| |
CX2SA > SATDIG 08.01.14 21:02l 582 Lines 22971 Bytes #999 (0) @ WW
BID : AMSATBB98
Read: GUEST
Subj: AMSAT-BB-digest V9 8
Path: IZ3LSV<IK2XDE<ON4HU<CX2ACB<CX2SA
Sent: 140108/2002Z @:CX2SA.SAL.URY.SA #:2402 [Salto] FBB7.00e $:AMSATBB98
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. Finding yourself on the linear transponders (Ronald G. Parsons)
2. Worlds first 3400 MHz CubeSat (M5AKA)
3. Re: Finding yourself on the linear transponders (R.T.Liddy)
4. Re: Finding yourself on the linear transponders (Roger Kolakowski)
5. Looking for new Emotator EV-800DX (Luthfi)
6. Re: Finding yourself on the linear transponders (Jeff Griffin)
7. Antares Launch Scrubbed (B J)
8. Re: Finding yourself on the linear transponders (Clayton Coleman)
9. Re: Finding yourself on the linear transponders (Gus)
10. Re: Finding yourself on the linear transponders
(Patrick STODDARD (WD9EWK/VA7EWK))
----------------------------------------------------------------------
Message: 1
Date: Tue, 7 Jan 2014 18:59:26 -0600
From: "Ronald G. Parsons" <w5rkn@xxxxx.xxx>
To: "AMSAT-BB" <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Finding yourself on the linear transponders
Message-ID: <39B77C41ACF84910ADFB2F76C09B2025@xxxxxxxxx>
Content-Type: text/plain; charset="UTF-8"
Perhaps it?s just me, but it seems like an increasing number of operators
are trying to find their downlink by speaking into their mic while tuning up
and down the band, often plus or minus 20-30 kHz. Not only is this
disruptive to existing QSOs, it is not the most effective way to do it. My
receiver has a panadapter with a 40 KHz bandwidth, and I can see these SSB
signals swishing up and down, over and over.
If you don?t have computer control of your frequency, set up a switch by
which you can send a SHORT series of dits. Then don?t swish. Adjust your
transmitter is steps of about 3 kHz. Send a burst of dits at low power and
listen. If you don?t hear yourself, tune up or down. This way you will have
an effective way to find yourself and you won?t interrupt other QSOs
repeatedly.
Once you find yourself, make sure you are not interfering with an existing
QSO. Then refine your tuning until your frequency is nearly right. If you
are operating CW, your done. If you are operating SSB, try holding a tone
generator near your mic and adjust your transmitter or receiver until the
tone on the downlink matches the tone generator.
There is probably a free tone generator available for your smart phone.
Better yet, try computer control of your transmitter and receiver. You can
easily find an Elmer on the air if you need help.
But, PLEASE. don?t swish!
Ron W5RKN
------------------------------
Message: 2
Date: Wed, 8 Jan 2014 00:45:00 +0000 (GMT)
From: M5AKA <m5aka@xxxxx.xx.xx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Worlds first 3400 MHz CubeSat
Message-ID:
<1389141900.15784.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
UNSA-SAT1 plans to have a 3400 MHz downlink as well as downlinks in the 2400
and 5830 MHz bands, see
http://amsat-uk.org/2014/01/08/unsa-sat1-the-first-3-4-ghz-cubesat/
----
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: 3
Date: Tue, 7 Jan 2014 20:24:42 -0800 (PST)
From: "R.T.Liddy" <k8bl@xxxxxxxxx.xxx>
To: AMSAT-BB <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Re: Finding yourself on the linear transponders
Message-ID:
<1389155082.78563.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Ron,
If you have a Touch-Tone Mic on your XCVR, that makes
an excellent tone generator.
