Operating Instructions and Installation Instructions

ComNav Vector G2/G2B Installation & Operation Operation

Document PN 29010078 V2.0 - 50 -

DRAFT #3 – 29 May 2009

Using PocketMAX PC

Full instructions are in the PocketMAX User Manual.

The system must be wired as shown in Figure

14 or Figure 15.

Note: PocketMAX PC may not always run properly on some PCs. It has

been known to hang up, and/or crash the PC (especially on an older,

slower PC), and/or leave the G2 in an invalid state.

ComNav recommends that you use PocketMAX only on a fairly

new PC, with a fast CPU, lots of RAM, and “standard” COM ports.

L Caution! Please pay attention to the “… doing many things …”

warning in the first section of the PocketMAX manual!

Also, please note that PocketMAX was designed to support all of

Hemisphere GPS’ products – and so some of its features do not

apply to the G2

Some points to be aware of, if you wish to use PocketMAX:

• It does not “know” about a few sentences that the G2 supports (e.g., the

$GPHDM sentence

); thus, it is not possible to control those sentences with

PocketMAX.

• It does not know the full range of Update rates that a few sentences can be set to

(e.g., $GPGSA & $GPGSV can be set to 0.2 Hz).

• Each time you start it, you must select “Hemisphere Vector” as the type of

Receiver in use, in the drop-down selector box on the program’s start-up screen;

that is the closest type of Receiver to a G2 that PocketMAX can be set for:

Figure 19 – PocketMAX PC GPS Receiver Type Selection

Using a Navigator G2

The Navigator G2 GPS Compass Display System is the easiest & best way to monitor

and control a G2.

Full instructions are in the Navigator G2 Installation & Operation Manual.

The system must be wired as shown in Figure

12, and in the Navigator manual.

Updated versions of PocketMAX may be released in future; please check on Hemisphere GPS’s web site. The

current version when this manual was being written was 2.2.0.

HDM & the other “unknown” sentences/parameters were part of the customizations added in ComNav’s variant of

the Hemisphere Crescent product, but they were added after PocketMAX was designed.