[IGSMAIL-0957] MacQuarie Island - antenna height

[Martin]

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IGS Electronic Mail      Sun May 21 20:10:38 PDT 1995      Message Number 0957
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Author: Martin Hendy
Subject: MacQuarie Island - antenna height

Subject: MacQuarie Island - antenna height

Please be advised that the current log is in error.
The antenna height is shown as 0.1025 m to the arp.
This is in fact the height to the bottom of the ground
plane and the height to the arp should be 0.0675 m.

This log will be superceded with a new one when the new
antenna is installed later this month.

Anyone who used this data during 1994 should be aware 
of this error and I apologize for any inconvenience 
caused.

Further during the period that the antenna was in use,
it and the mounting it was on were corroding and as at
the last measurement made on 94.12.04, the height of the
antenna had risen by 3.5 mm due to the expansion caused
by the corrosion.


Regards
Martin Hendy

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Martin R. Hendy   Telephone: (+61 6) 2014 350
                  Fax:       (+61 6) 2014 366
                  Email: mhendy at mailhost.auslig.gov.au
Geodesy Unit
Australian Surveying & Land Information Group (AUSLIG)
P.O. Box 2
Belconnen ACT 2616
AUSTRALIA
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[Mailed From: Martin Hendy - geodesy - UnixMail <Hendy at auslig.gov.au>]