73/GL, ? Bob K8BL
________________________________
From: Ronald G. Parsons <w5rkn@xxxxx.xxx>
To: AMSAT-BB <AMSAT-BB@xxxxx.xxx>
Sent: Tuesday, January 7, 2014 7:59 PM
Subject: [amsat-bb] Finding yourself on the linear transponders
Perhaps it?s just me, but it seems like an increasing number of operators
are trying to find their downlink by speaking into their mic while tuning up
and down the band, often plus or minus 20-30 kHz. Not only is this
disruptive to existing QSOs, it is not the most effective way to do it. My
receiver has a panadapter with a 40 KHz bandwidth, and I can see these SSB
signals swishing up and down, over and over.
If you don?t have computer control of your frequency, set up a switch by
which you can send a SHORT series of dits. Then don?t swish. Adjust your
transmitter is steps of about 3 kHz. Send a burst of dits at low power and
listen. If you don?t hear yourself, tune up or down. This way you will have
an effective way to find yourself and you won?t interrupt other QSOs
repeatedly.
Once you find yourself, make sure you are not interfering with an existing
QSO. Then refine your tuning until your frequency is nearly right. If you
are operating CW, your done. If you are operating SSB, try holding a tone
generator near your mic and adjust your transmitter or receiver until the
tone on the downlink matches the tone generator.
There is probably a free tone generator available for your smart phone.
Better yet, try computer control of your transmitter and receiver. You can
easily find an Elmer on the air if you need help.
But, PLEASE. don?t swish!
Ron W5RKN
_______________________________________________
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: 4
Date: Wed, 08 Jan 2014 00:53:37 -0500
From: Roger Kolakowski <Rogerkola@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Finding yourself on the linear transponders
Message-ID: <52CCE7E1.1050007@xxx.xxx>
Content-Type: text/plain; charset=UTF-8; format=flowed
Honestly...I wonder how many of the operators have keys to send those
dits...
Roger
WA1KAT
On 1/7/2014 7:59 PM, Ronald G. Parsons wrote:
> Perhaps it?s just me, but it seems like an increasing number of operators
are trying to find their downlink by speaking into their mic while tuning up
and down the band, often plus or minus 20-30 kHz. Not only is this
disruptive to existing QSOs, it is not the most effective way to do it. My
receiver has a panadapter with a 40 KHz bandwidth, and I can see these SSB
signals swishing up and down, over and over.
>
> If you don?t have computer control of your frequency, set up a switch by
which you can send a SHORT series of dits. Then don?t swish. Adjust your
transmitter is steps of about 3 kHz. Send a burst of dits at low power and
listen. If you don?t hear yourself, tune up or down. This way you will have
an effective way to find yourself and you won?t interrupt other QSOs
repeatedly.
>
> Once you find yourself, make sure you are not interfering with an existing
QSO. Then refine your tuning until your frequency is nearly right. If you
are operating CW, your done. If you are operating SSB, try holding a tone
generator near your mic and adjust your transmitter or receiver until the
tone on the downlink matches the tone generator.
>
> There is probably a free tone generator available for your smart phone.
>
> Better yet, try computer control of your transmitter and receiver. You can
easily find an Elmer on the air if you need help.
>
> But, PLEASE. don?t swish!
>
> Ron W5RKN
> _______________________________________________
> 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: Wed, 8 Jan 2014 03:49:27 +0000 (GMT)
From: Luthfi <a_luthfi@xxxxx.xx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Looking for new Emotator EV-800DX
Message-ID:
<1389152967.93167.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Dear all,
I am looking for to purchase new Emotator EV-800DX to replace my old one. I
have search on internet for email contact or web address of the
manufacturer, but I couldn't get any. Does anyone know where I can contact
to purchase the device?
Many thanks,
Luthfi
Parepare, South Sulawesi
Indonesia
------------------------------
Message: 6
Date: Wed, 8 Jan 2014 06:13:17 -0500
From: "Jeff Griffin" <kb2m@xxxxxxx.xxx>
To: "'AMSAT-BB'" <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Re: Finding yourself on the linear transponders
Message-ID: <00c301cf0c62$a1bcb160$e5361420$@xxx>
Content-Type: text/plain; charset="UTF-8"
And most importantly start somewhere in the passband where there is no
activity, once you find yourself then move to the active area of the
passband...
