Laurence Marchini, Editor, writes:
We see from your search that you're looking for information on the term "VHF", and we have a large number of manufacturers' news releases and technical articles here on Electronicstalk which will be of interest. Let me be your guide.
Start with the news release Broadband amp covers UHF and VHF from Link Microtek, which we summarised at the time by saying "Module has an operating frequency range of 20 to 520MHz and achieves an output of 100W with low distortion, Class AB linearity and wide dynamic range". A few weeks before, we featured the news release Digital transmitter converts VHF waveforms from GE Fanuc Embedded Systems: "Module includes two transformer-coupled analogue outputs with 16bit resolution and supports sampling frequencies up to 200MHz in single datarate mode".
In November 2007, we covered the news from GE Fanuc Embedded Systems concerning its ICS-8551 - take a look at Mezzanine makes light of software defined radio which says: "ADC PMC/XMC module offers both two- and four-channel operation for software defined radio applications such as spectrum monitoring, signal intelligence, tactical communications and radar".
Take a look also at the news release from Fractus, Antenna eases handset TV integration, as well as RF test platform handles 6GHz from Aeroflex, and Digital radio test set supports P25 trunking from Aeroflex.
See also:
Analysers master cable and antenna installation (June 2007)
Cable and antenna analysers combine a wide frequency range, ease of use and high accuracy in an extremely portable, rugged design
OCXO maintains performance in design shrink (June 2007)
Oven-controlled crystal oscillator provides superior phase noise performance over a wide range of frequencies in a small 1in-square package
Tuners consolidate digital radio and TV reception (May 2007)
RF tuner ICs receive digital audio broadcast (DAB) and terrestrial digital multimedia broadcast (T-DMB) with a minimum of external components
Transceivers work in both UHF and VHF ranges (May 2007)
The NL5000 family of transceivers provide increased throughput
Analysers help guide pilots (April 2007)
Rohde and Schwarz developed the R and S EVS300 for checking and maintaining landing systems and omnidirectional radio
Software standardises multiple radio tests (April 2007)
Software increases speed, consistency and accuracy of testing P25 and FM radios while providing the ability to store, print and share test results
Compact antenna covers immunity test standards (March 2007)
High performance dipole antenna for immunity measurements is optimised for broadband efficiency to support tests in the VHF range
Flash-based FPGAs aid maritime safety (February 2007)
Software Radio Technology uses Flash-based ProASIC3 FPGAs in its Class B Automatic Identification System Unit for marine vessels
Mobile TV technology for handsets and USB sticks (January 2007)
LG will deploy the Mobile MicroTuner MT2260 multiband tuner, in a second-generation mobile TV phone that is targeted for a European DVB-H-based mobile TV commercial rollout
RF flip-chip tuners for Japan (December 2006)
Maxim Integrated Products introduces the MAX2161 and MAX2162 dual-band, dual-mode tuners for Japanese digital broadcasts
Polyband tuner overcomes regional differences (November 2006)
Breakthrough technology enables OEMs to design a single platform for mobile TV and radio, independent of standards or regional differences
Internal antennas help shrink handheld TV (October 2006)
Fractus has launched a suite of DVB-H internal antenna solutions for all three mobile TV frequencies: VHF (200MHz), UHF (600MHz) and L-band (1.4GHz)
Mixer chip covers a broad band (September 2006)
High performance mixer features low power consumption and the capability of operating from low frequency up to 4GHz
Project 25 radio tester produces more data (September 2006)
Aeroflex has announced the availability of a new version of software for the 2975 Project 25 radio test set
Multilayer chips have high Q factors (August 2006)
Designed specifically for high performance and high reliability applications, Murata has introduced the Hi-Q MLC range of multilayer chip capacitors
NCT licenses voice technologies to Trilogy (July 2006)
Cambridge technology company NCT has licensed its voice technology products to Trilogy Communications, a world class supplier of audio communications and infrastructure equipment
Testers and transmitters set for Amsterdam show (July 2006)
At this year's International Broadcasting Convention in Amsterdam from 8th to 12th September, Rohde and Schwarz will showcase its innovations in Hall 8, Booth 250, and in the IBC's mobile zone
Lightweight GPS module expands animal research (July 2006)
A technology partnership will soon make it possible for scientists to study the behaviour of endangered species once thought too tiny to be tracked by GPS
Polyband tuner chip has global application (July 2006)
A new UK-based RF and mixed signal fabless semiconductor company has developed the world's first polyband tuner for mobile digital broadcast reception
High-end signal generator runs up to 6GHz (July 2006)
Rohde and Schwarz has expanded the frequency range of its SMA100A analogue high-end signal generator
Modules embed information and networks on the move (June 2006)
The Duracort 1100 vehicle logic unit (VLU) is designed for information-level applications aboard road and rail transit vehicles
Portable TV tuner handles terrestrial and mobile (April 2006)
A new dual-standard dual-band tuner chip receives and tunes both digital terrestrial TV and mobile broadcast TV signals for portable applications
Mobile TV in the spotlight at CeBIT (March 2006)
At CeBIT, Frontier is showcasing its Apollo RF device that is one of the enabling technologies of mobile TV in Germany
Direct to disk recorder logs re-entry data (March 2006)
StreamStor is an integral part of the data acquisition system on the Arianespace Ariane 5
FM transmitter family covers TV and radio (January 2006)
The R and S NR8200 family of VHF FM transmitters are based on a common platform for TV and sound broadcast transmitters, covering a power range from 2.5 to 30kW
Lithium cells set for man-pack radio duties (September 2005)
Ultralife Batteries has received an order valued at approximately $900,000 for its HiRate D-size lithium cells from a German battery assembler for man-pack radio batteries
Compact design for UHF and VHF modems (September 2005)
ME-D200 and ME-D205 UHF and VHF modems have a small and compact design that offers great flexibility and varied applications where wireless data or voice communication is needed
New name in radiocommunications (September 2005)
Launched at the Mobitex Association Conference in New York, Mobile Expertise is a new UK company formed out of the sale of the Maxon radio business last December
C-based design offers compelling benefits (June 2005)
Tadiran Communication has adopted the Celoxica DK Design Suite of C-based design and synthesis tools to accelerate its next generation of product design
FSK receiver is a sensitive sort (May 2005)
The MAX7042 is billed as the world's highest sensitivity VHF/UHF PLL-based FSK receiver
Narrowband transceivers boast longer ranges (May 2005)
The new SMX series transceivers from Radiometrix are compact (53 x 32 x 12mm) multichannel narrowband radios intended for a wide range of industrial wireless datalink applications
Transceivers take VCO and PLL parts on chip (April 2005)
A new family of crystal-referenced VHF/UHF transceivers delivers more than +10dBm output power and -114 or -110dBm sensitivity
Radio test set extends to PassPort systems (February 2005)
Aeroflex now delivers PassPort testing through its IFR 2975 radio test set and Release 1.9.1 software, becoming the first company to support complete testing of PassPort radio systems
Design offers speedy route to LCD TV market (November 2004)
iKonvergenz has launched a 20in integrated digital TV reference design based on its Polaris chassis for manufacturers looking to enter the growing LCD TV market