Q2406A
| Model | Q2406A |
| Description | SELF CONTAINED E GSM/GPRS 900/1800 OR 850/1900 BI BAND MODULE |
| PDF file | Total 81 pages (File size: 909K) |
| Chip Manufacturer | ETC |
WM_PRJ_Q2400_PTS_002 - 002
24th January 2003
2.20
RF interface
The impedance is 50 Ohms nominal and the DC impedance is 0 Ohm.
2.20.1 RF connections
Spring contact
Two land patterns set on the PCB support the RF connection which can
be used by the application through spring contacts or a soldered RF cable.
Since no standard spring contact is available for WISMO Quik Q24x6
Series, this solution requires a specific part to be developed.
Soldered solution
The soldered solution will preferably be based on a RG178 coaxial cable.
Notes :
•
The WISMO Quik Q24x6 Series does not support an antenna switch for
a car kit but this function can be implemented externally and it can be
driven using a GPIO.
The antenna cable and connector should be chosen in order to minimise
losses in the frequency bands used for GSM 850/900MHz and
1800/1900MHz.
0.5dB can be considered as a maximum value for loss between the
module and an external connector.
•
•
2.20.2 RF performances
RF performances are compliant with the ETSI recommendation
GSM
05.05.
The main parameters for Receiver are :
•
•
•
•
•
•
•
•
GSM850 Reference Sensitivity (Q2426) = -104 dBm Static & TUHigh
E-GSM900 Reference Sensitivity (Q2406)= -104 dBm Static & TUHigh
DCS1800 Reference Sensitivity (Q2406)= -102 dBm Static & TUHigh
PCS1900 Reference Sensitivity (Q2426)= -102 dBm Static & TUHigh
Selectivity @ 200 kHz : > +9 dBc
Selectivity @ 400 kHz : > +41 dBc
Linear dynamic range : 63 dB
Co-channel rejection : >= 9 dBc
And for Transmitter :
•
•
•
•
Maximum output power (EGSM & GSM850): 33 dBm +/- 2 dB at ambient
temperature
Maximum output power (GSM1800 & PCS1900) : 30 dBm +/- 2 dB at
ambient temperature
Minimum output power (EGSM & GSM850) : 5 dBm +/- 5 dB at ambient
temperature
Minimum output power (GSM1800 & PCS1900) : 0 dBm +/- 5 dB at
ambient temperature
Page :
48 / 81
confidential ©
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged
without prior written agreement.
Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à
des tiers sans son autorisation préalable.
