Alinco 235T Gebruikershandleiding - Pagina 2

Blader online of download pdf Gebruikershandleiding voor {categorie_naam} Alinco 235T. Alinco 235T 6 pagina's. Vhf/uhf radios

important to know how to terminate a function selection. On the Alinco, you push the V/M

function key to terminate or close function selection.

SIMPLEX OPERATION: Simplex is the simplest mode of operation. Simplex does not

involve a repeater and is used to communicate with a "near by" ham who is approximately in

your line of sight. Line of sight could be several miles away if you are standing on top of a hill,

or less than a half mile if you are surrounded by hills, buildings or other obstructions.

To operate simplex you tune the radio to the frequency that you and the ham that you want to

talk to agree upon. In addition, you have to turn off the radio's repeater frequency shift

function. Frequency shift is utilized only when communicating through a repeater. It is not

used for simplex operation. Finally, set the radio's output power to an appropriate level (usually

low or medium power), set the squelch control to eliminate background noise, and turn the

volume control to a comfortable listening level. You are now ready to begin simplex

communications. These steps are described in more detail below

Frequency Selection: Radios have two operating modes, VFO mode and memory mode. To set

the radio to the correct frequency you must be in the VFO mode. If the radio is in the memory

mode, an M will appear on the left edge of the display. If you are in the memory mode, the

V/M function key must be pushed to enter the VFO mode (the M will disappear from the

display).

The Variable Frequency Oscillator (VFO) is the module that controls the radio's frequency.

Turning the Tuning Knob causes the radio to change frequency in very small steps. If the

person that you want to talk to is on a frequency of 147.555 MHz and the radio is tuned to

144.000 MHz, it will take you all day to "crank" the Tuning Knob to a frequency of 147.555

MHz. To move across the band quickly push the MHz function key. The display will change to

144. Turn the Tuning Knob 3 clicks. The frequency display will change from 144 to 145, then

146, and finally 147. Pushing the MHz key again puts the radio back in the normal mode. Now

turn the Tuning Knob until you reach 147.555 MHz.

Turn Off Shift: When communicating through a repeater, the frequency that you are listening

to (the repeater output frequency) will be automatically changed (shifted) by the radio to the

repeater input frequency when you begin to transmit. In simplex mode you do not want this to

happen. In simplex mode, the frequency that you are listening to is also the frequency that you

want to transmit on. To ensure that this happens, you must turn off the shift function. Notice

that the word SHIFT is displayed above the MHz function key. Since SHIFT is written above

the key, it means that you activate the Shift function by first pushing the Function (FUNC) key

and then the MHz key. Repeating this two keystroke operation will cycle you through three

options, minus shift (a – appears at the top of the display), plus shift (a + appears at the top of

the display), no shift (neither a + nor – symbol appears at the top of the display). It is this last

option (no shift) that you want for simplex operation.

Power Level: The Alinco radio has three transmit power levels, High, Medium, and Low. To

minimize interference to others and to minimize the drain on your power supply or batteries, set