[aprssig] FW: [OZAPRS] HF antenna

Eric Christensen kf4otn at ericsatcom.net
Sun Jul 3 10:56:43 CDT 2005

What is the website?

Eric KF4OTN 

-----Original Message-----
From: aprssig-bounces at lists.tapr.org
[mailto:aprssig-bounces at lists.tapr.org] On Behalf Of Jack Cavanagh
Sent: Sunday, July 03, 2005 10:10
To: TAPR APRS Mailing List
Subject: Re: [aprssig] FW: [OZAPRS] HF antenna

I calculate 7.03 metres.  this was done using L(ft)=468/F(MHz) this
accounts for end effect shortening.  See ARRL Handbook.

   This difference should not be a big factor in reception as you
attenuate external noise as much as the signal with a mismatch at 10

Your taxes are paying for some nice propagation data collected in Oz.
Check the web site for current HF conditions 73,


aprssig mailing list
aprssig at lists.tapr.org

More information about the aprssig mailing list