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CX2SA > SATDIG 12.03.14 13:00l 577 Lines 20638 Bytes #999 (0) @ WW
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Today's Topics:
1. Re: Two hundred 437 MHz satallites launch March 16 + WebSDR
(Howie DeFelice)
2. Re: Two hundred 437 MHz satallites launch March 16 + WebSDR
(M5AKA)
3. Re: Two hundred 437 MHz satallites launch March 16 + WebSDR
(Howie DeFelice)
4. Circular and elliptical polarization question. (Douglas Phelps)
5. FS: Jetstream 9913F 50 feet coax with PL259s (John Geiger)
6. droid sat app (WA6FWF)
7. lotw (Bruce)
8. Re: Circular and elliptical polarization question. (Lizeth Norman)
9. W1AW/7 satellite activity from Arizona has started!
(Patrick STODDARD (WD9EWK/VA7EWK))
10. Re: lotw (Kevin M)
11. Re: lotw (Gus)
12. Question for the antenna gurus (Gus)
13. M2 PS 70M for sale (Lizeth Norman)
14. Re: lotw (Gary "Joe" Mayfield)
----------------------------------------------------------------------
Message: 1
Date: Tue, 11 Mar 2014 16:53:29 -0400
From: Howie DeFelice <howied231@xxxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Two hundred 437 MHz satallites launch March 16
+ WebSDR
Message-ID: <BLU169-W3374664892463B87CAB69CE7770@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
"Keep in mind that the downlink is not effected by usa rules...."
This may be true if the owner of the satellite is not licensed in
the USA or it is operating on some service other than the Amateur Radio
Service. ITU recommends policy, it doesn't make or enforce law as I
understand it.
Before this gets too much further into the weeds, the purpose of my
original post was to bring awareness that satcom is regulated by
cooperative national authorities and is not the "wild west" of
radio spectrum. This is true whether it is an amateur of commercial
satellite regardless of size. Just because you can build it and get it
launched does not mean it is legal. We all have a responsibility to
be vigilant. I don't think too many people would intentionally put up
a satellite in violation of the rule of law, but it is a complex issue.
It never hurts to ask a question.
- Howie AB2S
------------------------------
Message: 2
Date: Tue, 11 Mar 2014 22:14:33 +0000 (GMT)
From: M5AKA <m5aka@xxxxx.xx.xx>
To: Howie DeFelice <howied231@xxxxxxx.xxx>, "amsat-bb@xxxxx.xxxx
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Two hundred 437 MHz satallites launch March 16
+ WebSDR
Message-ID:
<1394576073.36368.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
> This may be true if the owner of the satellite is not licensed in
> the USA or it is operating on some service other than the Amateur Radio
> Service. ITU recommends policy, it doesn't make or enforce law as I
> understand it.
Judging from the number issued in recent years the FCC seem happy to issue
experimental licenses for satellites in 144/435/2400 including the use of
emission types that aren't covered by existing FCC amateur radio regulations.
AggieSat4's 153.6 kbps 4 watt 436 MHz downlink using ITU Emission
Designation 406KF7DBN might breach the bandwidth limits of an amateur
license, its 406 kHz B/W comfortably exceeding the FCC 100 kHz limit on the
band, but FCC were okay with issuing an experimental license for it.
As I read the FCC amateur regs emission spread spectrum emission modes such
as CDMA can be used on all amateur bands as long as ITU emission designation
symbols 2 and 3 are not both X. Such XX modes are designated by FCC as "SS"
and only permitted above 420 MHz.
73 Trevor M5AKA
------------------------------
Message: 3
Date: Tue, 11 Mar 2014 18:33:49 -0400
From: Howie DeFelice <howied231@xxxxxxx.xxx>
To: M5AKA <m5aka@xxxxx.xx.xx>, "amsat-bb@xxxxx.xxxx
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Two hundred 437 MHz satallites launch March 16
+ WebSDR
Message-ID: <BLU169-W8761516EFC163B49036E39E7770@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
I am glad that the FCC considered this and granted the experimental license.
You can simulate for all eternity but nothing replaces a real world test. By
obtaining an FCC experimental license, the application with initial
descriptive details become public record. The licensee then has the option
of sharing with the amateur community or not.
- Howie AB2S
Date: Tue, 11 Mar 2014 22:14:33 +0000
From: m5aka@xxxxx.xx.xx
Subject: Re: [amsat-bb] Re: Two hundred 437 MHz satallites launch March 16
+ WebSDR
To: howied231@xxxxxxx.xxxx amsat-bb@xxxxx.xxx
> This may be true if the owner of the satellite is not licensed in
> the USA or it is operating on some service other than the Amateur Radio
> Service. ITU recommends policy, it doesn't make or enforce law as I
> understand it.
