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Something for someone to do.
I don't know whether I've got the know-how or the time to design a homebrew
VHF yagi for the marine band. So, is anyone out there interested in providing a service to all marine band DXers/eavesdroppers of designing and producing *full constructional notes* on a range of marine antennas, and then putting the designs up on a website. All antennas shall principally be for reception. All antennas should be described as covering 156-162Mhz. As far as the yagis are concerned, they should range from 2 to 6 elements. All yagis shall have 4mm (or 3/16") diameter parasitic elements. All parasitic elements shall be secured to boom by nylon rivets as per G3SEK's notes at: http://www.ifwtech.co.uk/g3sek/diy-yagi/#Construction All booms shall consist of either 20mm or 15mm square tubing. The DE for all yagis shall be 8mm (or 5/16"). The DE for all yagis shall be a regular hertz dipole. There shall be some kind of balun. Please, please! |
"Richard" wrote in message ... All yagis shall have 4mm (or 3/16") diameter parasitic elements. I think this is reasonable. It will keep the antenna lightweight. Why have bigger if you don't have to. The DE for all yagis shall be 8mm (or 5/16"). Possibly this could be 3/8" because this size might generally more easily available. The DE for all yagis shall be a regular hertz dipole. Why have a folded dipole if you don't have to. How are you going to mount DE? Are there any commercially availble dipole centers that take 5/16" or 3/8" tube? Will you have to homebrew the dipole center peice? (In UK I can obtain commercial dipole centers that hold 1/2". I've not sourced any others that take 5/16" or 3/8"). |
I don't know whether I've got the know-how or the time to design a homebrew
VHF yagi for the marine band. So, is anyone out there interested in providing a service to all marine band DXers/eavesdroppers of designing and producing *full constructional notes* on a range of marine antennas, and then putting the designs up on a website. All antennas shall principally be for reception. All antennas should be described as covering 156-162Mhz. As far as the yagis are concerned, they should range from 2 to 6 elements. All yagis shall have 4mm (or 3/16") diameter parasitic elements. All parasitic elements shall be secured to boom by nylon rivets as per G3SEK's notes at: http://www.ifwtech.co.uk/g3sek/diy-yagi/#Construction All booms shall consist of either 20mm or 15mm square tubing. The DE for all yagis shall be 8mm (or 5/16"). The DE for all yagis shall be a regular hertz dipole. There shall be some kind of balun. Please, please! Just out of curiousity, why can't these be purchased already from commercial sources? Note: I am not in the 'lawn furniture in the sky' business. 73, Chip N1IR |
"Richard" wrote in message ... I don't know whether I've got the know-how or the time to design a homebrew VHF yagi for the marine band. So, is anyone out there interested in providing a service to all marine band DXers/eavesdroppers of designing and producing *full constructional notes* on a range of marine antennas, and then putting the designs up on a website. All antennas shall principally be for reception. All antennas should be described as covering 156-162Mhz. As far as the yagis are concerned, they should range from 2 to 6 elements. All yagis shall have 4mm (or 3/16") diameter parasitic elements. All parasitic elements shall be secured to boom by nylon rivets as per G3SEK's notes at: http://www.ifwtech.co.uk/g3sek/diy-yagi/#Construction All booms shall consist of either 20mm or 15mm square tubing. The DE for all yagis shall be 8mm (or 5/16"). The DE for all yagis shall be a regular hertz dipole. There shall be some kind of balun. Please, please! If I was going to put up an antenna like that, I would look for a used CushCraft 2m 7 element antenna, and cut it down. I once bought one for U$7.00. Several years ago QST had an article on making a VHF TV antenna work on 2M; Changing that to 156-162 instead should be simple. Tam/WB2TT |
"Richard" wrote in message ... So, is anyone out there interested in providing a service to all marine band DXers/eavesdroppers of designing and producing *full constructional notes* on a range of marine antennas, and then putting the designs up on a website. This would probably be the start of your 6 element design: Parasitic elements 4mm dia rod , DE 8mm or 5/16" tube. ------------------|------------------- R 37.106" | ^ 0.000" ------------------|------------------ DE 36.772" | ^ 9.275" ------------------|------------------ D1 34.154" | ^ 12.250" ------------------|------------------ D2 33.34" | ^ 23.800" ------------------|------------------ D3 33.34" | ^ 34.213" ------------------|------------------ D4 32.58" ^ 47.211" IOW: X Y Z Dia" REF End 1 0.000 -18.553 0.000 0.187 End2 0.000 18.553 0.000 DE End1 9.275 -18.368 0.000 0.312 End2 9.275 18.368 0.000 DIR1 End1 12.250 -17.077 0.000 0.187 End2 12.250 17.077 0.000 DIR2 End1 23.800 -16.672 0.000 0.187 End2 23.800 16.672 0.000 DIR3 End1 34.213 -16.672 0.000 0.187 End2 34.213 16.672 0.000 DIR4 End1 47.211 -16.229 0.000 0.187 End2 47.211 16.229 0.000 Boom 15mm square, 50" long. Parasitic elements slotted through boom with nylon rivets system. DE using commercial dipole center peice. DE hertz dipole with some kind of balun arrangement. Potential problem?: Parasitics slot through boom because they are held in place (say) by the nylon rivets system, DE will *not* pass through boom but above it. Will that make a difference? As you see I have some dimensions given me, but I have no skill to take these dimensions (assumimng I stick with them) as a starting point and produce an actual constructional design. |
