No. 70 The Voice of the Land Surveyors of Califo rnia Winter ... - CLSA

Book Nook
1. Shore and Sea Boundaries
(1962) Reprint 1975-Aaron L.
Shalowitz, U.S. Department of
Commerce Publication No. 10-1
Vol //—The Interpretation and
Use of U.S. Coast and Geodetic
Survey Data
$11.95 ea.
2. Tide and Current Glossary—
U.S. Department of Commerce,
N.O.A.A.—National Ocean Survey
(1949) Revised 1975. Special
Publication No. 228 $1.00 ea.
3. Coastal Zone Map ffTP-00189~
Florida, Palm Beach County, Lantana
to Boynton Beach—1.10,000
(1970)
An extremely interesting map
format which contains detailed
printed instruction to Surveyors
on How to Locate a Mean High
Water Line According to Law,
adopted by the Florida State
Legislature. A real collector's item
$2.50 ea.
4. Restoration of Lost or Obliterated
Corners & Subdivision of Sections—a
guide for surveyors-
United States Department of Interior,
Bureau of Land Manage^^
ment—1974 Edition $.75e^A
5. Metric Practice Guide for Su^^
veying and Mapping—Americsin
Congress on Surveying and Mapping.
This Metric Practice Guide
has been prepared to aid those
engaged in surveying and mapping
in the use of the International
System of Units (SI) in accordance
with recommendations contained
in the Metric Conversion Act of
1975, Public Law 94-168 $1.50 ea.
ORDERS AND PAYMENTS SHOULD BE DIRECTED TO:
CALIFORNIA LAND SURVEYORS ASSOCIATION. INC.
P.O. Box 9098. Santa Rosa, CA 95405
ITEM NO. DESCRIPTION PRICE EA. TOTAL
Name: TOTAL: $.
Address:
City: _
.State. Zip
MASTER CHARGE OR VISA ACCT. NO.
Expiration Date
4
HP41CV SURVEY NOTES
QUESTION: How do I store and
recall coordinates using the
HP41CV and the HP82161A
Digital Cassette Drive?
ANSWER: Use the following
program as a subroutine.
00 LABEL 00
01 CLA Clears the Alpha register
02 DATA "DATA" is the data
file name.
03
04
05
06
07
08
2
*
SEEKR
20.021
WRTRX
RTN
This positions the
cassette file.
Page 22 The California Surveyor — Winter 1983
This program uses registers 20
and 21 as temporary storage registers.
Before using this subroutine,
store your northing in register 20
and your easting in register 21.
Enter your point number in the
"X" register or display and press
XEQ 00. This program stores your
northing and easting on the
cassette. To recall your northing
and easting, change step 07 to
READRX, enter your point
number in the display, and press
XEQ 00.
Questions and comments may be
directed to the Editor, or Keith
Houseman, Houseman & Assc,
12337 Jones Road, Houston,
Texas 77070.
FOR SALE
H.P. 3800A EDM with power
unit, very good condition.
$2,500 or best offer
phone (209) 299-5575