Ep400 ver. 1.0 e-tech co., ltd 1/16 ▶ table of contents◀ 1. Introduction 2. Description of unit 3. Technical specifications 4. Theory of operation 5. Circuit descriptions any changes or modifications to the equipment not expressly approved by the party responsible for compliance could void user’s au...
Ep400 ver. 1.0 e-tech co., ltd 2/16 1. Introduction ep400 has a compact size with a various features in the range of 403~520mhz. Ep400 has a various features shown as below. Ep400 constructed with a microprocessor controlled, temperature compensated phase locked loop(pll) frequency synthesizer. The ...
Ep400 ver. 1.0 e-tech co., ltd 3/16 3. Technical specifications 3-1 general 1) frequency range : 403 ~ 520 mhz 2) channels : 255 channels 3) channel spacing : 12.5 khz/25 khz 4) communication method : simplex 5) antenna impedance : 50 ohm 6) antenna : helical antenna 7) power supply voltage : li-170...
Ep400 ver. 1.0 e-tech co., ltd 4/16 3-3 receiver 1) receiver type : double super hetero type 2) sensitivity : -0.25uv e.M.F ( 12db sinad ) 3) frequency stability : ±0.00025%(±2.5ppm) 4) spurious rejection : -70 db 5) adjacent channel selectivity: -60 db (narrow) , -70 db (wide) 6) distortion : 5% (1...
Ep400 ver. 1.0 e-tech co., ltd 5/16 4-1 features & operation 1. Monitor press the monitor key momentarily to disable the tone squelch. 2. Radio call by using various 5tone, individual / group call is available. 16 receiving codes are available as well as open call. 3. Missed calls list 16 missed cal...
Ep400 ver. 1.0 e-tech co., ltd 6/16 4-2 lcd display and icons 1.Ant gaze ; shows the received signal strength. 2.Tx power high: indicate power level 3.Key lock: appears during key lock function is on. 4.Alart(beep) on/off: appears when beep sound is turned on. 5.Battery level indicator: indicates re...
Ep400 ver. 1.0 e-tech co., ltd 7/16 3. Contact list 1). To enter menu mode. 2) or to until 3) to select 4) or to scroll list 5) to exit 4. Status call list 4-1. Making status call 1) to enter menu mode. 2) or to until 3) to select 4) or to scroll list 5) push ptt key for sending message on the lcd. ...
Ep400 ver. 1.0 e-tech co., ltd 8/16 5. Lone work 1). To enter menu mode. 2) or to until 3) to select 4) or to select on/off 6. Tx power . 1). To enter menu mode. 2) or to until 3) to select 4) or to select high / low power 5) to select 7. Tx tone selecting transmitting tone(ctcss/dcs). 1). To enter ...
Ep400 ver. 1.0 e-tech co., ltd 9/16 8. Rx tone changing receiving tone(ctcss/dcs). 1). To enter menu mode. 2) or to until 3) to select 4) or to select tone either ctcss or dcs. 0= non tone 1-38 ctcss 101 – 183 dcs tone. 5) to select exit 9. Group changing group tone. 1). To enter menu mode. 2) or to...
Ep400 ver. 1.0 e-tech co., ltd 10/16 11. Key lock 1). To enter menu mode. 2) or to until 3) to select 4) or to select key lock /unlock. 5) to select 12. Squelch level 16 level is available. 0 = terminate sq function 1). To enter menu mode. 2) or to until 3) to select 4) or to the scroll list 5) to s...
Ep400 ver. 1.0 e-tech co., ltd 11/16 4) push ptt for exit 15. Dtmf 1). To enter menu mode. 2) or to until 3) to select 4) or to select on /off. 5) to select 16. Vox on/off 1). To enter menu mode. 2) or to until 3) to select 4) or to select on /off. 5) to select 17. Vox level 16 level is available.. ...
Ep400 ver. 1.0 e-tech co., ltd 12/16 18. Auto vox 1). To enter menu mode. 2) or to until 3) to select 4) or to select on /off. 5) to select 19. Priority scan 1). To enter menu mode. 2) or to until 3) to select 4) or to select on /off. 5) to select 20. Priority scan ch 1). To enter menu mode. 2) or t...
Ep400 ver. 1.0 e-tech co., ltd 13/16 21. Power save 1). To enter menu mode. 2) or to until 3) to select 4) or to select on /off. 5) to select 22. Talkaround 1). To enter menu mode. 2) or to until 3) to select 4) or to select on /off. 5) to select 23. Password 1). To enter menu mode. 2) or to until 3...
Ep400 ver. 1.0 e-tech co., ltd 14/16 24. Password ch 1). To enter menu mode. 2) or to until 3) to select 4) ---- will display on the lcd( enter old password) or by pushing up and down key to change password. By pushing enter key to change digit of password. 5) enter new password by 4 digit. 25. Loca...
Ep400 ver. 1.0 e-tech co., ltd 15/16 27. Status call send 1). To enter menu mode. 2) or to until 3) to select 4) or to select on /off. 5) to select.
