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Monday's MIR passes
- Subject: [amsat-bb] Monday's MIR passes
- From: Bob Bruninga <bruninga@xxxxxxxxxxxxx>
- Date: Sun, 6 Jun 1999 22:37:55 -0400 (EDT)
- In-Reply-To: <LYR1106-24668-1999.06.06-17.54.21--BRUNINGA#NADN.NAVY.MIL@lists.tapr.org>
Lets continue this handheld QRP via MIR test for 2 more days (Mon and
Tues) and then let the SIG here have a rest. (I also go in for general
surgery on Wed, so cant play anymore). So here are the predicitions for
the USA for Monday:
PDT MDT CDT EDT
---- ---- ---- ----
... ... ... 1104
... ... 1137 1238
1110 1212 1315 1418
1245 1347 1450 1553
1421 1523 1625 1728
1557 1700 1802 1905
1723 1835 1938 2041
1908 2010 2113 2216
2045 2147
Remember, UI frames only, no connects, and QRP only. Anyone wanna try 1
or 2 watts? By the way, remember, we have several advantages operating
satellites with an HT compared to a base station.
1) No line loss, no pre-amp needed (Maybe 3 dB better than Home Stn RCV)
2) No line loss on transmit. (Maybe 3 dB better on XMIT)
3) U can easily match polarization (Avoids 6 to 12 dB fades at home)
4) U can hold Ant Horiz to get coverage overhead (avoids 20 dB null)
5) Disadvantage is 6 foot antenna height. But hey, the Horizon
is 10 dB down due to range anyway...
Thus, during an overhead pass greater than 45 degrees, you might pick
up 6 to 12 dB over most Base stations in your area. THese passes only
occur once a day or so tho... But still, just matching your antenna angle
for maximum strength is something that even base stations cannot do...
de Wb4APR, Bob
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