| |
CX2SA > SATDIG 22.04.09 01:19l 595 Lines 19706 Bytes #999 (0) @ WW
BID : 27508-CX2SA
Read: GUEST
Subj: AMSAT-BB-digest V4 190
Path: IZ3LSV<IK2XDE<DB0RES<ON0AR<HS1LMV<CX2SA
Sent: 090421/2311Z @:CX2SA.LAV.URY.SA #:27508 [Minas] FBB7.00e $:27508-CX2SA
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Send AMSAT-BB mailing list submissions to
amsat-bb@xxxxx.xxx
To subscribe or unsubscribe via the World Wide Web, visit
http://amsat.org/mailman/listinfo/amsat-bb
or, via email, send a message with subject or body 'help' to
amsat-bb-request@xxxxx.xxx
You can reach the person managing the list at
amsat-bb-owner@xxxxx.xxx
When replying, please edit your Subject line so it is more specific
than "Re: Contents of AMSAT-BB digest..."
Today's Topics:
1. Re: Arrow Antenna Gain (w7lrd@xxxxxxx.xxxx
2. Re: Arrow Antenna Gain (Clint Bradford)
3. Re: Arrow Antenna Gain (Clint Bradford)
4. FT736 Master Reset? (Kevin Phx Az)
5. FW: PBH Flight 9 - KC2TUA-8 Heading Towards Azores and UK
(Robert Bruninga)
6. Re: FT736 Master Reset? (Jim Jerzycke)
7. FT736 Problem (Kevin Phx Az)
8. Antenna comparisons (David J)
9. Re: Linear sat half-duplex operating tips? (Greg D.)
10. Re: AMSAT-BB Digest, Vol 4, Issue 188 (Michael J Finn)
11. Vol 4, Issue 188 Packet Satellites? (Robert Bruninga)
12. Re: FW: PBH Flight 9 - KC2TUA-8 Heading Towards Azores and UK
(Jim Heck)
13. AMSAT INDIA April Newsletter (Nitin Muttin [VU3TYG])
14. Re: VHF Packet was - Re: AMSAT-BB Digest, Vol 4, Issue 188
(JoAnne Maenpaa)
15. Re: UT1FG/MM (ps8rf ps8)
----------------------------------------------------------------------
Message: 1
Date: Mon, 20 Apr 2009 19:08:28 +0000 (UTC)
From: w7lrd@xxxxxxx.xxx
Subject: [amsat-bb] Re: Arrow Antenna Gain
To: Call Sign <ki6rrq@xxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<1178136135.3776251240254508820.JavaMail.root@xxxxxxx.xxxxxxxxxx.xx.xxxx
.xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
This brings up an ongoing complex issue.? That being antenna gain.? I build L
& S band antennas and I know it is better off the front than the back.?
Depending on which formula you use, what standard you use, or who you want to
believe.? For the number aficionado this can be a delirious situation.? If I
remember right QST does not publish antenna gain of their advertisers.? ?I
hasten back to Mr. Lowe's remark, "it works".? When calculating link budgets
this is indeed a numbers game.
73 Bob W7LRD
----- Original Message -----
From: "Call Sign" <ki6rrq@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Sent: Monday, April 20, 2009 11:27:46 AM GMT -08:00 US/Canada Pacific
Subject: [amsat-bb] ?Arrow Antenna Gain
I have called Mr. Lowe in the past and asked him if he knew what gain his
Arrow dual band satellite antenna, was getting on both bands, his response
was; it works, that's all I know! ?(so I didn't push the issue)
Now I am curious again, has anyone here tested and or calculated what the gain
is, on the Arrow dual band (2 meters & .70 cent.) hand held satellite antenna,
either or both bands?
Rich KI6RRQ@xxx.xxx
_______________________________________________
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: 2
Date: Mon, 20 Apr 2009 12:11:53 -0700
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Arrow Antenna Gain
To: amsat-bb@xxxxx.xxx
Message-ID: <B62C55DD-CCB9-4E34-A570-7DBA52F3AFF1@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
I had one customer bring his Arrow Antenna back for a refund. "This
design cannot possibly work!" he, an engineer, declared.
