| |
CX2SA > SATDIG 10.06.10 20:09l 75 Lines 2689 Bytes #999 (0) @ WW
BID : AMSATBB5262
Read: GUEST
Subj: AMSAT-BB-digest V5 262
Path: IZ3LSV<IW0QNL<ON4HU<VE3UIL<VE9MPF<CX2SA
Sent: 100610/1903Z @:CX2SA.LAV.URY.SA #:65340 [Minas] FBB7.00e $:AMSATBB5262
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: AO-7 question (Ron Overdrive)
----------------------------------------------------------------------
Message: 1
Date: Thu, 10 Jun 2010 14:43:58 -0400
From: Ron Overdrive <ronoverdrive@xxxxxxxx.xxx>
Subject: [amsat-bb] Re: AO-7 question
To: Samudra Haque <samudra.haque@xxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID:
<AANLkTikyYqhJKuMegLBUNV6FXYkLsnQQUkN9zIlYonVL@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
As far as I can tell looking at AMSAT's website and the AO-7 Log & Resource
site I'm not seeing anything mentioning EIRP. Everything says to keep your
power low like 5 watts or less. I'm not sure what kind of antenna gain
they're assuming when they say that. I pretty much always operate low power
as it is and the only indicator they give is if you hear FM noise while in
SSB, unfortunately being a new ham I do not know what that sounds like.
On Thu, Jun 10, 2010 at 2:31 PM, Samudra Haque <samudra.haque@xxxxx.xxx>wrote:
> Hi does the spec specify the output power as EIRP or not?
>
> If EIRP the antenna gain needs to be part of the equation and
> therefore you need to reduce your transmission power to avoid desense
> at the receiver on orbit. If the spec does not specify then there
> should be a receiver senstivity figure already published which would
> be useful in a link budget equation.
>
> Sent on the road... If urgent call (202) 812-3325
>
> On Jun 10, 2010, at 12:46 PM, Ron Overdrive
> <ronoverdrive@xxxxxxxx.xxx> wrote:
>
> > One thing I always noticed is that its recommended to not exceed 5
> > watts
> > when operating on AO-7, but I'm not seeing anything about maximum
> > gain to
> > use. I have an Arrow II handheld yagi and on the 440 side supposedly
> > it has
> > a 10dbd gain which would give me effectively 50 watts output
> > assuming no
> > losses. So my question in a nutshell is, what is the maximum
> > recommended
> > radiated power recommended with this bird?
> >
> > ~73, KC2WQW Ron
> > _______________________________________________
> > 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 5, Issue 262
****************************************
Read previous mail | Read next mail
| |
