the
> > antenna. Doesn't the Doppler shift mean you need to constantly
> > retune? How do you manage to do that, key the mike and point the
> > aerial, *and* have enough brainpower left to make a contact?
>
> You are having to make minor adjustments to your frequency - or
> frequencies - when working SSB or CW via satellite. If you follow the
> so-called One True Rule, you're making the adjustments to one of
> the two frequencies (usually the higher of the two frequencies).
> Everyone had to work SSB/CW via satellite this way in the past,
> before the advent of computer-controlled stations, and it is still an
> option today even if some (many?) discourage it.
>
> If you've worked FM satellites, you already know about the "key the
> mike and point the aerial" part. Then just focus on the QSO in
> progress. Don't try to remember everyone you worked - leave that
> on an audio recorder, or recorder app for a mobile phone or iPod
> type of device or laptop/netbook, and play it back later to update
> your log.
>
> Pedro EB4DKA has posted a lot of useful information for working
> SSB via satellite. I read the writeups and watched the videos as I
> started out on the SSB birds. I don't operate using a mobile setup
> like Pedro does, but with one directional antenna (an Elk 2m/70cm
> log periodic) through a diplexer to my two-radio setup. I've
> uploaded some videos working those satellites at:
>
> http://www.youtube.com/va7ewk
>
> I used both of my FT-817NDs on the SSB passes shown in these
> videos, but on occasion swap out the 817 I use as the receiver
> and put my TH-F6A in its place.
>
> 73!
>
>
>
>
>
>
> Patrick WD9EWK/VA7EWK
> http://www.wd9ewk.net/
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 18
Date: Tue, 5 Jul 2011 11:03:04 -0500
From: R Oler <orbitjet@xxxxxxx.xxx>
Subject: [amsat-bb] Re: ARISSat-1/RadioSkaf-V Deployment date?
To: <gouldsmi@xxxxxxxxx.xxx>, Amsat BB <amsat-bb@xxxxx.xxx>
Message-ID: <col106-w4671BAECCA092DB2AACF18D65F0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Do we know ARISSAT works? Robert G. Oler WB5MZO Life Member AMSAT ARRL NARS
> From: gouldsmi@xxxxxxxxx.xxx
> To: amsat-bb@xxxxx.xxx
> Date: Mon, 4 Jul 2011 13:00:44 -0400
> Subject: [amsat-bb] ARISSat-1/RadioSkaf-V Deployment date?
>
> I would like to be able to give a firm date for the ARISSat deployment, but
> there are a few issues that make that a moving target.
> The deployment is scheduled to occur during Russian EVA 29, today that is 27
> July 2011.
> >From a teleconference last week there was a notice that the EVA may be
> pushed back a week or two if the Shuttle arrives in early July- nothing firm
> yet.
> We have another teleconference 6 July. I will release any probable dates or
> updates when I know them. Thank you for your patience.
>
> 73,
> Gould, WA4SXM
> AMSAT ARISSat project manager
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 6, Issue 364
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