to the NQSMHS V1.1x series, the V2 board shares
all the same facilities. The only changes are mechanical/cosmetic and
with a few circuit flaws repaired.
DUTCH*Star HSA firmware compatible
"Satoshi" firmware V4.xx and V5.xx compatible
TTL serial port (for slow speed data)
S:N/RSSI (when used with relevant firmware/software)
USB firmware boot loader (when used with relevant firmware)
PICKit2 ICSP header
NQSMHS-V2 is available in kit format. Lead time is usually 1 week but
may change due to parts availability.
Unlike the 1.1x series of
boards firmware is now provided Your board comes supplied with
the DUTCH*Star PICBoot bootloader pre-installed. This will enable you
install the DUTCH*Star HSA firmware available from http://www.dutch-star.eu when coupled with the supplied
firmware licence key.
REV V2 Nothing to report. All works as
planned (when did that ever happen?!)
Please refer to the DUTCH*Star documentation for instructions on
installing the firmware and drivers.
DIP switch settings are as follows;
Left = USB powered Right = external 12V powered
installed = force bootloader mode
installed = RSSI enabled
Left = RSSI enabled Right = RSSI
Board layout, schematic
and parts list can be found here.
Some users report very low transmit data levels emitting from the
board. A quick fix for this is to cut the right leg of the TX pot.
Some users have reported that the PTT remains keyed long after the data
has gone. This appears to be RF feedback holding the PTT transitor
open. Place a 100pF (101) cap between the base of Q2 ground.