The PIC-E multi-purpose program by N0QBH 1/2000 Here's something new to do with your PIC-E - The REG_DIGI.ASM. Actually, it's two new things. REG_DIGI.has two modes of operation, packet receive and digipeat which can be changed on the fly. The packet receive mode listens to the radio's squelched audio , decodes valid packets, then serially sends the orig / dest calls and up to 30 bytes of the info field out thru the GPS 9 pin D sub, pin #3. As a result a NULL MODEM cable/adaptor is required. My own tests showed that the 10k resistor in series with the data line to pin #2 wouldn't allow my terminal programs to copy the serial output. Terminal program settings are 4800,8,N,1 and it has been tested with Procomm and Hyperterm successfully via null modem. The digi mode turns the PIC-E into a relay for valid MIC-E track packets containing the valid GPS symbol. The intent is to make a portable APRS friendly repeater when used with a transceiver set to split freq operation. The rx freq is set to the repeater input and the tx freq is on the APRS freq. The stock PIC-E doesn't have the hardware to let the transmit portion sense for activity, so it doesn't have any hold-off. It will step on other transmissions. Assemble with MPASM and program the hex file RX_RLY12.HEX to your PIC-E with Picprgm included with the kit. When using Picprgm, only the HS and PWRTE settings should be on. To configure the PIC-E for the software, jumper #5 is set to pins 1 and 2 (RXD). Set jumper #2 to pins 1 and 2 (N setting). Jumper #1 is left open. Looking at the front, the mode toggle switch (SW 1) is the far left toggle. Flipped right is rx mode, to the left switches to digi mode. The valid LED is now flag detect (on after 2 flags rx'd). The power, busy and PTT lights work as usual. Have fun, tinker, tweak, etc... Mike N0QBH