“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

Ham Radio Usage in Ukraine War Clarified

2022-10-08

The below explanation (English) has been kindly provided by Reddit user /u/Maksym_Kozub. The information below is in his own words, verbatim minus a few formatting edits for readability. The source of this information is located on /r/Ham Radio

On February 23, 2022, the President of Ukraine issued his Decree declaring the state of emergency for one month. By that Decree, the ban was indeed introduced. Then on February 24, after the full-scale invasion started, martial law was declared by another Presidential Decree, approved by the Verkhovna Rada (the Parliament of Ukraine) on the same day. Under martial law, the Cabinet of Ministers had to establish an action plan, which it did, but this time without any ban. However, the military command is authorized to introduce such ban, as well as other restrictions, either on its own or jointly with local/provincial Military Administrations etc.

The command, i.e. the General Staff, has not introduced it. Local/provincial administrations may have introduced it somewhere, but it is known for sure that at least in some provinces the ban was never introduced by their respective administrations. Some Ukrainian radio amateurs inquired about this matter and obtained direct “No ban” replies from local authorities. See e.g. https://v4l1k.notion.site/20-09-2022-6e81425f78124e89b7c0d4f0618ec163#162009851bfd4fb9b8a6fbefdb62f143 (in Ukrainian).

There, a Ukrainian radio amateur has published official replies he received. According to those, there is no ban in Chernihiv, Poltava, Vinnytsia, Kyiv, Lviv, Dnipropetrovsk, Khmelnytsky, Zaporizhzhia, Cherkasy, Kirovohrad, Kharkiv, and Zhytomyr oblasts (provinces).

To make it short: from March 26, if there is no local/regional ban, then there is no ban at all.

Issuance of new callsigns is a different thing. It does not work at the moment, but the reason is not the martial law as such. There has been some new legislation in Ukraine, effective from January 1, 2022, and the radio spectrum authorities etc. had to pass some technical/procedural regulations, to approve new forms of some documents, etc.

Those activities have not stopped, but slowed down for obvious reasons during the war. Sources (Ukrainian ham radio activists involved in those developments etc.) say that we can expect the renewal of callsign issuance in some 2-3 months.

P.S. I tend to monitor all those developments, because I am a Ukrainian who (1) has been planning to get a callsign and an amateur station, (2) is a former lawyer, and (3) joined the ranks voluntarily to defend my country in 2014, was seriously wounded near Luhansk on August 5, 2014, and returned to the trenches in 2015 after recovery.

Now, being almost 55, I am in the army again since May 20 (and again voluntarily).

I do not know the original poster, but I am writing here under my real name, which is quite well-known in Ukraine and not only in Ukraine. (For the last 28 years I have been one of the best-paid conference interpreters in Ukraine.) You are welcome to ask additional questions about the current regulatory situation regarding ham radio in Ukraine, if you have any.


Additional information has been supplied by the same poster for extra clarification and has been posted below verbatim.

Heroyam slava (Glory to heroes)! Thank you for your reply. By the way, Lubny is in Poltava Oblast (Province). The webpage I mentioned has, among other replies, the one from Poltava authorities. Here comes my quick translation of its full text for your understanding. I have purposely included the letterhead and all those bureaucratic formalities, in case your friend decides to contact those officials. Hope this helps.


POLTAVA OBLAST MILITARY ADMINISTRATION

DEPARTMENT FOR DEFENSE ACTIVITIES, CIVIL PROTECTION, AND INTERACTION WITH LAW ENFORCEMENT BODIES

14 Raisy Kyrychenko St, Poltava, 36039, tel./fax +380 532 50-04-24, +380 532 56-23-93

E-mail: uns@adm-pl.gov.ua Web: uns.adm-pl.gov.ua Number in the Unified State Register of Enterprises and Organizations of Ukraine: 1437324

2022-06-29 No. 06-05/1038 In reply to No. KDL-1006 dated _

Municipal budget-funded Institution “Provincial Contact Center” of Poltava Provincial Council

Regarding provision of information

The Department for Defense Activities, Civil Protection, and Interaction with Law Enforcement Bodies of the Oblast Military Administration has thoroughly processed the inquiry No. KDL-1006, regarding provision of information about any restrictions introduced at the level of Poltava Oblast Military Administration with regard to operation of personal and collective amateur two-way radio stations. As a result of consideration, we hereby inform that through administrative documents of the Oblast Military Administration no decision was made on the introduction of any restrictions with regard to operation of personal and collective amateur two-way radio stations.

Director of the Department for Defense Activities, Civil Protection, and Interaction with Law Enforcement Bodies of the Oblast Military Administration (SIGNATURE) Viktor Steblianko

[Document prepared by:] Vitaliy Poteriayko, +380 532 56 53 60

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 […]