Press the [ATT] button several times to set the desired attenuation level, per the chart below. OFF: Attenuator is off. -6 dB: The incoming signal power is reduced by 6 dB (Signal voltage reduces by 1/2) -12 dB: The incoming signal power is reduced by 12 dB (Signal voltage reduces by 1/4) -18 dB: The incoming signal power is reduced by 18 dB (Signal voltage reduces by 1/8) The selected attenuation level will be indicated in tje ATT column of the Key Function Display on the TFT display. To restore full signal strength through the Attenator circuit area, press the [ATT] button to restore the ATT display to the "OFF" position.

ADVICE: If background noise causes a high S-meter indication on clear freguencies, press the [ATT] button until the S-meter drops to about "S-1". This setting optimizes the trade-off sensitivity, noise, and interference immunity. Alos, once you have tuned in a station you want to work, you may want to reduce sensitivity further (add more attenuation) by pressing the [ATT] button to a higher setting. This reduces the strength of all signals (and noise) and can make reception more comfortable, especially during long QSOs. When looking for weak signals on a quiet band, you will want maximum sensitivity, so the IPO should be disabled and the [ATT] button should be set to "OFF" This situation is typical during quiet times on the frequencies above 21 MHz, or when using a small or negativ-gain receiving antenna on the other bands. End of "ATT"