Questions about original 8 channel receiver

[XPS]

1. The Nano is just slightly better.

2. 2.5v to 16v

3. See below.

4. No.


8/10 Channel firmware history
;----------------------------------------------------------------------
;
; v3.1 - 11/06/08
;
; Changed boot error to show alternately red/orange flashing when
; receiver is powered up and a RF module failure has occurred.
;
; Fixed problem when using a transmitter with 12 or more channels
; saving failsafe positions.
;
;----------------------------------------------------------------------
;
; v3.2 - 11/20/08
;
; Fixed issue when using PPM24 mode with ATVs set at 150%
;
; Improved re-sync of lost packets with short frames.
;
;----------------------------------------------------------------------
;
; v3.3 - 01/01/09
;
; Removed virtual satellite receiver used for testing.
;
; Removed requirement of having a sensor plugged in to get
; signal strength and battery voltage.
;
;----------------------------------------------------------------------
;
; v3.4 - 03/26/09
;
; Fixed issue with push button programming not allowing the Failsafe
; of PPM OFF.
;
; Added 2 second delay after system connects before battery voltage is
; checked. This allows systems with huge servos that need massive
; power at startup a chance to power up without tripping the low
; voltage warning.
;
;----------------------------------------------------------------------
;
; v3.5 - 06/06/09
;
; Disabled telemetry output when in system is in a failsafe condition.
; The transmission time is better spent re-syncing the frequency
; hopping.
;
;----------------------------------------------------------------------
;
; v3.6 - 08/12/09
;
; Added support for 12 channel simultaneous outputs. This allows you
; to use a 12 channel transmitter with multiple receivers and use
; (via channel mapping) all 12 channel outputs. Failsafe works with
; new XDP program to setup failsafes for channels 11 and 12. Note
; that the servo output range is now limited, 850us to 2250us, 100us
; shorter than the previous versions. In testing, the lowest pulse
; we encountered was Multiplex EVO at 850us to 1950us. JR and Futaba
; are both 900us or more, even with 150% throws.
;
; Re-wrote frequency hopping code for receiver. Synchronization has
; been dramatically improved, giving the overall range a two fold
; increase.
;
;----------------------------------------------------------------------
;
; v3.7 - 10/21/09
;
; Cleared FIFO on startup to prevent possible firmware mismatch warning.
;
; Added support for changing the telemetry transmission ID so that telemetry
; data can be sent back to the transmitter module directly instead of just
; to the telemetry station. The 3rd programming mode (solid orange) is
; now used to set the "telemetry output mode". Possible options:
;
; 1 flash = Data sent to PC
; 2 flashes = Data sent to transmitter (as well as PC)
; 3 flashes = turn off telemetry output
;
; WARNING!! DO NOT send data to the transmitter if the transmitter firmware
; is less than v3.6!
;
;----------------------------------------------------------------------
;
; v3.8 - 04/15/10
;
; Added support for failsafe packet for Graupner telemetry radios.
;
; Added reboot notification. LED now flashes orange if power is lost
; and restored.
;
;----------------------------------------------------------------------
;
; v3.9 - 10/17/11
;
; Fixed issue with RESET routine not resetting channel 16 in the channel
; map.
;
; Streamlined failsafe capture code.
;
; Fixed PWM OFF failsafe. Previously, all channels after a channel set
; for a failsafe of PWM off would be skewed by 66us.