DTT transmitter

Michael Watterson's picture

Saorview Resource for Humans

New resource for Non-Technical folk (ordinary Humans) for Saorview and Saorsat (link)<, the new Irish Digital Terrestrial.

I think saortv.info is a nice easy address for your friends. Comment to this post to suggest additions or corrections to the site or use this form here (link)< if you are not a Member here. 

UPDATE: RTE / RTE NL now have two excellent resources. The Information Site Saorview<  and the Coverage Site<.

Michael Watterson's picture

NXP announce 120W RF average power (QAM) UHF transistor

Quote:
EINDHOVEN, THE NETHERLANDS  -- Sep 23, 2010 -- NXP Semiconductors N.V. (NASDAQ: NXPI) today announced the availability of an Ultra High Frequency (UHF) RF power transistor; the BLF888A, a 600W LDMOS device for broadcast transmitters and industrial applications. The BLF888A is the most powerful LDMOS broadcast transistor in the market to date.

For a DVB-T signal over the full UHF band from 470 to 860MHz, the transistor can deliver 120W average power with efficiencies greater than 31 percent. Featuring excellent linearity, high gain of 21dB and outstanding ruggedness corresponding to VSWR greater than 40:1, the BLF888A is ideal for advanced digital transmitter applications, such as DVB-T. The BLF888A will be showcased at the European Microwave Week, NXP Booth No. 194, from September 26 - October 1, 2010 in Paris.

Probably quite good as a 400W SSB transmitter on 430MHz .. 440MHz and possibly not bad at 1.2GHz