HamShield Specifications
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Transceiver Frequency Range: 134-174MHz, 200-260MHz, 400MHz-520MHz
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Shield Compatibility: Arduino Uno, Arduino Mega, or any 5VDC Arduino header compatible board
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Max number of HAMShields per Arduino: 1 (Address selector may allow 2, but unsupported)
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Power Output: 500mW+ (provisional specification)
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Modulation: FM
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Channel Size: Selectable, 12.5KHz or 25KHz
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Transceiver IC: Auctus 1846S
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Antenna Connector: SMA
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Sub Audio: CTCSS, CDCSS, DCS, Supports different codes on both transmit and receive
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Headset Audio Connection: Smartphone style headset (TRRS connector)
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Arduino Audio Connection: PWM output with built in filter, ADC input with built in filter and amplifier
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Emphasis: Pre-emphasis, de-emphasis, and low pass filter can be enabled or disabled in software
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Vox Support: Yes, configurable
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Tone Detection: DTMF and programmable inband dual tone
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Tone Generation: DTMF and programmable inband dual tone, programmable inband single tone