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CX2SA > SATDIG 19.12.08 01:35l 495 Lines 18277 Bytes #999 (0) @ WW
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Sent: 081218/2331Z @:CX2SA.LAV.URY.SA #:59377 [Minas] FBB7.00e $:59377_CX2SA
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: IC-910H data port receiving (Dave Guimont)
2. Kantronics data engine bat/backup (Peter Gibson)
3. NEW DXPEDITION on Namibia (Dimitrios Pallis)
4. FO-29 Brazil-Florida (Luciano G Nachif)
5. ISS Packet Today (David Barber)
6. ISS Packet 13.44utc UK Pass (David Barber)
7. Re: ISS Packet 13.44utc UK Pass (Ransom, Kenneth G. (JSC-OC)[BAR])
8. what is QRP (Jim Danehy)
9. Re: what is QRP (Nigel Gunn G8IFF/W8IFF)
10. Re: what is QRP (Jim Danehy)
11. Re: what is QRP (n3tl@xxxxxxxxx.xxxx
----------------------------------------------------------------------
Message: 1
Date: Wed, 17 Dec 2008 13:01:22 -0800
From: Dave Guimont <dguimon1@xxx.xx.xxx>
Subject: [amsat-bb] Re: IC-910H data port receiving
To: Peter <roi@xxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<20081217210125.CMNH26227.cdptpa-
omta05.mail.rr.com@xxxxxxxxxxxx.xxx.xx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
>
>I am trying to receive packet from my data port to the audio in of the
>computer, unfortunately I have not been successful. I have a 6 pin mini
>din connector with bare wires at one end, I buzzed out the data out, ground
>is the shell, and made the connection to the stereo plug,
Hi Pete,
I had the same problem using an old mouse connector.
No gnd connection to pin #2, only the shell was grounded, and no
connection was made.
I went back to my junk box, found another mouse, and pin #2 had a
wire connection. The 9600 baud connection is pin #4.
And with Paul's, (KB5MU) help I got connected on local packet, so my
rf connection is working.
Still no joy on COMPASS, but I'm reworking the programs in an attempt
to access it...
73, Dave, WB6LLO
dguimon1@xxx.xx.xxx
Disagree: I learn....
Pulling for P3E...
------------------------------
Message: 2
Date: Wed, 17 Dec 2008 21:40:24 -0000
From: "Peter Gibson" <petergibson7@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Kantronics data engine bat/backup
To: <AMSAT-BB@xxxxx.xxx>
Message-ID: <000001c96090$1231a3d0$3694eb70$@xxx>
Content-Type: text/plain; charset="us-ascii"
Charlie, N5TD
Thank you for your most constructed reply it was most helpful not like some
others
73's Pete G7LJA
------------------------------
Message: 3
Date: Wed, 17 Dec 2008 21:03:50 +0000
From: Dimitrios Pallis <mc90606@xxxxxxx.xxx>
Subject: [amsat-bb] NEW DXPEDITION on Namibia
To: <amsat-bb@xxxxx.xxx>
Message-ID: <COL111-W300455DB2809BFF091B36CF8F20@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hello Oms i would like to inform you for a new DXpedition on NamibiaDates of
operation will be from moonrise on 7th to moonset on 16th January 2009. QTH
will be in Luderitz Namibia, grid locator JG73NI.
Their main target is to activate Namibia on 50, 144, 432 and 1296 MHz EME.
At the same time they will be QRV for transatlantic Tropo on 144 and 432 and
on satellite (AO-7, FO-29 and AO-51).
The operators will be ZS6WB Hal, ZS6OB Pine, ZS6BUG Dick, ZS6AC Sarel, N7BHC
Dave, HB9CRQ Dan.
A good oportunity for a New One for a lot of us
Read more:http://hb9q.ch/joomla/index.php
Dimitrios Pallis (JIMMY)73 de SW1JGWwww.sw1jgw.com
_________________________________________________________________
Send e-mail faster without improving your typing skills.