So, is anyone out there interested in providing a service to all marine band
DXers/eavesdroppers Why, exactly, is there a need to 'eavesdrop'? Who, in particular, are you trying to 'eavesdrop' on? How many 'eavesdroppers' would seek such 'service'? I am confused by your motivations and would be better enlightened with more info in this regard. I ususpect I am not alone in this confusion. Many thanks, 73, Chip N1IR |
"Fractenna" wrote in message ... So, is anyone out there interested in providing a service to all marine band DXers/eavesdroppers Why, exactly, is there a need to 'eavesdrop'? Who, in particular, are you trying to 'eavesdrop' on? How many 'eavesdroppers' would seek such 'service'? I am confused by your motivations and would be better enlightened with more info in this regard. I ususpect I am not alone in this confusion. Many thanks, 73, Chip N1IR Oh you got me! I've been caught out! I'm listening to the marine band. Shall I expect the police at my door? Quickly I must hide my apperatus! I think not. |
"Richard" wrote in message ... "Richard" wrote in message ... So, is anyone out there interested in providing a service to all marine band DXers/eavesdroppers of designing and producing *full constructional notes* on a range of marine antennas, and then putting the designs up on a website. This would probably be the start of your 6 element design: Parasitic elements 4mm dia rod , DE 8mm or 5/16" tube. Actually, the figure for the parasitics were given as 0.187" dia. that's about 4.75mm or nearer 5mm than 4mm. |
"J. McLaughlin" wrote in message ... Dear Richard - no full name - no call - no location - probably not a real E-mail address: Let me see if I understand: You have the strange idea that someone who has the experience and skill to craft for you an expensive design (for free) is looking for something to do. Strange indeed. Mac N8TT -- J. Mc Laughlin - Michigan USA Home: This is admirable. Let me understand: You mean that it takes weeks of constant work and a deep knowledge of antenna theory and design to take an off-the-shelf NEC file (which you can buy for a few bucks, and probably many are freely available) - to end up with a half decent antenna? If that is the case, then of course my expectations may be unrealistic. But I was thinking that for someone who knew what they were doing, taking an NEC file as a starting point and then applying adjustments to take into account the actual construction details would be a few hours work. Because antenna programs do all the calculations. You just need to know what you are doing. I would not want anyone spending much time on something, of course. I just thought for someone who knew what they were doing it would a be a doddle. Heck, the real design work has been done already, it's just a matter of a few small adjustments. So I thought. But if that is not the case, I stand corrected. And if so, so I'd have no option but to do everything myself. Because that would practically be unavoidable. I never thought this was the case. |
"J. McLaughlin" wrote in message ... Dear Richard - no full name - no call - no location - probably not a real E-mail address: Let me see if I understand: You have the strange idea that someone who has the experience and skill to craft for you an expensive design (for free) is looking for something to do. Strange indeed. Mac N8TT -- J. Mc Laughlin - Michigan USA Home: I bought some "models" from Mr Cebik. This is what he says in his notes: " Although many of the designs may be directly built from the models in this collection, the models themselves are for study purposes. Perfecting the design to a level that permits construction of an antenna that is both electrically and mechanically sound is your responsibility. L. B. Cebik, W4RNL" This is my problem and what I was asking for. I can mess around with the models quite freely, but perfecting the design to a level that is both electrically and mechanically sound is right now beyond me. What you are saying is that this task is such a huge one and requires great skill. Not easy then for your regular Joe ham to do much with the models in a practical way. He/she has to become something of an antenna buff for that to transpire. And because the task is so demanding, no antenna buff would ever consider producing an actual contstruction design for anyone, apart from him/herself maybe. And then he/she might condescend to allow others to copy his/her design. |
"Richard" wrote in message ... I don't know whether I've got the know-how or the time to design a homebrew VHF yagi for the marine band. So, is anyone out there interested in providing a service to all marine band DXers/eavesdroppers of designing and producing *full constructional notes* on a range of marine antennas, and then putting the designs up on a website. I'm going to look at Enzec help files, I suspect I can do my own work starting with a model. Producing full constructional notes should not be difficult. |
