Thanks to Domenico for sharing the work done by K4KJ. It is amazing
how much good information there is out there. It takes a bit of
digging to find it but it is worth the effort. The configuration shown
in figure 14 looks promising but probably too difficult to put on a
sat.
W9KE Tom Doyle
On
Dear friends,
Thanks to Jean-Louis Rault F6AGR who quickly informed me, I heard my
first signal from Yubileiny-2 RS-40 on monday July 30th afternoon. The
signal of the 435.365 MHz beacon was fairly strong regarding my poor
receiving devices and aerials.
After that, the beacon was heard
By now, all members in good standing of AMSAT-NA should have received their
ballots, including the position biographies by the candidates. Additional
information for those interested can be found in the minutes of the 2011
Board Meeting which appear in the current issue of the AMSAT Journal. We
Bob,
Just a reminder, a QFH antenna is circularly polarized over the whole
envelope of the antenna. A sharp null exists on the back side. A one
wavelength, one turn has gain at low angle side radiation and a 4 dB loss
overhead, where the distance to the ground station is the smallest.
Certainly
amsat-bb-requ...@amsat.org schrieb:
Message: 2
Date: Sun, 5 Aug 2012 10:23:21 + (UTC)
From: Jean-Pierre Godetgod...@wanadoo.fr
To:ans-edi...@amsat.org
Cc:amsat-bb@amsat.org
Subject: [amsat-bb] Yubileiny-2 RS-40
Message-ID:pine.lnx.4.60.1208050840120@comcon2.org
Content-Type: TEXT/PLAIN;
Hi Art, KC6UQH
It is correct that a QFH is circularly polarized over the whole envelope
of the antenna.If it is left wound the polarization is RHCP and if it is
right wound the resulting polarization is LHCP.
By the way the point is the satellite antenna.
If the satellite antenna is made using
Domenico,
You are correct, the crossed dipoles fed in quadrature when on axis exhibit
LH and RH circular patterns, but 90 degrees from axis they are linearly
polarized. This gives poor performance at low angles as well as requiring
both RH and LH rotations for a full pass reception.
Obviously
I guess it takes longer for Canada?
Stefan, VE4NSA
On Sun, Aug 5, 2012 at 3:46 PM, Alan P. Biddle apbid...@united.net wrote:
By now, all members in good standing of AMSAT-NA should have received their
ballots, including the position biographies by the candidates. Additional
information for
Stefan,
They went out shortly before July 15th, per the bylaws. Definitely check
with Martha (at) AMSAT (dot) ORG Monday.
73s,
Alan
WA4SCA
-Original Message-
From: Stefan Wagener [mailto:wagen...@gmail.com]
Sent: Sunday, August 05, 2012 6:08 PM
To: apbid...@mailaps.org
Cc: AMSAT-BB;
The 6th, 7th and 8th I'll be portable and mobile in EN53 and EN54 on So50
and Ao27.
de
K9TSU
___
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
The first image has been transmitted and received.
73s
Bernhard VA6BMJ @ DO33FL
___
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription
11 matches
Mail list logo
