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N2EY:
I think all my college professors were in agreement on one point--YOU MUST FIRST LEARN THE RULES!!! But, only so you can effectively break them later--if they were not in agreement with this second part, at least, I find those who are in "the real world." However, that is NOT to suggest hams live in the real world... grin John wrote in message oups.com... John Smith wrote: Dee: The only person talking 300 baud is you, No. The FCC says so too. I told you to throw away that 300 baud modem and get a decent one (or revamp an old phone modem to your needs.) On most of the HF/MF amateur bands, amateurs in the USA are limited to 300 baud for the transmission of "data". Now it might be argued that sending .jpgs is an "image" mode, and is only allowed in the 'phone subbands, with correspondingly wider bandwidths. But there's more to it than just hooking a typical computer modem to an SSB rig. Let's say some hams find a way to fit, say, 14 kbaud into an SSB bandwidth with characteristics that will work on the HF ham bands. And suppose they get FCC to say it's OK and all that. The transmission of a 1 meg .jpg will still take more than a minute with no errorchecking. Since you didn't even understand that, you certainly won't grasp the rest... Try grasping the current regulations, John.... 73 de Jim, N2EY |
"Kim" wrote in message m... "Dan/W4NTI" wrote in message ink.net... "Kim" wrote in message m... "Michael Coslo" wrote in message ... What is more important: 1. Having a license that allows HF access. 2. Not having to learn Morse code. IOW, is standing on principle, and refusing to learn Morse code a better thing than learning it to get the priveliges? - Mike KB3EIA - Hi Mike: I think you know I don't "hate" Morse Code. I, personally, never really wished to try it out; just like I have never really tried SCTV, anything digital (except for APRS--if that can be considered digital), ATV, etc. I think you get my point. Since I have ever first perused this newsgroup, except for a few real jerks, I'd believe that most of "us" who just don't wander into other means of communication--including Morse Code--are pretty much the same as I am. I absolutely support those who use the mode (as I do anyone who uses and/or invents any other modes), am willing to honor the tradition of Morse Code (as I honor the tradition of other steadfast things in amateur radio), and hold no animosity for anyone--OTHER than the "idiots" on both sides of the floor (as it would be stated in political terms :o). For me, it was never a matter of wanting HF privileges that much, and I learned the 5wpm needed to get the privileges I was happy with. So, could you do me a favor? Please rethink your phrase "Morse Code Haters." I don't think most of us feel that strongly about it. Kim W5TIT I'm sorry.....knowing full well she has me deep sixed, I just have to comment..... What the heck is SCTV? Is that a TV show? Or maybe she means Slow Scan TV?? SSTV.......Hmmmmm. Then...."APRS if that can be considered digital". Amazing.....and she has a license? Amazing. Dan/W4NTI I haven't had you deep-sixed since I began persuing the newsgroup again, Wonder-4-Not-Too-Intelligent. And, as usual, you're still the asshole you have always been. Kim W5TIT Thank you for the compliment W5TWIT. Dan/W4NTI |
I also might add that with "DVD Decryptor" and "AutoGK" you can
compact a full 2+ hour DVD to a regular 650 meg cdrom which is playable via windows media player on virtually ANY windows computer having minimal specifications. Indeed, it may help some to play with this as it really gives one a picture into the power of the medium which is being missed by hams... as they stoke their vibroflex's... .... the terms "DVD Decryptor", AutoGk, Divx and avi will provide much enlightenment... John "John Smith" wrote in message ... Dee: I don't know about how the laws cover physics in your neck of the woods, but here it goes like this: The "bandwidth" of my phoneline just happens to be about 300 hz to 5000 hz (this can vary widely with equip--but the phone company pretty well guarantees this minimum) and, my computer modem uses this "audio bandwidth" to send/recv data at speeds up to 5.7K bytes per second. Now, I just happen to know a guy with a transceiver which he put mic level jacks on to interface with a transceiver and a USRobotics external 57K modem and set to software flow control and ignore the fact there is NO DC carrier voltage on the line. Since the transceiver he hooked the modem to has a modified audio recv/xmit bandwidth of approx ~100 Hz to ~8K he has PLENTY OF BANDWIDTH. ... now really, a high school student should be able to manage this--indeed, the one I seen did... the USR modem takes care of data compaction and error control--pretty straight forward really... I expect the other hams will "discover" and present this "revolutionary" idea within the next decade. grin ... from there it was a simple matter to take/input the audio from/to the transceiver from the computer sound card and do enhanced encryption/compaction by means of software on the digital signals--basically you find very similar in cutting edge technologies--and while I am not 100% certain--I would almost bet it is done nearly 100% in a similar fashion... being a software engineer, I can almost guarantee that part--I am a little less sure about how they implement the hardware and I rather doubt it is an ancient 56K phone modem ROFLOL!!! Works equally well for data/voice/video. That is all taken care of in software, you simply need to know what type of data you are getting, if you try to interpret voice as text or the opposite--I am sure you can see there would be a problem... I might add, the first time I seen this done was over five years ago... so really, the hams may have it as quickly as another five years! innocent look John "Dee Flint" wrote in message ... "John Smith" wrote in message ... Dee: The only person talking 300 baud is you, I told you to throw away that 300 baud modem and get a decent one (or revamp an old phone modem to your needs.) Since you didn't even understand that, you certainly won't grasp the rest... John Well it just happens to be against the rules to use higher than 300 baud on HF so that is the limit that the data/video/audio signal must fit within. There is a very good reason for that limit. The higher the baud rate, the greater the bandwidth required, and the fewer users can fit on the band. And eventually you hit a baud rate where the required bandwidth is such that one signal won't stay within the upper and lower band edges. Now if you're talking VHF, it's already been done and your "bright, new minds" are a day late and a dollar short. Since you don't understand that, you certainly won't grasp the rest.... Dee D. Flint, N8UZE |
