[alberg30] GPSs

[sandersm at aol.com]

While on the subject of GPS:  I have a Garmin 120, never installed, from 
1996.  It is the precursor of the 128, and differs in that it has one channel 
that tracks 8 birds at a time, rather than the 128's 12 channels that track 
12 birds simultaneously.  I called Garmin to ask whether, apart from start-up 
time, there would be any significant advantgage to buying a 128.  They said 
that the new units would be more accurate by 20-30 feet -- not an issue, for 
the extra money.  BUT they also said that the older units were not at all 
accurate on speed over ground, when traveling at speeds under 5 mph.

I would be grateful if those of you with older GPS units -- the Garmin 120 or 
comparable sets -- could confirm whether their units appear reliable at 
reporting speed over ground.  Any other advice is also appreciated.

Sanders McNew
WILD ELF  # 297

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