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CX2SA > SATDIG 07.01.14 21:02l 471 Lines 15186 Bytes #999 (0) @ WW
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Sent: 140107/2002Z @:CX2SA.SAL.URY.SA #:2378 [Salto] FBB7.00e $:AMSATBB97
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: Mobile/Portable Ops (Clint Bradford)
2. Re: Mobile/Portable Ops (Craig Gagner)
3. UKube-1 and other CubeSats in SatMagazine (M5AKA)
4. Re: LEO-satellites-antennas... ? (Burns Fisher)
5. Re: LEO-satellites-antennas... ? (Pavel Milanes Costa)
6. Re: LEO-satellites-antennas... ? (Francesco Messineo)
7. Delfi-n3XT - Telemetry Decoded Finally (Nitin Muttin)
8. 17.16 gmt AO7/B PASS QQV 2M1EUB/P (paul robinson)
9. Re: LEO-satellites-antennas... ? (Pavel Milanes Costa)
----------------------------------------------------------------------
Message: 1
Date: Mon, 6 Jan 2014 12:08:46 -0800
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Mobile/Portable Ops
Message-ID: <3182722A-440A-4531-84F5-35264469DF4D@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
CRAIG >> ... Just thought I would post this up, it may be of interest to
some of you ..
I have the Puxing UV-973 available now ... true full-duplex / dual-receive /
crossband repeating HT.
It received FCC certification last November.
Clint K6LCS
http://www.puxing973.us
909-241-7666 - cell
------------------------------
Message: 2
Date: Mon, 6 Jan 2014 15:16:06 -0500
From: "Craig Gagner" <crgagner@xxxxxxx.xxx>
To: "'Clint Bradford'" <clintbrad4d@xxxxxxxxx.xxx>,
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Mobile/Portable Ops
Message-ID: <001201cf0b1c$21857d20$64907760$@xxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Nice, Didn't know anything about it, maybe I missed it. Hopefully the big 3
will wake up, but its doubtful !
Craig
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Clint Bradford
Sent: Monday, January 6, 2014 3:09 PM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Mobile/Portable Ops
CRAIG >> ... Just thought I would post this up, it may be of interest to
some of you ..
I have the Puxing UV-973 available now ... true full-duplex / dual-receive /
crossband repeating HT.
It received FCC certification last November.
Clint K6LCS
http://www.puxing973.us
909-241-7666 - cell
_______________________________________________
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: 3
Date: Mon, 6 Jan 2014 20:46:27 +0000 (GMT)
From: M5AKA <m5aka@xxxxx.xx.xx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] UKube-1 and other CubeSats in SatMagazine
Message-ID:
<1389041187.95613.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
The January 2014 issue of the free SatMagazine features a number of
CubeSats, see
http://amsat-uk.org/2014/01/06/ukube-1-in-satmagazine/
----
73 Trevor M5AKA
AMSAT-UK website http://amsat-uk.org/
Facebook https://www.facebook.com/pages/AMSAT-UK/208113275898396
Twitter https://twitter.com/AMSAT_UK
----
------------------------------
Message: 4
Date: Mon, 6 Jan 2014 17:21:12 -0500
From: Burns Fisher <burns@xxxxxx.xx>
To: Ben Gelb <ben@xxxxxxx.xxx>
Cc: Jens Spiess <jens.spiess@xxxxxxx.xx>, AMSAT BB
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: LEO-satellites-antennas... ?
Message-ID:
<CABX7KxUftC_x2NLnxqtbSW+4DakqTFiys4F7BS86x_8sFwuQsg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=windows-1252
Oops. Jeff Moore noticed my typo: Tony's call is AA2TX. I left out the T
before.
On Mon, Jan 6, 2014 at 9:32 AM, Burns Fisher <burns@xxxxxx.xx> wrote:
> Ben,
>
> Have you looked at the AA2X Lindenblads? Tony has designed both a 70cm
> Lindenblad (with a single dipole driven element and parasitic elements for
> the rest) and a 2m Lindenblad (with phasing using lengths of 75ohm (yes,
> 75!) coax. I'm not terribly skilled at building stuff, but I was able to
> build the 70cm version, and I am just starting the 2m version. Not
> terribly hard and using easily-available materials. The only somewhat
> specialized items are ferrites, cable, and connectors. Most of the rest
> you can get at your local hardware store.
>
> The Lindenblads have a nice pattern too: highest gain toward the horizon
> somewhat less overhead (where the bird is closest).
>
> 73,
>
> Burns W2BFJ
>
>
> On Mon, Jan 6, 2014 at 2:21 AM, Ben Gelb <ben@xxxxxxx.xxx> wrote:
>
>> Hi Jens -
>>
>> I bought 3 of the antennas.us QFH antennas a few years ago.
>>
>> - 1 70cm QFH (passive)
>> - 1 70cm QFH w/ preamp
>> - 1 2m QFH (passive)
>>
>> I live in an apartment and have limited space for big antennas, so I
>> thought these would be a good fit. They're very compact, and easy to set
>> up
>> on my flat roof.
