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CX2SA > SATDIG 08.08.09 17:28l 1019 Lines 30462 Bytes #999 (0) @ WW
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Today's Topics:
1. Re: Avoiding statics on helix antennas (i8cvs)
2. Re: New satellite rigs? (Bob McGwier)
3. uhf amp (Jerry)
4. Receiving ISS Packet (w6zkh@xxxxxxx.xxxx
5. Re: Receiving ISS Packet (Roger Kolakowski)
6. FW: [keps] Satellites Added to AMSAT KEPs (Randy)
7. [keps] Satellites Added to AMSAT KEPs (Randy)
8. Re: [keps] Satellites Added to AMSAT KEPs
(Nigel Gunn G8IFF/W8IFF)
9. Re: New satellite rigs? (Sebastian)
10. Re: New satellite rigs? (Gary "Joe" Mayfield)
11. Re: New satellite rigs? (John Geiger)
12. Re: New satellite rigs? (Simon (HB9DRV))
13. PCSAT report 2009-08-08 (Rob Hardenberg PE1ITR)
14. POLLUX TLM - via remote station (Fabiano Moser)
15. pollux-1 and castor report (Rob Hardenberg PE1ITR)
16. Re: Avoiding statics on helix antennas (i8cvs)
17. Packet software (Randy)
18. Re: Antenna project with 2 ELK antennas (i8cvs)
19. Re: Packet software (Tim Lilley)
----------------------------------------------------------------------
Message: 1
Date: Fri, 7 Aug 2009 22:01:32 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: Avoiding statics on helix antennas
To: "Joe" <nss@xxx.xxx>
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Message-ID: <003c01ca1799$dc431760$0201a8c0@xxx.xx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Joe WB9SBD
The ARRL Handbook explain that you must consider the velocity factor.To put a
shorted quarter-wave coax line at the converter input as a short for the
statics is easer than to find out from where the statis came from !
73" de
i8CVS Domenico
----- Original Message -----
From: Joe
To: i8cvs
Cc: Lars Petersen ; AMSAT-BB
Sent: Wednesday, August 05, 2009 5:52 PM
Subject: Re: [amsat-bb] Re: Avoiding statics on helix antennas
don't forget the velocity factor too!
My first thought was to try to find out where the static is coming from in
the firstplace and fix that. Why put a band-aid on a cut when you prevent the
cut in the first place?
Joe WB9SBD
i8cvs wrote:
Hi Lars, OZ1BXM
The shorted quarter-wave coax line suggested in the ARRL Handbook 2008 and
2009 pages 23.20-21 will work great because it is a short circuit for the
static electricity and a theoretically infinite impedance at the resonant
frequency so that for the RF input signal it is completely ignored by the
input stage of a converter or preamplifier.
Remember that a quarter-wave transmission line when shorted at one end
shows an infinite impedance in theory at the open end as you can see using
the Smith Chart.
If you enlarge a shorted quarter-wave by any even or odd number of 1/2
wavelenght of coax line thing do not changes because a 1/2 wavelenght of
transmission line represents a full turn of the Smith Chart.
Do it as suggested by the Handbook !
73" de
i8CVS Domenico
----- Original Message -----
From: "Lars Petersen" <lars.petersen@xxxxx.xxx>
To: <AMSAT-BB@xxxxx.xxx>
Sent: Tuesday, August 04, 2009 6:01 PM
Subject: [amsat-bb] Avoiding statics on helix antennas
Hello AMSAT list,
I have a problem caused by static electricity building up on my two helix
antennas (23 cm and 13 cm). Two converters have already been zapped, so I
have to do something about it.
What measure would you recommend to avaoid statics building up on helix
antennas?
Does anyone have experience using the shorted quarter-wave-stub mentioned
in
"The ARRL Handbook 2008" pages 23.20-21?