73 Jeff kb2m
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Ronald G. Parsons
Sent: Tuesday, January 7, 2014 7:59 PM
To: AMSAT-BB
Subject: [amsat-bb] Finding yourself on the linear transponders
Perhaps it?s just me, but it seems like an increasing number of operators
are trying to find their downlink by speaking into their mic while tuning up
and down the band, often plus or minus 20-30 kHz. Not only is this
disruptive to existing QSOs, it is not the most effective way to do it. My
receiver has a panadapter with a 40 KHz bandwidth, and I can see these SSB
signals swishing up and down, over and over.
If you don?t have computer control of your frequency, set up a switch by
which you can send a SHORT series of dits. Then don?t swish. Adjust your
transmitter is steps of about 3 kHz. Send a burst of dits at low power and
listen. If you don?t hear yourself, tune up or down. This way you will have
an effective way to find yourself and you won?t interrupt other QSOs
repeatedly.
Once you find yourself, make sure you are not interfering with an existing
QSO. Then refine your tuning until your frequency is nearly right. If you
are operating CW, your done. If you are operating SSB, try holding a tone
generator near your mic and adjust your transmitter or receiver until the
tone on the downlink matches the tone generator.
There is probably a free tone generator available for your smart phone.
Better yet, try computer control of your transmitter and receiver. You can
easily find an Elmer on the air if you need help.
But, PLEASE. don?t swish!
Ron W5RKN
_______________________________________________
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: Wed, 8 Jan 2014 13:51:10 +0000
From: B J <va6bmj@xxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Antares Launch Scrubbed
Message-ID:
<CAP7QzkMwZ3sO7r9_eZhMeLNXG6xnUUjJJJ7y3LgWju4pZwo8Hg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
http://www.americaspace.com/?p=48646
http://www.nasaspaceflight.com/2014/01/orbitals-antares-loft-cygnus-orb-1-miss
ion/
73s
Bernhard VA6BMJ @ DO33FL
------------------------------
Message: 8
Date: Wed, 8 Jan 2014 08:43:57 -0600
From: Clayton Coleman <kayakfishtx@xxxxx.xxx>
To: "Ronald G. Parsons" <w5rkn@xxxxx.xxx>
Cc: AMSAT-BB <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Re: Finding yourself on the linear transponders
Message-ID:
<CAPovOwdCX3GzJq=mrJAX7PeUSOVw9464RRPSrfvQ4p5rPcdCmQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=windows-1252
Ron,
Bringing up a view of the entire satellite pass band can be very
enlightening when using a FlexRadio, FUNCube Dongle, or similar
device. What do you think about those people who run so much power
their signal sounds like garbage and images are seen and heard on
other parts of the passband? It's cool (NOT) to see the waterfall of
someone FM'ing AO-7.
Whistling and swishing across the passband is certainly annoying.
Equally annoying are those who pass after pass refuse to reduce their
power levels. I understand many people use stations designed for
working satellites at greater distances (i.e. 20,000 km vs 1000 km.)
Adjust transmit power accordingly, please. Good or bad, we live in a
LEO-sat world.
In your post you mention that using computer control or using a series
of short dits are methods to minimize the 'swishing' effect. Both
very good options. However, as someone who does a lot of portable
operating, it is very annoying when I cannot ever hear myself because
someone is killing/hogging the transponder. Often it can be caused by
as little as two stations. I can usually gauge where I will be on the
transponder based on desired frequency. This comes with a lot of
practice manually correcting for Doppler.
I'm fond of Jeff KB2M's suggestion of moving off the pass band center
to "find one's self." The center of the pass band is not some magical
vortex guaranteed to produce rare DX contacts. For example, when I'm
portable I like to start around 435.875 on FO-29.