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008
------------------------------
Message: 4
Date: Thu, 18 Dec 2008 00:00:53 -0400
From: "Luciano G Nachif" <nachif@xxxxx.xxx.xx>
Subject: [amsat-bb] FO-29 Brazil-Florida
To: "amsat-bb" <amsat-bb@xxxxx.xxx>
Message-ID: <KC20HH$54FD637F985E2C5A49DE5CC885736705@xxxxxxxxxxxxx>
Content-Type: text/plain; charset=iso-8859-1
I was on FO-29 at 03:38 UTC, 18 Dec 08, orbit # 60,927, around 435.850 calling
CQ but heard no SSB stations at all.
There are some windows between GG29qn and Florida, USA. I will be waiting on
those who would like to work that grid for the next few days time. Shoot me an
email if you want try it.
73,
Luciano PT9KK
nachif@xxxxx.xxx.xx
Campo Grande, MS
GG29qn Brazil
------------------------------
Message: 5
Date: Thu, 18 Dec 2008 10:54:12 -0000
From: "David Barber" <david.barber@xxxxxxxxxxxxx.xx.xx>
Subject: [amsat-bb] ISS Packet Today
To: <amsat-bb@xxxxx.xxx>, <sarex@xxxxx.xxx>
Message-ID: <CFA4F46086DD42CC9469775590650A7C@xxxxxxxx>
Content-Type: text/plain; charset="us-ascii"
UK / Europe Passes 08.58utc & 10.33utc
1200bps downlink on (145.825) but it doesn't seem to be listening today!
David
G8OQW
------------------------------
Message: 6
Date: Thu, 18 Dec 2008 14:35:12 -0000
From: "David Barber" <david.barber@xxxxxxxxxxxxx.xx.xx>
Subject: [amsat-bb] ISS Packet 13.44utc UK Pass
To: <amsat-bb@xxxxx.xxx>, <sarex@xxxxx.xxx>
Message-ID: <EA1C9FFEBB9749EAA82CB23DE97052F3@xxxxxxxx>
Content-Type: text/plain; charset="us-ascii"
Accessible again this pass (1200bps) but something up there has changed.
Very quiet today (few stations) and very difficult to get through in
comparison to recent days.
David
G8OQW
------------------------------
Message: 7
Date: Thu, 18 Dec 2008 09:42:55 -0600
From: "Ransom, Kenneth G. (JSC-OC)[BAR]" <Kenneth.G.Ransom@xxxx.xxx>
Subject: [amsat-bb] Re: ISS Packet 13.44utc UK Pass
To: <david.barber@xxxxxxxxxxxxx.xx.xx>, <amsat-bb@xxxxx.xxx>,
<sarex@xxxxx.xxx>
Message-ID:
<A2862DA1C49F4145AF6C2A4528294035025637F8@xxxxxxxxxx.xxx.xxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
When the Russian VHF communications system is active (usually in range
of Russia), that can desense the amateur radio a bit making it harder to
be heard.
Kenneth - N5VHO
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of David Barber
Sent: Thursday, December 18, 2008 8:35 AM
To: amsat-bb@xxxxx.xxxx sarex@xxxxx.xxx
Subject: [amsat-bb] ISS Packet 13.44utc UK Pass
Accessible again this pass (1200bps) but something up there has changed.
Very quiet today (few stations) and very difficult to get through in
comparison to recent days.
David
G8OQW
_______________________________________________
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: 8
Date: Thu, 18 Dec 2008 11:58:53 -0500
From: "Jim Danehy" <jdanehy@xxxxx.xx.xxx>
Subject: [amsat-bb] what is QRP
To: <amsat-bb@xxxxx.xxx>
Message-ID: <4300A4967B814ADB8934B00135B463F4@xxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
QRP is a measure of the transmitter output . . . on a practical basis how
would an operator accurately measure the ERP if you were using ERP (effective
radiated power) as a QRP benchmark . . . you would need instrumentation to
measure the feedline losses and sophisticated instrumentation to measure the
gain of an antenna . . . most of that type of instrumentation is beyond the
average amateur radio operator . . . . but most do have access or use of a
watt meter . . . . thus the simple way of calculating QRP . . . ERP is used
primarily in satellite operations because it affects the transponders (not FM
repeaters)
I have had several private emails in response to my comments about QRP . . . I
have seen folks operate the CQ WW CW contest in the QRP category with stacked
beams or monoband beams . . . . I have never seen a definition of QRP that
went into ERP . . . . they just use the transmitter output with all of the
ambiguities that brings . . . have fun
Jim W9VNE
------------------------------
Message: 9
Date: Thu, 18 Dec 2008 17:04:10 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: what is QRP
To: Jim Danehy <jdanehy@xxxxx.xx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <494A828A.5040603@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
QRP is not generally based on ERP.
