Discussion in "Component Price and Availability" started by    Ûž TPS Ûž    Dec 21, 2007.
Fri Dec 21 2007, 03:48 pm
#1
This Wireless Module is a low power, highly integrated FSK/GFSK/ASK/OOK/GOOK transceiver designed for operation in the ISM frequency bands. The module also supports Frequency Hopping Systems. It is based on the analog device ADF7020-1, which uses an external VCO (expansion) inductor that allows users to set the operating frequency anywhere between 432 MHz and 438 MHz without any hardware changes.

Wide range of data rates and deviation frequencies are supported by the RDM-AGFSK43X wireless module which makes it the unique choice for many applications which require low cost and high performance. The typical range of distance covered by the RDM-AGFSK43X module is in excess of 500 meters line of sight. The module is capable of supplying CLOCK to the microcontroller, thus making a complete wireless system. By using a single low cost external microcontroller, RDM-AGFSK43X could be indispensable for price-sensitive and area-sensitive applications.

Applications

* Low cost wireless data transfer
* Wireless medical applications
* Remote control/security systems
* Wireless metering systems
* Keyless entry
* Home automation
* Process and building control
* Automotive systems
* Wireless Remotes for home and industrial use
Features

* Low power, low IF RF transceiver modules
* Frequency bands
432 MHz to 438 MHz, direct output
* Data rates supported
0.15 Kbps to 200 kbps, FSK/GFSK receive and 0.15 kbps to 38.4 kbps transmit
(Transmit Data rate can be altered to up to 200Kbps on request)
0.15 kbps to 64 kbps, ASK/OOK/GOOK receive and 0.15 kbps to 9.6 kbps transmit
* Programmable output power for transmit
-20 dBm to +13 dBm in 63 steps
* Receiver sensitivity
-119 dBm at 1 kbps, FSK
-114 dBm at 9.6 kbps, FSK
-111.8 dBm at 9.6 kbps, ASK
* Low power consumption
2.3 V to 3.6 V power supply
17.6 mA in receive mode
21 mA in transmit mode (10 dBm output)
* On-chip 7-bit ADC and temperature sensor and Battery voltage monitor
* Fully automatic frequency control loop (AFC) compensates for frequency errors
* Digital RSSI
* Leakage current <1 µA in power-down mode



[ Edited Fri Dec 21 2007, 06:09 pm ]
Tue Dec 25 2007, 07:59 pm
#2
What about cost ?
Have you interfaced it with serial port of am MCU and tested it ?
Wed Dec 26 2007, 12:08 am
#3
Rs 900 works far best then any other ask tx r modules its stable AND LONG RANGE
Mon Oct 20 2008, 11:10 pm
#4
hiii...i need help on RDM-A4FZ with microcontroller atmega16 i need code plz contact me on my email id [email protected].
Fri Jul 30 2010, 05:48 pm
#5
i am using RDMA4FZ module with PIC16F690. i am controlling some relays with my system. in receiver section i have used

7812 to drive a 12v relay (which is placed on the same board with the controller & RF module). i have also used 7805

alongwith 3 nos. BA159 diodes (5v-3x0.6v=3.2v) for the supply of PIC16F690 controller & RDMA4FZ RF module (i.e.,3.2v). the

system function well with pure dc supply (12v battery). but whenever the supply is 230v ac the system does not work well.

sometimes it stucks with output relay latched in on condition (even if there is no load at the output). i have used a

transformer with 230v primary, 12-0-12v secondary output & with a full wave rectifier & capacitor based filter. can anybody

suggest a solution?
Fri Jul 30 2010, 07:48 pm
#6
you need to work more with power supply filtration

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