Richard wrote:
I can mess around with the models quite freely, but perfecting the design to a level that is both electrically and mechanically sound is right now beyond me. What you are saying is that this task is such a huge one and requires great skill. Not easy then for your regular Joe ham to do much with the models in a practical way. He/she has to become something of an antenna buff for that to transpire. A few years ago, if any amateur got involved in the esoteric art of antenna modelling, it was because he or she was *already* an advanced antenna buff, with lots of hands-on experience of making antennas work. After learning about modelling, with all its tricks and traps, the next challenge was to learn how to translate the models back into workable hardware. But at least that was building a bridge between two solid foundations. Now, it's becoming the other way around - the modelling is more accessible than the hands-on experience. Without that practical experience, translating a model into reality is like building a bridge to nowhere. It isn't "something for someone [else] to do." Someone else can run models for you, but only the person with the hardware in their hands can work out how to build the real thing. However, about the worst you can do is cut the elements to the wrong lengths. The program on my website (see earlier posting) will help, and you should also read all three of the links from that same page. If you come back with a question more like: "I've tried to work out how to do this. Here are the model dimensions, here are my cutting dimensions, and here's why. Does this look reasonable?" then I'm sure you'll get a lot more help. (Coffee mug's empty... back to the window-frames.) -- 73 from Ian G3SEK 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.co.uk/g3sek |
Oh you got me! I've been caught out! I'm listening to the marine band. Shall
I expect the police at my door? Quickly I must hide my apperatus! I think not. I asked a reasonable question, and did not expect a sarcastic response. Please: why is there a need, or an interest, to "eavesdrop" (using your description) on the marine band with a high gain unidirectional antenna? 73, Chip N1IR |
There shall be some kind of balun. Please, please! ==================================== Why? What's the percentage current unbalance on the balanced line when there's a 450-ohm to 50-ohm, balanced to unbalanced junction without a balun? What percentage current unbalance does a typical choke balun reduce unbalance to - - - - - with a receiving antenna ? - - - - with a transmitting antenna ? if there's any difference. --- Reg |
Reg Edwards wrote:
What's the percentage current unbalance on the balanced line when there's a 450-ohm to 50-ohm, balanced to unbalanced junction without a balun? You didn't give enough information for anyone to provide a valid answer, Reg. What is the impedance from the junction looking back toward system ground? If it is three ohms, a balun is necessary. If it is 300 ohms, you can probably get by without a balun. -- 73, Cecil http://www.qsl.net/w5dxp -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
"Cecil Moore" wrote Reg Edwards wrote: What's the percentage current unbalance on the balanced line when there's a 450-ohm to 50-ohm, balanced to unbalanced junction without a balun? You didn't give enough information for anyone to provide a valid answer, Reg. What is the impedance from the junction looking back toward system ground? If it is three ohms, a balun is necessary. If it is 300 ohms, you can probably get by without a balun. OK, so it's 3 ohms. Wot's the percentage unbalance ? Just a number is required. If it's 300 ohms. Wot's the percentage unbalance ? Just another number is required. What are the odds on you providing answers ? ---- Reg |
"Ian White, G3SEK" wrote in message ... Richard wrote: I can mess around with the models quite freely, but perfecting the design to a level that is both electrically and mechanically sound is right now beyond me. What you are saying is that this task is such a huge one and requires great skill. Not easy then for your regular Joe ham to do much with the models in a practical way. He/she has to become something of an antenna buff for that to transpire. A few years ago, if any amateur got involved in the esoteric art of antenna modelling, it was because he or she was *already* an advanced antenna buff, with lots of hands-on experience of making antennas work. After learning about modelling, with all its tricks and traps, the next challenge was to learn how to translate the models back into workable hardware. But at least that was building a bridge between two solid foundations. Now, it's becoming the other way around - the modelling is more accessible than the hands-on experience. Without that practical experience, translating a model into reality is like building a bridge to nowhere. It isn't "something for someone [else] to do." Someone else can run models for you, but only the person with the hardware in their hands can work out how to build the real thing. However, about the worst you can do is cut the elements to the wrong lengths. The program on my website (see earlier posting) will help, and you should also read all three of the links from that same page. If you come back with a question more like: "I've tried to work out how to do this. Here are the model dimensions, here are my cutting dimensions, and here's why. Does this look reasonable?" then I'm sure you'll get a lot more help. (Coffee mug's empty... back to the window-frames.) Okay, well, I'll do some more work on it and come back. When I made my post, I'm not just thinking of myself, others too might have liked to see full constructional notes. That's part of the circumstances (for those (not you Ian) who perhaps cannot have comprehended that). |