Vy 73, Lars Petersen, OZ1BXM,
AMSAT-Member 36222,
oz1bxm@xxxxx.xxx
www.oz1bxm.dk
_______________________________________________
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
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------------------------------
Message: 2
Date: Fri, 07 Aug 2009 17:02:06 -0400
From: Bob McGwier <rwmcgwier@xxxxx.xxx>
Subject: [amsat-bb] Re: New satellite rigs?
To: John Geiger <aa5jg@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4A7C964E.5030205@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
John Geiger wrote:
> Is anyone hearing any rumors of new satellite rigs on the horizon (pun
intended)? The TS2000 and Icom 910H are hitting 9 years on the market, and
Yaesu isn't currently marketing a satellite rig.
>
> 73s Jon AA5JG
>
You wouldn't be talking about the Flex Radio, Flex5000 with the V/U
module would you? It is a fully functional satellite radio, twin IF's,
full duplex, etc. The "on the horizon" part is because the V/U module
will not be available for a couple of months.
http://www.flex-radio.com/Products.aspx?topic=F5K_upgrades
Bob
N4HY
--
(Co)Author: DttSP, Quiktrak, PowerSDR, GnuRadio
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
"You don't need to see the whole staircase, just
take the first step.", MLK.
Twitter:rwmcgwier
Active: Facebook,Myspace,LinkedIn
------------------------------
Message: 3
Date: Fri, 7 Aug 2009 16:24:07 -0500
From: "Jerry" <W0SAT@xxx.xxx>
Subject: [amsat-bb] uhf amp
To: <amsat-bb@xxxxx.xxx>
Message-ID: <BLU0-SMTP6DE8BE0D64B16B7C291D8E40B0@xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Hi: I,m in a need of a manual for a TE Systems RF power amp
Model 4410G .
I would settle for a copy or schematic.
Jerry w0sat
------------------------------
Message: 4
Date: Fri, 7 Aug 2009 22:08:07 +0000 (UTC)
From: w6zkh@xxxxxxx.xxx
Subject: [amsat-bb] Receiving ISS Packet
To: amsat-bb <amsat-bb@xxxxx.xxx>
Message-ID:
<1964437884.12187861249682887368.JavaMail.root@xxxxxxx.xxxxxxxxxxx.xx.xx
xx.xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
I am having a problem receiving packets from ISS. Good signals, data LED
lights, but nothing shows on the screen. If I monitor normal 2m packet freq or
APRS channel, I have no problems. I am monitoring the 145.825 mhz freq and I
guess it is still 1200 baud, not 9600? Anyone with any ideas. I would
eventually like to set up a station to operate there.
John W6ZKH
DM06
------------------------------
Message: 5
Date: Fri, 7 Aug 2009 19:22:25 -0400
From: "Roger Kolakowski" <rogerkola@xxx.xxx>
Subject: [amsat-bb] Re: Receiving ISS Packet
To: <w6zkh@xxxxxxx.xxx>, "amsat-bb" <amsat-bb@xxxxx.xxx>
Message-ID: <005801ca17b5$ed0aae20$0300a8c0@xxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Turn your PASSALL ON in case you are only getting partial packets?
Roger
WA1KAT
----- Original Message -----
From: <w6zkh@xxxxxxx.xxx>
To: "amsat-bb" <amsat-bb@xxxxx.xxx>
Sent: Friday, August 07, 2009 6:08 PM
Subject: [amsat-bb] Receiving ISS Packet
> I am having a problem receiving packets from ISS. Good signals, data LED
lights, but nothing shows on the screen. If I monitor normal 2m packet freq
or APRS channel, I have no problems. I am monitoring the 145.825 mhz freq
and I guess it is still 1200 baud, not 9600? Anyone with any ideas. I would
eventually like to set up a station to operate there.
>
> John W6ZKH
> DM06
>
>
> _______________________________________________
> 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: Fri, 7 Aug 2009 19:26:05 -0400
From: "Randy" <RSwart1@xxxxx.xx.xxx>
Subject: [amsat-bb] FW: [keps] Satellites Added to AMSAT KEPs
To: <amsat-bb@xxxxx.xxx>
Message-ID: <002801ca17b6$6f744ce0$0301a8c0@xxxx>
Content-Type: text/plain; charset="us-ascii"
I also asked them to add them to their satellite pass prediction page..
