User's Manual

Rev B

feature with caution! In software versions which support coded transmitters, the CODE key

also allows code set selection from the command environment and controls the code

discrimination option in

SCAN and SIGNAL routines.

Finally, the

CODE key is used to set I.D. codes for identification of records from individual

receivers in automatic data logging situations

The top row of keys is reserved for application software and user-specified macros.

The

F3 key is currently reserved (in all versions) for turning the display luminescence

on or off (see below).

The

F2 key is used in several versions to set the active antenna outside of the Event_Log or

Code_Log program. This feature requires hardware option ASM_8_512 (antenna switch

controller) which provides drive signals for the ASP_8 antenna switch peripheral or, optionally,

logic level (5 Volt) outputs for other user equipment. One of eight antennas may be selected, as

well as (in W16) a combination of antennas 1-3 (select antenna "0"). Note that in software version

W16 the ASP_8 peripheral, antenna 0 will correspond to antenna 8 in the software. F2 is also

used for scratchpad data entry in the

SCAN routine.

The

F1 key accesses the system initialization functions. These include the New Prom routine,

which resets the value of all system variables to their factory default values and, optionally,

purges scan tables and data storage. Access to this routine is restricted by the pass code.

The

F0 key calls Event_Log, Code_Log, Temp_Monitor or other application programs,

described in the supplementary user's manual that accompanies each program.

F0-F3, like all other “upper” key functions, are normally prefaced by a SHIFT operation.

However, since the unshifted keys are used for numeric input only in certain specific situations,

the

F0-F3 keys, without SHIFT, can also be used for access to “single-keystroke” services. Currently

the

F0 key (without SHIFT) is used in all environments to toggle the audio noise blanking feature

(see the discussion of key functions in the

SIGNAL routine, above).

Panel Light Switch

SHIFT + F3 toggles the display luminescent panel on and off. Turning the panel off will conserve

battery power and extend the operating life on a charge by about 30%.

Hardware Reset

If you should experience a lockout (receiver won't respond to keys) or find yourself in a place

from which you can't escape, pressing

ESC and SHIFT simultaneously will cause a hardware reset.

F0- F3

0 - 3