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Ten-Tec R4020, Manual

The Ten-Tec R4020 is an exceptional radio transceiver equipped with user-friendly features and advanced technology. Enhance your radio communication experience by downloading the detailed user manual for free from our website. Discover the full potential of the Ten-Tec R4020 and optimize its functionalities with this comprehensive manual.

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Summary of Contents for R4020

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Page 2: ...DC voltage or battery pack can be connected to the transceiver It has a built in polarity protection circuit Antenna Any resonant antenna can be connected directly to the antenna ANT with a BNC connector If a non resonant antenna is used an antenna tuner will be necessary Headphones A Stereo headset can only be connected to the headphone port PHONE impedance 8 32 ohm Do not use a Mono plug Key Pad...

Page 3: ...ss the V M SAV button for 2 seconds the LCD screen will display SAVE the current frequency and current mode will be stored in the Memory Location selected RIT MOD button Click this button to enter or exit RIT function A dash will be displayed to the right of the frequency display as shown above When in the RIT mode turning the tuning knob clockwise raises the frequency as indicated by the up arrow...

Page 4: ...Steps While in receiving mode pressing the tuning knob lightly will change the tuning step to either 100Hz or 1KHz in RIT mode 10Hz and 100Hz As the change is made the position in the display that the step is being changed to will momentarily display an underscore _ for verification of the change If you press the tuning knob for 2 seconds the tuning step will be 100KHz This operation can not be us...

Page 5: ...short click of the CQ SET button to exit you will hear Morse code letter E or wait for several seconds and it will automatically exit Turn off the automatic call CQ function If you do not want the automatic call CQ function The following operation will cancel this feature Press CQ SET button and hold about two seconds you will hear the Morse code letter S continue to hold down the CQ SET button un...

Page 6: ...ch is in the off position Using the supplied AA Battery packs and connector with cable Wire the packs in series The packs should be wired so that the black wire from one pack connects to the outside pin of J2 Pin 1 that is closest to the board edge The red wire from the other pack connects to the J2 Pin 2 the pin furtherest from the board edge Now connect the remaining red and black wires from the...

Page 7: ... 5V L5 4 7uH L4 2 2uH C43 22P C42 100P C41 39P C36 0 01 C39 0 1 R15 10K 5V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 5V LCD1602 RB1 RB2 RB3 RB4 RB5 RB6 RB7 RB0 INT VDD VSS RC6 RC7 RC5 SDO RC4 MCLR VPP RA0 RA1 RA2 RA3 RA4 RA5 VSS OSC1 CLKIN RC0 RC1 RC2 RC3 OSC2 CLKOUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 IC4 PIC16F73 S2 R17 1K S4 RC1 RC2 RA3 RA2 RA1 RA0 C65 470uF ...

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