Antennas Gap DX-IV on
left
Homebrew 15-17-20 dipoles in center
Homebrew 10-6 dipolles nearly on roofline
Discone in tree on left (can see mast, not antenna)
Gap down to repair capacity hat and change loading
cap from 1810 KHz to 1960 KHz.
A little trouble switching back to 1810. 2008 Feb 2
MFJ-1786 in "high attic." 2009 July.
Filings
with the FCC Ballooning Operating W6VIO, set the HF telemetry reception
distance record for an amateur radio balloon flight, 2437 miles.
( See records.) If you like trig, check out my derivation
of the altitude versus line-of-site range rule-of-thumb:
range (miles) = 1.23 * sqrt( height (feet) ) APRS (Automatic
Position Reporting System)
That's my bicycle
with an APRS system in the backpack (including a nine
pound battery). You can barely see the 19" whip sticking
up. See my current location at http://findu.com/cgi-bin/find.cgi?call=N5BF-4 Recent
Track
(or use -3 for vehicular mobile, -5 for hiking).
