Hi,
Thanks for reading.
Anybody out there that can give me a drawing for building a Mode A receive antenna?
73 Jan - PE0SAT
How about a dipole 16'6" across?
On 20-Feb-10 17:11, PE0SAT wrote:
Hi,
Thanks for reading.
Anybody out there that can give me a drawing for building a Mode A receive antenna?
73 Jan - PE0SAT
No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2698 - Release Date: 02/19/10 19:34:00
I have for a number of years used a full wave loop. I ran the wire inside a piece of black plastic water pipe which is about 2 inch diameter. Close the loop with a T-connector made for this pipe and bring the ends of the wire out the open T. Connect one end to center connector of Coax and the other end to the braid of the coax. I use RG-58 or 59 since it is receive only. Hang it horizonal supported by a cross made of wood strips and setting on a tripod. I have even just tossed it up on the roof and let it lay there. It has a cone shape node pointing to the sky. The pattern is about from 15 degrees after AOS to 15 degrees before LOS. granted it would work better if you raised it higher but has worked just great for me as discribed. I can send a picture of it if you wish. Good luck and 73's << John
On Sat, Feb 20, 2010 at 12:20 PM, Nigel Gunn G8IFF/W8IFF nigel@ngunn.net wrote:
How about a dipole 16'6" across?
On 20-Feb-10 17:11, PE0SAT wrote:
Hi,
Thanks for reading.
Anybody out there that can give me a drawing for building a Mode A receive antenna?
73 Jan - PE0SAT
No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.733 / Virus Database: 271.1.1/2698 - Release Date: 02/19/10 19:34:00
-- Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937 825 5032 Amateur Radio G8IFF W8IFF (was KC8NHF), e-mail nigel@ngunn.net www http://www.ngunn.net Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pigs QRP Club International #385, Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK 0182, MKARS, ALC, GCARES, XWARN.
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 settings: http://amsat.org/mailman/listinfo/amsat-bb
An Inverted-V turnstile works great. Make two 16.5-foot dipoles and arrange them perpendicularly in the horizontal plane at the feed. A center support pole works well and then attach guy ropes to the ends of the dipoles and stake them down so the elements are 30-deg off horizontal. Connect the two dipoles 90-deg out of phase with a quarter wavelength coaxial delay line (shortened by the coax's velocity factor).
73, Ken N2WWD
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of PE0SAT Sent: Saturday, February 20, 2010 12:12 PM To: amsat-bb@amsat.org Subject: [amsat-bb] Looking for Mode A receive Antenna
Hi,
Thanks for reading.
Anybody out there that can give me a drawing for building a Mode A receive antenna?
73 Jan - PE0SAT
-- With regards PE0SAT Internet web-page http://www.ham.vgnet.nl/
_______________________________________________ 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 settings: http://amsat.org/mailman/listinfo/amsat-bb
participants (4)
-
John Price -
Ken Ernandes -
Nigel Gunn G8IFF/W8IFF -
PE0SAT