Jim Suggest it's this thing called antipodal convergence. http://www.lwca.org/library/lfprop/adcock/lfprop1.htm mentions under convergence for VLF but IIRC I read something about it for HF as well. I
Jim Forgot to fix my reply address in earlier email... If you've any interest in early solid state stuff. www.edebris.com/~mineral/ The german-english translation of the 1874 Braun article is a first
JeffWhy do you ask? Had I a peg or jup, I would be using linux. Abandoned windows about 6 months back. Don't miss it except will need to do my taxes... -Bob ah7i/4 please reply ah7i@atl.org Please co
Good question. Their RX331 and RX340 are essentially the same RX. Perhaps they will release a small rack mount version of the Orion, no front panel, for about 60% of the price. Ethernet with two way
Just some reference points...re: the 3kHz spec. Sitting in my lap, as I type, is a card from telco FDM radio gear. The cover is off. The Alpha crystal filter is labeled 3.2kHz. I have in the warehous
128kbps serial to 5 miles over twisted pair. Want to remote you station? ADTRAN ISU-128 ISDN CPE also has long haul modem capability. A unit may be set to provide clocking and you can run a 5 mile lo
Two day to Oahu is three day and no Sat delivery available on overnight (which takes two days) I'm surprised they can get it to Kauai in 3 day as well. Will much appreciate hearing comparison results
I've been researching components to use in constructing a software defined radio and when specifications are given, there is a circuit diagram, board layout as tested, bill of materials so you know s
Where? -Bob ah7i/4 in Atlanta :-) Doug is giving a presentation on Orion and DSP in Atlanta tonight, and when he returns on Wednesday I plan to take a bunch of the graphs (block diagrams, mostly) reg
They'll get this worked out. Just because it's a computer doesn't mean it should require reseting. For example, my Sun SPARC 10 has been up for over 700 days. Since 1996, it's only gone down a few of
You guys missed my point completely. I did not say, "ugh, unix good, mmm, windoze bad" I said that I considered the MS OS offerings to be immature. Stability running a single application isn't enough
Tom This is Bob AH7I. Unfortunately in W4 land until June or July. Wonder what part of town and what you are using for an antenna? I've not gotten an antenna up yet but will be bringing a Hustler 4BT
You might mention on the gnuradio mailing list. -bob ah7i According to the DRM website (www.drm.org), you need a 12 kHz IF output from the receiver, which is digitized by a computer soundcard, althou
Mark http://www.gnu.org/directory/misc/GNURadio.html http://mail.gnu.org/mailman/listinfo/discuss-gnuradio also check out linrad http://www.nitehawk.com/sm5bsz/linuxdsp/linrad.htm has a mailing list
Does the 'O' have any digital outputs? One could always use the PeeCee to do a lot of additional display stuff. Firewire aka IEE1394 would be nice as it can handle close to 380kbs transfer for a sing
want to swap for a PRC-47 (military radio) have radio, cover for case, mic. antenna, and power cord. It has a LSB filter installed. I don't have a PS to go with it, and don't need the TenTec supply.
Follow the links. http://perso.wanadoo.fr/berke/tempest/#mkra98 If one really wants to, it is possible to 'tune' the video disply in sync with the received frequency in order to minimize radiation th
Swap NOS 4000 Watt Sine wave inverter for your Jupiter. HiFi <2% THD no to full load 48 V input. In Atlanta. 150lb rack mount good for inductive loads but designed for communications gear and instrum