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Compare 6400(M) and 6600(M) models
Recommended that you rotate screen sideways to view in landscape for mobile. FLEX-6400 FLEX-6400M FLEX-6600 FLEX-6600M MSRP $ 2299 $...
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SmartSDR v3.9.18
File Download: SmartSDR for Windows v3.9.18 Click the link above to download SmartSDR for Windows v3.8.23 The SmartSDR for Windows...
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SmartSDR v3 Changelog
The SmartSDR ChangeLog file is a cumulative listing of all software changes in SmartSDR v3 including SmartSDR for Windows, SmartSDR...
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SmartSDR v3.x API (FlexLib)
SmartSDR FlexLib provides access to the SmartSDR TCP and UDP IP APIs using .NET classes and events. Access to SmartSDR...
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SmartSDR v3.9.18 Release Notes
SmartSDR v3.9.18 Release Notes. Release Notes contain pertinent information related to new software features, bug fixes, and release-specific installation information...
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Aurora
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What is Aurora?
FlexRadio has developed a new HF transceiver with a 500W output on 160-10m HF bands (200W on 6m). This radio...
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Why is the Aurora transmitter so efficient?
The Polar Explorer © 2025 transmitter is so efficient because it replaces legacy linear amplification with switch-mode amplification — specifically...
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Why is the Aurora radio so small for 500W?
The transmitter is extremely efficient, which results in the need for a much smaller heat sink. The reduced heat sink...
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Does the Aurora include Adaptive Predistortion – SmartSignal?
SmartSignal is included with all Aurora models.