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RIT

Incremental Tuning, or receive incremental tuning, provides a means of adjusting the 

receive frequency without affecting your transmit frequency. This control is sometimes 

called a clarifier since it can be used to tune in SSB voice signals. But RIT can also be 

used in all modes, in the event that a station calls you slightly off-frequency. RIT and 

XIT use the tuning rate (1/10/100/200/300 Hz), taping 

K

 or 

L

.

XIT 

XIT or transmit incremental tuning, adjusts the transmit frequency without affecting the 

receive frequency. RIT and XIT use the tuning rate (1/10/100/200/300 Hz), taping 

K

 or 

L

.

• 

To use RIT or XIT

: First, tap 

G

 RIT (RX mode) or tap 

G

 XIT (TX mode).   

This turns on the “+0” on the display. Then adjust the offset using 

RIT/XIT

 knob.

• 

To zero the RIT/XIT offset

 tap 

H

.

J

 VFO LOCK/UNLOCK

When the mode is activated, the inscription appears in the upper line of the display 

(Lock), frequency tuning is not possible. To deactivate the mode, press the 

J

 

button again.

TRANSMIT SETTINGS

• 

Voice Modes (SSB, AM, FM)

: Choose a mode: Tap 

D

 to select 

A

 / 

B

F

 

or 

G

 mode.

• 

MON, Monitor

: Push 

N>

MON

 in the bottom line for MON on. Hold PTT to set the 

voice monitor level, rotate 

M

AF GAIN

 knob. High MON settings may result in audio 

clipping or distortion. Start with 3 to 5.

+

 <<          TONE         MON          >>

F

A

  Do not use the hand speaker-mic at the same time as monitor 

F

 function 

 in voice modes (

A

 

B

 

F

 

G

) — there is a risk of audio coupling with a 

high noise distorting the real audio.

• 

Adjust mic gain level: 

Push 

METR

 and select MIC, rotating 

M

TUNE/MULTI.

7

Содержание Discovery TX-500

Страница 1: ...HF 50MHz Transcever TX 500 QUICK START GUIDE...

Страница 2: ...On Off Clear RIT XIT VFO Memory Lock Unlock VFO Step VFO Power On Off Band Up Down Basic mode Passband lter Menu mode Receiver gain control RX mode Monitor volume TX mode Tune VFO A B Menu Settings RX...

Страница 3: ...EM DATA Connect a speaker or headphones with the appropriate pins 1 4 SPEAKER and SPEAKER Do not connect a speaker to ground pin 6 For connecting an external electret microphone that requires addition...

Страница 4: ...y 1 2 4 3 6 5 7 8 9 19 Function buttons 2 Information bar title TX RX mode Clock battery low Autogain control delay 1 10 Hight temperature alert Clock Supply voltage Step VFO Step RIT XIT Hz or LOCK V...

Страница 5: ...r output PWR SWR MIC ALC Transmit mode Power output NUM SWR NUM Receive mode S meter 6 Info block 2 A C B D F G E L I J K Noise reduction ON Noise blanking ON Notch lter ON Attenuator ON Monitor ON VO...

Страница 6: ...our operating preferences To access the menu push F until the any menu entry appears in the pan adapter area To change the value of a menu parameter rotate MTUNE MULTI large knob To exit the menu push...

Страница 7: ...communications and can be found on 10 m and up DIG Digital Mode is usually used with a computer connected to the transceiver to send receive data Although SSB modes can also be used for this purpose...

Страница 8: ...mode This turns on the 0 on the display Then adjust the offset using RIT XIT knob To zero the RIT XIT offset tap H J VFO LOCK UNLOCK When the mode is activated the inscription appears in the upper li...

Страница 9: ...r at normal speech level but not in response to incidental noise Start with low settings 80 90 VOX Transmitter keying method The VOX switch selects either VOX or PTT keying for CW mode Most operators...

Страница 10: ...h or shifting the passband may attenuate an interfering signal above or below the desired one PRE ATT Preamp L and Attenuator D turns on the RF preamp It should be used only when signals are very weak...

Страница 11: ...line Menu Up Menu Down NumFil Sel RX SSB FIL 3 LF 600 3 Push N Sel once to select HF The display might now look like this RX SSB FIL 3 HF2700 2700 might be any other value Menu Up Menu Down NumFil Se...

Страница 12: ...ot turn on You must connect the external power supply correctly please see the pinout of the power connector in the section Controls end user interface OVERHEAT PROTECTION The transceiver has an inter...

Страница 13: ...han 1 0 If the SWR value is 3 0 or more the SWR indicator on the display will be inverse the transceiver will automatically reduce the power output If the value of SWR is greater than 3 0 then the out...

Страница 14: ...You can download the latest version of the complete user manual and device firmware updates from the official Lab599 website lab599 com downloads Complete User Manual and Firmware Updates 13...

Страница 15: ...try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment int...

Страница 16: ...Lab599 inc 658200 Russia Altai region Rubtsovsk city support lab599 com www lab599 com...

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