The built-in tuning indicator visually helps in critical tuning.Īll of the following CW capabilities are included in the IC-9100: The built-in RTTY demodulator and decoder allow you to instantly read an RTTY message on the display. By changing the first IF filter width according to the operating mode, the desired signal is protected from adjacent inband signals at the later stages for better receiver performance. The IC-9100 comes with a built-in 15kHz 1st IF filter and can accept up to two optional filters (3kHz FL-431 and 6kHz FL-430).
Three first IF filters (3/6/15kHz) for HF/50MHz band Even a weak signal adjacent to st rong signals is clear ly received by the IC-9100. Using receiver design techniques introduced in Icom’s highest grade HF transceivers, the IC-9100 has an IP3 of +30dBm (typ.) in 14MHz band. The IC-9100 uses high efficiency power amplifiers and large heat sink providing stable output power, even during long periods of operation. Three types of high and low combinations can be stored in the memory as favorite settings. The transmit bandwidth is selectable from 100, 200, 300, 500Hz at the low-pass edge, and 2500, 2700, 2800, 2900Hz at the high-pass edge, respectively. It is useful for for breaking through the noise and complete the QSO. The digital RF speech compressor boosts average talk power, improving signal strength and readability in SSB mode. The noise blanker allows you to change the threshold level as well as blank duration parameter and attenuation level. The digital noise blanker reduces interference from pulse-type noise such as engine ignition. The 16-step variable noise reduction can significantly enhance the receiver's signal-to-noise ratio, giving you a clean, clear audio signal that may make the difference between making the contact or not. Three filter memories allow you to change filter settings instantly, a great help during contesting or other tough conditions.ĥ0Hz–500Hz (50Hz step), 600Hz–3600Hz (100Hz step)ĥ0Hz–500Hz (50Hz step), 600Hz–2700Hz (100Hz step)Īfter “building your own” digital IF filter, you can use the digital twin Passband Tuning (PBT) to shift and narrow the IF passband until the interference is gone and you can clearly hear that weak signal. You can quickly choose bandwidth, shape factor, and center frequency, so that you can work that rare DX station.
The IC-9100 DSP allows you to “build your own” digital IF filter. The AGC time constant presets (slow, medium and fast) give the flexibility and speed needed for working pile-ups. The AGC effectively works for the desired signal and rejects blocking by strong adjacent signals out of the filter passband.
#High and low power settings for cre 8900 manual
This powerful combination supports many digital processing features.ĭigital IF filters, manual notch filter and other digital functions are incorporated in the AGC loop management controlled by the DSP unit. The heart of the IC-9100 is the proven combination of the 32-bit floating point DSP and 24-bit AD/DA converters. See the table below for simultaneous receive pairs.ģ2-bit floating point DSP & 24-bit AD/DA converters * A triple conversion system is used for the 1200MHz band.Īs seen in the above figure, the IC-9100 has 3 independent receiver circuits from the antenna connector to the second IF mixer (image rejection mixer).
The digital signal processing (DSP) technologies and image rejection mixer make it possible to adopt this system. The double conversion system simplifies the electronic circuitry and reduces the number of components which cause internal distortion. Our answer to achieve this goal is to adopt a double conversion superheterodyne system*. Icom's basic idea about the best receiver circuit is to reproduce high fidelity audio without internal distortion. HF-Basis antennes ( Vertikaal, beam & dipool ).HF-Basis antennes ( Vertikaal, beam & dipool )
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