Since it was now "open stock," I bought it myself. And am using it to
this day for presentations and demos. Successfully ...
I haven't measured it. I would imagine it is somewhere between 6db and
12db gain on either band. It "captures" SO-50 and AO-51 so well that
you almost feel like you are "cheating..." - but I am preachin' to the
choir here.
Clint Bradford, K6LCS
909-241-7666
------------------------------
Message: 3
Date: Mon, 20 Apr 2009 12:18:34 -0700
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Arrow Antenna Gain
To: amsat-bb@xxxxx.xxx
Message-ID: <8D0A1681-F182-4873-8B8F-977950A30554@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
>> ... Depending on which formula you use, what standard you use, or
who you want to believe ...
I remember when Antennex came out with their low-profile "Phantom"
antennas. They didn't like established procedures for acquiring gain,
which showed (on the 460mHZ unit) Zero gain.
So - honest to gawd - they came up with their OWN formula and that
little 4" antenna now has 3db gain!
And let's not get started with manufacturer's published gain figures
for handheld antennas ... (grin)
Clint Bradford
909-241-7666
------------------------------
Message: 4
Date: Mon, 20 Apr 2009 15:49:33 -0700
From: "Kevin Phx Az" <kevinbbb@xxx.xxx>
Subject: [amsat-bb] FT736 Master Reset?
To: "AMSAT" <amsat-bb@xxxxx.xxx>
Message-ID: <C71B1B77F76E44B0AFF992479824E866@xxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Would someone remind me how to do a Master Reset please.
I've done a lot of searching to no avail.
Tnx Kevin N6CWF
------------------------------
Message: 5
Date: Mon, 20 Apr 2009 19:00:04 -0400
From: "Robert Bruninga" <bruninga@xxxx.xxx>
Subject: [amsat-bb] FW: PBH Flight 9 - KC2TUA-8 Heading Towards Azores
and UK
To: <amsat-bb@xxxxx.xxx>
Message-ID: <6CFE13F96C0F442A8A461CD7DFE0899B@xxxxx.xxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Long-life balloon headed for Azores and UK!
Has APRS on 144.39 and HF CW beacon on 10.146.840 MHz
Latest map position can be found here:
http://tinyurl.com/dmp3dh
Please ask all hams w/HF capabilities listen and send
their results to pbhdata@xxxxx.xxx
Thanks so much for your help!
Tom Triebwasser
------------------------------
Message: 6
Date: Mon, 20 Apr 2009 16:01:02 -0700 (PDT)
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
Subject: [amsat-bb] Re: FT736 Master Reset?
To: AMSAT <amsat-bb@xxxxx.xxx>, Kevin Phx Az <kevinbbb@xxx.xxx>
Message-ID: <18975.58127.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
There are two holes in the top of the case. Looking at the front panel of the
radio as you would use it, the "reset" switch is under the LEFT hole. Turn the
power off, and slide the switch to the LEFT for approx 30 seconds. This will
clear all memories and reset the microprocessor. Slide it back to the RIGHT,
and power up the radio, and reprogram it.
This is on page 12 of the FT-736R manual I have.
73, Jim KQ6EA
--- On Mon, 4/20/09, Kevin Phx Az <kevinbbb@xxx.xxx> wrote:
> From: Kevin Phx Az <kevinbbb@xxx.xxx>
> Subject: [amsat-bb] FT736 Master Reset?
> To: "AMSAT" <amsat-bb@xxxxx.xxx>
> Date: Monday, April 20, 2009, 3:49 PM
> Would someone remind me how to do a Master Reset please.
> I've done a lot of searching to no avail.
