Acom 2000R Operating Manual

Also see for 2000A: Operating manual

Acom 2000R Operating Manual Manual pdf 19 page image

184-2. MANUAL TUNE sub-menuC A U T I O NDuring manual tune do not apply continuous drive longer than 3 minutes and afterthat leave pauses of 1-2 minutes for cooling of the tubes.If for some reason you prefer to match the antenna impedance manually, you can do it in the MAN.TUNEsub-menu. The procedure starts as for AUTO TUNE, but you will need to adjust the LOAD and TUNEsettings yourself:Below the inscriptions TUNE and LOAD are indicated the numbers of the current positions of themotors which control the respective capacitors. To the left of them there are arrows indicating whichway the automatic procedure would move the motor (they are correct only at drive power of 5 to50W). When changing the direction of the arrows you will hear a sound signal.The current output power is shown below Pout on the display.By means of the and buttons you can increase or decrease the step number of the motorselected in brackets. With the and buttons you can select which motor is to be controlled orselect STO (store), in order to memorize the tuning done as USR in the nonvolatile memory.To leave the procedure, remove power and press .N O T EIf you adhere to the tune-up criteria following the arrow prompts, you will achievethe same results as AUTO TUNE. Because of this, the MAN.TUNE procedure isonly appropriate if you have tune-up criteria of your own. We recommend you usethe AUTO TUNE procedure instead.4-3. MEASURE sub-menuSub-menu MEASURE can be used for control of the technical state of the amplifier and the parametersassociated with it . The LCD is divided into two equal display areas, and in either you can monitor anyof the 20 parameters provided for measuring, for example TEMP-F and DC-INPUT:With the and buttons you can select the item to be measured (listed in an alphabetic order),and with and - which display area. When ENT is pressed, the LCD will give a short descriptionof the parameter selected. This display will appear on the LCD for 5 seconds.