Center button mode cycling:

- Channel mode/UART control (default) - blinking left arrow
- Scan mode - label "SCAN..." and blinking star symbol, if
    squelch is open - blinking exclamation symbol and channel name label
- Manual frequency mode - 10 kHz step, label "MANUAL" instead of channel name

Up/Down buttons work in all circumstances.

Channel	Frequency	Label	Info/Status
1	137.200	CH-1	-
2	137.100	NOAA-19	Working, possible interference with Meteor M N1
3	137.400	OKE/SIC	OKEAN-0/SICH M-1 sporadic
4	137.500	NOAA-17	Off (stalled scan motor), sporadic carrier from Tiros-N, NOAA-6 and NOAA-9
5	137.620	NOAA-15	Working
6	137.910	NOAA-18	Working
7	137.300	CH-7	-
8	137.700	NOAA-RT	NOAA beacons
9	137.800	CH-9	-
10	137.850	CH-10	-
11	134.000	DCONV-1	1.6 GHz downconverter
12	141.200	DCONV-2	1.6 GHz downconverter

The converter channels are not scanned in scan mode and can not be selected by RS-232 remote control.

Changelog:

Version	Date	Change
1.5	31. March 2012	- labels corrected and updated
1.4	18. December 2010	- added Meteor and Resurs labels
1.3	11. August 2010	- removed mode without UART control - cosmetic changes to scan mode
1.2	9. August 2010	- manual mode did not work due to a stupid error - unused channels are labeled as CH-x
1.1	25. June 2009	- channel labels updated for NOAA 18/19 frequency change
1.0	8. June 2009	- first release

The software is released under the GNU GENERAL PUBLIC LICENSE Version 2.
Just flash it to a AT90S2313 (a ATtiny2313 should also work - could not test it) and replace the original AT89C2051 chip.

You can download the hex file here (use "save target as"/"save link as").

You can download the latest source code here.

Older versions can also be downloaded:

V1.4 (18. December 2010)	SRC	HEX
V1.3 (11. August 2010)	SRC	HEX
V1.2 (9. August 2010)	SRC	HEX
V1.1 (25. June 2009)	SRC	HEX
V1.0 (8. June 2009)	SRC	HEX

Happy WX-ing!

For any questions you can contact me using