Randy - N2CUA
-----Original Message-----
From: keps-bounces@xxxxx.xxx [mailto:keps-bounces@xxxxx.xxxx On Behalf Of
Ray Hoad
Sent: Thursday, August 06, 2009 11:34 PM
To: AMSAT KEP
Subject: [keps] Satellites Added to AMSAT KEPs
Pollux Catalog Number 35693 and CASTOR Catalog Number 35694 have been added
to the AMSAT KEPs this week.
I am not sure of the Catalog Number for Dragonsat (BEVO-1 and
AGGIESAT-2) because AF Space Command had not yet listed in recent launches.
Does someone know the Dragonsat Catalog Number?
------------------------------
Message: 7
Date: Fri, 7 Aug 2009 19:29:15 -0400
From: "Randy" <RSwart1@xxxxx.xx.xxx>
Subject: [amsat-bb] [keps] Satellites Added to AMSAT KEPs
To: <amsat-bb@xxxxx.xxx>
Message-ID: <002901ca17b6$e109e810$0301a8c0@xxxx>
Content-Type: text/plain; charset="us-ascii"
-----Original Message-----
From: Randy [mailto:RSwart1@xxxxx.xx.xxxx
Sent: Friday, August 07, 2009 7:26 PM
To: 'amsat-bb@xxxxx.xxxx
Subject: FW: [keps] Satellites Added to AMSAT KEPs
I also asked them to add them to their satellite pass prediction page..
Randy - N2CUA
-----Original Message-----
From: keps-bounces@xxxxx.xxx [mailto:keps-bounces@xxxxx.xxxx On Behalf Of
Ray Hoad
Sent: Thursday, August 06, 2009 11:34 PM
To: AMSAT KEP
Subject: [keps] Satellites Added to AMSAT KEPs
Pollux Catalog Number 35693 and CASTOR Catalog Number 35694 have been added
to the AMSAT KEPs this week.
I am not sure of the Catalog Number for Dragonsat (BEVO-1 and
AGGIESAT-2) because AF Space Command had not yet listed in recent launches.
Does someone know the Dragonsat Catalog Number?
------------------------------
Message: 8
Date: Sat, 08 Aug 2009 01:17:05 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: [keps] Satellites Added to AMSAT KEPs
To: amsat-bb@xxxxx.xxx
Message-ID: <4A7CD211.5050607@xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8; format=flowed
Strange.
I've been including it with the ANDES keps for tha past week.
DRAGONSAT
1 35690U 09038B 09219.55708264 .00020612 00000-0 10814-3 0 80
2 35690 051.6412 042.6502 0005132 114.2254 245.9309 15.80739453 1270
ANDE DEB (POLLUX CYLIN)
1 35691U 09038C 09219.62171878 .00031982 00000-0 16692-3 0 86
2 35691 051.6394 042.3325 0002803 065.2831 294.8846 15.80576547 1258
ANDE DEB (CASTOR CYLIN)
1 35692U 09038D 09219.62114109 .00057560 00000-0 29252-3 0 100
2 35692 051.6383 042.3292 0002923 052.2703 307.9212 15.80882859 1256
ANDE POLLUX SPHERE
1 35693U 09038E 09218.99040163 .00017548 00000-0 94816-4 0 86
2 35693 051.6400 045.6204 0003753 063.1757 296.9665 15.80231591 1157
ANDE CASTOR SPHERE
1 35694U 09038F 09218.99123853 .00009897 00000-0 55695-4 0 96
2 35694 051.6416 045.6279 0004263 064.7485 295.4003 15.79995162 1158
ANDE DEB (AVIONICS DECK)
1 35695U 09038G 09218.99104536 .00023617 00000-0 12680-3 0 85
2 35695 051.6416 045.6274 0004450 062.4684 297.6857 15.80135284 1152
>
>
> -----Original Message-----
>
> I am not sure of the Catalog Number for Dragonsat (BEVO-1 and
> AGGIESAT-2) because AF Space Command had not yet listed in recent launches.