Judging from the number issued in recent years the FCC seem happy to issue
experimental licenses for satellites in 144/435/2400 including the use of
emission types that aren't covered by existing FCC amateur radio regulations.
AggieSat4's 153.6 kbps 4 watt 436 MHz downlink using ITU Emission
Designation 406KF7DBN might breach the bandwidth limits of an amateur
license, its 406 kHz B/W comfortably exceeding the FCC 100 kHz limit on
the band, but FCC were okay with issuing an experimental license for it.
As I read the FCC amateur regs emission spread spectrum emission modes such
as CDMA can be used on all amateur bands as long as ITU emission designation
symbols 2 and 3 are not both X. Such XX modes are designated by FCC as "SS"
and only permitted above 420 MHz.
73 Trevor M5AKA
------------------------------
Message: 4
Date: Tue, 11 Mar 2014 18:10:48 -0700 (PDT)
From: Douglas Phelps <dphelps1@xxxxxxxxx.xxx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Circular and elliptical polarization question.
Message-ID:
<1394586648.62829.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
I read in 'The Satellite Handbook' that I can mount to linear yagis side by
side (and at right angles) and I will get elliptical polarization. ?My two
questions are:
1. Is their a formula or rule of thumb that will tell me how elliptical (or
non circular) the waveform will be as a factor of the separation between the
two antennas? (I would expect that the greater the separation the more
elliptical the waveform(farther from circular)).
2. ?I would think that the closer the better. ?I know when you mount two
yagis next to each other, in the same plane, there is a minimum separation
distance to prevent the antennas from affecting each other but with cross
polarization intending circular polarization, the closer the better. ?Does
this make sense?
The reason I am asking is that I want to mount ?arrow antennas with the same
element sets at right angles and offset a quarter wavelength, with the
correct phasing harness and the WRAPS AZ/EL to create a portable auto
tracking satellite setup that can be disassembled and easily moved. Yes, I
know the VHF offset will be wrong for UHF but I intend to re-drill the UHF
antenna holes so that both the VHF and UHF will be offset a quarter
wavelength.
The matching system used by arrow does not allow the crossing of the same
wavelength antenna on the same boom.
I would appreciate and advice from those that are more competent with
antenna theory than myself.
Doug K9DLP
------------------------------
Message: 5
Date: Wed, 12 Mar 2014 01:51:24 -0000
From: "John Geiger" <af5cc@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] FS: Jetstream 9913F 50 feet coax with PL259s
Message-ID: <390B8DC2079D450C9E2347F240B4A118@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
In case anyone needs some coax for their satellite antennas-I have for sale
a 50 foot role of Jetstream 9913 flex low loss cable with
PL259s on each end. Never used, still in its package.
I am asking $52 shipped and can take paypal/check/MO.
73 John AF5CC
------------------------------
Message: 6
Date: Tue, 11 Mar 2014 19:59:46 -0700
From: WA6FWF <wa6fwf@xxxxxxxxx.xxx>
To: AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] droid sat app
Message-ID: <531FCDA2.9020201@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi,
been looking at different sat tracking apps cant seem to find a
particular feature I want, I looking for a app that can run in the
background and then it will popup and alert me when a sat is about to
AOS, I tend to get busy doing something and then miss a pass, anyone
seen a app that will do this?
Thanks 73
Kevin WA6FWF
------------------------------
Message: 7
Date: Tue, 11 Mar 2014 22:12:12 -0500
From: Bruce <kk5do@xxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] lotw
Message-ID: <531FD08C.6090109@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
i have decided to try lotw again after using it in 2003 and having a
miserable time with it. i need to find someone that i have had a
satellite qso with that has uploaded their log so i can change that
record or two and then see if i get a match before i try to modify each
of my 6500 satellite contacts. it is going to take me a long time to go
through and change each record to match the lotw criteria and will take
me a long long time. want to make sure it is correct before i start
logging new contacts. i have never found much use in lotw as all my
contacts are confirmed by qsl card. not sure why i want to go through
the exercise but what the heck.
i think
band is 2m, 70cm, 13cm (which is for the rx frequency)
mode fm or ssb
satname is so50, ao51, ao27 etc
prop mode is sat
anything else have to be changed (i have only logged the rx frequency,
not the tx frequency)
73...bruce
--
Bruce Paige, KK5DO
AMSAT Director Contests and Awards
ARRL Awards Manager (WAS, 5BWAS, VUCC), VE
Houston AMSAT Net - Wed 0100z on Echolink - Conference *AMSAT*
Also live streaming MP3 at http://www.amsatnet.com
Podcast at http://www.amsatnet.com/podcast.xml or iTunes
Latest satellite news on the ARRL Audio News
http://www.arrl.org
AMSAT on Twitter http://www.twitter.com/amsat
------------------------------
Message: 8
Date: Wed, 12 Mar 2014 00:28:57 -0400
From: Lizeth Norman <normanlizeth@xxxxx.xxx>
To: Douglas Phelps <dphelps1@xxxxxxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Circular and elliptical polarization question.
