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To set up the RoMac 10 Band Transmit Graphic Equalizer & Receive DSP software, you must route your amateur radio’s audio through your PC’s sound card using physical or virtual audio cables. This specialized software allows ham radio operators to shape their transmit audio and process incoming weak signals using advanced digital signal processing (DSP) filters. Hardware Connection Strategy

Before configuring the software, establish the physical connections between your transceiver and your computer’s sound card:

Transmit (TX) Routing: Connect your studio or desktop microphone to your computer sound card’s Line In / Mic Input. Route the PC’s Line Out / Headphone Out to the transceiver’s auxiliary or rear-panel audio input.

Receive (RX) Routing: Connect the transceiver’s External Speaker or Line Out jack to the computer sound card’s Line In port. Connect your headphones or speakers to the sound card’s remaining speaker output.

PTT Control: Use an external device like a RIGblaster interface or the radio’s VOX feature to handle Push-To-Talk triggering. Step-by-Step Software Configuration 1. Audio Device Selection

Open the software and navigate to the audio settings panel to map your channels correctly:

Set the Transmit Audio Input to the physical hardware device where your microphone is connected.

Set the Transmit Audio Output to the sound card port feeding your radio’s microphone/data line.

Set the Receive Audio Input to the port connected to your radio’s speaker out.

Set the Receive Audio Output to your actual PC speakers or headphones. 2. Configuring the 10-Band Transmit Equalizer

The transmit side gives you ± 16 dB of control over ten distinct frequencies to optimize voice punch and clarity:

Adjust the independent Bass and Treble sliders first to quickly establish your broad audio profile.

Fine-tune the individual 10-Band sliders to eliminate “muddy” mid-range frequencies or boost high-end frequencies for better DX readability.

Utilize the built-in Low Pass and High Pass filters to clip unnecessary low-end rumble (variable from 25 Hz to 300 Hz) or high frequencies that exceed your transceiver’s bandwidth. 3. Setting Up the Receive DSP

The Receive DSP engine focuses on pulling weak signals out of the noise floor:

Turn on the DSP Noise Reduction to eliminate background static and hiss.

Use the Bandpass filters to narrow down the target signal window, cutting off adjacent channel interference.

Adjust the Receive EQ sliders to boost the highs if a weak Single Sideband (SSB) signal sounds too muffled to copy. 4. Saving Global Profiles

Once you find settings that work perfectly for your station layout, save them as a Global Profile within the software. This allows you to rapidly hot-swap between an enhanced high-clarity “DX/Contest Profile” and a warmer, broader “Rag Chew Profile”.