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5. SQUELCH 

CONTROL:

 This knob is used to eliminate background noise 

being heard through the receiver, which can be disturbing when no 
transmissions are being heard through the receiver. To use this feature, turn 
the knob fully counterclockwise and then turn clockwise slowly until the 
background noise is just eliminated. Further clockwise rotation will increase 
the threshold level which a signal must overcome in order to be heard. Only 
strong signals will be heard at a maximum clockwise setting. 

 

6. MIC GAIN CONTROL/PUSH TB OFF SWITCH: 

Adjusts the 

microphone gain in the transmit and PA modes. This controls the gain to the 
extent that full talk power is available several inches away from the 
microphone. In the Public Address (PA) mode, the control functions as the 
volume control. Pushing this knob turns the Talkback circuit on and off.

 

 
7. TALKBACK (TB) CONTROL:

 Adjust this knob for desired volume of 

Talkback. This is used to monitor your own voice. For example, you could 
use this feature to compare different microphones. 

 
8.  ECHO CONTROL/PUSH OFF SWITCH:

 This control is used to adjust 

echo effect. Pushing this knob turns the Echo circuit on and off.

 

 

9. TIME 

CONTROL:

 This control is used to adjust intervals of echo. 

 

10. COARSE/FINE CONTROL/PUSH NB-ANL OFF SWITCH: 

Allows 

variation of the radio operating frequencies above and below the channel 
frequency. Although this control is intended primarily to tune in SSB signals, 
it may be used to optimize AM/FM signals. Pushing this knob turns the 
Noise Blanker (NB) / Automatic Noise Limiter (ANL) circuit on and off. The 
Noise Blanker (NB) is very effective in eliminating repetitive impulse noise 
such as ignition interference. 

 

11. RX/TX/OFF/RX SWITCH:

 When in the RX/TX position, the two clarifiers 

(Coarse and Fine) function on both receive and transmit. When the switch is 
in the RX position, the Fine clarifier functions on receive only and the Coarse 
clarifier still functions on both receive and transmit. When in the OFF 
position, both clarifiers have no effect on the frequency.  

 

12. CHANNEL SELECTOR:

 This control is used to select the desired transmit 

and receive channel. 

 

13. +10KHz LED:

 This LED lights green when the +10KHz function is on. 

 

 

 

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14.  FRONT PANEL METER:

 The front panel meter allows the user to monitor 

incoming signal strength, RF output power, SWR level and AM modulation 
level. 

 

15. ILLUMINATED  FACE  PLATE: 

All faceplate lettering will fully 

illuminate to allow the user easy viewing at night. This unique, solid state, 
backlight is designed to maximize night vision while minimizing eye fatigue. 
Therefore, it is ideal for switch and control recognition day or night. 

 

16. BAND SELECTOR:

 This switch is used to select the band. 

 

17. RF POWER SWITCH: 

This switch allows the user to adjust RF power 

output.  

 

18. MODE SWITCH: 

This control allows you to select one of the following 

operating modes: PA/FM/AM/USB/LSB. 

 

19. DIM/OFF/40dB PAD SWITCH:

 When in the DIM position, it lowers the 

level of brightness for the meter lamp, frequency display and channel display. 
When the switch is in the 40dB PAD position, the 40dB attenuation circuit is 
activated. When the switch is in the OFF position, neither the Dim circuit nor 
the Attenuation circuit will be active. 

 

20.  MOD LAMP/OFF/+10KHz SWITCH:

 When in the MOD LAMP position, 

the Mod Lamp circuit is activated. When the switch is in the +10KHz 
position, the frequency is shifted up 10KHz.  

 

21. FREQUENCY COUNTER: 

This display indicates the frequency of the 

selected channel. 

 

22.  5/6 DIGIT SWITCH:

 Pushing this switch will change the frequency display 

from a six digit readout to a five digit readout. It will turn the hundreds digit 
on and off. Then a frequency of 28.3056 MHz would read 28.305 MHz. 

 

23. NB/ANL LED: 

This LED lights green when the NB/ANL circuit is on. 

 

24. CHANNEL DISPLAY:

 The channel display indicates the current selected 

channel. 

 

25. PAD LED: 

This LED lights green when the 40dB attenuator circuit is on.

 

 

NOTES  

HIGH SWR ALERT:  

All three LEDs (NB/ANL, +10KHz & PAD) light red when 
your SWR is higher than about 3:1. This alert is accurate only 
in HI power.  This is not an exact indicator of 3:1 SWR, but it 
is an indication that you should check your SWR reading.

 

Summary of Contents for DX 93T

Page 1: ...D S 40 80 60 50 3 30 40 60 40 2 1 5 1 5 1 0 20 1 00 M AX 20 7 5 9 dB DX 93T 10 Meter Amateur Mobile Transceiver With Built in Frequency Counter StarLite Face Plate OWNER S MANUAL TABLE OF CONTENTS 1 P...

Page 2: ...allation of the radio Hold the mounting bracket with the radio in the location where the radio is to be installed Make sure nothing will interfere with either the radio or the mounting bolts Mark and...

Page 3: ...ernal speaker Keep the speaker away from the microphone to avoid acoustic feedback 5 CHAPTER 3 OPERATION CONTROL FUNCTIONS FRONT PANEL 1 MOD LAMP When switched on this Modulation indicator will illumi...

Page 4: ...sition both clarifiers have no effect on the frequency 12 CHANNEL SELECTOR This control is used to select the desired transmit and receive channel 13 10KHz LED This LED lights green when the 10KHz fun...

Page 5: ...our mouth and speak clearly in a normal voice This transceiver comes complete with a low impedance dynamic microphone B PROCEDURE TO RECEIVE 1 Be sure that power source microphone and antenna are conn...

Page 6: ...eased whereas in the LSB mode the transmitter s output frequency is decreased The result in listening to the receiver is that when the MODE switch is in the proper position either USB or LSB a true re...

Page 7: ...be used is provided with pre cut leads they must be revised as follows 1 Cut leads so that they extend 7 16 beyond the plastic insulating jacket of the microphone cable 2 All leads should be cut to t...

Page 8: ...he connections to pin 1 and 3 are made first and then the connections to pins 2 and 4 Use a minimum amount of soldering and be careful to prevent excessive solder accumulation on pins which could caus...

Page 9: ...Please include a note with a detailed description of the symptoms This is important because it will help the technician who works on your radio to locate your problem Intermittent problems are easily...

Page 10: ...Printed in Taiwan AT0949010G...

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