http://www.frequencydb.com/content FrequencyDB.com - Ireland's Radio Hobby Portal Tue, 26 Aug 2008 20:27:20 +0000 http://backend.userland.com/rss092 en A baby monitor is essentially a radio transmitter on a fixed frequency that transmits a FM signal. Baby monitors transmit in the 48-50 MHz range. Common baby monitor channels: 49.300 49.830 49.845 49.862.50 49.845 http://www.frequencydb.com/content/2008/05/can-anyone-hear-my-baby-monitor/ PMR446 is a European standard licence-free radio service utilising 8 (12.5khz spaced) channels in the 446 Mhz band. PMR is license exempt in Ireland and other EU states. The first country which introduced these frequencies for licence-free use was Ireland and it did so on 1st April 1998. The United ... http://www.frequencydb.com/content/2008/05/pmr-public-mobile-radio-in-ireland/ Exemptions from licensing are normally established when there is no requirement to manage the specific spectrum band and where the risk of harmful interference is negligible. The following is a non-exhaustive list of license exemptions. Exemptions ... http://www.frequencydb.com/content/2008/05/radio-license-exemptions-in-ireland/ When I began researching what scanner to buy about 18 months ago, one thing became clear - don't expect a handheld scanner to compete across the frequency range with a desktop scanner. My main interest then and now was shortwave as well as a smattering of airband and up. But I ... http://www.frequencydb.com/content/2008/04/in-defence-of-the-humble-handheld-scanner/ AIS (Automatic Identification System) is system that continuously transmits a ship's identification and position to other nearby vessels. All such vessels also receive data from other AIS equipped ships and display their positions and other relevant information on a display on the bridge. In other words, AIS is a navigation ... http://www.frequencydb.com/content/2008/04/ship-plotting-in-ireland/