146 MHz RB-TV

UK radio amateurs with full licenses have been given access to an extension of the 2mts band between 146 and 147 MHz but only for experimental modes. This is done on a temporary basis and you will need to do an on-line application for a NoV to your current license using this link:

http://rsgb.org/main/operating/licensing-novs-visitors/online-nov-application/146mhz-147mhz-nov/

The RSGB band plan now includes (and encouraged) the use of Reduced Bandwith Digital ATV (RB-TV) using 500 KHz centered on 146.5 MHz. For more info on Reduced Bandwidth Digital television (RBTV) take a look at this RB-TV special edition of CQ-TV.

RB-TV equipment for 146 MHz

RB-TV on 146 MHz is not possible using "normal" DATV equipment and requires the use of equipment developed specially for the mode. For more technical details take a look at our getting started guide to RB-TV. Getting Started with RB-TV

Receive equipment

Due to the very low symbol rate, normal Set top boxes and satellite receivers will not receive RB-TV. The BATC minituner project was developed specifically to receive RB-TV - more details can be found on this wiki page.

Standard satellite tuners will not cover 146 MHz and you will need an upconverter from 146 MHz to L band - you can either home brew the upconverter or use one of the following:

Roberto Zech Elektronik DG0VE, upconverter, power amplifier, mixer/oscillator module, LNA etc. http://www.dg0ve.de/en/index.htm

DG8 144 - 147 MHz pre-amp with filtering - note the kits were available from G4HUP who suddenly became SK in Feb 2017 - we will update the page when a new source is found. http://www.ifwtech.co.uk/g3sek/vhfdx/dg8-preamp-v7.pdf