> Does someone know the Dragonsat Catalog Number?
--
Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937
825 5032
Amateur Radio G8IFF W8IFF (was KC8NHF), e-mail nigel@xxxxx.xxx www
http://www.ngunn.net
Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pigs QRP Club
International #385,
Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK 0182, MKARS, ALC,
GCARES, XWARN.
------------------------------
Message: 9
Date: Fri, 7 Aug 2009 22:39:17 -0400
From: Sebastian <w4as@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: New satellite rigs?
To: AMSAT BB <AMSAT-BB@xxxxx.xxx>
Message-ID: <EC61B6CF-09C8-448D-8707-4EC6E2795BE3@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
Simon please buy a used IC-910H, that way you can fix the Satellite
Module!
I'm sure you can re-sell it for about the same you pay, maybe more.
I personally doubt that Icom will replace the 910H any time soon.
That rig, given it's price tag and being only for 2m/440/1.2, must not
sell very well. I would think Icom should be working on an enhanced
IC-718, which is an excellent HF rig at an extremely attractive price
range. If they added a few things to a similar rig, at a similar
price I'm sure it would sell very well.
I'm 50 myself, and my kids better not be counting on much when I go (I
plan to enjoy myself as much as possible), but I personally can't see
myself spending $10,000 on some of the rigs out there. I think we
need more inexpensive rigs so that the few new young hams can get into
the hobby. Without young blood, we are doomed.
73 de W4AS
Sebastian
On Aug 7, 2009, at 4:32 AM, Simon (HB9DRV) wrote:
> ----- Original Message -----
> From: "STeve Andre'" <andres@xxx.xxx>
>>
>> I'd like to think that Icom will come out with other radios, but
>> given
>> the current economy, will they do that, I wonder.
>>
>
> Look at the price of the IC-7600 - and that's selling well, as is the
> IC-7700.
>
> There's plenty of money for radios - so many Hams are over 50,
> children have
> fled the next, so these Hams are spending their childrens'
> inheritance. I
> would like a good UHF-SHF radio, don't want to buy the IC-910H as I
> am sure
> it'll be replaced the day after I buy it.
>
> For now I use the TS-2000...
>
> Simon Brown, HB9DRV
> www.ham-radio-deluxe.com
------------------------------
Message: 10
Date: Fri, 7 Aug 2009 22:09:20 -0500
From: "Gary \"Joe\" Mayfield" <gary_mayfield@xxxxxxx.xxx>
Subject: [amsat-bb] Re: New satellite rigs?
Cc: <amsat-bb@xxxxx.xxx>
Message-ID: <COL0-DAV49D1C4CF4A5A86B77218638A080@xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
I know it would be kind of a spendy option, but has anyone looked at the
elecraft transverters?
73,
Joe kk0sd
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Michael Pfeuffer
Sent: Friday, August 07, 2009 12:01 PM
To: John Geiger
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: New satellite rigs?
I've got high hopes for the Flex-5000 + the internal UHF/VHF module.
It's supposed to be available "late 2009".
--Mike WQ5C
John Geiger wrote:
> Is anyone hearing any rumors of new satellite rigs on the horizon (pun
intended)? The TS2000 and Icom 910H are hitting 9 years on the market, and
Yaesu isn't currently marketing a satellite rig.
>
> 73s Jon AA5JG
>
>
_______________________________________________
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: 11
Date: Fri, 7 Aug 2009 21:29:49 -0700 (PDT)
From: John Geiger <aa5jg@xxxxx.xxx>
Subject: [amsat-bb] Re: New satellite rigs?
To: AMSAT BB <AMSAT-BB@xxxxx.xxx>, Sebastian <w4as@xxxxxxxxx.xxx>
Message-ID: <348614.12683.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
I think Icom already updated the Icom 718 with the Icom 7200.
