On 21/06/2011 13:43, RussellMc wrote: > It was interesting to monitor the local then-analog telephone cell > site (900 MHz ish) with the analyser. Motorway nearby. A channel would My local basestation (about 900m to 1km away) GSM900 and 3G2100 are=20 massive signals. About 20dB more than the TV signals. Total lack of GSM1800 You don't want to have too high a gain Mast amp and poor filters. Tetra=20 is now on too for Garda. 430MHz to 440MHz Amateur with no EIRP limit, though there is a PA power=20 out limit. 433MHz SRD 446MHz PMR (like FRS except different) 460ish MHz Tetra (Secured Public Services) 470MHz to 862MHz TV (lowest ch I get is 39 and highest is 68, after 2012=20 highest will be 59) 868 SRD (walkie talkies, barcode scanners, headphones) 872 - 876 Flash-OFDM Mobile Data 876- 880 GSM-R 880 - 960 GSM (inc downlink of F-OFDM 921, GSM-R 926 etc) 1200 - 1300 Amateur 1800 GSM (under used) 1900 DECT (Cordless phones) 2100 3G 2300 - 2400 Amateur 2400 Blutooth, WiFi etc. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .