■Preamplifier

P.AMP

■Attenuator

ATT

FUNCTIONS FOR RECEIVE

5

The preamp amplifies received signals in the receiver front end, to improve the S/N ratio and sensitivity. Set this to preamp 1 or preamp 2 when receiving weak sig- nals.

➥Push [P.AMP] (MF3) several times to set the preamp OFF, preamp 1 ON or preamp 2 ON.

P.AMP

 

For all HF bands

 

1

 

 

P.AMP

 

High-gain preamp for 24 MHz band and

2above

✔About the “P.AMP2”

The “P.AMP 2” is a high gain receive amplifier. When the “P.AMP 2” is used in the presence of strong electromagnetic fields, distortion sometimes results. In such cases, use the transceiver with the “P.AMP 1” or “P.AMP OFF” setting.

The “P.AMP 2” is most effective when:

•Used on bands above 24 MHz and when signals are weak.

•Receive sensitivity is insufficient when using low-gain antennas, or while using a narrow band antenna (such as small loop, a Beverage antenna or a short Yagi antenna).

The attenuator prevents a desired signal from distortion when very strong signals are near the desired frequency or when very strong electromagnetic fields, such as from broadcasting stations near your location.

➥Push [ATT] (MF4) several times to set the attenuator 6 dB, 12 dB, 18 dB or attenuator OFF.

➥Push and hold [ATT] (MF4) for 1 sec. to turn the at- tenuator function OFF.

ATT

 

6 dB

 

6dB

 

attenuation

 

 

12 dB

ATT

 

12dB

 

attenuation

ATT

 

18 dB

 

18dB

 

attenuation

5-9