73s John AA5JG
--- On Fri, 8/7/09, Sebastian <w4as@xxxxxxxxx.xxx> wrote:
> From: Sebastian <w4as@xxxxxxxxx.xxx>
> Subject: [amsat-bb] Re: New satellite rigs?
> To: "AMSAT BB" <AMSAT-BB@xxxxx.xxx>
> Date: Friday, August 7, 2009, 9:39 PM
> Simon please buy a used IC-910H, that
> way you can fix the Satellite?
> Module!
>
> I'm sure you can re-sell it for about the same you pay,
> maybe more.
>
> I personally doubt that Icom will replace the 910H any time
> soon.???
> That rig, given it's price tag and being only for
> 2m/440/1.2, must not?
> sell very well.? I would think Icom should be working
> on an enhanced?
> IC-718, which is an excellent HF rig at an extremely
> attractive price?
> range.? If they added a few things to a similar rig,
> at a similar?
> price I'm sure it would sell very well.
>
> I'm 50 myself, and my kids better not be counting on much
> when I go (I?
> plan to enjoy myself as much as possible), but I personally
> can't see?
> myself spending $10,000 on some of the rigs out
> there.? I think we?
> need more inexpensive rigs so that the few new young hams
> can get into?
> the hobby.? Without young blood, we are doomed.
>
> 73 de W4AS
> Sebastian
>
> On Aug 7, 2009, at 4:32 AM, Simon (HB9DRV) wrote:
>
> > ----- Original Message -----
> > From: "STeve Andre'" <andres@xxx.xxx>
> >>
> >> I'd like to think that Icom will come out with
> other radios, but?
> >> given
> >> the current economy, will they do that, I wonder.
> >>
> >
> > Look at the price of the IC-7600 - and that's selling
> well, as is the
> > IC-7700.
> >
> > There's plenty of money for radios - so many Hams are
> over 50,?
> > children have
> > fled the next, so these Hams are spending their
> childrens'?
> > inheritance. I
> > would like a good UHF-SHF radio, don't want to buy the
> IC-910H as I?
> > am sure
> > it'll be replaced the day after I buy it.
> >
> > For now I use the TS-2000...
> >
> > Simon Brown, HB9DRV
> > www.ham-radio-deluxe.com
> _______________________________________________
> 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: Sat, 8 Aug 2009 10:30:06 +0200
From: "Simon \(HB9DRV\)" <simon@xxxxxx.xx>
Subject: [amsat-bb] Re: New satellite rigs?
To: "Sebastian" <w4as@xxxxxxxxx.xxx>, "AMSAT BB" <AMSAT-BB@xxxxx.xxx>
Message-ID: <56B823AA139E41F1A2DBDCF27F4B269F@xxxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Sadly I don't see many second-hand IC-190H here if at all.
If anyone in Europe has an IC-910H to sell please let me know, only really
interested in 2m / 70cms.
Simon Brown, HB9DRV
www.ham-radio-deluxe.com
----- Original Message -----
From: "Sebastian" <w4as@xxxxxxxxx.xxx>
> Simon please buy a used IC-910H, that way you can fix the Satellite
> Module!
------------------------------
Message: 13
Date: Sat, 8 Aug 2009 11:04:32 +0200 (CEST)
From: "Rob Hardenberg PE1ITR" <rob@xxxxxxxxxxx.xxx>
Subject: [amsat-bb] PCSAT report 2009-08-08
To: amsat-bb@xxxxx.xxx
Message-ID:
<34350.62.194.134.114.1249722272.squirrel@xxxxxxxx.xxxxxxxxxxx.xxx>
Content-Type: text/plain;charset=iso-8859-1
Hello,
Received some readable packets from pcsat:
!S 08:44:23 !W3ADO-1>BEACON,SGATE/1:
!S 08:44:23 !T#010,063,065,061,072,214,11111111,0001,1
!S 08:44:24 !PCSAT-11>BEACON,SGATE/1:
!S 08:44:24 !T#003,064,059,131,232,215,11111110,0010,1
!S 08:46:17 !W3ADO-1>APRS1/1:
!S 08:46:17 !Default LT1
73 Rob PE1ITR
http://www.pe1itr.com
------------------------------
Message: 14
Date: Sat, 8 Aug 2009 10:27:31 +0100
From: Fabiano Moser <fabianomoser@xxxxx.xxx>
Subject: [amsat-bb] POLLUX TLM - via remote station
To: amsat-bb <AMSAT-BB@xxxxx.xxx>
Message-ID:
<bf2deb8f0908080227p5d0eac42nb7033823fabc1bdf@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Today I decoded POLLUX telemetry, by remote station control, from my job.