It's usually taken to be 10W PEP SSB or 5W carrier power max for other modes.
I think QRP on sats used to be considered to be less than 10W ERP.
It's not difficult to estimate feeder loss and antenna gain.
Jim Danehy wrote:
> QRP is a measure of the transmitter output . . . on a practical basis how
would an operator accurately measure the ERP if you were using ERP (effective
radiated power) as a QRP benchmark . . . you would need instrumentation to
measure the feedline losses and sophisticated instrumentation to measure the
gain of an antenna . . . most of that type of instrumentation is beyond the
average amateur radio operator . . . . but most do have access or use of a
watt meter . . . . thus the simple way of calculating QRP . . . ERP is used
primarily in satellite operations because it affects the transponders (not FM
repeaters)
>
> I have had several private emails in response to my comments about QRP . . .
I have seen folks operate the CQ WW CW contest in the QRP category with
stacked beams or monoband beams . . . . I have never seen a definition of QRP
that went into ERP . . . . they just use the transmitter output with all of
the ambiguities that brings . . . have fun
>
> Jim W9VNE
> _______________________________________________
> 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
>
--
<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Nigel A. Gunn. G8IFF W8IFF (have also held KC8NHF, M0NHF, 9H3GN)
1865 El Camino Drive, Xenia, OH 45385-1115, USA 937 825 5032
e-mail nigel@xxxxx.xxx www http://www.ngunn.net
Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pig #385,
Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK, MKARS, ALC
<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
------------------------------
Message: 10
Date: Thu, 18 Dec 2008 12:22:21 -0500
From: "Jim Danehy" <jdanehy@xxxxx.xx.xxx>
Subject: [amsat-bb] Re: what is QRP
To: <nigel@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <18872DAE158144A5AEA971A582CFF910@xxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=response
QRP folks do not ESTIMATE . . . . go to a VHF UHF convention and watch the
antenna measurements . . . . of course you can SPECULATE or GUESS but that
is the ambiguity that is introduced . . . a more accurate means of
measuring QRP is the measurement of output power that has been in use by the
amateur community for the six decades I have been around . . . antenna gain
measurement is not simple . . . it is the execution of the assembly and
construction ( the devil is in the details ) of an antenna . . . keep the
guess work out of it . . . there was an advertisement some years ago for the
ALPHA Amps . . . "life is too short for QRP" . . . if the goal is to set
aside a frequency or repeater for challenged signals (compromised antennas
and low power rigs ) that is fine . . . express it in the terms you want to
convey . . . . QRP for most of the amateur community is measuring 5 watts
output at the rig . . .if you want : tell them HT use only with Arrow, Elk,
eggbeater and vertical antennas . . . . then you will effectively
communicate your goal . . if that is your goal . . . . QRP is not a
relevant term if you want to have a place for HTs with small compromised
antennas . . . folks get lazy and use short cuts . . . unfortunately . . . .
Jim W9VNE
----- Original Message -----
From: "Nigel Gunn G8IFF/W8IFF" <nigel@xxxxx.xxx>
To: "Jim Danehy" <jdanehy@xxxxx.xx.xxx>
Cc: <amsat-bb@xxxxx.xxx>
Sent: Thursday, December 18, 2008 12:04 PM
Subject: Re: [amsat-bb] what is QRP
> QRP is not generally based on ERP.
> It's usually taken to be 10W PEP SSB or 5W carrier power max for other
> modes.
>
> I think QRP on sats used to be considered to be less than 10W ERP.
> It's not difficult to estimate feeder loss and antenna gain.
>
>
> Jim Danehy wrote:
>> QRP is a measure of the transmitter output . . . on a practical basis how
>> would an operator accurately measure the ERP if you were using ERP
>> (effective radiated power) as a QRP benchmark . . . you would need
>> instrumentation to measure the feedline losses and sophisticated
>> instrumentation to measure the gain of an antenna . . . most of that type
>> of instrumentation is beyond the average amateur radio operator . . . .
