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Icom 756 pro ii no tx power lightning full#
It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances the application security. The Cortex ®-M7 core features a single floating point unit (SFPU) precision which supports all ARM ®single-precision data-processing instructions and data types. (p.Description The STM32F756xx devices are based on the high-performance ARM ®Cortex ®-M7 32-bit RISC core operating at up to 216 MHz frequency. The control can be set as ‘Auto’ (RF gain control in SSB, CW and RTTY squelch control in AM and FM) or squelch control (RF gain is fixed at maximum) in set mode as follows.12 to 1 o’clock position is recommended for any setting of the control.The squelch is particularly effective for FM.The squelch removes noise output from the speaker (closed condition) when no signal is received. I RF GAIN CONTROL/SQUELCH CONTROL (outer control)Īdjusts the RF gain and squelch threshold level. Other manufacturer’s microphones have different pin assignments, and connection to the IC-756PROII may damage the transceiver. Use Icom microphones only (supplied or optional). This will avoid possible damage to the transceiver by ignition voltage spikes.ĭuring maritime mobile operation, keep the transceiver and microphone as far away as possible from the magnetic navigation compass to prevent erroneous indications.īE CAREFUL! The heatsink will become hot when operating the transceiver continuously for long periods.īE CAREFUL! If a linear amplifier is connected, set the transceiver’s RF output power to less than the linear amplifier’s maximum input level, otherwise, the linear amplifier will be damaged.
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Make sure the transceiver power is OFF before starting the vehicle. When transceiver power is ON and your vehicle’s engine is OFF, the vehicle’s battery will soon become exhausted. Place unit in a secure place to avoid inadvertent use by children.ĭuring mobile operation, DO NOT operate the transceiver without running the vehicle’s engine. Be aware that temperatures on a vehicle’s dashboard can exceed 80☌ (+176☏), resulting in permanent damage to the transceiver if left there for extended periods.ĪVOID placing the transceiver in excessively dusty environments or in direct sunlight.ĪVOID placing the transceiver against walls or putting anything on top of the transceiver. NEVER expose the transceiver to rain, snow or any liquids.ĪVOID using or placing the transceiver in areas with temperatures below –10☌ (+14☏) or above +50☌ (+122☏). RNEVER let metal, wire or other objects touch any internal part or connectors on the rear panel of the transceiver. This could cause a fire or ruin the transceiver. RNEVER apply more than 16 V DC, such as a 24 V battery, to the jack on the transceiver rear panel. RNEVER apply AC to the jack on the transceiver rear panel. This may result in an electrical shock or burn. RWARNING HIGH VOLTAGE! NEVER attach an antenna or internal antenna connector during transmission.