>>
>> Over the couple of years I used them, I made some QSOs on FO-29 and others
>> (I don't have 70cm TX, so primarily used 70cm for receive only). Worked
>> OK,
>> but found that I needed pretty high elevation passes to have success.
>>
>> I think the QFH throws most of the energy straight up (broad pattern, but
>> not a lot at the low elevation angles).
>>
>> Then, the 2m antenna turned into an open... turned out to be a broken
>> solder joint inside of the antenna (not easy to get at it to fix,
>> either...
>> needed a hacksaw, as the antenna is sealed in a plastic tube).
>> Then, the preamp in the 70cm ant stopped working. Haven't bothered trying
>> to fix.
>>
>> Lately, I switched to a small 6-el "cheap yagi" (WA5VJB design) for 70cm
>> receive, mounted on a motorized pan/tilt for security cameras... SO MUCH
>> better (and not a "long" yagi by any means either). So there is definitely
>> a compromise going to the omni-type ants.
>>
>> If i'd continued down the fixed/omni path, I think I would have liked to
>> try a simple 1/4 vertical as a baseline - my hunch is it may have
>> performed
>> at least as well as the QFH, since there would be better coverage of the
>> lower elevations (where the sat is farther away). The "Lindenblad" looked
>> interesting too, but complicated to make yourself.
>>
>> 73,
>> Ben
>>
>>
>>
>> On Tue, Dec 24, 2013 at 3:45 AM, Jens Spiess <jens.spiess@xxxxxxx.xx>
>> wrote:
>>
>> > Hi all ,
>> >
>> > I would like to work the LEO-satellites after a stop of my
>> amsat-activities
>> > since 12 years now again .
>> > But I have changed my QTH in the Swiss-Alps and the weather is at a lot
>> > of times of the year very roughly . (A lot of snow, ice and storms ...)
>> >
>> > So , I want NOT use long YAGI-Antennas with rotators again ? ... or so
>> on
>> > ..-
>> > because all was always and always ? also the rotator ? demaged .
>> > So I am interested to use ? maybe ? only fixed antennas for 2m/70cm like
>> > the
>> > edgbeater from M2 or the other like this (I found it in the internet ) :
>> >
>> >
>> >
>>
http://www.antennas.us/store/p/229-UC-4364-328-UHF-Amateur-Satellite-Antenna.h
tml
>> >
>> > BUY BOTH as KIT :
>> > =================
>> > UC-AMSAT-KITP, 2 m / 70 cm Passive Amateur Satellite Antenna Kit
>> > Item #: UC-AMSAT-KITP-VHFL-UHFR-N-VHF-10ft-UHF-10ft
>> > Availability: approx. 2 weeks
>> > Usually ships In approx. 2 weeks
>> > Price: $250.00
>> >
>> > But they will always use with low-noise 20 dB-gain-Preamplifieres
>> installed
>> > on the top of my house directly after the antennas .
>> >
>> > Can anybody tell me , which antenna-types will get the best results as
>> > fixed-mounted ones or have anybody experiences or maked a compare
>> > between these antennas ...?
>> >
>> > Like this :
>> >
>> >
>>
http://www.antennas.us/store/p/229-UC-4364-328-UHF-Amateur-Satellite-Antenna.h
tml???
>> > or these :
>> > http://www.m2inc.com/pdf_manuals/EB-144%20_%20RK2M.pdf ???
>> >
>> > Which of them will be better work for LEO-communication ...??
>> >
>> > 73 de Jens / HB9JOI
>> >
>> > _______________________________________________
>> > 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-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>>
>
>
------------------------------
Message: 5
Date: Mon, 06 Jan 2014 20:15:56 -0500
From: Pavel Milanes Costa <co7wt@xxxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: LEO-satellites-antennas... ?
Message-ID: <52CB554C.4080405@xxxxxx.xx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Yes, Omni antenna in 70cm is my head ache now, no rotor yet (arduino is
on his way...)
I just build a QFH + 10dB preamp on the mast and a RTL... testing it yet.
I can copy FO-29 (Beacon and transponder), SO-67 beacon, just heard
xatcobeo with short carrier by times...
Al this above 30 degrees of elevation... below 30 degrees nothing... hi
hi hi..
SO-50 is a no go even in a 70 degrees pass...
I'm evaluating the parasit lidenblad or the turnstile moxons... any
advice based on practice on this two and against QFH? better? worse? the
same?
73, CO7WT.
El 06/01/14 10:09, Robert Bruninga escribi?:
>> I think the QFH throws most of the energy straight up (broad pattern,
> but not a lot at the low elevation angles).
>
> Or another way to look at it, is that satellites at low elevations angles
> are 10 dB farther away so they will always be weaker by a factor of 10 to
> 1 to high elevations.
>
> Bob, WB4APR
> _______________________________________________
> 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: Tue, 7 Jan 2014 09:25:26 +0100
From: Francesco Messineo <francesco.messineo@xxxxx.xxx>
To: Pavel Milanes Costa <co7wt@xxxxxx.xx.xx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: LEO-satellites-antennas... ?
