[amsat-bb] Lindenblad or DCA???

Mon Apr 2 17:02:08 UTC 2018

Great plots... Now add a 1/4 wave monopole plot.  It has a null straight
up, but the time any satellite is in that null is less than 5% of the
time, and at those higher elevations, the satellite is 10 dB stronger
anyway.  So the impact is minimal...   And it has a smooth response
without all those nulls of the others...    And include a 3/4 wave
vertical plot and pick up another 2 dBi... above 30 deg.

-----Original Message-----
From:  Roland Zurmely via AMSAT-BB
Sent: Monday, April 02, 2018 12:28 PM
Subject: [amsat-bb] Lindenblad or DCA???

See here comparison of 4 omnidirectional antennas: DCA, Lindenblad,
turnstile and QFH:
<http://www.qsl.net/py4zbz/4ant.htm>
73 de Roland PY4ZBX