Note:
The desired receive frequency can also be entered directly by using the Numeric Keypad. For details of this operation please refer to the section
1.The frequency step is set automatically depending on the mode that has been selected. Different steps can be set by using the STEP key. The relationship bet- ween mode and step is shown below.
The step size in which frequencies are changed by the TUNING knob can be changed by the MODE key and/or
the STEP key.
Frequency Step
When a 10 Hz or 100 Hz frequency step is selected rapid tuning is possible by rotaing the TUNING knob quickly.
When the TUNING knob is rotated at about 3 revolutions a second a geometric increase in the tuning step occurs, that corresponds to the speed of dial rotation.
2.This geometric increase occurs in 10 Hz steps in the LSB, USB, CW, or FSK mode and with the STEP key OFF and in 100 Hz steps in the LSB, USB, CW, FSK, AM, and with the STEP key ON.
Operational convenience can be enhanced thru the use of both VFO A and VFO B.
Two VFO's are provided to allow you to change frequencies rapidly. You could set one VFO to the lower tuning range and the other VFO to the upper tuning limit. You' can set either VFO to any frequency you desire.
When the
(a) A = B key
Depressing this key causes the data contained in the inactive VFO (the VFO that is not currently being dis- played) to change to the same data contained in the active VFO (the one currently displayed). Both the fre- quency, mode and antenna selection are changed.
For example:
VFO A is set at 7 MHz in LSB, and VFO B is 21 MHz in USB. VFO A is the active VFO (show on the display). Depressing the A = B key will cause VFO B to change to 7 MHz in LSB.
In the HF position, the A = B key matches HF VFO A to HF VFO B; in the VHF position, it matches VHF VFO A to VHF VFO B.
Note:
Data can not be transferred between HF and VHF bands.
(b) A/B key
Allows selection of the desired active VFO. Each time this key is depressed the active VFO will alternate between VFO A and VFO B.
In the HF position, the A/B key functions on the HF VFO's only; in the VHF position, it functions on the VHF VFO's only.
Direct keyboard entry of the frequency is possible using the Numeric Keypad on the
1.Select the VFO mode.
2.Press the ENT key. The display will indicate.
3.Enter the desired operating frequency from Most Signi- ficant Digit to the Least Significant Digit. You do not have to enter trailing zeros, but you must enter leading zeros. (03.500.00MHz).
4.After the least digit has been entered press the ENT key again to signify you want the radio to change fre- quency. If you entered the frequency down to the near- est 10 Hz a beep will sound and the radio will automati- cally change to the new frequency without the need of pressing the ENT key for the second time.
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 tuning range of the radio will cause the display to return to the frequency of operation that was in use before the ENT key was pressed.
5.If you make a mistake while entering the frequency and have not yet pressed the ENT key, or entered the final digit, you may cancel the input by pressing the CLEAR key.
6.To the display shown before the ENT key was pressed. For the VHF range, a "1" (corresponding to 100 MHz) is displayed automatically. You can enter the frequency starting from the 10 MHz digit just as for the HF range.
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