Works FINE!
Fm POLLUX-1 To CQ Via TELEM <UI pid=F0 Len=101 >[10:22:40]
SYST 748737 0 0 33 0 fffe 1530 0002 1460 0015 1448 001a 04d8 000d 04e0 ffff
ffff 0156 08c4 0fbe 0038
--
73
Fabiano Moser CR7/PY5RX
ARISS-PORTUGAL (Amateur Radio on the International Space Station)
Representative at Teleconference and Portugal Telebridge Coordinator.
AMRAD/AMSAT-CT
http://www.amrad.pt/ariss.php
"There is no great talent without great will. (Honor? de Balzac)"
------------------------------
Message: 15
Date: Sat, 8 Aug 2009 11:39:38 +0200 (CEST)
From: "Rob Hardenberg PE1ITR" <rob@xxxxxxxxxxx.xxx>
Subject: [amsat-bb] pollux-1 and castor report
To: amsat-bb@xxxxx.xxx
Message-ID:
<34030.62.194.134.114.1249724378.squirrel@xxxxxxxx.xxxxxxxxxxx.xxx>
Content-Type: text/plain;charset=iso-8859-1
Received today from pullux-1 and 1 packet from castor (kd4hbo-1) on 145.825:
!S 09:24:24 !POLLUX-1>CQ,TELEM/1:
!S 09:24:25 !MEMS 748836 2.58 2.57 2.45 22.03 21.225 19.06 -1.08 0.07 1.660 -
8.28 3.31 3.10 24.21
25.22 24.76 2.60 20 19 42
!S 09:24:51 !POLLUX-1>CQ,TELEM/1:
!S 09:24:51 !SYST 748869 0 0 33 0 013a 15e8 fffe 1500 0022 1500 001c 05f0 0013
05d0 ffff ffff 0154
08c4 0fbe 003c
!S 09:27:03 !POLLUX-1>CQ,TELEM/1:
!S 09:27:03 !SYST 749001 0 0 33 0 0003 1690 0006 15b8 001c 15b0 0033 06b0 0026
06d0 ffff ffff 0154
08c6 0fbc 003c
!S 09:27:42 !POLLUX-1>CQ,TELEM/1:
!S 09:27:42 !MEMS 749034 2.57 2.57 2.45 21.771 21.09 18.990 -1.06 0.226 1.773
-8.58 4.53 -1.97
24.08 25.13 24.52 2.60 20 26 39
!S 09:28:09 !POLLUX-1>CQ,TELEM/1:
!S 09:28:09 !SYST 749067 0 0 33 0 000d 16f8 0000 15f8 0179 1600 0018 0750 0046
0728 ffff ffff 0156
08c4 0fba 0038
!S 09:31:00 !POLLUX-1>CQ,TELEM/1:
!S 09:31:00 !MEMS 749232 2.58 2.57 2.45 21.556 21.09 18.990 -1.01 0.444 1.443
-8.43 2.05 -6.98
24.10 25.11 24.46 2.60 35 34 4
!S 09:32:06 !POLLUX-1>CQ,TELEM/1:
!S 09:32:07 !MEMS 749298 2.57 2.57 2.45 21.771 21.09 18.990 -1.113 -0.119
0.559 -9.62 -2.24 8.12
24.01 25.11 24.45 2.60 3 41 38
!S 09:32:33 !POLLUX-1>CQ,TELEM/1:
!S 09:32:33 !SYST 749331 0 0 33 0 0011 1858 0154 1758 0157 1788 000e 0960 001b
0910 ffff ffff 0156
08c6 0fba 003c
!S 09:33:13 !KD4HBO-1>CQ,TELEM/1:
!S 09:33:14 !SYS 744510 65535 0 30 0 feac 0b58 ffec 09c0 fea9 0f20 ffc1 0d48
fffa 10d8 ffd5 0f98
13.8 5.0 9.9 .00 0.13 0.55 12.21 9.91 9.91 44 19 44
73 Rob PE1ITR
http://www.pe1itr.com
------------------------------
Message: 16
Date: Sat, 8 Aug 2009 14:15:28 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: Avoiding statics on helix antennas
To: "Lars Petersen" <lars.petersen@xxxxx.xxx>, "AMSAT-BB"
<amsat-bb@xxxxx.xxx>
