Based on a constellation of PSK31-based Probes (automatically IDing stations) the band has already shown life as of 7:30 AM ET in the USA. http://propnet.org/catch3.php?band=10&date=20181202&call=¢er=

Some of you here may recall my posts about using FSQcall as a simple method of net check ins versus the tedious method used when Olivia 8/500 NBEMS large nets are opening up. Not many had interest in

So I finally got around to trying JS8Call tonight. Nice work by the author but still seems like a lot of work to send a few characters at a time. Useful for experiments though. Andy K3UK

I was using the Winlink system to move some traffic today, via VARA. First time in a while and I was pleased how easy and quickly VARA handles things on HF. I tool a look at the Winlink statistics on

All: Thought the group might be interested in JS8-Call. It's a chat mode derived from FT8 and developed by Jordan, KN4CRD. The protocol uses the same commands as FSQ Call which was developed by Murray

New release of MULTIPSK (4.38) Pour les francophones: la version en français de ce message se trouve sur mon site (http://f6cte.free.fr). Il suffit de cliquer sur le lien "Principales modifications (c

Hello to all, I proposed a pseudo-mode called “Extended Message”, in this test version 2: http://f6cte.free.fr/MULTIPSK_4_38_test_version_2.zip Paste this address in your Internet Explorer or equivale

All: I've been experimenting with WSPR to determine the decode probability of other digital modes. The attached chart illustrates the calculated results applied to a few popular modes. It shows whethe

FYI http://www.leradioscope.fr/blog/430-quel-mode-choisir-pour-le-trafic-en-digimodes?fbclid=IwAR2huoOXyC5aGIH9KR6SUlP6atNmNAQA_taIuLHG2AGFopjpzgI5svPKlE8 Quel mode choisir pour le trafic en Digimodes

Can someone clarify the position on sending data using FM on 10 meters , inside USA used to be 1200 packet on 29.250 , using FM , many moons ago in Europe , rest of world but, is data allowed at that

Hello, If this is a duplicate, I apologize. pc acting up again. Have a new SDRPlay RSP-2 and am using it with HDSDR. Am also working on using CSVUserListBrowser with it. Terrific program. Sr. Citizen

Hi all, A very basic "digital" question. Yesterday, I was doing some basic DSP 101 (trying to create a FIR-filter based on the measured impulse response of an analog filter) and was watching this vide

HamRing, the Selective Calling app experimental demo has been released. The demo version is compatible with CCIR493-4 Open Selcall, which is commonly found in HF Land Mobile radios, such as Codan, Bar

All: I did some testing with WSPR this week to see how well my digital mode portable station performed in the field. The setup consists of a QRP transceiver and a new half-wave end-fed dipole. The s/n

I have monitored a few hours lately and heard no digital SSTV. Is there still Easypal use on HF? Andy K3UK

All: I planed on using RMS Express paired with the VARA modem with a lightweight portable setup. The problem is that the transceiver requires CAT PTT which is not an option with RMS Express. The trans

Thank You Tony -K2MO for the info i was wondering what i should chose the other day ...........now i know. Thanks again Lester/W3LES

During the past year I have been traveling in Europe quite a bit and not paying much attention to this group. I have not seen much of Mathew lately, he was to take over my role. Anyway, while settled

All: I thought I'd pass along a slightly off-topic subject that some digital-mode portable operators might appreciate. I often work portable and found LiFePo batteries give excellent results. The perf

Hello, Sr. Citizen now, so please bear with me a bit. Getting back into SDR hobby, and will be purchasing a SDRPlay RSP2. Confused over which software from this site to use. Apparently there are two p