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Re: Newbie Q & A



ERP is good,if it`s pointed correctly.
One can make it with a big gun,
or with a effective `sniper`gun.....

Chris  PA5RWE
www.loopyagi.da.ru

----- Original Message -----
From: "Gary Mayfield" <gary_mayfield@hotmail.com>
To: <amsat-bb@AMSAT.Org>
Sent: Sunday, March 17, 2002 3:18 AM
Subject: Re: [amsat-bb] Newbie Q & A


>
> This discussion always makes me giggle.  PEP means nothing!  ERP is all
that
> matters.  My 5 Watts into a 10dBi antenna will beat your 10 Watts into a 3
> dBi antenna every time.
>
> 73,
> Joe
> ka0yos@amsat.org
>
>
> >From: "Scott Elliott" <scott@pieh0.co.uk>
> >To: <amsat-bb@AMSAT.Org>
> >Subject: Re: [amsat-bb] Newbie Q & A
> >Date: Sat, 16 Mar 2002 20:33:29 -0000
> >
> >shall we just ban pa's :)
> >cause i use 30 watt pep on uo14, and thats just to attempt to get over
the
> >people using stupid amounts of power. fo20/29 i use 15 pep with no
problem.
> >granted, still a bit high, but with my farting little yagi's, i have to
:/.
> >
> >while we are at it, what about people that INSIST on putting about 5-10
> >secs
> >worth of tone burst using stupid amounts of power. with the volume i have
> >my
> >headphones at, it cant be doing any good to hear 1750hz worth of tone :)
> >
> >shame you cant have some sort of banning system on the sats, mainly due
to
> >liecensing and also due to people not using the way in which it would be
> >done, like using aqs on the 736's :)
> >
> >
> >Speak to you later.
> >Scott Elliott
> >Scott@pieh0.co.uk
> >2E1FJB / M1SJE
> >----- Original Message -----
> >From: "Terry Bendell" <ve3tkb@sympatico.ca>
> >To: "sarkas services" <landscaping@sarkas.com>; <amsat-bb@AMSAT.Org>
> >Sent: Saturday, March 16, 2002 5:42 PM
> >Subject: Re: [amsat-bb] Newbie Q & A
> >
> >
> > > I have to agree with you on this Lou,
> > > I operate 1 watt or less on the LEO with simple antennas,
> > > During night or wee am passes I get in just fine.
> > > It's not until the 2kw (ERP) staions fire up that it
> > > becomes impossible.
> > >
> > > 73
> > > Terry
> > >
> > >
> > > ----------
> > > >From: "sarkas services" <landscaping@sarkas.com>
> > > >To: <amsat-bb@AMSAT.Org>
> > > >Subject: Re: [amsat-bb] Newbie Q & A
> > > >Date: Sat, Mar 16, 2002, 8:58 AM
> > > >
> > >
> > > >How come the real issue is NEVER talked about, when it comes to
simple
> > > >operations, with "Basic"  equipment?  you can work  AO-27 with 5
watts,
> >2
> >on
> > > >an overhead pass, I think you could work uo-14 on.5 watt. but the
> >difficulty
> > > >lies in everyone pushing 50-100 watts into these birds, so the guy
with
> >a
> >HT
> > > >and whip is talking into the wind, come on we have to admit, hardly
> >anyone
> > > >is using the minimal power to get into the birds, if everyone was QRP
> >it
> > > >would be easy,  on a quiet ocean pass I worked europe with my HT with
2
> > > >watts. granted a had the Arrow so there was some gain,,,
> > > >Lou
> > > >N1GOD Formerly KB1HJB
> > > >----- Original Message -----
> > > >From: "nagesh" <ham@vsnl.com>
> > > >To: "amsat-bb" <amsat-bb@AMSAT.Org>
> > > >Sent: Friday, March 15, 2002 9:48 PM
> > > >Subject: [amsat-bb] Newbie Q & A
> > > >
> > > >
> > > >> ``Is it true that one cannot work through amateur satellites with
> >simple
> > > >> ham-gear?''
> > > >> The most common question from a newcomer.
> > > >> The most common phobia preventing them coming on to satellites.
> > > >> This question is well answered in discussion on amsat-bb.
> > > >> It is edited and condensed here with due credits to all those who
> > > >> participated.
> > > >> It is done so that it is available at one place and can be passed
on
> >to
> > > >any
> > > >> newcomer.
> > > >> Thanks to Steve Olney for raising the question and all others who
> > > >> answered -it made a very interesting reading!!
> > > >>
> > > >>
> > > >> It is a myth busted!!
> > >
> > >>
> >-------------------------------------------------------------------------
> >-
> > > >-
> > > >> ----------
> > > >> MYTH:
> > > >>
> > > >> If I got the information right, there are currently no sats which
can
> >be
> > > >> accessed by simple equipment (e.g., fixed turnstiles).
> > > >> Steve Olney VK2ZTO
