... hi hi hi..
BTW thanks for the articles of Maxwel and I'm viewing the site right now...
73
El 19/02/13 02:14, i8cvs escribió:
- Original Message -
From: Ing. Pavel Milanes Costa pa...@conas.cu
To: amsat-bb@amsat.org
Sent: Monday, February 18, 2013 9:29 PM
Subject: [amsat-bb] Re: QFHA
Ing. Pavel,
There are a whole series of QFH antennas. 1/4,turn, 1/4 wavelength through 1
turn 1 Wavelength.
Gain at the horizon is determined by the ratio of the axial length in
fractions of a wave length. The best performance I have obtained is a 1
wavelength per side, 1 turn, for good gain at
Hi Pavel,
The issue may not be the antenna - but SO-50.
The antennas are linear - but the received signal strength can vary a lot if
you have just RHCP or LHCP.
During passes here in Copenhagen, Denmark I experience large differences in
signal strength which can be counteracted by changing
Thanks to all for the reply to this thread...
Conclusion is that I need RHCP LHCP switchable antennas...
And my antenna is working good... but I'm reading an article Art send me
to improve my knowledge about QFHA...
73 and Thanks to all.
El 16/02/13 23:21, Ing. Pavel Milanes Costa
- Original Message -
From: Ing. Pavel Milanes Costa pa...@conas.cu
To: amsat-bb@amsat.org
Sent: Monday, February 18, 2013 9:29 PM
Subject: [amsat-bb] Re: QFHA for SO-50... polarization issue ???
Thanks to all for the reply to this thread...
Conclusion is that I need RHCP LHCP