Reg Edwards wrote:
"Cecil Moore" wrote Reg Edwards wrote: You didn't give enough information for anyone to provide a valid answer, Reg. What is the impedance from the junction looking back toward system ground? If it is three ohms, a balun is necessary. If it is 300 ohms, you can probably get by without a balun. OK, so it's 3 ohms. Wot's the percentage unbalance ? Just a number is required. How about Ohm's law? 3 ohms in parallel with ??? ohms. I forgot to ask what is the impedance looking in the direction of the load. If it's 300 ohms. Wot's the percentage unbalance ? Just another number is required. How about Ohm's law? 300 ohms in parallel with ??? ohms. -- 73, Cecil http://www.qsl.net/w5dxp -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
On Sat, 05 Jun 2004 15:09:55 -0500, Cecil Moore
wrote: I forgot to ask :-) |
Richard Clark wrote:
wrote: I forgot to ask :-) Richard, I am really glad that you are so omnipotent and omniscient that you never make a mistake of commission or omission. I, OTOH, make a lot of them. -- 73, Cecil http://www.qsl.net/w5dxp -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
"Richard" wrote in message ...
"J. McLaughlin" wrote in message ... Dear Richard - no full name - no call - no location - probably not a real E-mail address: Let me see if I understand: You have the strange idea that someone who has the experience and skill to craft for you an expensive design (for free) is looking for something to do. Strange indeed. Mac N8TT -- J. Mc Laughlin - Michigan USA Home: I bought some "models" from Mr Cebik. This is what he says in his notes: " Although many of the designs may be directly built from the models in this collection, the models themselves are for study purposes. Perfecting the design to a level that permits construction of an antenna that is both electrically and mechanically sound is your responsibility. L. B. Cebik, W4RNL" This is my problem and what I was asking for. I can mess around with the models quite freely, but perfecting the design to a level that is both electrically and mechanically sound is right now beyond me. What you are saying is that this task is such a huge one and requires great skill. Not easy then for your regular Joe ham to do much with the models in a practical way. He/she has to become something of an antenna buff for that to transpire. And because the task is so demanding, no antenna buff would ever consider producing an actual contstruction design for anyone, apart from him/herself maybe. And then he/she might condescend to allow others to copy his/her design. Pore deprived thing. You study some of the mountain of illustrated artcles in the ham literature which show how others have sucessfully put VHF Yagis together to get an education on the various "basement engineering" practical mechanicals they came up with. You run the model based on the materials you have available and the construction scheme you have chosen. You build it. You test it. You tweak it. You put it up again and go SWLing on 162 Mhz. No, you don't have to be an "antenna buff" to do any of it these days. But if you build your own you do have to get off your butt and put a bit of your own mental effort into the matter. Don't hold your breath while hoping that somebody around here will save you from the butt-lift maneuver just because you don't wanna do it yourself. w3rv |
Dear Cec,
Tell you what (an English coloquialism), YOU provide all the information you need to do the calculations and thereby provide some answers. Typical results under typical conditions, plus or minus 15 percent is all that's needed. If you prefer it that way, you can even invent your own questions. === Reg, G4FGQ By the way, I'm on Blue Nun Merlot tonight. Which is nicely appropriate now that Bush and Blair have belatedly come round to the French (and the rest of the World's) point of view. Vive L'entente Cordiale. ===================================== "Cecil Moore" wrote in message ... Richard Clark wrote: wrote: I forgot to ask :-) Richard, I am really glad that you are so omnipotent and omniscient that you never make a mistake of commission or omission. I, OTOH, make a lot of them. -- 73, Cecil http://www.qsl.net/w5dxp -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
Reg Edwards wrote:
Tell you what (an English coloquialism), YOU provide all the information you need to do the calculations and thereby provide some answers. Typical results under typical conditions, plus or minus 15 percent is all that's needed. Reg, the question (assertion) was yours. Now you have to defend it by furnishing the impedance looking back toward the source and the impedance looking toward the load. I can tell you what it is in my antenna system, but not yours or anyone else's. In my system, the impedance looking back toward the source is very low. The impedance looking toward the load is between 25 ohms and 100 ohms. That's an ideal application for a balun. By the way, I'm on Blue Nun Merlot tonight. I just finished off 5 liters of Almaden Cabernet Sauvignon. All I have left in this dry county is Coor's light and Bella Sera Merlot. That Italian wine is not as good as it used to be. They must have changed from wooden barrels to mass produced metal vats. -- 73, Cecil http://www.qsl.net/w5dxp -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
Richard wrote:
I don't know whether I've got the know-how or the time to design a homebrew VHF yagi for the marine band. So, is anyone out there interested in providing a service to all marine band DXers/eavesdroppers of designing and producing *full constructional notes* on a range of marine antennas, and then putting the designs up on a website. All antennas shall principally be for reception. All antennas should be described as covering 156-162Mhz. As far as the yagis are concerned, they should range from 2 to 6 elements. All yagis shall have 4mm (or 3/16") diameter parasitic elements. All parasitic elements shall be secured to boom by nylon rivets as per G3SEK's notes at: http://www.ifwtech.co.uk/g3sek/diy-yagi/#Construction All booms shall consist of either 20mm or 15mm square tubing. The DE for all yagis shall be 8mm (or 5/16"). The DE for all yagis shall be a regular hertz dipole. There shall be some kind of balun. Please, please! There are half a jillion designs already out there. Also in books. All designs can scaled to any other frequency. IE: any 2 meter VHF antenna design can be easily scaled to 160 mhz. Why the rigid construction requirements? If you are scaling a design to another freq, you should also scale the element dia. Luckily, there should be no need to change element diameter for a rescaled 2m antenna, as it's already close enough. I once built a marine band 4 element yagi from a thin copper tube as a boom, and coathanger wire soldered to the boom as the elements. Not the greatest materials, and it eventually rusted, but I could hear stuff that didn't exist on verticals. I'm in Houston, and was listening to marine traffic out towards Galveston, and the gulf. 50-60 plus miles easy... If you have NBS designs, what are you waiting for? Those spacings are quite good enough. They do lean towards max gain vs f/b, but you don't need super f/b with what you are doing. So a NBS design should be fine. "the f/b is still about 10 db" Thats what I used. My 6m beam is also a NBS yagi. All my homebrew yagi's use a driven element grounded to the boom. Also, I use gamma or T matches, etc...I rarely use a split driven element insulated from the boom. It's more work, and I'm lazy...Only my store bought "I didn't pay for it" HF beam is built that way. MK -- http://web.wt.net/~nm5k |
"Mark Keith" wrote in message ... There are half a jillion designs already out there. Also in books. All designs can scaled to any other frequency. IE: any 2 meter VHF antenna design can be easily scaled to 160 mhz. Why the rigid construction requirements? If you are scaling a design to another freq, you should also scale the element dia. Luckily, there should be no need to change element diameter for a rescaled 2m antenna, as it's already close enough. I once built a marine band 4 element yagi from a thin copper tube as a boom, and coathanger wire soldered to the boom as the elements. Not the greatest materials, and it eventually rusted, but I could hear stuff that didn't exist on verticals. I'm in Houston, and was listening to marine traffic out towards Galveston, and the gulf. 50-60 plus miles easy... If you have NBS designs, what are you waiting for? Those spacings are quite good enough. They do lean towards max gain vs f/b, but you don't need super f/b with what you are doing. So a NBS design should be fine. "the f/b is still about 10 db" Thats what I used. My 6m beam is also a NBS yagi. All my homebrew yagi's use a driven element grounded to the boom. Also, I use gamma or T matches, etc...I rarely use a split driven element insulated from the boom. It's more work, and I'm lazy...Only my store bought "I didn't pay for it" HF beam is built that way. MK -- http://web.wt.net/~nm5k Mark If I am prepared to go with other peoples electrical and mechanical designs then there is no doubt my task ought to be easy peasy. And as you say there are zillions of designs out there already.There is a heck of a lot of sense in taking that approach. :c) It's perhaps unfortunate that I was started off by being given a model to run in a program. This may have complicated the approch uneccessarily and taken me away from what was the more sensible approach. So obtaining software models and messing with antenna programs is perhaps rather a redundant exercise. Thanks for driving that home to me. Rich |
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Surely you realize that there are people that listen to things on radio.