> Tnx Kevin N6CWF
> _______________________________________________
> 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: 7
Date: Mon, 20 Apr 2009 18:12:35 -0700
From: "Kevin Phx Az" <kevinbbb@xxx.xxx>
Subject: [amsat-bb] FT736 Problem
To: <AMSAT-BB@xxxxx.xxx>
Message-ID: <96DAEB345B84430B82DD7C5BD3DBF18F@xxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
I did the reset but has not fixed my problem.
When I press the F button to set the Rpt up/down it does not change
it from simplex and 01 comes up in the display to the right of the vfo
frequency displayed as if I had pressed the MR button.
Any suggestions?
Tnx Kevin N6CWF
------------------------------
Message: 8
Date: Mon, 20 Apr 2009 21:35:38 -0400
From: "David J" <n4csitwo@xxxxxxxxx.xxx>
Subject: [amsat-bb] Antenna comparisons
To: <amsat-bb@xxxxx.xxx>, "amsat-florida" <amsat-florida@xxxxx.xxx>
Message-ID: <648AE7838A83455AA3D4E9E53DAE6DF4@xxx>
Content-Type: text/plain; charset="iso-8859-1"
I'm looking for any paper or article that compares performance of 70cm and 2M
antennas in attic environments. Preferably where multiple antennas were tested
in the same location in the same attic area. I'm particularly interested in
antennas such as the Arrow, eggbeater, a typical turnstile, Texas Potato
Masher, quadrifiler type, the newer Cantenna, a ground plane, etc.
Can anyone help me out?
Dave, AA4KN
------------------------------
Message: 9
Date: Mon, 20 Apr 2009 20:03:08 -0700
From: "Greg D." <ko6th_greg@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Linear sat half-duplex operating tips?
To: <billdz.geo@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <BLU133-W39C9AB101C3DDC8740C382A9770@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Bill,
One other thing is to focus on the beginning and end of the passes, versus the
center. The rate of change in the Doppler shift is the worst right at the
middle of the pass (time of closest approach). Similarly, low elevation
passes have less shift change than higher ones, and higher orbit satellites
(e.g. AO-07) have less shift change than low orbit ones (e.g. VO-52).
Another thought is to use your own RIT to compensate for the other station's
change, especially on the birds with 2m uplinks. That way you can hear him
clearly without changing your own uplink.
Announcing you're running HDX will help if the operator on the other end is
experienced. An inexperienced operator probably has enough to worry about,
without trying to understand what to do with this new challenge. I worked an
HDX operator a long time ago on RS-12/13, I think, and was puzzled why he was
so difficult to work. Then I got his QSL card, listing the equipment, and
understood. It was odd enough that I remember the contact to this day.
Best wishes (that you find a second rig...),
Greg KO6TH
> Date: Sun, 19 Apr 2009 07:13:10 -0700
> From: billdz.geo@xxxxx.xxx
> CC: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Linear sat half-duplex operating tips?
>
>
> I have been operating the linear sats over the past week on half-duplex,
using a single IC-7000 controlled by SatPC32. I've made several contacts, but
it has been quite difficult. Obviously the best remedy is to get a second rig
and run full duplex, but in the meantime, does anyone have any tips for
successful half-duplex operation?
>
> One tip I received from NJ1H is to announce at the start that I am running
half duplex, since most stations manually adjust the uplink so that the
> downlink stays constant. If the other station knows I am running half-
duplex, he should adjust the downlink instead of the uplink.
>
> Any other suggestions?
>
> 73, Bill NZ5N
>
>
>
> _______________________________________________
> 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
_________________________________________________________________
Rediscover Hotmail?: Get quick friend updates right in your inbox.
http://windowslive.com/RediscoverHotmail?ocid=TXT_TAGLM_WL_HM_Rediscover_Updat
es2_042009
------------------------------
Message: 10
Date: Mon, 20 Apr 2009 20:57:59 -0700
From: Michael J Finn <wb7qxu@xxxx.xxx>
Subject: [amsat-bb] Re: AMSAT-BB Digest, Vol 4, Issue 188
To: amsat-bb@xxxxx.xxx
Message-ID: <20090420.205759.4524.1.wb7qxu@xxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Does anyone do Satellite packet? If so what kind of TNC is needed. Can a
Kam KPC-3+ used for VHF packet work? or do you need a different TNC.?
