I should know better then to use dial frequencies. My QRG is currently 10.127 Mhz > SCS PTC users - 10.127 LSB Obviously not the correct dial frequency. > DXP38 users - 10.129.1 LSB For DXP38 modems using the default 2125 mark tone, the dial frequency is more like 10.129.13 LSB. Sorry for the confusion. Maiko