Message-ID:
<CAESs-_zzf5FV=hM8T7mc5udGoyOdxmOHpT1K8QymNCihGgvXpg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi Pavel,
On Tue, Jan 7, 2014 at 2:15 AM, Pavel Milanes Costa <co7wt@xxxxxx.xx.xx>
wrote:
> Yes, Omni antenna in 70cm is my head ache now, no rotor yet (arduino is on
> his way...)
>
> I just build a QFH + 10dB preamp on the mast and a RTL... testing it yet.
>
> I can copy FO-29 (Beacon and transponder), SO-67 beacon, just heard xatcobeo
> with short carrier by times...
>
> Al this above 30 degrees of elevation... below 30 degrees nothing... hi hi
> hi..
>
> SO-50 is a no go even in a 70 degrees pass...
>
> I'm evaluating the parasit lidenblad or the turnstile moxons... any advice
> based on practice on this two and against QFH? better? worse? the same?
>
I've worked all the LEO sat available some years ago with a couple of
lindenblads from AA2TX project. Both with masthead preamp. Radio was
an FT-847.
I can remember working AO-07 (cw only) down to very low elevations,
FO-29 and the Indian satellite (sorry, can't remember the number right
now) where the easiest with some passes available also for SSB QSOs.
AO-27 was easy to work when traffic was not high, also SO-50 was
workable and of course the ISS trasponder.
73 de IZ8DWF
------------------------------
Message: 7
Date: Tue, 7 Jan 2014 18:21:27 +0800 (SGT)
From: Nitin Muttin <vu3tyg@xxxxx.xx.xx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Delfi-n3XT - Telemetry Decoded Finally
Message-ID:
<1389090087.57813.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Finally decoded the telemetry from Delfi- n3XT cubesat after much trying. I
was using Funcube Dongle Pro + SDR# set at 6 Khz Bandwidth+ Orbitron plugin
+ Preamp + Dude 5.1 telemetry client from the project team + 7 element Yagi.
Could not capture the screen shot from Dude as my PC hanged.?
A video is available at?http://youtu.be/JcM1OW-shX8? (Older video relating
to how this works)
DK3WN Satblog ?http://www.dk3wn.info/p/?p=40353
?
73
Nitin [VU3TYG]
------------------------------
Message: 8
Date: Tue, 7 Jan 2014 15:48:02 +0000 (GMT)
From: paul robinson <pushbiker2004@xxxxx.xx.xx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] 17.16 gmt AO7/B PASS QQV 2M1EUB/P
Message-ID:
<1389109682.31280.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Ill try the 17.16 pass on ao7/b if any one is looking for me de paul
2M1EUB/P io87nc
------------------------------
Message: 9
Date: Tue, 7 Jan 2014 11:58:23 -0500 (CST)
From: Pavel Milanes Costa <co7wt@xxxxxx.xx.xx>
To: Francesco Messineo <francesco.messineo@xxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: LEO-satellites-antennas... ?
Message-ID: <17957624.160226.1389113903223.JavaMail.root@xxxxxx.xx.xx>
Content-Type: text/plain; charset=utf-8
I Francesco et all,
Tks for the tip.
I'm reading good stories about the AA2TX lindys on the internet...
I have the pdf files for it's construction and almost all the parts in my
junk box...
This will be a busy weekend... If I have anough material I will be building
2 of them for RH and LHCP..
73 and thanks again
----- Mensaje original -----
De: Francesco Messineo <francesco.messineo@xxxxx.xxx>
Para: Pavel Milanes Costa <co7wt@xxxxxx.xx.xx>
CC: AMSAT BB <amsat-bb@xxxxx.xxx>
Enviado: Tue, 07 Jan 2014 03:25:26 -0500 (CST)
Asunto: Re: [amsat-bb] Re: LEO-satellites-antennas... ?
Hi Pavel,
On Tue, Jan 7, 2014 at 2:15 AM, Pavel Milanes Costa <co7wt@xxxxxx.xx.xx>
wrote:
> Yes, Omni antenna in 70cm is my head ache now, no rotor yet (arduino is on
> his way...)
>
> I just build a QFH + 10dB preamp on the mast and a RTL... testing it yet.
>
> I can copy FO-29 (Beacon and transponder), SO-67 beacon, just heard xatcobeo
> with short carrier by times...
>
> Al this above 30 degrees of elevation... below 30 degrees nothing... hi hi
> hi..
>
> SO-50 is a no go even in a 70 degrees pass...
>
> I'm evaluating the parasit lidenblad or the turnstile moxons... any advice
> based on practice on this two and against QFH? better? worse? the same?
>
I've worked all the LEO sat available some years ago with a couple of
lindenblads from AA2TX project. Both with masthead preamp. Radio was
an FT-847.
I can remember working AO-07 (cw only) down to very low elevations,
FO-29 and the Indian satellite (sorry, can't remember the number right
now) where the easiest with some passes available also for SSB QSOs.
AO-27 was easy to work when traffic was not high, also SO-50 was
workable and of course the ISS trasponder.
73 de IZ8DWF
------------------------------
_______________________________________________
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 7
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