Message-ID:
<CAJUhCTOgn8X_C2_AKObSUHeUt+exWtt=mMyj87LegviwGC7AVw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Doug,
I use a pair of Elk V-Uhf antennas fed in phase for VHF. The UHF side is
covered presently by an Arrow II 7x2 (fed by a spdt coaxial relay).
Very portable and relatively compact. Not much wiring, so to speak.
Working on a simple, robust rotator from K3NG.
Your project is a bit more complex. I suspect that you'll need a homebrew
antenna range to evaluate the performance before, during and after testing.
The real problem is gathering data and more importantly, determining if
your changes made any positive impact on the design.
See HDL.exe on Google for more info on how to build one. (Horn, Dish, Lens)
Norm n3ykf
On Tue, Mar 11, 2014 at 9:10 PM, Douglas Phelps <dphelps1@xxxxxxxxx.xxx>wrote:
> I read in 'The Satellite Handbook' that I can mount to linear yagis side
> by side (and at right angles) and I will get elliptical polarization. My
> two questions are:
>
> 1. Is their a formula or rule of thumb that will tell me how elliptical
> (or non circular) the waveform will be as a factor of the separation
> between the two antennas? (I would expect that the greater the separation
> the more elliptical the waveform(farther from circular)).
>
> 2. I would think that the closer the better. I know when you mount two
> yagis next to each other, in the same plane, there is a minimum separation
> distance to prevent the antennas from affecting each other but with cross
> polarization intending circular polarization, the closer the better. Does
> this make sense?
>
> The reason I am asking is that I want to mount arrow antennas with the
> same element sets at right angles and offset a quarter wavelength, with the
> correct phasing harness and the WRAPS AZ/EL to create a portable auto
> tracking satellite setup that can be disassembled and easily moved. Yes, I
> know the VHF offset will be wrong for UHF but I intend to re-drill the UHF
> antenna holes so that both the VHF and UHF will be offset a quarter
> wavelength.
>
> The matching system used by arrow does not allow the crossing of the same
> wavelength antenna on the same boom.
>
> I would appreciate and advice from those that are more competent with
> antenna theory than myself.
>
> Doug K9DLP
> _______________________________________________
> 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: 9
Date: Tue, 11 Mar 2014 22:50:55 -0700 (PDT)
From: "Patrick STODDARD \(WD9EWK/VA7EWK\)" <amsat-bb@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] W1AW/7 satellite activity from Arizona has
started!
Message-ID:
<1394603455.74589.YahooMailBasic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Hi!
Between John K8YSE/7 and me, we have logged 27 satellite QSOs
as W1AW/7 on the satellites from here in Arizona this evening. John
worked a VO-52 pass to start the activity, logging 8 QSOs, followed
by 9 more QSOs on the FO-29 pass around 0104 UTC. I logged 7
QSOs on the later FO-29 pass at 0248 UTC, and 3 more QSOs for
the night owls on AO-73 at 0514 UTC. Not a bad start, in the first
few hours of Arizona's week with W1AW/7.
K8YSE/7 plans to put W1AW/7 on satellites during the daytime
tomorrow (Wednesday), including SO-50 for those wanting an FM
QSO with W1AW/7. I plan on working some passes in the evening.
Both of us will be giving out the official exchange - 59 Arizona - along
with our grid locators to comply with the instructions for operating
as W1AW/7 this week.
We hope to work lots of different stations during this week, in the hopes
of making a respectable showing for the satellite community while Arizona
has the W1AW/7 call sign. I'll use W1AW/7 for my on-air demonstrations
Saturday morning from the Scottsdale AZ "Springfest" hamfest, which
should provide many across North America a good shot of logging this
call (including SO-50 QSOs, as that satellite passes by the hamfest during
Saturday morning).
Time for bed... 73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 10
Date: Tue, 11 Mar 2014 23:30:39 -0700 (PDT)
From: Kevin M <n4ufo@xxxxx.xxx>
To: "AMSAT-BB@xxxxx.xxxx <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Re: lotw
Message-ID:
<1394605839.28087.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
i think
band is 2m, 70cm, 13cm (which is for the rx frequency)
mode fm or ssb
satname is so50, ao51, ao27 etc
prop mode is sat anything else have to be changed (i have only logged the rx
frequency,
not the tx frequency) 73...bruce
Sorry but "BAND" is the transmit band and "RX_BAND" is receive band. The
Transmit band is what is relevant to matching. I am afraid you will need to
change the BAND to the uplink band, or the QSOs will not match.
