Jumper function:
Jumper Function JP1 Switches between
WX/Tiny Track functionsJP2 primary/secondary
parameters from EEPROMJP3 connects a rezistor for
hand-held TRXs keying
Canon 9 connectors wiring is the same as uses TNC-5 modem
Eagle 4.03 (displayed bitmap may not give the accurate dimensions)
Part Value
C1 2u2
C2 100n
C3 100n
C4 100n
C5 100n
C6 15p
C7 15p
D1 LED3MMYELLOW
D2 LED3MMGREEN
D3 LED3MMGREEN
D4 LED3MMRED
D5 LED3MM GREEN
IC1 PIC16F828/20P
IC2 78L05
JP1 jumper
JP2 jumper
JP3 jumper
Q1 crystal 10MHz
R1 8k2
R2 3k9
R3 2k2
R4 1k0
R5 220k
R6 10k
R7 10k
R8 2k2
R9 10k
R10 1k0
R11 1k0
R12 1k0
R13 1k0
R14 330
R15 10k
R16 10k
R17 330
R18 2K2
R19 10K
R20 25k
R21 2K2
T1 BC547
T2 BC547
T3 BD440
X1 W237-02P (screw connector 2pin/5mm)
X3 W237-03P (screw connector 3pin/5mm)
X4 M09H (Canon 9 male to PCB)
X4 F09H (Canon 9 female to PCB)
UniTrack (from version 0.5) provides:
1. transmit (as AX.25 WX APRS frame) of the data from PIC WX full weather station, without need of any external modem.
2. transmit decoded GPS/NMEA183 position data (as AX.25 MIC-E APRS frame). This function is the same as TiniTrak I offers. (Only coordinates, direction and speed.) It can use two parametters sets stored in EEPROM. It does not implements "smart beaconing" feature.
Please read UNITR007en.zip which gives You much more information about this module. Basic functions are set by jumpers, other values are stored in processor's EEPROM and You are able to change them from Your PC.
When powered up (after succesfull initialization) You should see 3 flashes of Yellow (DCD) and green (GPS) LEDs and one beacon is transmitted. If this does not occur processor does not working properly and You should check if processor is programmed right and EEPROM contains valid data.
For download EEPROM contents and upload back into processor's EEPROM use of Piceerw program is recomended (for Windows platform). full installation 1.4MB;
exe only, needs ocx libraries (36kB)).
Or (the old good MS-DOS) program PIC_EEE originaly written by OK1FMF for HP200LX. But it works under Windows too.
UniTrack has to be in WX mode to communicate with this configuration software. Only in this mode UniTrack communicates using 9k6, 8N1. (In Tiny more - GPS tracking UniTrack communicates using 4k8, 8N1)
There is a program UNITRFCF for maintenance of the file containing UniTrack configuration (processor's EEPROM).
UNITRFCF (the link on the left) is in only in English version.