Message-ID: <002d01ca1821$eb53b740$0201a8c0@xxx.xx>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: "Lars Petersen" <lars.petersen@xxxxx.xxx>
To: <AMSAT-BB@xxxxx.xxx>
Sent: Thursday, August 06, 2009 12:56 PM
Subject: [amsat-bb] Re: Avoiding statics on helix antennas
> Hello list,
>
> What measure would you recommend to avoid statics building up on helix
> antennas?
>
> Several suggestions have been given, both here and as PM. Thank you to you
> all! Here is a summary of the mails received:
>
> Answer 1: Try a grounded radome to keep rain and air movements off the
> antenna. (G8IFF/W8IFF)
>
Hi Lars, OZ1BXM
A grounded radom is still transparent for the static electricity and
obviously for RF as well so that a radome is unusefull to avoid statics.
> Answer 2: The shorted quarter-wave coax line suggested in the ARRL
> Handbook 2008 and 2009 pages 23.20-21 will work great because it
> is a short circuit for the static electricity and a theoretically
> infinite impedance at the resonant frequency so that for the RF input
> signal it is completely ignored by the input stage of a converter or
> preamplifier.
> If you enlarge a shorted quarter-wave by any even or odd number of 1/2
> wavelenght of coax line thing do not changes because a 1/2 wavelenght
> of transmission line represents a full turn of the Smith Chart. Do it as
> suggested by the Handbook! (I8CVS)
>
This one is a good method because the input stage do not see the very high
impedance of the shorted quarter-wave coax line so that the original Noise
Figure of the downconverter is not degraded while the static voltages are
shorted out.
> Answer 3: Can I suggest: a) A 47k resistor across the input of your
> converter. The static will have a very high impedance and I've found 47k
> will remove it without increasing the noise figure of your converter. b)
> For really severe cases: An inductor to ground. An 0805 or smaller device.
> Something that presents a couple of Kohms at the frequency of interest
> would be OK. Or perhaps a high pass filter designed for 50 ohms with
> an inductor to ground. Cut off frequency at 30% lower than 23 or
> 13cms (G0MRF).
>
A 47 k resistor or an inductor to ground of your converter implies that you
have to open the converter box and modify it.In addition a resistor shoves
inductance as well and an inductor do shoves capacitance as well so that
at 23 cm or 13 cm they will modify the input mached impedance for the
lovest Noise Figure of your downconverter.
More over a high pass filter designed for 50 ohm with an inductor to ground
has an insertion loss that in dB adds to the actual Noise Figure of your
downconverter.