There's plenty of room for improvement across the board. We can move
today's 'swisher' to tomorrow's elmer with the right instruction and
encouragement.
73
Clayton
W5PFG *
* Still learning every day and making mistakes.
On Tue, Jan 7, 2014 at 6:59 PM, Ronald G. Parsons <w5rkn@xxxxx.xxx> wrote:
> Perhaps it?s just me, but it seems like an increasing number of operators
are trying to find their downlink by speaking into their mic while tuning up
and down the band, often plus or minus 20-30 kHz. Not only is this
disruptive to existing QSOs, it is not the most effective way to do it. My
receiver has a panadapter with a 40 KHz bandwidth, and I can see these SSB
signals swishing up and down, over and over.
>
> If you don?t have computer control of your frequency, set up a switch by
which you can send a SHORT series of dits. Then don?t swish. Adjust your
transmitter is steps of about 3 kHz. Send a burst of dits at low power and
listen. If you don?t hear yourself, tune up or down. This way you will have
an effective way to find yourself and you won?t interrupt other QSOs
repeatedly.
>
> Once you find yourself, make sure you are not interfering with an existing
QSO. Then refine your tuning until your frequency is nearly right. If you
are operating CW, your done. If you are operating SSB, try holding a tone
generator near your mic and adjust your transmitter or receiver until the
tone on the downlink matches the tone generator.
>
> There is probably a free tone generator available for your smart phone.
>
> Better yet, try computer control of your transmitter and receiver. You can
easily find an Elmer on the air if you need help.
>
> But, PLEASE. don?t swish!
>
> Ron W5RKN
> _______________________________________________
> 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: Wed, 08 Jan 2014 11:20:36 -0400
From: Gus <gus@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Finding yourself on the linear transponders
Message-ID: <52CD6CC4.3000602@xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8; format=flowed
Tx to FM mode, mouth closed (no modulation), PTT is your key.
On 01/08/2014 01:53 AM, Roger Kolakowski wrote:
> Honestly...I wonder how many of the operators have keys to send those
> dits...
>
> Roger
> WA1KAT
>
> On 1/7/2014 7:59 PM, Ronald G. Parsons wrote:
>> Perhaps it?s just me, but it seems like an increasing number of
>> operators are trying to find their downlink by speaking into their mic
>> while tuning up and down the band, often plus or minus 20-30 kHz. Not
>> only is this disruptive to existing QSOs, it is not the most effective
>> way to do it. My receiver has a panadapter with a 40 KHz bandwidth,
>> and I can see these SSB signals swishing up and down, over and over.
>>
>> If you don?t have computer control of your frequency, set up a switch
>> by which you can send a SHORT series of dits. Then don?t swish. Adjust
>> your transmitter is steps of about 3 kHz. Send a burst of dits at low
>> power and listen. If you don?t hear yourself, tune up or down. This
>> way you will have an effective way to find yourself and you won?t
>> interrupt other QSOs repeatedly.
>>
>> Once you find yourself, make sure you are not interfering with an
>> existing QSO. Then refine your tuning until your frequency is nearly
>> right. If you are operating CW, your done. If you are operating SSB,
>> try holding a tone generator near your mic and adjust your transmitter
>> or receiver until the tone on the downlink matches the tone generator.
>>
>> There is probably a free tone generator available for your smart phone.
>>
>> Better yet, try computer control of your transmitter and receiver. You
>> can easily find an Elmer on the air if you need help.
>>
>> But, PLEASE. don?t swish!
>>
>> Ron W5RKN
>> _______________________________________________
>> 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
>
>
--
Gus 8P6SM
The Easternmost Isle
------------------------------
Message: 10
Date: Wed, 8 Jan 2014 08:45:55 -0700
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Finding yourself on the linear transponders
Message-ID:
<CAN6TEUfiy5+LhMteykWPGttsU8jORtjjycTrv69JaEZONJ_5DA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=windows-1252
Hi Roger!
