Article: 50966 of rec.radio.amateur.digital.misc From: hgoldste@mpcs.com (Howard Goldstein) Date: Thu, 07 Jul 2005 00:35:40 GMT Subject: Re: Ham radio beginner? References: Message-ID: <1120696540.69109@news.queue.to> On Wed, 06 Jul 2005 16:02:17 GMT, Ham Radio wrote: : If you want to get into ham radio and don't know how to start, check out: : : http://www.hamradios This looks to be an ugly and useless site. Why would someone spend $10 on this drek? Article: 50967 of rec.radio.amateur.digital.misc From: Mike Subject: Re: Ham radio beginner? References: Message-ID: Date: Thu, 07 Jul 2005 14:10:50 GMT On Wed, 06 Jul 2005 16:02:17 +0000, Ham Radio wrote: > http://www.hamradiostarter.com Weird. It crashed Firefox but works in Konqueror. Anyone else have that problem? 73 de Mike VE6HMG Article: 50968 of rec.radio.amateur.digital.misc From: "Polymath" References: Subject: Re: Sound Card or Serial TNC Date: Sat, 9 Jul 2005 06:08:48 +0100 Message-ID: <42cf5dd8$1_3@x-privat.org> To get "into" the world of digital, you'll need to get your finger "out"! (Does communication break up or break down?!) "Jerry" wrote in message news:ya2dnRjJPbWsb17fRVn-oA@giganews.com... >I am looking to take the plunge into the world of Digital. Article: 50969 of rec.radio.amateur.digital.misc From: "Polymath" References: <1120365426.963267.266950@g44g2000cwa.googlegroups.com> Subject: Re: dsp Date: Sat, 9 Jul 2005 06:11:30 +0100 Message-ID: <42cf5ddf_3@x-privat.org> When your friends upgrade their cell-phones, grab the old one before it hits the bin! You'll get a DSP chip, and also an ARM micro with several megabytes of RAM and FLASH thrown in! "xpyttl" wrote in message news:BzSxe.11501$Si3.10808@fe06.lga... > In "Experimental Methods in RF Design" there is a DSP project that might > be worth looking at, however, most of the DSP chips are still pretty > pricey, and generally only available in hard to work with packages, which > means buying demo or experimenter boards that are even more pricey. Article: 50970 of rec.radio.amateur.digital.misc From: Tony VE6MVP Subject: Re: Ham radio beginner? Message-ID: <8sq2d1tdt90j9hutbnhikam1jsd86atlle@4ax.com> References: Date: Sun, 10 Jul 2005 18:40:28 GMT On Wed, 06 Jul 2005 16:02:17 GMT, "Ham Radio" wrote: >If you want to get into ham radio and don't know how to start, check out: > > http://www.hamradiostarter.com > >You will find everything you need to get your license and get started in ham >radio. Forget it. Find a ham or club in your area and ask questions. Tony Article: 50971 of rec.radio.amateur.digital.misc From: "Mike Speed" Subject: Re: Digital signal processing. Date: Sun, 10 Jul 2005 21:42:04 -0600 Message-ID: References: <0O6dnX7E4aGaUjzfRVn-hQ@rogers.com> > > Here is where I need the help... I have looked at websites, which talk > about dsp as if I already know what it is.. and try to sell me on a chip or > kit or board which is supposted to do dsp.. but I am still trying to find > out how dsp can help me ..... > That's a really big area and rather difficult to answer. Noise reduction is a very useful aspect of DSP. Depending on your rig, the filters can be helpful, too. As far as outboard DSP, you probably won't go too far wrong with a Timewave DSP-599zx. It's expensive, but the noise-reduction components are supposed to be quite helpful. A sound-card/computer approach that is very good is an older program known as DSP Blaster (db). I have searched high and low for a modern equivalent software implementation (something that can run on Windows XP, for example), and I have never heard its' equal. It has an agressive noise reduction component and an coherent CW filter which is hard to beat. I have found its' noise reduction unit to be quite useful in EME. The problem is Brian Beezley, the author, discontinued it. The program can still be found by a resourceful individual. Onboard IF DSP is supposed to be the best - especially when combined with AF DSP in the same rig. I don't know which radio has the best perfomance-to-cost ratio of such an implementation. 73