>
> Answer 4: An earlier version of the ARRL handbook has a multi turn helical
> for 23cms with the usual quarter wave strip of brass soldered to the first
> quarter turn of the helix. For static protection it has about 2cm of wire
> wound around a former to make about half of a turn. This is soldered to
> the pin of the N connector and grounded. I can send you a picture later
> today. Done.(G7HIA)
>
For static protection about 2 cm of wire wound around a former to make
about half a turn and then soldered from the pin of the N connector and
ground do short out the stastic voltages but it modifies the impedance of
the helix antenna so that you have to compensate for it twiking with the
usual quarter wave strip of brass soldered to the first quarter turn of the
helix until you get again a VSWR very close to 1
> 73 de OZ1BXM Lars Petersen, Holstebro, Denmark
>
Best 73" de
i8CVS Domenico
> ----- Original Message -----
> From: "Lars Petersen" <lars.petersen@xxxxx.xxx>
> To: <AMSAT-BB@xxxxx.xxx>
> Sent: Tuesday, August 04, 2009 6:01 PM
> Subject: [amsat-bb] Avoiding statics on helix antennas
>
>
> > Hello AMSAT list,
> >
> > I have a problem caused by static electricity building up on my two
helix
> > antennas (23 cm and 13 cm). Two converters have already been zapped, so
I
> > have to do something about it.
> >
> > What measure would you recommend to avaoid statics building up on helix
> > antennas?
> >
> > Does anyone have experience using the shorted quarter-wave-stub
mentioned
> > in
> > "The ARRL Handbook 2008" pages 23.20-21?
> >
> > Vy 73, Lars Petersen, OZ1BXM,
> > AMSAT-Member 36222,
> > oz1bxm@xxxxx.xxx
> > www.oz1bxm.dk
> >
> > _______________________________________________
> > 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: 17
Date: Sat, 8 Aug 2009 08:54:26 -0400
From: "Randy" <RSwart1@xxxxx.xx.xxx>
Subject: [amsat-bb] Packet software
To: <amsat-bb@xxxxx.xxx>
Message-ID: <003001ca1827$5c7ce2c0$0301a8c0@xxxx>
Content-Type: text/plain; charset="us-ascii"
What software is everyone using and / or the most popular?
I would like to setup to send packets to ISS and would like
To do that via the computer only , no hardware TNC.
Randy - N2CUA
------------------------------
Message: 18
Date: Sat, 8 Aug 2009 14:54:56 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: Antenna project with 2 ELK antennas
To: Jean-Fran?ois M?nard <jf.va2ss@xxxxx.xxx>, "AMSAT Mailing list"
<amsat-bb@xxxxx.xxx>
Message-ID: <000e01ca1827$6eab6d40$0201a8c0@xxx.xx>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: "Jean-Fran?ois M?nard" <jf.va2ss@xxxxx.xxx>
To: "AMSAT Mailing list" <amsat-bb@xxxxx.xxx>
Sent: Thursday, August 06, 2009 10:44 PM
Subject: [amsat-bb] Antenna project with 2 ELK antennas
Hi,
I have 2 ELK antennas here, and I would like to do an experiment with
these two antennas. I would like to stack side by side, one vertical,
and one horizontal.
73
Jean-Fran?ois M?nard
VA2SS
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
AMSAT www.amsat.org / Member #37102
ARRL www.arrl.org
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Hi Jean, VA2SS
Staking 2 ELK antennas side by side,one vertical,and one horizontal
what type of polarization you plan to get ?
73" de
i8CVS Domenico
------------------------------
Message: 19
Date: Sat, 8 Aug 2009 07:10:08 -0700 (PDT)
From: Tim Lilley <n3tl@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Packet software
To: RSwart1@xxxxx.xx.xxxx amsat-bb@xxxxx.xxx
Message-ID: <887922.75540.qm@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Randy and all,
Google "AGW Packet Engine" and "UISS." The former provides a sound-card-based
TNC, and the latter is the terminal program you can run with it. This combo
works flawlessly for me with the ISS.
I hope this helps - I'll be looking for you on the ISS digipeater!
73,
Tim - N3TL
Athens, Ga. - EM84ha
________________________________
From: Randy <RSwart1@xxxxx.xx.xxx>
To: amsat-bb@xxxxx.xxx
Sent: Saturday, August 8, 2009 8:54:26 AM
Subject: [amsat-bb] Packet software
What software is everyone using and / or the most popular?
I would like to setup to send packets to ISS and would like
To do that via the computer only , no hardware TNC.
Randy - N2CUA
_______________________________________________
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 4, Issue 389
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