I'm one of those who has a key (paddles) to send dits. I've made
a few CW QSOs via satellite, but most of the time the paddles are
my tool to line myself up on transponders so I can work them in
SSB. I've been doing this for several years, normally with two
FT-817NDs and no computer. Lining up a CW signal through the
transponder has been a lot easier for me than talking while trying
to find myself. It also helps to compensate for Doppler when
starting out. For example, if I'm trying to get started at 145.910
MHz on VO-52's downlink early in a pass, I do not start transmitting
right on 435.240 MHz. I move my transmit frequency down a few kHz,
so I am not having to transmit across 7 to 10 kHz to line myself up.
I used to keep a note card with the TX and RX frequencies I should
use for each of the SSB satellites, so I could set my radios up
with a minimum of transmissions to get lined up. Less time used
to get lined up should mean more time to make QSOs.
As was mentioned by KB2M and W5PFG, I don't normally start a pass
at the center of the transponder. There is usually more than
enough activity in the few kHz above and below that spot, where
I might not hear my 5-watt signals coming through the transponder
there. I also know that, without using a computer, I should go off
and find a quiet spot away from the center to get lined up. I don't
interfere with others that way, and they aren't getting in my way
when I'm trying to get lined up. I look to go 10 to 15 kHz above
the center frequency to get started, then work from there. I may
move down toward the center later in the pass, if I am not working
anyone where I started out higher in the transponder. If you try to
find me this Saturday morning on those satellites while I am doing
demonstrations from a Phoenix hamfest, look for me around that area
early in the pass instead of at the center of the transponder.
W5PFG is also right about those who use too much power through the
transponders. Normally I have no problems working the transponders
with 5W signals, and sometimes will cut back to as little as 500mW
around the middle of a pass. There have been times where I am not
able to hear myself, even when the satellite is up 30 to 40 degrees
from the horizon - where I should be able to hear myself clearly
through the satellite. I can usually find a very strong signal
on the downlink when that happens, one that probably could use less
power and still be clearly heard.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
On Tue, Jan 7, 2014 at 10:53 PM, Roger Kolakowski <Rogerkola@xxx.xxx> wrote:
> Honestly...I wonder how many of the operators have keys to send those
> dits...
>
> Roger
> WA1KAT
>
>
> On 1/7/2014 7:59 PM, Ronald G. Parsons wrote:
>
>> Perhaps it?s just me, but it seems like an increasing number of operators
>> are trying to find their downlink by speaking into their mic while tuning
>> up and down the band, often plus or minus 20-30 kHz. Not only is this
>> disruptive to existing QSOs, it is not the most effective way to do it. My
>> receiver has a panadapter with a 40 KHz bandwidth, and I can see these SSB
>> signals swishing up and down, over and over.
>>
>> If you don?t have computer control of your frequency, set up a switch by
>> which you can send a SHORT series of dits. Then don?t swish. Adjust your
>> transmitter is steps of about 3 kHz. Send a burst of dits at low power and
>> listen. If you don?t hear yourself, tune up or down. This way you will have
>> an effective way to find yourself and you won?t interrupt other QSOs
>> repeatedly.
>>
>> Once you find yourself, make sure you are not interfering with an
>> existing QSO. Then refine your tuning until your frequency is nearly right.
>> If you are operating CW, your done. If you are operating SSB, try holding a
>> tone generator near your mic and adjust your transmitter or receiver until
>> the tone on the downlink matches the tone generator.
>>
>> There is probably a free tone generator available for your smart phone.
>>
>> Better yet, try computer control of your transmitter and receiver. You
>> can easily find an Elmer on the air if you need help.
>>
>> But, PLEASE. don?t swish!
>>
>> Ron W5RKN
>> _______________________________________________
>> 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
>
------------------------------
_______________________________________________
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 8
**************************************
Read previous mail | Read next mail
| |
