[amsat-bb] AO-92 L Band Power

Lynn Palmer bmepllc at yahoo.com
Wed Jul 8 22:30:17 UTC 2020


Hi Alan, I use 10 watts from my Icom IC-9700. I run about 100 feet of LMR 600 coax so maybe 5 watts to the antenna.  I use a 35 element yagi antenna.  I made the satellite today at 14 degrees elevation OK. 
73sLynnKD9BVG 

    On Wednesday, July 8, 2020, 04:53:09 PM CDT, Alan Blind via AMSAT-BB <amsat-bb at amsat.org> wrote:  
 
 Using 10 Watts, I have not been able to get into AO-92 L Band.

>From the AO-92 web site:

================

......Since the 435 MHz uplink antenna is used to receive the 1267 MHz
signals and may present a mismatch at that frequency, pre-launch estimates
suggest that a power level of 100 watts ERP will be required for
horizon-to-horizon access in Mode L/v. AMSAT Engineering will issue further
guidance after in-orbit testing. Look for future articles on the AMSAT
website and in The AMSAT Journal for equipment ideas and tutorials for
accessing the L-band uplink.
====================

Perhaps my 10 Watts are too low.  Have there been updates from AMSAT on
recommended L band power?  What power do others run?

Alan
WA9WUD
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