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VHF radio Specifications

MURS 

(Multiuse 

Radio 

Service) 

frequency

151.82 MHz 

151.88 MHz

151.94 MHz

154.57 MHz

154.60 MHz

VHF range

Up to 7 miles (11.2 

km) - line of sight

DC 40 output 

power

2 watts

Troubleshooting

resetting the Device

If the device stops responding, you can 

reset the device.
1.  Remove the batteries.

NOTE

: This does not erase any of your 

data or settings.

Status information

Status information is provided on the 

main menu and when you press and 

quickly release  .

Indicates the satellite signal 

strength.
Blinks when the device 

detects a signal (for example, 

a DC 40) on the channel it is 

receiving.
Indicates the remaining 

battery power. 

GARMIN MISC ACCESSORIES

MISCELLANEOUS PARTS

Summary of Contents for Astro 320

Page 1: ...Astro 320 quick start manual GPS enabled dog tracking system...

Page 2: ...g Batteries in the Astro The Astro operates on two AA batteries not included Use NiMH or lithium batteries for best results 1 Remove the battery cover by turning the D ring 1 4 turn counterclockwise a...

Page 3: ...charging The blue LED is solid when the DC 40 is fully charged Registering Your Device Help us better support you by completing our online registration today Keep the original sales receipt or a phot...

Page 4: ...40 both devices must acquire GPS satellite signals Acquiring satellite signals can take a few minutes 1 Go outdoors to an open area away from tall buildings and trees 2 Press and quickly release The s...

Page 5: ...screen instructions Starting a New Hunt 1 From the main menu select Start New Hunt 2 Follow the on screen instructions Your current location is saved as Truck so you can easily navigate back to this l...

Page 6: ...D number to a dog Assigning a Dog ID Manually This requires wireless communication with the DC 40 You must turn on the DC 40 and bring it within range of the Astro You must assign a new ID number to t...

Page 7: ...ity to the Astro It may cause irreversible damage to the Astro GPS antenna VHF antenna Power key Display Keypad USB port under weather cap microSD card slot under battery door Mounting spine Battery c...

Page 8: ...menu for the active page Press twice to open the main menu ENTER Press to select options and acknowledge messages Rocker Press to view or scroll through options and to move the map pointer IN Press t...

Page 9: ...ightness levels TIP You can also press and quickly release to cycle through the brightness levels 3 Press ENTER to select a brightness level and close the menu Astro and DC 40 Tips Turn on the DC 40 a...

Page 10: ...de the quality of the signals Keeping an unobstructed line of sight between your Astro and your dog s DC 40 produces the best communication signal Obstructed radio waves result in a poor signal To ach...

Page 11: ...e stops responding you can reset the device 1 Remove the batteries note This does not erase any of your data or settings Status Information Status information is provided on the main menu and when you...

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