Bird Brain AT-400 manual Understanding the Operating Modes, Swept Frequency vs. Single Frequency

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Chapter 4

Measure Match

Understanding the Operating Modes

The Antenna Tester is connected and the operating frequency band is selected (see basic operation). User selections are customized, the power is on, and the top level menu is displayed (also in basic operation). Now what?

Before we explain how to measure the antenna match, a brief discussion of your options is in order.

Since the AT-400 will change the way you test antennas, we suggest taking some time to explore the different operating modes and find what is best for your application.

Swept Frequency vs. Single Frequency

Swept frequency graphically displays the unit of measure over a band of frequencies. The cursor, a vertical dotted line, can be moved with the arrow keys to pinpoint a particular frequency. The measured match value and the frequency at the cursor position are shown at the top of the display.

Figure 4

 

Swept

1.35

Frequency

260.00 MHz

1.5

 

 

*

 

 

VSWR

 

 

1.2

 

 

65.00

MHz

520.00

Swept Single Field Util Test

Freq Freq Str

Single Frequency mode displays the unit of measure in a simulated analog meter graphic. This mode, particularly when audio is on, is useful when tuning an antenna.

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Contents Operator Manual AT-400 Antenna Tester Page Safety Precautions Shock Hazard Avoid Static Discharge Safety Statements Page Bird AT-400 Antenna Tester About This Manual Chapter Layout Page Table of Contents Items Supplied ChapterComponent Description Component DescriptionRight Arrow 109 Display DescriptionBlinks when sweeping Features Optional Equipment Bird AT-400 Antenna Tester Getting Started Basic OperationsLeft Arrow Key Out of Range Values Setting the Auto Shut-Off TimerMessages Software Parameter Factory Setting Return to Factory PresetsSet Serial Baud Rate Bird AT-400 Antenna Tester Power Supply InstallationAvoid Static Discharge Connecting the AntennaSwept Frequency vs. Single Frequency Understanding the Operating ModesMeasurement Units Auto Scale vs. Manual Scale Sweep Type-Single Hold vs. Continuous Select Frequency Band Swept FrequencySelect Auto or Manual Scale Select Measurement UnitsSaving a Trace Selecting the Sweep TypeSave a Trace Recalling a TraceClearing a Trace Limit TestingSelecting Limit Values Turn Audio On/OffPress the Trace Limit key Using a Trace as the LimitSelecting the Frequency Single FrequencyClearing a Limit Select Measurement Units Turn Audio On/Off Enter Gain Factor / Select Auto Gain Field Strength MeasurementBird AT-400 Antenna Tester Charging Batteries CleaningCalibration Operational Tests Power-upDisplay Test Battery TestDisplay Test Self TestBattery Replacement Battery / Fuse Replacement Fuse ReplacementNvram Test Fails TroubleshootingAntenna Tester will not power up ROM, EEPROM, RAM, A/D, TEMPR, PLL Test Fails Noise is Displayed During TestingStuck Keys Test Fails Antenna Tester indicates a Perfect MatchBird Service Center Customer ServiceParts List Specifications Menu Structure Limited Warranty

AT-400 specifications

The Bird Brain AT-400 is a cutting-edge unmanned aerial vehicle (UAV) designed for versatility and performance in various applications such as surveillance, surveying, and environmental monitoring. This advanced drone incorporates state-of-the-art technologies and features that set it apart in the rapidly evolving drone market.

One of the standout features of the Bird Brain AT-400 is its exceptional flight stability and maneuverability. With a lightweight carbon-fiber frame, the AT-400 boasts an aerodynamic design that ensures efficient flight even in challenging weather conditions. The aircraft is equipped with advanced navigation systems, including GPS and inertial measurement units (IMUs), enabling it to maintain precise positioning and altitude control.

Powered by a high-capacity lithium-polymer battery, the AT-400 offers an impressive flight time of up to 45 minutes, depending on payload and environmental conditions. This extended operational time allows users to cover large areas without frequently returning to base for recharging.

The AT-400 is designed for modularity, allowing users to easily switch out payloads according to mission requirements. It can support various sensors, including high-resolution cameras, thermal imaging devices, and multispectral sensors for agricultural monitoring. This flexibility makes it ideal for industries such as agriculture, construction, and disaster management.

Another critical feature of the Bird Brain AT-400 is its advanced data transmission system. The UAV utilizes real-time video and data transmission capabilities, allowing operators to monitor live feeds and collect important information during flight. This system ensures that critical data is available immediately, enhancing decision-making processes on the ground.

Safety is a paramount consideration in the design of the AT-400. The aircraft is equipped with multiple redundancy systems, including dual electronic speed controllers and fail-safe mechanisms to ensure that it can safely return to base in the event of an emergency.

In terms of user experience, the Bird Brain AT-400 comes with an intuitive ground control station, featuring a user-friendly interface that simplifies mission planning and operation.

Overall, the Bird Brain AT-400 combines powerful performance with innovative technology and user-centric design, making it an excellent choice for both professional and recreational drone enthusiasts seeking reliability, efficiency, and adaptability in the field.
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