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Appendix K. RF401/RF411 Pass/Fail Tests

(9) Make sure that no antennas

are attached to the RF401/RF411s

(10) Label the other RF401/RF411, “Remote”

(11) Insert jumper into the Remote RF401/RF411’s RS-232 connector pins 2

and 3 (using a U-shaped portion of a paper clip) allowing data received

from base RF401/RF411 to be transmitted back to terminal screen by

remote RF401/RF411.

RF401/RF411’s RS-232 Connector (female)

(12) Connect 12V power to Remote RF401/RF411 (Field Power Cable (Item #

14291) connected to a 12V battery (battery can be an 8 cell pack of

alkaline A, C, or D cells, or a lead-acid battery)).

If your 12V power supply is a battery pack or rechargeable

battery, make sure that the batteries are fresh or well-charged so

they can supply the 75 mA peak current needed when the

RF401/RF411 is transmitting in order to obtain valid test results.

NOTE

For safety, people should maintain 20 cm (8 inches)

distance from antenna while RF401/RF411 is transmitting.

CAUTION

(13) Type 8 groups of 5 characters on the terminal (aaaaabbbbbccccc etc.)

(14) You should see 100% of the characters typed echo back to the screen

TESTING ANTENNAS

After setting up the terminal program and verifying the integrity of the COM

port, serial cable, and RF401/RF411s, you are ready to test an RF401/RF411

antenna. Prepare to test an antenna by:

• Orienting RF401/RF411s so that the antenna connectors are on top

• Fastening RF401/RF411s to cardboard boxes or other non-metallic

structures maintaining antenna connectors 20 inches above the floor.

(1) TESTING ¼ Wave Antenna

(a) Connect 12V power to base RF401/RF411 and remote RF401/RF411.

We recommend AC adapter Item # 15966 or a Field Power Cable

Item # 14291 connected to a 12V battery pack or 12V power supply.

K-4

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Campbell RF400 Handbuch Seite 106