Receiver-Tranceiver Signal

Receiver-Tranceiver Signal

 

Diagram Handphone

Part of Signal Receiver (RX) 
Part or component in mobile phone consists of several component is:
1. Antenna
2. Switch antenna
3. Filter rx (filters)
4. Transistor (lasing rx)
5. IC RF
6. VCO
7. IC Power Supply
to detect that work or not in part rx (receiver), knowable by see from mobile phone in network setting selection, then choose menu manual in network choice.

Procedure every component part:
1. Signal received by antenna then to switch antenna as terminal
2. Switch antenna will take two signals RF for handphone dual band), that is DCS-RX (1800mhz) and GSM-rx (900mhz), second signal sustained to filter as RX signal, signal rx be filtered and sustained to transistor.
3. In second transistor, rx signal be braced to can sustained to filter as RX signal RX signal to filtered and divide signal is 4 parts, that is take outside two signals DCS-RX and two signals GSM-RX that sustained to IC RF
4. IC RF/IF mixing RX signal and appropriated with frequency from VCO

Part of Signal Tranceiver (TX) 
Component in handphone (mobile phone) have fuction to tranceiver signal consists of several components, this component is :
1. Antenna
2. Switch antenna
3. Filter rx (filters)
4. IC PA
5. IC RF
6. VCO
7. IC Power Supply
for detection that works or not part on TX (Tranceiver), can be used lamp radiation/ multitester.
1. Switch on handphone by using sim card
2.Do calling to 112 (emergency number)
3. Put radiation lamp / multitester at elbow antenna part
4. To multitester put to calibrate in 10V AC
5. When does lamp alive/ needle multitester move, mean TX work.

procedure every part:
1. Output VCO will be processed by ic RF, output ic RF is four signals, that is two signals DCS-TX and two GSM-TX then be follow up to filter part TX (Tranceiver)
2. VCO also functioned as power detector to regulate pulse voltage from RF IC in data delivery to CPU.
3. in filter fourth signal output at send by RF IC at form is two signals TX, that is DCS and gsm to contiuned to PA IC
4. in PA IC second signal braced for Tranceived then sustained to TX filter.
5. in signal second filter is filtered and sustained to part switch antenna
6. switch antenna that functioned as terminal and bundle second signal DCS andGSM to radiated to pass antenna

Part Stripe Scheme Signal (Rx/Tx) 
1. as a whole signal part in handphone is helped by Audio IC as voice signal beginning amplifier that comes from Receive part (RX) to continued in loud speaker and voice signal beginning amplifier that comes from microphone to continued Tranceiver (tx) passes RF IC.
2. crystal 26 mhz functioned as signal generator to controls out signal in RF IC at send to audio ic in part AFC (Automatic Frequency Control) also as voltage regulator as according to related components need that controlled by CPU