Kenwood TS-440S manual ~1ir, Transmit, ~udio signal

3-2-3. Direct keyboard frequency entry

Direct keyboard entry of the frequency is possible us- ing the numeric keypad on the TS-440S. This allows rapid changes in frequency without the delays encoun- tered when using other tuning methods.

1.Select the VFO mode.

2.Press the ENT key. The display will indicate

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3.Enter the desired operating frequency from Most Significant Digit to the Least Significant Digit. You do not have to enter trailing zeros, but you must enter a leading zero for frequencies between 1 and 3.99999 MHz or two leading zeros for frequencies between 0.1 and 0.99999 MHz. (03.500.00 MHz).

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4.After the last digit has been entered press the ENT key again to signify you want the radio to change frequency. If you entered the frequency down to the nearest 10Hz a beep will sound and the radio

will automatically change to the new frequency without the need of pressing the ENT key for the second time.

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For example: To enter 14.200.00 MHz there are two methods:

Method one: Press [ENT], [1], [4], [2], [ENT].

Method two: [ENT], [1], [4], [2], [0], [0], [0], [0].

Note:

Attempting to enter a frequency outside the tun- ing range of the radio will cause the display to return

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5.If you make a mistake while entering the frequen- cy and have not yet pressed the ENT key, or en- tered the final digit. you may cancel the input by pressing either the CLEAR key or standby switch.

3-2-4. AM reception

There are cases during AM broadcast reception, where interference in noticeable when SELECTIVITY is W, but

the intelligibility is poor with the radio in the M2 posi- tion, due to a lack of high frequency response. If this condition occurs place the SELECTIVITY switch to M2 and rotate the TUNING dial + / -1 kHz from the center frequency. It should be possible to find a point where

the interference will be a little greater, intelligibility should be improved.

Another method utilize.s the execellent receiver stabil- ity of the TS-440S by selecting USB or LSB and tun- ing to one of the sidebands of the AM signal. The only disadvantage to this method is that a 5 Hz beat tone might be detected along with the desired receive signal.

3-3. TRANSMIT

3-3-1. SSB (USB. LSB) mode

1.Set the MODE keys to USB or LSB. By internation- al convention frequencies below 10 MHz utilize the LSB (Lower Sideband) mode, and frequencies above 10 MHz use USB (Upper Sideband). The ac- tual switchover point on the TS-440S is 9.5 MHz. The TS-440S will select the proper mode when you tune to the desired frequency. You can override this by simply pressing the desired mode key.

2.Set the Meter switch to ALC

ALC PWR SWR

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3.Press the microphone PTT switch, or set the Stand by switch from REC to SEND.

4.Speak into the microphone and adjust the MIC gain control so that the meter deflection does not ex- ceed the ALC zone on voice peaks.

Note:-

Adjustment using the ALC meter provides greater ac- curacy than if you try and use the power meter for ad- justment. Never adjust for ALC deflection above the ALC zone, as this will cause distortion of the transmit-

~udio signal.

ALC zone

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