Motorola CT-39A Manual De Usuario

21

FT-8800R Operating Manual

S

ELECTING

 

THE

 F

REQUENCY

 B

AND

Press and hold in the “left” DIAL knob to move the operating band on the “left” band

144 MHz 

 250 MHz  350 MHz  430 MHz   850 MHz  144 MHz ......

Press and hold in the “right” DIAL knob to switch the operating band on the “right” band

430 MHz 

  850 MHz  144 MHz  250 MHz  350 MHz  430 MHz ......

1) You may select the operating band on the “Main” band by pressing and holding
in the microphone’s [P1] key for 1/2 second.

2) The FT-8800R may be configured to operate either in a V-V or U-U mode, if needed.

B

ASIC

 O

PERATION

VHF-VHF (V-V) Operation

UHF-UHF (U-U) Operation

Notice

The FT-8800R may receive very strong signals on the Image frequency, and/or the receiver
sensitivity may be somewhat reduced by the combination of the “Left” and “Right” band
frequencies while Dual Receive operation is engaged.

If you experience interference that you suspect may be coming in via an “Image” path, you may
calculate the possible frequencies using the formula below. This information may be used in the
design of effective countermeasures such as traps, etc.

 (“Left” band freq. ± 45.05 MHz) x n1 – (“Right” band freq. ± 47.25 MHz) x n2 =

“Left” band IF freq. or “Right” band IF freq.

(n is an integer: 1, 2, 3, …)