> > > >> ======================
> > > >>
> > > >> REALITY:
> > > >>
> > > >> 1) I'm not sure where you got that information, but it is not
> >completely
> > > >> true.  I copy all of the following satellites using only a simple
6"
> >whip
> > > >> (for UHF) and 19.5" whip (for VHF) over a groundplane on my roof:
> > > >>
> > > >>  ISS   above about 3 deg   6 passes a day
> > > >>  PCsat above about 10 deg  5 passes a day
> > > >>  UO-14 above about 10 deg  5 passes a day
> > > >>  AO-27 above about 15 deg  2 passes a day (daylight only)
> > > >>  UO-22 above about 20 deg  4 passes a day
> > > >>  NO-45 above about 30 deg  3 passes a day
> > > >> That averages to almost one satellite per hour that anyone can
hear.
> > > >>
> > > >> More antennas, of course, helps.  But it is really very easy... If
> >you
> >put
> > > >> a 3 element VHF and 5 or 6 element UHF array on a cheap $64 radio
> >shack
> > > >> rotator canted up about 10 degrees, then you will get 90% horizon
to
> > > >> horizon coverage of all of these birds.  You can even fully
automate
> >your
> > > >> station by running APRStk (a DOS program) which will drive the
> >rotator
> >via
> > > >> 2 bits on the parallel port.
> > > >>
> > > >> Bob, WB4APR
> > > >>
> > > >> 2) Boy is that ever wrong!  Essentially all of the LEO satellites
CAN
> >be
> > > >> worked with simple antennas.  Not necessarily very well, but it can
> >be
> > > >> done.  I personally have used AO-27 (which is not turned on over
the
> > > >> southern hemisphere, so you can't use down under), UO-14, FO-20,
> >FO-29,
> > > >and
> > > >> NO-44 (PC-Sat) using fixed antennas on my pickup truck.  Now, I
will
> >be
> > > >the
> > > >> first one to tell you that my long boom yagis at home work better,
> >but
> > > >they
> > > >> can be used with minimal antennas.
> > > >>
> > > >> Jim Walls - K6CCC
> > > >>
> > > >> 3) Don't forget RS-12/13 which is probably the easiest of all to
> >work.
> > > >>
> > > >> Joe,  ka0yos
> > > >>
> > > >>
> > > >>
> > > >> 4) Steve, this just isn't true. I moved house recently (from one
side
> >of
> > > >> the
> > > >> world to the other) and don't yet have my antennas and rotators set
> >up.
> > > >> However, I've made a number of successful QSOs on UO14 using simple
> > > >> antennas. How simple? Tx is 20 watts into a home built quarter-wave
> > > >> vertical. Rx is a 70 cm folded dipole bent from bronze brazing rod.
> >What's
> > > >> more, I can hear myself on FO29 (SSB) too. Using a wire dipole on
15
> > > >> metres, in can put a good signal into RS13 (21 MHz up, 2m down).
> > > >>
> > > >> I would be able to work AO27 too, if only it was turned on over
this
> >part
> > > >> of the world.
> > > >>
> > > >> Using a modem built from a salvaged TCM3105, I've also sent packets
> > > >through
> > > >> the ISS and copied those from PCSat (actually, you can do this with
a
> > > >sound
> > > >> card too).
> > > >>
> > > >> So... yes, in fact. There ARE plenty of satellites that you can
work
> >using
> > > >> simple fixed antennas.
> > > >>
> > > >> Steve, using my simple set up, I regularly work VK3HV, VK3UH,
VK3AJK,
> > > >> VK3BLG, VK4KR, VK3TBC,  and VK3JED on UO14. There are also others
on
> >less
> > > >> frequently.
> > > >>
> > > >> UO14 is easily the busiest down here. Most of the others are rather
> >quiet,
> > > >> with sadly, little activity (well... ISS is busy).
> > > >>
> > > >> Sil - ZL2CIA (ex PA3HIL)
> > > >>
> > > >>
> > > >> 5) UO-14 you have to listen for the carrier (actually carries FM
open
> > > >> squelch noise when there is no uplink).  I believe FO-20's beacon
is
> >non-
> > > >> functional.  FO-29 has a beacon.
> > > >> :)  I use a home brew beam for 2m/70cm
> > > >> -Tony Langdon
> > > >>
> >-----------------------------------------------------------------------
> > > >>
> > > >>
> > > >> -nagesh, vu2nud@amsat.org
> > > >>
> > > >> Nagesh Upadhyaya
> > > >> Co-ordinator, Amsat India
> > > >> 607, ISRO Layout, BANGALORE-560 078
> > > >> Ph: (R) 080-666 2015
> > > >>       (O) 080-508 3249
> > > >>
> > > >> website: www.amsatindia.org
> > > >>               www.amsat-india.org
> > > >>
> > > >>
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> > > >>
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