More than 8 WSPR(-RX) bands by switching Day & Night bands?

[ph2m]

I 'am not sure if this wish/suggestion has been mentioned before ,
but maybe Pavel (or someone else) who is busy with the development of (the) multiband WSPR-RX/TX can make it work and switch bands depending it is night of day or even more with other bands during grey line period, see the example wich is used with the WSJT-X software...
Example:
8 band RX during daytime: 6, 10, 12, 15, 17, 20, 30, 40M
8 band RX during greyline period: 12, 15, 17, 20, 30, 40, 60, 80M
8 band RX during nighttime: 17, 20, 30, 40, 60, 80, 160, 600, 2200M
This will give up to 12 HAM-bands during 24 hours!
Maybe an Idea, sorry I 'am not a programmer, only a very enthusiastic future Red Pitaya user (ordered and waiting for delivery)

73 de Frank PH2M / JO22HC

[pavel]

Hello Frank,

This functionality is already available. I know that several radio amateurs (LA3JJ, DK5HH, M0NKA) are already running the multi-band WSPR receiver this way.

The idea is to have several configuration files:

• write-c2-files.cfg
• write-c2-files-daytime.cfg
• write-c2-files-greyline.cfg
• write-c2-files-nighttime.cfg

Then crontab can be configured to replace write-c2-files.cfg with the correct configuration file at the correct time:

Code: Select all

00 05 * * * /bin/cp /root/write-c2-files-greyline.cfg /root/write-c2-files.cfg
00 07 * * * /bin/cp /root/write-c2-files-daytime.cfg /root/write-c2-files.cfg
00 20 * * * /bin/cp /root/write-c2-files-greyline.cfg /root/write-c2-files.cfg
00 22 * * * /bin/cp /root/write-c2-files-nighttime.cfg /root/write-c2-files.cfg

It's write-c2-files.cfg that is always used by the write-c2-files program. For example to switch to the daytime configuration write-c2-files-daytime.cfg should be copied to write-c2-files.cfg.

Best regards,

Pavel

[ph2m]

Hello Pavel,

Looks good, I have to figure that out when I received my RP , I understand that the times are now fixed in the 'crontab' , it would be nice that the correct times (vary thru the year/seasons) can be adjusted & calculated automatically by the global position of the RX-station )

73 de Frank PH2M

[ph2m]

Hello Pavel,

Where do I execute 'crontab -e' ? and where will/should it be written?

73 de Frank PH2M

[pavel]

Where do I execute 'crontab -e' ? and where will/should it be written?

'crontab -e' should be run from the Red Pitaya command line.

[ph2m]

TNX Pavel,

Lets have a look if bands are 'switching' at 20:00 UTC

73 de Frank PH2M

[w9pds]

Hi,

I just saw this thread. I put together a python script to help automate this process and make it a bit more intelligent.

This script uses the GEOIP database to determine your coordinates from your public source IP. and then submit those coordinates to a service to calculate the current sunset & sunrise times for your location.

It will then copy your appropriate day & nighttime band config files if it is approaching the appropriate sunset/sunrise timeframe.

This can be run via an hourly cron job and when the hour of sunset/sunrise hits, it will update your file. It will adjust that time appropriately as the season progresses and the days get longer/shorter.


I hope someone finds this useful, I think it is pretty neat

THanks - W9PDS

[w9pds]

Code: Select all

#!/usr/local/bin/python



# Logging In
import requests
import datetime
import json
import os

ip_server = "ipinfo.io"
sun_server = "api.sunrise-sunset.org"

now = datetime.datetime.utcnow()



try:

	ip_response = requests.get('H T T P S ://' + ip_server, timeout=5)
	ip_json_data = json.loads(ip_response.text)
	latlng = ip_json_data["loc"]
	#print latlng
	latlng_list = latlng.split(",")
	ip_lng = latlng_list[1]
	ip_lat = latlng_list[0]


except requests.exceptions.RequestException as e:
	print ('FAILED CALL %s %s' % (e, now))

sun_payload = {'lat': ip_lat, 'lng': ip_lng, 'formatted': '0'}

try:
	sun_response = requests.get('H T T P S ://' + sun_server + '/json?',params=sun_payload, timeout=5)
	#print (sun_response.url)
	sun_json_data = json.loads(sun_response.text)
	raw_sunrise = sun_json_data["results"]["sunrise"]
	raw_sunset = sun_json_data["results"]["sunset"]
	sunrise_list = raw_sunrise.split("T")
	sunset_list = raw_sunset.split("T")
	sunrise = sunrise_list[1]
	sunset = sunset_list[1]
	sunrise_h = sunrise.split(":")
	sunset_h = sunset.split(":")
	sunrise = sunrise_h[0] + ":" + sunrise_h[1]
	sunset = sunset_h[0] + ":" + sunset_h[1]



except requests.exceptions.RequestException as e:
	print ('FAILED CALL %s %s' % (e, now))



if (now.hour == sunrise_h[0]):
	os.system('cp /media/mmcblk0p1/apps/sdr_transceiver_wspr/day-write-c2-files.cfg /media/mmcblk0p1/apps/sdr_transceiver_wspr/write-c2-files.cfg')
	print "Sunrise"

if (now.hour == sunset_h[0]):
	os.system('cp /media/mmcblk0p1/apps/sdr_transceiver_wspr/night-write-c2-files.cfg /media/mmcblk0p1/apps/sdr_transceiver_wspr/write-c2-files.cfg')
	print "Sunset"

[w9pds]

Note - Please change lines 20 & 35 from H T T P S, to the proper https


This forum won't allow me to post as it thinks I'm linking a URL otherwise.


-W9PDS

[ph2m]

I know I started this topic, but only as a user not as a programmer
I hope that some time Pavel will integrate this in the Multiband WSPR RX + Multiband FT8 RX (wich I presently use with my Red Pitaya!) at this moment I have not yet bandswitching between Daytime/Greyzone/Nighttime for my Multiband FT8 RX operational !

73 de Frank PH2M - JO22HC (FT8 Red Pitaya RX: 160/80/60/40/30/20/17/15M)