Difference between revisions of "Project:Packet Radio/Bulletin/1805"
(Packet bulletin for May 2018)
Latest revision as of 15:09, 1 May 2018
-+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+- _____ \ | / L O N D O N H A C K S P A C E May 2018 update \|/ P A C K E T R A D I O to HACKRS@GBR | ____________________________________________________________ .-"""-. / \\ \ We are working together to build and maintain an amateur | \\,='\\ | radio packet network in and around London, UK. \ \\ / '-...-' Internet email: email@example.com __|__ AX25 email: HACKRS@GB7CIP.#32.GBR.EURO === Internet IRC: #lhs-radio on irc.freenode.net = https://wiki.london.hackspace.org.uk/view/Project:Packet_Radio -+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+- ..::[ NEXT MEETING: TUESDAY 19 JUNE 2018 AT 19:00 ]::.. A get-together, a show-and-tell, and a time to discuss our next steps. Since the former space at 447 Hackney Road is now closed, the meeting will be held at an alternate venue yet to be decided. The weather will likely have improved by then, and a meeting on a nearby hilltop has been proposed. ..::[ A DIRE WOLF DIGIPEATER AND I-GATE ]::.. Marrold 2E0SIP has built an APRS node based on the Dire Wolf software soundcard AX.25 packet modem/TNC. It consists of an Orange Pi, a USB isolator and a cheap USB soundcard interfaced to a Tait UHF radio. The soundcard has GPIO pins intended to be used for setting mute and volume, but which has been repurposed for controlling PTT. The node was tested very successfully with Paul M0OKE's Baofeng connected to APRSDroid and Sam M0SKF's Kenwood handheld with built-in APRS. It may be that such software TNCs provide better decoding of weak signals than traditional hardware TNCs. ..::[ CLARITY ON LICENSING ]::.. So that we may continue with our various projects, the group are trying to get definitive answers on licensing conditions for various forms of packet operation and specifically what is permitted at each licence level. We are unsure about whether (i) APRS i-gates need to be licensed and (ii) whether unattended RF-only digipeating is permitted without an NoV. Our aim is to compile a concise list of licensing questions in order to get a clear answer from Ofcom. ..::[ PACKET ON THE 4M BAND ]::.. The group are interested in the possibility of packet on the 4m (70MHz) band, and whether it would give greater propagation than the more conventional 2m or 70m bands. Phil M3LVI and Sam M0SKF are doing some testing with a crystal-controlled single-channel radio, of which they have five. One possibility is that such radios could form the basis for robust links between nodes. ..::[ TOWARDS A NOV FOR A PACKET REPEATER ]::.. Equipment is being finalised by Sam M0SKF for a packet repeater, after which the group will fill out the application for a NoV (Notice of Variation). Even if rejected, this will give us a better idea of how to proceed when the hackspace has its new premises. ..::[ THE TNC POOL ]::.. Any member of London Hackspace who would like to try out packet with real hardware can borrow a TNC from the TNC pool. You can sign one out on the wiki. If anyone out there has a TNC at the back of the cupboard and would like to lend or donate their old hardware to the pool, please contact us. We thank LHARC member WSPR for his donation of five TNCs which hopefully will soon be added to the pool. ..::[ NETWORK MAP ]::.. The network map shows the users interested in connecting via packet and the success with which they have established connected between them. It remains unchanged from last month. Reports of successful connections are welcome! ,----------------------------------------------------------------------. | | | .-+ M0SKF | | M0OKE + _.-" . | | 2E0TPS _+-" . | | M6OSR +" . | | | . | | + M0PLL .' . | | | . | | .' . | | | . | | .'. | | |. | | ----- reasonably reliable (GB7CIP) +. | | . . . occasional success | `----------------------------------------------------------------------' ..::[ LINK OF THE MONTH ]::.. http://tarpn.net - a project, similar to ours, to encourage builders to build the largest amateur radio packet network that they can. The TARPN is based on G8BPQ nodes running on a Raspberry Pi computer with outboard TNCs or TNC emulators. ..::[ CONTRIBUTIONS ]::.. If you have any contributions for the June 2018 bulletin, please send them via mail (internet or packet radio) to the addresses shown at the top of this message. -+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+oo+==+- [end]