Dee:
I should point out, with divx/avi compression a 3 minute color video of relatively good quality is easily obtained in 1 mb or less... a BW is much, much smaller John "John Smith" wrote in message ... Dee: The only person talking 300 baud is you, I told you to throw away that 300 baud modem and get a decent one (or revamp an old phone modem to your needs.) Since you didn't even understand that, you certainly won't grasp the rest... John "Dee Flint" wrote in message ... "John Smith" wrote in message ... Mike: Yes, that quite well proves you don't even have a clue where to begin and what would be a practical method to accomplish it... ... don't feel alone, these ancient brain deads here are in the same boat and have ran off and ****ed off all those who can do such things... ... at first I just thought you guys were probably not interested in video conferance by radio--now I find out you are simply unable and even lack the basic concept of how it is done! John OK, SHOW US THE MATH that it can be done on HF within 300 baud. We've already got real time video with audio on VHF and higher but show me it can be done. Explain in detail the encryption/decryption method. And so on. As an engineer, I can follow the math if you can post it. Dee D. Flint, N8UZE |
"John Smith" wrote in message ... I also might add that with "DVD Decryptor" and "AutoGK" you can compact a full 2+ hour DVD to a regular 650 meg cdrom which is playable via windows media player on virtually ANY windows computer having minimal specifications. And how does that allow it to be transmitted over the amateur bands in a useful time period??? 650 meg is still far more than can be sent over the HF bands in any practical amount of time. Indeed, it may help some to play with this as it really gives one a picture into the power of the medium which is being missed by hams... as they stoke their vibroflex's... It may help you to calculate the transmission time of 650 meg at only 300 baud. And don't tell me the rules can be changed. As I said before, that's not practical as the speed that would be required to do the type of transfer that you want at any bearable speed would wipe out an entire band or more. So tell us the magic encryption scheme that lets you transfer that data in a matter of minutes. Dee D. Flint, N8UZE |
Dee:
Are you arguing: 1) That people should not do this? -or- 2)It is impossible? It started out that it was impossible--of course that is ridiculous and only old hams would think it was, the technology has existed and been in use for at least a decade (and is a prime example of why the tech savvy young crowd make faces at amateur radio.) Now you want to start arguing rules--I decline--I have NO TIME for that... take rules up with the lawyers here, none of that interests me... I will police myself or suffer the consequences, others only need worry about themselves... .... why anyone would think 56k is "dangerous" on HF should have their heads examined... it is the audio bandwidth that is of consequence here, not rf bandwidth! (with the exception of FM which it can be used on with even greater speed and success!) Spread Spectrum would be much faster, 1-100 mb per sec should be no problem and virtually impossible to detect, if done over a wide enough spectrum... As far as the hardware, enough information has been given in a previous post of mine for a computer/radio savvy tech to stick one of these puppies together on a weekend, any second year college student in CS/EE should be able to handle the software, this is assuming an ibm/clone/work-a-like, I have never seen it done on a mac or mainframe, but possible I am sure... Now you are just standing there looking silly... John "Dee Flint" wrote in message ... "John Smith" wrote in message ... I also might add that with "DVD Decryptor" and "AutoGK" you can compact a full 2+ hour DVD to a regular 650 meg cdrom which is playable via windows media player on virtually ANY windows computer having minimal specifications. And how does that allow it to be transmitted over the amateur bands in a useful time period??? 650 meg is still far more than can be sent over the HF bands in any practical amount of time. Indeed, it may help some to play with this as it really gives one a picture into the power of the medium which is being missed by hams... as they stoke their vibroflex's... It may help you to calculate the transmission time of 650 meg at only 300 baud. And don't tell me the rules can be changed. As I said before, that's not practical as the speed that would be required to do the type of transfer that you want at any bearable speed would wipe out an entire band or more. So tell us the magic encryption scheme that lets you transfer that data in a matter of minutes. Dee D. Flint, N8UZE |
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Dave Heil wrote: wrote: Ginger Raveir wrote: Wake up and smell the coffee. Ham radio is and has been for many years, a dead and dying hobby, where today old white men form the core of the hobby. Old white men also form the core of the U.S. Senate. Ya want the rest of the list? So now what . . . ? . . . thought so . . w3rv I'm white and I'm a man. I'm hoping to be old some day. I'll send you an application for admission to the Core as soon as you qualify. Dave K8MN w3rv |
kelly:
To tell you the truth, I never planned on getting this old--it just happened! grin John wrote in message oups.com... Dave Heil wrote: wrote: Ginger Raveir wrote: Wake up and smell the coffee. Ham radio is and has been for many years, a dead and dying hobby, where today old white men form the core of the hobby. Old white men also form the core of the U.S. Senate. Ya want the rest of the list? So now what . . . ? . . . thought so . . w3rv I'm white and I'm a man. I'm hoping to be old some day. I'll send you an application for admission to the Core as soon as you qualify. Dave K8MN w3rv |
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