[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: AO-40 squint



I find pretty solid copy with majority good CRCs at any squint < 30 deg if
the signal is decent in the first place.


39" HyperLink Tech BBQ Dish, Horizontal Polarization, UEK-3000 D/C, . 6 dB
NF, 30 dB Gain > FT-847

73
hasan schiers, N0AN

schiers@netins.net
or use amsat.org or arrl.net remailer
----- Original Message -----
From: "Don Woodward" <dbwoodw@abraxis.com>
To: "Amsat Bulletin Board" <amsat-bb@AMSAT.Org>
Sent: Sunday, March 17, 2002 7:26 AM
Subject: [amsat-bb] AO-40 squint


> My current setup seems to capture 100% blocks/frames with good CRC's from
AO-40
> when the squint is 20 degrees or less and the ratio of good to bad drops
off
> dramatically after the squint increases above 20, so I usually quit trying
to
> copy at this point - I am using a 90cm offset dish and a 2 1/2 turn helix
and
> Transystem 3733. My system hears very well - last week I was able to copy
the
> Helaps sideband noise. According to the "AO-40 S2 Squint Analysis by
VK5HI" on
> the AMSAT web, it says that "Optimal error free downlink performance using
the
> S2 downlink for telemetry captures occurs at squint angles less than 35
> degrees".
>
> My question:   Is anyone reliably coping blocks/frames with good CRC's at
higher
> squints? Say 25 and up? How high?
>
> 73's
>
> Don Woodward
> KD4APP
> AMSAT 33535
> kd4app@amsat.org
> http://www.w-ent.com/ao40/index.htm
>
> ----
> Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org


----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org



AMSAT Top AMSAT Home