TR-916-SC-PA Linx Technologies Inc, TR-916-SC-PA Datasheet - Page 12

• Manufacturer Part Number: TR-916-SC-PA
• Description: TRANSCEIVER RF 916MHZ 1/2-DUPLEX
• Manufacturer: Linx Technologies Inc
• Series: SCr

Specifications of TR-916-SC-PA

• Frequency: 916MHz
• Data Rate - Maximum: 33.6kbps
• Modulation Or Protocol: FM, FSK
• Applications: ISM, Garage Door Opener, Remote Controls, 2-way RKE
• Power - Output: -10dBm
• Sensitivity: -94dBm
• Voltage - Supply: 2.7 V ~ 13 V
• Current - Receiving: 15mA
• Current - Transmitting: 19mA
• Data Interface: PCB, Through Hole
• Antenna Connector: RP-SMA
• Operating Temperature: 0°C ~ 70°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Memory Size: -
• Other names: TR-900-SC-PA; TR-900-SC-PA

ANTENNA CONSIDERATIONS
The following general rules should help in maximizing antenna performance:
Page 12
The SC-PA transceivers feature a unique RP-SMA
antenna connector. This connector is designed to
allow the convenience and flexibility of a detachable
antenna while maintaining compliance with FCC
guidelines.
Linx and other manufacturers sell a variety of
antenna styles and connectors designed to mate
with the module’s RP-SMA connection. It is
important to note, however, that the module must
be used with the appropriate Linx antennas in order
to retain its pre-approved status. Other antennas
may be used; however, recertification would be
necessary prior to offering the product for sale.
The antennas pictured below illustrate styles that
would be commonly employed. Please contact Linx
or visit www.linxtechnologies.com for the most
current information on compliant antenna styles.
1.
2.
3.
4.
Figure 9: Compatible Linx Antenna Styles
Proximity to objects such as a user’s hand or body, or metal objects will
cause an antenna to detune. For this reason the antenna shaft and tip
should be positioned as far away from such objects as possible.
Keep the antenna away from other metal components, particularly large
items like transformers, batteries, and PCB tracks and ground-planes. The
space around the antenna can be as important as the antenna itself.
The ground-plane acts as a counterpoise, forming, in essence, a 1/2-wave
dipole. For this reason adequate ground-plane area is essential. As a
general rule the ground-plane to be used as counterpoise should have a
surface area
Remove the antenna as far as possible from potential interference sources.
Any frequency of sufficient amplitude to enter the receiver’s front end will
reduce system range, cause increased bit errors, and can even prevent
reception entirely. There are many possible sources of internally generated
interference. Switching power supplies, oscillators, even relays can also be
significant sources of potential interference.
CW
RH
the overall length of the 1/4-wave radiating element.
RCS
RCL
Figure 10: Mounting Options
yy y
Clamps into
molded case
yy
yy
yy
yy
Flange hides
Use of nut
Clamps into
molded case
optional
hole
y
Plastic/Metal
Case
Serves as
rear flange