A Sat QSO is: CALL, QSO_DATE, TIME_ON, BAND, MODE, PROP_MODE, SAT_NAME
Maybe this will help:?
http://www.arrl.org/files/file/LoTW%20Instructions/N5JB.pdf
Just a note, my logging program (WINLOG32) does not handle satellite QSOs
very well. I have resorted to using TQSL to create sat logs. At first I had
all my sat QSOs in one file... then a bright idea hit me. I keep a separate
log file for each satellite/mode, so after a pass, when I go to enter new
QSOs, I just enter CALL, DATE and TIME... and click next. The rest is always
the same. Much quicker than having to constantly change the band and sat name.
Anyway, you can also load an existing ADIF file into TQSL and use the pull
down menus to edit fields. You can step through QSOs one at a time. Don't
know if that would be any easier for you or not.
73 es GL!
Kevin, N4UFO (ex-AC5DK)
------------------------------
Message: 11
Date: Wed, 12 Mar 2014 04:27:35 -0400
From: Gus <gus@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: lotw
Message-ID: <53201A77.20107@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 03/11/2014 11:12 PM, Bruce wrote:
> i have only logged the rx frequency, not the tx frequency
In MY country, the ham license mandates that a log be kept, including
the TX frequency. They really don't care who you listen to, or whether
you listen to anyone at all. But if you're going to generate RF on the
band, they want you to log it, whether you are simply running a TX test,
or making a (subsequently) unanswered CQ.
--
Gus 8P6SM
The Easternmost Isle
------------------------------
Message: 12
Date: Wed, 12 Mar 2014 04:33:25 -0400
From: Gus <gus@xxxxx.xxx>
To: "AMSAT-BB@xxxxx.xxxx <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Question for the antenna gurus
Message-ID: <53201BD5.7000804@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Regarding axial-mode helix antennas, what happens if you build a helix
for each of two different bands (like 2M/70cm), and mount them
concentrically, on the same backplane?
--
Gus 8P6SM
The Easternmost Isle
------------------------------
Message: 13
Date: Wed, 12 Mar 2014 07:33:34 -0400
From: Lizeth Norman <normanlizeth@xxxxx.xxx>
To: "<,amsat-bb@xxxxx.xxxxxxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] M2 PS 70M for sale
Message-ID:
<CAJUhCTOk3Pq6descp9GNWDhU2vTJnpKXHBuxqkw-ZT2e-s+0eQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Greetings:
The asshats at M2 cancelled my order without telling me. I now have a
failed antenna AND a part that I have no use for.
I'll sell it for 70% of retail as it's new in the box.
Free shipping conus.
73 de Norm n3ykf
------------------------------
Message: 14
Date: Wed, 12 Mar 2014 06:51:18 -0500
From: "Gary \"Joe\" Mayfield" <gary_mayfield@xxxxxxx.xxx>
To: <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Re: lotw
Message-ID: <BAY173-DS5808C63FF3F01D2963DC88A760@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Several programs do handle it very smoothly... N3FJP can be set up to make
logging and uploading sat contacts seamless.
73,
Joe kk0sd
P.S. Standard Disclaimer Applies.
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Kevin M
Sent: Wednesday, March 12, 2014 1:31 AM
To: AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] Re: lotw
i think
band is 2m, 70cm, 13cm (which is for the rx frequency)
mode fm or ssb
satname is so50, ao51, ao27 etc
prop mode is sat anything else have to be changed (i have only logged the rx
frequency,
not the tx frequency) 73...bruce
Sorry but "BAND" is the transmit band and "RX_BAND" is receive band. The
Transmit band is what is relevant to matching. I am afraid you will need to
change the BAND to the uplink band, or the QSOs will not match.
A Sat QSO is: CALL, QSO_DATE, TIME_ON, BAND, MODE, PROP_MODE, SAT_NAME
Maybe this will help:?
http://www.arrl.org/files/file/LoTW%20Instructions/N5JB.pdf
Just a note, my logging program (WINLOG32) does not handle satellite QSOs
very well. I have resorted to using TQSL to create sat logs. At first I had
all my sat QSOs in one file... then a bright idea hit me. I keep a separate
log file for each satellite/mode, so after a pass, when I go to enter new
QSOs, I just enter CALL, DATE and TIME... and click next. The rest is always
the same. Much quicker than having to constantly change the band and sat
name.
Anyway, you can also load an existing ADIF file into TQSL and use the pull
down menus to edit fields. You can step through QSOs one at a time. Don't
know if that would be any easier for you or not.
73 es GL!
Kevin, N4UFO (ex-AC5DK)
_______________________________________________
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 9, Issue 88
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