Well Sam, it's a long story...... The shorter version is I had trouble commanding the XCAT. After lots of messing about I found that if I connected to the XCAT with a Wndoze machine set the config, and played with it for a while, the first time I tried with app_rpt it worked. But not afterward..... So I made up a little set config function into app_rpt.c and called it when commanding the XCAT. Yep, it's a patch to gloss over something else. But it got it working. Nothing earth shattering. But I've had it working and on the air for a year or two now. Here's the set_config_xcat function: static int set_config_xcat(struct rpt *myrpt) { unsigned char cmdstr[10]; /*set the fixed XCAT Config */ cmdstr[0] = cmdstr[1] = 0xfe; cmdstr[2] = myrpt->p.civaddr; cmdstr[3] = 0xe0; cmdstr[4] = 0xaa; /* Set config command */ cmdstr[5] = 0x04; /* Sub command */ cmdstr[6] = 0x03; /* 440 Band - use for 2m and don't send COS*/ cmdstr[7] = 0x00; /* No user bits set */ cmdstr[8] = 0xfd; return(civ_cmd(myrpt,cmdstr,9)); } And put a call to the new function into set_xcat : static int set_xcat(struct rpt *myrpt) { int res = 0; /* Set XCAT Fixed config */ if(debug) printf("Setting XCAT Config\n"); if (!res) res = set_config_xcat(myrpt); /* select XCAT Mode/Channel 1 */ if(debug) printf("Setting XCAT to Mode 1\n"); if (!res) res = simple_command_xcat(myrpt,8,1); /* set Freq */ if(debug) printf("Frequency\n"); if(res) res = set_freq_xcat(myrpt, myrpt->freq); if(debug) printf("Offset\n"); if(!res) res = set_offset_xcat(myrpt, myrpt->offset); /* Offset */ if(debug) printf("CTCSS\n"); if (!res) res = set_ctcss_freq_xcat(myrpt, myrpt->txplon ? myrpt->txpl : "0.0", myrpt->rxplon ? myrpt->rxpl : "0.0"); /* Tx/Rx CTCSS */ /* set Freq */ if(debug) printf("Frequency\n"); if(!res) res = set_freq_xcat(myrpt, myrpt->freq); return res; } To make things simpler for users, what I've done on the other nodes here in York County is add macros in each of their rpt.conf to command the agile base. Example : 201=*428260*5201 ;Select Channel 01 on 2m remote base 202=*428260*5202 ;Select Channel 02 on 2m remote base 203=*428260*5203 ;Select Channel 03 on 2m remote base And for quicker access to certain channels, some macros where function code is the KHz of the frequency. For example below, dialing *53520 on one of the other nodes, will connect to the agile base, and select the channel for 146.520. 3330 = *8401*328260*428260*5242# ;Disc all & connect to 2m Base, change to 147.330 3520 = *8401*328260*428260*5217# ;Disc all & connect to 2m Base, change to 146.520 3550 = *8401*328260*428260*5219# ;Disc all & connect to 2m Base, change to 146.550 3580 = *8401*328260*428260*5221# ;Disc all & connect to 2m Base, change to 146.580 3700 = *8401*328260*428260*5243# ;Disc all & connect to 2m Base, change to 146.700 Something that I've been playing with lately using the agile base is to have a hub node with "archivedir=" set connect to the base every morning at 7AM. Tune to marine channel 22 and record the daily Coast Guard Safety and Weather broadcast from Baltimore. Disconnect at 8 AM, put it into a tarball and shove that out to a convenient FTP server where I can grab it later in the day if I want to. I don't quite have everything working there yet.