GENERAL DESCRIPTION OF CONTROLS AND INDICATORS

	When stowed, the only visible control is the power switch. It shows a 
red power-on light and a green power level indicator. When deployed, all of 
the available controls are visible.

¥PWR STBYÑPower standby light. If the tricorder is not used for more than 
ten minutes, this indicator will illuminate, and the tricorder goes into low-
power mode. Any new touch of any control will bring the device back up to 
full power. When the tricorder is stowed but performing ongoing tasks, low-
power mode does not occur.
¥F1/F2ÑControl function select switch. Most buttons on the tricorder have 
more than one function. This is a convenient toggle for often-repeated 
function changes and may be preprogrammed by the individual crew 
member. The F1/F2 switch is active during data operations only.
¥I and EÑThese two controls manage the source of sensory information, 
either the tricorder itself (Internal), or remote device (External), or both 
sources simultaneously. The remote device can be any sensor platform that 
uses the same data collection machine language. The term ÒplatformÓ 
denotes a vehicle operating on or above another planetary body, including 
the USS Enterprise or other spacecraft.
¥DISPLAY SCREENÑThis screen is capable of showing any realtime, stored, 
or computed image. The display area is similar in construction and function 
to Starfleet control panels and display screens, although the layering 
technique is simplified and the default image size is naturally smaller. 
Selected areas of an image may be enlarged by touch; many other screen 
functions may be customized using the standard tricorderÕs stored setup 
programs.
¥LIBRARY A/BÑThe standard tricorder contains a read/write drive to record 
information onto small crystal memory chips for later retrieval, or to load 
previously recorded information into the tricorderÕs main memory. Each chip 
has a maximum capacity of 4.5 kiloquads.
¥ALPHA BETA DELTA GAMMAÑThese indicators denote which data 
recording or retrieval activity is taking place in the tricorder library section. A 
more detailed readout of data operations can be called up on the display 
screen.
¥DEVICE INPUTÑEach of these three keys can be assigned to manage up to 
nine remote devices, for a total of twenty-seven different information 
sources. For a routine away mission, the default settings on power-up are 
GEO, MET, and BIO, covering geological, meteorological, and biological 
functions.
¥COMM TRANSMISSIONÑThis section controls the transmission of data 
and images to and from the tricorder through the STA. ACCEPT toggles the 
tricorder to accept one-way transmissions from a designated remote source. 
POOL allows for networking of the tricorder and one or more designated 
remote sources. INTERSHIP sets up a special tricorder-to-ship data link 
employing multiple high-capacity channels. TRICORDER sets up a similar 
high-capacity link, but to other tricorders. While all four modes can be active 
simultaneously, the system will slow down significantly. In practice, no more 
than two modes are usually necessary at one time.
¥EMRGÑThis is the emergency Òdump everything to the shipÓ button. It 
provides for non-error-checking burst mode data transmission in critical 
situations. In practice, this function can be used no more than two times 
before the standard tricorderÕs primary power is exhausted. All sensing tasks 
are suspended and power is maximized to the STA.
¥IMAGE RECORDÑThis section manages single or sequential image files 
recorded by the standard tricorder. The control has four divisions: 
FORWARD, REVERSE, INPUT, and ERASE. When used in concert with other 
tricorder functions, relatively complete documentation of an away mission 
can be achieved. At standard imaging resolution, at a normal recording 
speed of 120 Area View Changes (AVC)/sec, the tricorder can store a total of 
4.5 hours of sequential images. Higher speeds yield a proportionately lower 
total recording time.
¥LIBRARY BÑLibrary B is the primary storage area for sequential images, 
though the memory configuration may be changed to include other storage 
areas, depending on the application. I and E control the image source.
¥IDÑThis touchpad may be used to personalize a tricorder for default 
power-up settings, or as a security device for singleÐcrew member 
operation.