CONVENIENCE FEATURES

DUAL RECEIVE

Using Headphones for Dual Receive

To take advantage of dual reception, you will want to connect stereo headphones to the PHONES jack. Like the AF GAIN control, headphone audio mixing can also be configured as desired from Menu item “089 rout HEADPHN.” Three audio mixing schemes are selectable as follows:

SEP: Audio from the Main band (VFO-A) receiver is heard only in the left ear, and Sub band (VFO-B) receiver audio solely in the right ear.

Con1: Audio from both Main band (VFO-A) and Sub band (VFO-B) receivers can be heard in both ears, but Sub band (VFO-B) audio is attenuated in the left ear and Main band (VFO-A) audio is attenuated in the right ear.

Con2: Audio from both Main band (VFO-A) and Sub band (VFO-B) receivers are combined and heard equally in both ears “Monaural” mode).

Sideband Diversity Reception

Here you receive a single AM signal through the two re- ceivers, each receiving the opposite sideband. Skywave- propagated signals often show phase distortion in this mode, but it gives you a view of the entire passband, from which you can then select the best sideband for listening (or for SWL Dx’ing, you may want to listen to both sidebands at the same time, to get the best copy). On groundwave signals, where the phase of the sidebands is likely to be the same, there is an interesting sense of depth to the signal.

To tune in a signal using this mode, you should have stereo headphones connected to the front panel PHONES jack.

￿Set the Main band (VFO-A) to either LSB or USB mode, and tune for zero beat on the desired signal.

￿Press the [A￿B] button to copy this mode and fre- quency into the Sub band (VFO-B), then press the mode button to select the opposite sideband for the Main band (VFO-A).

￿If using headphones, set the headphone mixing scheme to the “Con1” mode via the Menu item “089 rout HEADPHN,” and activate dual reception.

￿Adjust the [AF GAIN] knob(s) to balance the volume of the two receivers.

￿If interference is present on one of the channels, you may have to turn its [AF GAIN] knob to suppress that channel (or press the green [RX] LED/button to dis- able the receiver with the sideband experiencing inter- ference). Otherwise, try changing the headphone au- dio mixing scheme to “Con2” or “SEP” in the Menu item “089 rout HEADPHN,” for different effects (or try settings with similar effects on your external am- plifier). Although you don’t get the “stereophonic” ef- fect in the monaural mode, the two signals are still mixed, offering the potential for much better copy than in regular AM or even single-sideband ECSS modes.

FT-2000 OPERATING MANUAL

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