Are there many birds that forward messages around the globe like years
ago when pacsats were famous?
Thanks
mike
____________________________________________________________
Diamond Cleaning Solutions offers a range of pressure washing services for
commercial and domestic c
http://thirdpartyoffers.juno.com/TGL2141/fc/HiMzbGkwGWaEkHOaMh5uaIK4aTTLSUcGNh
rR8H3i8Bgjk2c0nQ/
------------------------------
Message: 11
Date: Tue, 21 Apr 2009 00:51:51 -0400
From: "Robert Bruninga" <bruninga@xxxx.xxx>
Subject: [amsat-bb] Vol 4, Issue 188 Packet Satellites?
To: "'Michael J Finn'" <wb7qxu@xxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <D684E8B2E8D140D2B98561F9858C21AB@xxxxx.xxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
> Does anyone do Satellite packet?
> If so what kind of TNC is needed.
As a tangential response, our next satellite which will do the
same APRS packet relay as PCSAT and the ISS will use the new
Byonics all-on-a-board Packet TNC/Radio/Telemetry system. This
makes it possible to build a packet satellite out of a single
3.4" square board and 5 NiCd' batteries and that is all you need
for a tiny APRS satellite.
The board is called the MT-TT4 which is a Microtracker APRS
system. It has a transceiver, and not just a transmitter. It
has all the functions of a KPC-3 including APRS digipeating,
APRS telemetry and it even has a KEYBOARD interface and a
MULTI-LINE text display for APRS messaging. See
http://www.byonics.com/microtrak/mt-tt4.php
We are ordering a bunch of them on the APRS Space Channel of
145.825 and hope to encourage other schools and universities to
consider including one of these packet transponders in their
missions. If we can get up to a dozen of these in space, we
will have almost global coverage 24 hours a day from anywhere on
the planet!
> Can a Kam KPC-3+ used for VHF packet work?
Absolutely. It is one of the best TNC's for setting up an APRS
digipeater. Look at the USA map in this month's QST to see the
whole USA coverage map for APRS. If your area does not have
good converage, please consider setting up a digipeater to serve
travelers when they are in your area.
> Are there many birds that forward messages
> around the globe like years
> ago when pacsats were famous?
Not really, but the ISS, and PCSAT and the others we hope to fly
do something similar, but the messages are not "forwarded" but
are LIVE anywhre on the planet. Any packets relayed in the
footprint, are picked up by volunteer grounds sattions and fed
live into the internet where they go everywhere on the globe.
Then the go from the internet back to RF in the area of the
intended recepient. Please take a look at this Universal Ham
Radio Text Messaging System: www.aprs.org/aprs-messaging.html
Bob, WB4APR
> Thanks
> mike
> ____________________________________________________________
> Diamond Cleaning Solutions offers a range of pressure washing
> services for commercial and domestic c
> http://thirdpartyoffers.juno.com/TGL2141/fc/HiMzbGkwGWaEkHOaMh
> 5uaIK4aTTLSUcGNhrR8H3i8Bgjk2c0nQ/
> _______________________________________________
> 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: 12
Date: Tue, 21 Apr 2009 10:31:49 +0100
From: "Jim Heck" <jimlist@xxxxxx.xx.xxx>
Subject: [amsat-bb] Re: FW: PBH Flight 9 - KC2TUA-8 Heading Towards
Azores and UK
To: <bruninga@xxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <OLECJJCJBEHDCCHICKFFKECHFOAA.jimlist@xxxxxx.xx.xxx>
Content-Type: text/plain; charset="windows-1250"
Hi Folks,
Sadly, I dont have an antenna for 10 MHz, but I know a man who does!! Does
anyone
know if the ballon is still transmitting??
