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IC-7300 Speech Processor vs Compression - Real Difference?

Working on optimizing my IC-7300 SSB audio and wondering about the practical differences between the built-in speech processor and external compression. Manual suggests keeping ALC between 30-50% with processing off, but I'm seeing better average power with processing enabled.

Currently running mic gain at 35% with processor level at 60%. Some suggest much lower mic gain settings (5%) can still achieve full 100W PEP with proper setup. What's your experience with finding the sweet spot between intelligibility and splatter?

Too much processor input creates that harsh Darth Vader sound and drives background noise, but I need the extra punch for DX work. Anyone found good baseline settings for the 7300's DSP chain?

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  • Emily Williams
    Emily Williams

    Watch your ALC meter during testing - keep it in the recommended range, not pegged at max. The 7300's processor is quite good when used conservatively. Minimal processor input with enough output drive

  • Rebecca Turner
    Rebecca Turner

    Many operators crank up mic gain and processing trying to see 100W average, then wonder why their audio sounds distorted. SSB should only show about 30W average with proper mic gain - the mistake is t

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Watch your ALC meter during testing - keep it in the recommended range, not pegged at max. The 7300's processor is quite good when used conservatively. Minimal processor input with enough output drive for proper ALC indication works best for me.

Many operators crank up mic gain and processing trying to see 100W average, then wonder why their audio sounds distorted. SSB should only show about 30W average with proper mic gain - the mistake is trying for 100W on average reading meters.

Started with similar settings on my 7300 but found setting TX bandwidth to 400-2600 Hz for DX work and leaving processor off with slightly higher mic gain actually gives cleaner results. Use a second receiver to monitor your signal - makes a huge difference in getting it right.

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