From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Jacobson Subject: Re: handheld computer + linux + a ham radio? Date: Sat, 18 Sep 2004 07:42:05 +0800 Sender: linux-hams-owner@vger.kernel.org Message-ID: <87mzzoihte.fsf@jidanni.org> References: <20040917002331.28901.qmail@radagast.org> Reply-To: linux-hams@vger.kernel.org Mime-Version: 1.0 Return-path: List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hams@vger.kernel.org These replies belong here, not just in my mailbox: Dave Platt sent me: Depends on the CPU horsepower and the availability of a sound-card interface, I think. With the equivalent of a 200 MHz Pentium (in terms of effective CPU cycles) and a 16-bit sound card interface, it's pretty easy to use the sound card and CPU as a pseudo-DSP to do PSK31, AX.25 packet at 1200 baud (with TCP/IP on top, if you wish), RTTY, and probably most of the other low-to-medium-speed digital modes. Add a GPS receiver of some sort and you can easily do APRS. Controlling the radio is also a real possibility, using e.g. hamlib and its various front-end packages. hg2ecz@ha5kfu.hu sent me: Hi! Which type is your handheld computer? I want to buy in future a good handheld, but I dont know, which give me good audio input. Because all handheld are good audio output (see mp3 listening is popular), but the A/D is oft not so good. I want try HAM digital modes with Yaesu FT-817 from hill, and it is good, if this "pack" is lighter as 2 kg. :) A notebook is 2-4 kg, the FT817 is 1 kg. Important for me: - OS: Linux (or POSIX compatible - it's important) - I need development packages (for example: cross compiler, which I can run in my normal PC, and I can here compile program for handheld. - The sound interface must good (not only D/A, also I want good A/D). Can you some typ advise? Thanks, Zsolt, hg2ecz I reply: Hamlib: didn't get too far on the desktop with my Kenwood TH-F7E. Maybe if I just limit my goals to > Merely check frequency tables then I can get the cheapest monochrome handheld and use the $ apt-cache search palm stuff to download the tables.