|
|
|
Full-function audio and signalling processor, with GPS data facility
9 October 2002, Telecoms, Datacoms, Wireless, IoT
The latest full-function half-duplex audio and signalling processor IC for FRS, PMR446, GMRS and MURS type radios, with added data facilities for global positioning by satellite (GPS), has been launched by CML Microcircuits.
The CMX882 is said to be the ultimate low power single-chip building block for both simple and complex handheld radios. The device is available in 28-pin SSOP and TSSOP packaging and operates from a single 2,7 V rail. Under the control of the host µC, all audio requirements are catered for: voiceband and sub-audio filtering, pre/de-emphasis, compression and expansion, audio routing and global level setting with single or two-point modulation available in the transmit path.
Enhanced CTCSS and DCS encoding and decoding is incorporated. It also facilitates GPS location data transport via a 1200/2400 b/s FFSK/MSK packet data modem incorporating interleaving, FEC, CRC and data scrambling functions.
XTCSS signalling provides more (99) and better squelch privacy codes with the added advantage of 'silent operation'; which means no annoying interference from other users. This signalling format employs both a sub-audio holding tone and in-band (XTC) signalling concurrently, which offers more than twice as many privacy codes as standard CTCSS operation; and completely eliminates interference caused by other traffic on the channel (quiet operation).
XTCSS is fully compatible with both conventional and enhanced CTCSS signalling operations and can implement 'All call' and 'All codes monitor' functions as well as controlling, over air system configuration such as companding, data mode and the future option of voice scrambling. For more information contact Avnet Kopp, 011 809 6100, sales@avnet.co.za, www.avnet.co.za |
|
|
|
| Share: |
 |
Via email client |
 |
 |
 |
 |
print |
|
|
|
|
|
Further reading:
- Free software for viewing S-parameters
28 August 2019, RFiber Solutions, Telecoms, Datacoms, Wireless, IoT
At this year’s International Microwave Symposium in Boston, Massachusetts,pSemi (formerly Peregrine Semiconductor), announced it is offering the industry free beta software for viewing
S-parameters. ...
- What are metamaterials and how do they relate to antennas?
28 August 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
Metamaterials are an increasingly researched topic, especially where it pertains to modern antenna structures. However, there is a lot of confusion about exactly what metamaterials are and how they are ...
- Li-Fi illuminates the way to higher data rates
28 August 2019, TRX Electronics, Telecoms, Datacoms, Wireless, IoT
Radio spectrum is a precious resource and it quickly gets filled up. It did not take long for users of Wi-Fi in urban areas to understand how interference from nearby routers would affect the communications ...
- Managing the IoT on an energy budget
28 August 2019, Altron Arrow, Telecoms, Datacoms, Wireless, IoT, DSP, Micros & Memory
Historically, users wanted MCUs because they could process data and solve problems faster than a human could. MCUs also help make products more convenient and consistent in behaviour. The microcontroller ...
- Accounting for PIM with distributed antenna installations
28 August 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
Passive intermodulation (PIM) distortion is the result of discontinuities, metal-to-metal contact, and material properties that lead to nonlinear characteristics of typically linear passive transmission ...
- FiRa Consortium seeks to revive UWB
28 August 2019, Telecoms, Datacoms, Wireless, IoT
A new consortium has been launched in an effort to resurrect UWB (Ultra-Wideband) technology, which gradually faded into obscurity following its initial release due mainly to its inability to compete ...
- Project kickstarts SA’s use of TV white spaces
28 August 2019, Telecoms, Datacoms, Wireless, IoT
The US Trade and Development Agency (USTDA) has awarded a grant to support a project to help improve Internet access to rural areas of South Africa.
The grant, which focuses on facilitating export opportunities ...
- iCorp Technologies launches its new IoT slogan
28 August 2019, iCorp Technologies, Telecoms, Datacoms, Wireless, IoT
create |connect |communicate, iCorp Technologies’ new slogan, was launched on 1 August 2019.
This comes as a very deliberate progression from the company’s previous slogan, ‘inspire| innovate | implement,’ ...
- Connectorised RF amplifier and filter modules
28 August 2019, RFiber Solutions, Telecoms, Datacoms, Wireless, IoT
Atlanta Micro has launched a new line of connectorised modules for some of its most popular parts. These modules are made of aluminium and offer RF shielding along with field-replaceable SMA connectors ...
- High-frequency RF couplers
28 August 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
Pasternack has launched a new series of high-frequency couplers that are ideal for 5G telecommunication, automotive radars, satellite communication, point-to-point radios and aerospace applications.
The ...
- GNSS boards for dead-reckoning
28 August 2019, Electrocomp, Telecoms, Datacoms, Wireless, IoT
The Locosys RTK-4671-SHDR/MHDR is a high-precision GNSS RTK (global navigation satellite system real-time kinematics) solution targeting the smart driving and lane-level navigation markets.
The newly ...
- Standalone multi-radio modules
28 August 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
The NINA-W10 series from u-blox comprises standalone multi-radio 2,4 GHz MCU (microcontroller) modules that support Wi-Fi 802.11b/g/n and Bluetooth v4.2 (Bluetooth BR/EDR and Bluetooth low energy) communications. ...
|
|
