“New” 10m band NET10 QRG

We (the #packetradio bros around the world) are going ahead and publicising a “new” packet location on 10m for #hfpacket #ARDOP #robustpacket #VARAHF and #FX25 300b. “Net10”: https://eindhoven.space/radio-experiments/packet-radio/where-to-find-packet-on-10-meter-band-us-eu/

It’ll be easy for KAM-tone TNCs as well using 28.140MHz LSB, AX25/FX25 inverts to USB for the other modes so dial freq for the multimode stations is 28.1371 USB @ tone pair 1000hz center frequency. See link for chart, much easier.

40m APRS

For APRS-style beacons please follow:

  • Beacon rate no less than 15-20 minutes;
  • APRS DIGI path should be no more than WIDE2-1 – Just one hop.
  • APRS “IGate to HF” path should not use WIDE-digis – to prevent unnecessary clutter.

Recommended BPQ32 APRS-settings:

Where N is the Port Number for APRS (see chart)

  • APRSPath N=APRS,WIDE2-1 ; N – is the main HF packet port number.
  • GATEDPATH N=APRS ; N – is the main HF packet port number, do not put WIDE-digi here!
  • BeaconInterval=20 ; set to 15 or more min on your choice, its fine if operators want to define a different rate (15, 17, 20, 22 etc mins)

Some ideal APRS settings are at the discretion of operators:

  • Digimap N=N ; enable APRS DIGI only on HF port
  • Digimap N=N,IS ; enable digi on HF port + gate traffic TO APRS-IS.
  • Digimap N=IS ; enable gate to APRS-IS, no HF DIGI.

Use only one APRS ‘Digimap’ declaration per port.

For our main stations (qrv 24/7 or regular) it is suggested to utilise the complete setting:

  • Digimap N=N,IS

For part time operators please at least use:

  • Digimap N=IS

Do not forget to replace ‘N’ with your main 300bd packet port number!

Coordinated and written with help from Serge, UT1HZM

Hacker News – Via Shortwave Radio

This is a full length demonstration showing a 900km link beyond line of sight. Using robust narrowband data transport bouncing off the ionosphere to access the Hacker News website as well as pull an article across the link. The link is bidirectional and interactive. Using 500hz bandwidth. Later in the demonstration the same data is pulled directly over the internet as a speed comparison, showing that the shortwave method is indeed quite usable.

The background music is included as well to emphasize the robust nature of the data transfer as it is quite possible to decode the information in spite of the noise. The music is also a few work in progress pieces that have not yet been released 🙂

73 PE1RRR – RedHeat

Packet Radio / QRG Update

This update does not affect anyone using 14.105 LSB with a standard old fashioned TNC.

For those operating on the USB QRG, we have recently had to alter the QRG dial frequency slightly up and compensate by moving one of the modem tone pairs down 100hz in order to put sufficient spacing between the multimode and packet channel “Blue”. Prior to this there was a small overlap causing some problems especially if the radios participating were slightly off-frequency.

Below are the new QRG details for all three bands.

20m

QtSoundModem
The multi platform ported version of UZ7HO soundmodem by G8BPQ.

40m

10m

New RPI4 Image Available

My first RPI image has been created to flash an SDCard which will boot a RPI4 into a bank of TNCs – ARDOP, Packet and VARA for use simultaneously. With huge thanks to the WheezyE Winelink project for the integration of VARA on Linux, this image includes all the setup tweaks to get them all running on one audio interface, an attachable VNC session for GUI monitoring, while your remote BPQ32 node links into it to control the TNCs. Designed to be used where one Pi per HF radio covers all three modes at the same time.

Check out the rather long winded but in depth explanation of the setup in the posted video, the image is also dual purpose and doubles as an emulation platform for running some of the best packet terminal software from the yesteryear:

Raspberry Pi4 Trifecta TNC-Bank Image Companion Documentation

Introduction A (long winded) demonstration of the setup Download The image requires at least a 16GB SDCard (8.3GB used) and will auto-resize to the full capacity on boot up. P.S This document is still a work in progress 😻 When Used as A TNC Bank Upon first boot the image will resize itself to fit […]