FT290R (first version) Extensions ================================== The pins no 38,39,40,41 near HMCS45C are used for extensions. pin no band step FM/SSB shift 38 39 40 41 MHz KHz Hz ------------------------------------------------------------------- * * 140-150 25 1000 7.6MHz 100 100 ------------------------------------------------------------------- * * * 140-144 10 1000 1MHz 20 100 ------------------------------------------------------------------- * * * * 140-150 5 1000 no shift possible 10 100 ------------------------------------------------------------------- * * 144-146 12.5 1000 600KHz 25 100 (European version) ------------------------------------------------------------------- * * * 144-149 10 1000 600KHz 20 100 ------------------------------------------------------------------- * * 140-150 25 1000 5MHz 100 100 ------------------------------------------------------------------- * * 140-150 25 1000 5MHz 100 100 ------------------------------------------------------------------- * * * 144-148 5 1000 600KHz 10 100 ------------------------------------------------------------------- * * 144-148 5 1000 600KHz 10 100 ------------------------------------------------------------------- * 140-150 25 1000 1.6MHz 100 100 (FB for 70cm transverter) ------------------------------------------------------------------- * * 144-146 10 1000 600KHz 20 100 ------------------------------------------------------------------- * 144-148 12.5 1000 600KHz 25 100 ------------------------------------------------------------------- * * * 143.5-148.5 5 1000 600KHz 10 100 ------------------------------------------------------------------- Thanks to F1GAN for this info. Serge F1EMT @ FF6KDC (Downloaded from GB7SYP)