RFG-301 User’s Guide
Document Number
CUG RFG-301
Revision 1
Eaton’s Cooper Power Systems
540 Gaither Road, Suite 480
Rockville, MD 20850 USA
Tel (301) 515-7118
Fax: (301) 515-4965
1 About the RFG-301
The RFG-301 is a radio communications device designed for use in gas meters. The RFG-301 provides a 915 MHz radio interface to an RF mesh network.
The RFG-301 operates from two 3.6V lithium batteries, connected in parallel to provide 3.6V. The radio module operates in license-free bands at 915 MHz (902.75 to 927.25 MHz). RFG-301 Nodes are fully compatible with mesh network hardware, protocols and operations. Five radio transmission data rates are available: 9.6 kb/s, 19.2 kb/s, 38.4 kb/s, 76.8 kb/s and 153.6 kb/s. The transmission power of the 915 MHz radio is adjustable from 24 dBm to 5 dBm.
2 Regulatory Notices
2.1 Regulatory Notices
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help
The installer of this radio equipment must ensure that the antenna is located or pointed such that it does not emit RF field in excess of Health Canada limits for the general population; consult Safety Code 6, obtainable from Health Canada’s website www.hc-sc.gc.ca/rpb.
To comply with FCC RF exposure compliance requirements, the antenna used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operate in conjunction with any other antenna or transmitter.”
3 RFG-301 Specifications
| Radio Specifications | |
| Operating frequency | 902.75 – 927.25 MHz |
| Reliable data transmission | Error detection, correction and retransmission |
| RF output power | 24 dBm (maximum) to 5 dBm |
| Data rate | 9.6 kb/s, 19.2 kb/s, 38.4 kb/s, 76.8 kb/s, 153.6 kb/s |
| Receiver sensitivity | -114 dBm (@ 1.0% PER, 9.6 kb/s, +25° C |
| Range (w/ omni antenna) | Outdoor 500 m (1600 ft) Indoor 75 – 150 m (225 – 490 ft) |
| Mode | Frequency Hopping Spread Spectrum (FHSS) |
| Mechanical Specifications | |
| Weight | Unavailable |
| Dimensions | 105 mm x 50 mm |
| Operating Conditions | |
| Environmental | -40° C to +85° C 0 – 95% non-condensing humidity |
| Power supply | DC 3.6V |
| Power consumption | < 3W |
Eaton’s Cooper Power Systems
540 Gaither Road, Suite 480
Rockville, MD 20850 USA
Tel (301) 515-7118
Fax: (301) 515-4965
