<i>Icom</i> <i>IC-9100</i><i>Transciever</i>
<i>Icom</i> <i>IC-9100</i><i>Transciever</i>
  • © 2026 Neil Austin Contact Me 0

Icom IC-9100Transciever


Rig Attribute My Station Configuration
Transceiver Unit Icom IC-9100 All-Mode Base Station
HF / 6m / 2m Power 2W – 100W Output
70cm (UHF) Power 2W – 75W Output
23cm (SHF) Power 0.5 – 10W Output
Signal Processing Twin-PBT, Digital Signal Processing (DSP) & Notch Filter
Digital Modes Layout Core integration via single USB rig control interface

About the IC-9100

The Icom IC-9100 forms the main multi-band backbone of my amateur radio station, covering everything from HF up to UHF. To expand the shack's operational capabilities, I have bypassed traditional standalone setups to integrate this rig directly alongside specialized panadapter hardware.
By split-routing the IF or antenna system out to an SDRplay RSP1a SDR receiver, I can run real-time visual waterfall tracking via SDR software on the bench side. This gives me a massive visual panadapter layout that compliments the rig's internal filtering and automatic notch systems


  • USB Port Interfacing: Handled via a single short USB run to deliver concurrent CI-V rig control alongside integrated soundcard audio for digital modes.
  • Panadapter Extension: Coupled to the SDRplay unit to provide widescreen spectrum monitoring over active operating frequencies.
  • Amplifier Integration: Fully wired for automatic band-switching control and ALC feedback lines when driving external amplifiers.

Modes of operation

As I have already mentioned, with the IC-9100 you can chose many modes of operation. Here are some links to Wikipedia for a general and technical insite into the various modes of operation. Click on the appropriate mode ie. CW,RTTY etc.

  • CW Morse Code
  • RTTY Radio Teletype
  • AM Amplitude Modulation
  • FM Frequency Modulation
  • LSB Lower Side Band
  • USB Upper Sideband
  • DV Digital Mode of operation used by ICOM commonly known as D-Star.

Bands (Fully Loaded) HF 1.6 Mhz to 30 Mhz, 50Mhz, 144Mhz, 432Mhz, 1296Mhz


Choosing the SDR/Panadapter for the job

RSP1A
CAT Rig Control Integration: The system uses an SDRplay RSP1A connected directly to the radio's antenna path. Full bidirectional CAT synchronization is handled via SDRuno panadapter software.
Software Interfacing: Ham Radio Deluxe (HRD) is serially software-ported directly into SDRuno. This cross-communication layout allows the HRD logbook and DX cluster links to seamlessly command frequency changes in both directions across all platforms simultaneously.

Hardware Protection Circuit: To safeguard the sensitive SDR front-end during TX cycles, an RF isolation relay switch automatically grounds the input of the RSP1A whenever the radio keys up. Concurrently, the CAT system commands the linear amplifier to engage and select the correct low-pass filter profile for the operating band.

Advanced Features: Integrated plugins allow live DX cluster callsigns to map directly onto the active waterfall layout alongside open-source modules for WeeFax, SSTV, and local aircraft monitoring.

Stacks Image 52
Panadapter Software SRDuno running plug-in displaying call-signs of stations along the powerful waterfall.
Stacks Image 54