73 Jim G3WGM
> -----Original Message-----
> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxxxx
> Behalf Of Robert Bruninga
> Sent: 21 April 2009 00:00
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] FW: PBH Flight 9 - KC2TUA-8 Heading Towards Azores and
UK
>
>
> Long-life balloon headed for Azores and UK!
> Has APRS on 144.39 and HF CW beacon on 10.146.840 MHz
> Latest map position can be found here:
> http://tinyurl.com/dmp3dh
>
> Please ask all hams w/HF capabilities listen and send
> their results to pbhdata@xxxxx.xxx
>
> Thanks so much for your help!
>
> Tom Triebwasser
>
>
>
> _______________________________________________
> 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
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.0.238 / Virus Database: 270.12.1/2069 - Release Date: 04/20/09
10:36:00
>
------------------------------
Message: 13
Date: Tue, 21 Apr 2009 03:12:00 -0700
From: "Nitin Muttin [VU3TYG]" <vu3tyg@xxxxxxxxxx.xxx>
Subject: [amsat-bb] AMSAT INDIA April Newsletter
To: amsat-bb@xxxxx.xxx
Message-ID: <abc2c74f3d6bd3e9f547369aa38165b9@xxx.xx.xx.xx>
Content-Type: text/plain; charset="iso-8859-1"
All,
Greetings from AMSAT INDIA. April 2009 newsletter is available at
www.amsatindia.org/Newsletter .
Contents :
1. VO-52 award update.
2. AMSAT INDIA update.
3. Space science in class rooms.
4. Program details for the AMSAT INDIA workshop
5. AGM Notice.
6. SMD Wideband Preamp by VU2POP.
7. Yagi antenna designs by DK7ZB
8. News from AMSAT organizations.
73's , Nitin [VU3TYG]
www.amsatindia.org
________________________________________________
------------------------------
Message: 14
Date: Tue, 21 Apr 2009 08:22:10 -0500
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
Subject: [amsat-bb] Re: VHF Packet was - Re: AMSAT-BB Digest, Vol 4,
Issue 188
To: <amsat-bb@xxxxx.xxx>
Message-ID: <000701c9c284$2dfc2260$89f46720$@xxx>
Content-Type: text/plain; charset="us-ascii"
Hi Mike,
> Can a Kam KPC-3+ used for VHF packet work?
Your TNC should work well ... monitor on 145.800 and 145.825 MHz with
PASSALL = ON in the TNC. The 145.825 frequency is the one usually used for
spacecraft APRS packet but the ISS has been on 145.800 up & down for
digipeating this past week.
While the syntax of the commands you type into your TNC may differ from the
examples I used for an MFJ TNC-2 you can likely get on the air with the
settings I have summarized at:
http://home.comcast.net/~k9jkm/ARISS_Packet_How_To/
ISS digi is workable with less than 5 watts and a 2M vertical. PCSAT is
workable when its in full sunlight and I generally have better luck with a
small (3-element) 2M beam on that bird.
--
73 de JoAnne K9JKM
k9jkm@xxxxx.xxx
Editor, AMSAT News Service
Copy Editor, AMSAT Journal
------------------------------
Message: 15
Date: Tue, 21 Apr 2009 20:15:13 +0300
From: ps8rf ps8 <ps8rf@xxxxxxx.xxx>
Subject: [amsat-bb] Re: UT1FG/MM
To: <amsat-bb@xxxxx.xxx>
Message-ID: <BAY103-W25D8562C7A84E81F90ED13E0770@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hello,
I am new here in forum. There are 4 days I am trying to communicate with
Yuri, UT1FG via AO -7, but not know why he did not answer me. The signal is on
average 5 / 7 and I hear on the satellite downlink signal to very good. The
first time I heard it was between the coast of Africa and Europe he called in
his local language. Do not really know what is happening. I am very willing to
talk with him and get that hard contact.
73
Piraja, PS8RF
_________________________________________________________________
Messenger 2009: Instale j?!
http://download.live.com
------------------------------
_______________________________________________
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 4, Issue 190
****************************************
Read previous mail | Read next mail
| |
