From inside (document excerpt):
Lih the bottom tab and lih the battery-case cover. Insert three AA drycells or NiCd battery cells here; close, and lock with the bottom tab. · FEATURES Rotate. stand up and extend fully when operating Telescopic Antenna External Power Terminal I · UHF FM MINI POWER TRANSCEIVER AI.’NCO +–+ -., Attach the supplied handstrap Do not connect any power supply when dry cells are installed in the radio.
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If NiCd balleries are installed. charging can be done through this terminal using the EOH-18, EDC- 79 charger, or an external regulated 5.5V DC (negative ground). (Do oot use any other types of charger orelse theJ radio will be damaged and warranty will be void.) EC10 · SPECIFICATIONS: · Frequency range/433.0625-434.7750MHz · Modulation/F3E · DC power source/3.6-4.5V (internal battery), 5.5V (external regulated source) · Current TX/approx. 30mA@4.5V DC, RX/ approx. 33mA (squelched) · Dimensions /55(W) x 1OO(H) x 28(D)mm without projections· Weight/approx. 185g (with three AA drycells) < Tranamltter> · Output Power/approx. 10mW@4.5VDC · ModulatorlVariable reactance· Max. deviation/ ±5kHz Configuration/Double conversion superheterodyne .1.F./1st: 23,05MHz/2nd; 450kHz· Sensitivity/better than -15dBI’ (12dB SINAD). AF output/not less than 100mW (10% distort. @811) External Microphone Jack I Be careful not to touch with metals/conductives. Connecl 10 this jack when using an optional microphone (e.g. EMS-9. EME-12. etc) External Speaker Jack I · DISPLAY ® @ “M ” IS displayed continuously on a programmed memory channel. The “M ” !lashes on a memory channel nOI yet programmed. Connect to this jaCk when using an optional speaker (e.g. EMS-9. EME-12. etc.) PTTI Press-tcHalk switch. ® Memory channel number. Frequency (aM other parameters when programming functions) 8-meterlRF outpul power meter Auto Power Otl enabled MONITOR I Press this switch to unmute Ihe preset squelch and monitor weak signals. Press and hold the F-key and press Ihis key to lock/unlock the ke ….. …