SECTION 5 – AUDIO PANEL

5.1COM RADIO SELECTION

Pressing the COM1 MIC or COM2 MIC Key selects the active transmitter (i.e., microphone). The associated receiver audio (COM1 or COM2) also becomes selected when the COM MIC key is pressed.

To prevent deselecting the desired received audio when pressing another COM MIC key, press the already selected COM1 or COM2 Key before pressing the other COM MIC key.

Figure 5-2 Transceivers

5.2SPLIT COM FUNCTION

NOTE: Split COM performance is affected by the distance between the antennas and the separa- tion of the tuned frequencies.

Figure 5-3 Split COM Function

Pressing the COM 1/2 Key selects and deselects the split COM function. During split COM operation, the COM1, COM1 MIC, COM2, and COM2 MIC Keys are active.

When the COM 1/2 Key is selected, COM1 is used by the pilot for transmission and COM2 is used by the copilot. The COM1 MIC annunciator blinks when the pilot’s Push-to-talk is pressed and the COM2 MIC annunciator blinks when the copilot’s Push-to-talk is presssed.

In this mode, both the pilot and the copilot can transmit simultaneously over separate radios. The pilot can still monitor NAV1, NAV2, and MKR audio as selected, but the copilot is only able to monitor COM2.

5.3MARKER BEACON RECEIVER

The marker beacon receiver is always on. Only the marker beacon audio can be turned off. Figure 5-4 shows the marker beacon annunciators on the PFD.

When the MKR/MUTE Key is pressed, the key annunciator is lit and the audio tone can be heard over the speaker or headsets during marker beacon reception.

When the tone is active, pressing the MKR/MUTE Key once mutes the audio but does not affect the marker annunciator. The audio returns when the next marker signal is received.

To turn off the marker beacon audio, press the MKR/ MUTE Key once when there is no marker indication present, or press twice when an indication is present. The key annunciator will be extinguished when the marker beacon audio is turned off.

Outer Marker

Middle Marker

Annunciator

Annunciator

Inner Marker

Annunciator

Figure 5-4 Marker Beacon Annunciators on the PFD

5-2

Garmin G1000 Cockpit Reference Guide for the Columbia 350/400

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Garmin Columbia 350/400 manual COM Radio Selection, Split COM Function, Marker Beacon Receiver
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Columbia 350/400 specifications

Garmin has long been a leader in navigation and communication technologies, and the Columbia 350/400 series epitomizes its commitment to providing high-quality devices for adventurers and outdoor enthusiasts. These handheld GPS units offer an array of features that cater to both casual hikers and serious explorers.

One of the standout characteristics of the Garmin Columbia 350/400 is their robust design which is built to withstand the rigors of outdoor use. With an IPX7 water resistance rating, these devices can endure rain and even immersion in water, allowing users the confidence to carry them on any expedition. The rugged casing and reliable construction also ensure optimal durability in harsh environments.

Both models feature a high-sensitivity GPS receiver that ensures accurate positioning even in challenging environments with thick foliage or urban canyons. With its advanced satellite reception technology, users can expect fast and precise location tracking, which is critical for effective navigation.

The Columbia 350/400 series comes with a vibrant, easy-to-read display that enhances visibility under varying lighting conditions, making it easier for users to navigate trails and roads alike. The intuitive interface allows for smooth operation, enabling users to access their maps, tracks, and waypoints quickly.

Navigational maps are a vital component of these devices. Garmin equips the Columbia series with preloaded topographical maps, providing detailed terrain information that is essential for off-road navigation. Users can also customize their maps and download additional topographic data, ensuring they have the most accurate and relevant information for their adventures.

Another key feature of the Columbia 350/400 series is their long battery life, which ensures that users can rely on them during extended trips. The devices can run for hours on end and even incorporate a battery-saving mode to extend usability during longer journeys.

Additionally, the Columbia 350/400 supports various outdoor and fitness tracking features. Users can monitor their speed, distance, and elevation gain, enabling them to keep track of their physical performance. This makes the devices suitable for athletes and outdoor enthusiasts alike.

Overall, the Garmin Columbia 350/400 series combines durability, advanced navigation technology, and user-friendly features, making it an excellent choice for anyone looking to explore the great outdoors with confidence. Whether you're hiking, trekking, or simply navigating unfamiliar terrain, these handheld GPS units provide the tools necessary to enhance your experience and ensure you never lose your way.
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