>> but most do have access or use of a watt meter . . . . thus the simple
>> way of calculating QRP . . . ERP is used primarily in satellite
>> operations because it affects the transponders (not FM repeaters) I have
>> had several private emails in response to my comments about QRP . . . I
>> have seen folks operate the CQ WW CW contest in the QRP category with
>> stacked beams or monoband beams . . . . I have never seen a definition of
>> QRP that went into ERP . . . . they just use the transmitter output with
>> all of the ambiguities that brings . . . have fun Jim W9VNE
>> _______________________________________________
>> 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
>>
>
>
> --
> <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
> Nigel A. Gunn. G8IFF W8IFF (have also held KC8NHF, M0NHF, 9H3GN)
> 1865 El Camino Drive, Xenia, OH 45385-1115, USA 937 825 5032
> e-mail nigel@xxxxx.xxx www http://www.ngunn.net
> Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pig #385,
> Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK, MKARS, ALC
> <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
>
------------------------------
Message: 11
Date: Thu, 18 Dec 2008 17:27:15 +0000
From: n3tl@xxxxxxxxx.xxx
Subject: [amsat-bb] Re: what is QRP
To: nigel@xxxxx.xxxx Jim Danehy <jdanehy@xxxxx.xx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<121820081727.1843.494A87F2000D5A910000073322216128369B0A02D2089B9A019C0
4040A0DBF049BCC02@xxx.xxx>
Content-Type: text/plain
Hey everyone,
During my longest period of on-air activity (i.e., spring 1983 to early 1992),
I really enjoyed CW QRP work. During that time - and since getting back on the
air pretty much full time - I have used the 5-watt CW/10-watt PEP benchmark
that Nigel mentions here.
Without access to the kind of sophisticated instrumentation Jim refers to in
his original post, I take the compromise step of getting fairly close by using
the utilities on these sites:
http://www.ocarc.ca/coax.htm
http://www.csgnetwork.com/antennaecalc.html
The former provides an estimate of the line loss I experience given any setup
I try, and the latter then provides me with an estimate of ERP/EIRP with that
setup.
All of that being said, and accepting the results of the calculators on the
sites listed above, it appearws I can achieve unambiguous QRP (i.e., less than
5 watts CW/10watts PEP rf out AND less than 5 watts CW/10watts PEP ERP/EIRP)
here. I haven't made a contact yet on any of the CW/SSB satellites at that
power level - but only because nobody answered my CW CQs on VO-52 the other
day - the only time and satellite I've tried so far using very low power. I
have plenty of contacts on AO-51, AO-27, SO-50 and a couple via the ISS
repeater at inarguably QRP power levels.
73 to all,
Tim - N3TL
-------------- Original message from Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>:
--------------
> QRP is not generally based on ERP.
> It's usually taken to be 10W PEP SSB or 5W carrier power max for other
modes.
>
> I think QRP on sats used to be considered to be less than 10W ERP.
> It's not difficult to estimate feeder loss and antenna gain.
>
>
> Jim Danehy wrote: > QRP is a measure of the transmitter output . . . on a
practical basis how would an operator accurately measure the ERP if you were
using ERP (effective radiated power) as a QRP benchmark . . . you would need
instrumentation to measure the feedline losses and sophisticated
instrumentation to measure the gain of an antenna . . . most of that type of
instrumentation is beyond the average amateur radio operator . . . . but most
do have access or use of a watt meter . . . . thus the simple way of
calculating QRP . . . ERP is used primarily
> in satellite operations because it affects the transponders (not FM
repeaters)
> > > I have had several private emails in response to my comments about QRP .
. . I
> have seen folks operate the CQ WW CW contest in the QRP category with
stacked
> beams or monoband beams . . . . I have never seen a definition of QRP that
went
> into ERP . . . . they just use the transmitter output with all of the
> ambiguities that brings . . . have fun
> >
> > Jim W9VNE
> > _______________________________________________
> > 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
> >
>
>
> --
> <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
> Nigel A. Gunn. G8IFF W8IFF (have also held KC8NHF, M0NHF, 9H3GN)
> 1865 El Camino Drive, Xenia, OH 45385-1115, USA 937 825 5032
> e-mail nigel@xxxxx.xxx www http://www.ngunn.net
> Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pig #385,
> Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK, MKARS, ALC
> <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
> _______________________________________________
> 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 3, Issue 658
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