Shortwave, VHF, UHF. Military comms, utilities, ect. You do actually participate in the radio hobby, don't you? "Fractenna" wrote in message ... Oh you got me! I've been caught out! I'm listening to the marine band. Shall I expect the police at my door? Quickly I must hide my apperatus! I think not. I asked a reasonable question, and did not expect a sarcastic response. Please: why is there a need, or an interest, to "eavesdrop" (using your description) on the marine band with a high gain unidirectional antenna? 73, Chip N1IR |
Who are you to require an answer?
I am Chip, N1IR. I don't require an answer. I invited one. Who, sir, are you? 73, Chip N1IR |
Surely you realize that there are people that listen to things on radio.
Shortwave, VHF, UHF. Military comms, utilities, ect. You do actually participate in the radio hobby, don't you? No. I do not consider 'radio' a hobby. I appreciate the fact that others do. Amateur radio is a service, for example. I clearly do not understand that eavesdropping on the marine band with a unidirectional antenna is a hobby. I invite Richard to expound its virtues; tell us who does it; tell us how such hobbyists meet; discuss their fun info; and so on. This is a new one, relatively, to me. BTW, I have been a ham since 1966; have won various contests; have DXCC honor Rolls; 8BDXCC (equivalent); #1 DXCC Honor Roll; and so on. I have also done various public service stuff as a ham, BTW. I've been around the pike, so to speak. 73 Chip N1IR |
Surely you realize that there are people that listen to things on radio. Shortwave, VHF, UHF. Military comms, utilities, ect. You do actually participate in the radio hobby, don't you? No. I do not consider 'radio' a hobby. I appreciate the fact that others do. Amateur radio is a service, for example. I clearly do not understand that eavesdropping on the marine band with a unidirectional antenna is a hobby. I invite Richard to expound its virtues; tell us who does it; tell us how such hobbyists meet; discuss their fun info; and so on. This is a new one, relatively, to me. BTW, I have been a ham since 1966; have won various contests; have DXCC honor Rolls; 8BDXCC (equivalent); #1 DXCC Honor Roll; and so on. I have also done various public service stuff as a ham, BTW. I've been around the pike, so to speak. 73 Chip N1IR Before cell phones were widely available, the phone company around here (Belmont, CA) had a phone patch service for marine vhf. I met at least one guy who had a hand held marine vhf radio which he used to carry around so he could make phone calls without having to find a pay phone. I expect monitoring the marine band could get pretty boring, and might get you a charter membership in the dull men's club, but little else. Of course, if you own a boat that's another story. 73, Tom Donaly, KA6RUH |
"Fractenna" wrote No. I do not consider 'radio' a hobby. I appreciate the fact that others do. I clearly do not understand that eavesdropping on the marine band with a unidirectional antenna is a hobby. I invite Richard to expound its virtues; tell us who does it; tell us how such hobbyists meet; discuss their fun info; and so on. This is a new one, relatively, to me. BTW, I have been a ham since 1966; have won various contests; have DXCC honor Rolls; 8BDXCC (equivalent); #1 DXCC Honor Roll; and so on. I have also done various public service stuff as a ham, BTW. I've been around the pike, so to speak. 73 Chip N1IR Not the pike that several thousand hobbyists enjoy, perhaps most of whom are licenced amateurs! Try http://www.wunclub.com/ and really dig around, you'll find that marine listening is a close second only to military aircraft monitoring, maybe commercial aircraft after that. IF the claims about BPL were accurate, it would have such a profound effect on so many major forms of government and commercial communications, that the BPL lifespan might be about a week after full scale exposure. So like yourself, I am watching with open eyes and ears for more tests to prove it's a boon or a bane. 73, Jack Painter Virginia Beach Va |
I expect monitoring the marine band
could get pretty boring, and might get you a charter membership in the dull men's club, but little else. Of course, if you own a boat that's another story. 73, Tom Donaly, KA6RUH That's my anecdotal sense as well, Tom. Hence my natural curiousity as to why someone with an apparent sense of advanced skills would consider this worthwhile, and exhort us to 'benefit a service'. I would still like to 'get it'. I am open to it. I am puzzled why I am not getting an answer from the person who started this thread. Kindly fill us in, Richard. We're friendly. 73, Chip N1IR |
Not the pike that several thousand hobbyists enjoy, perhaps most of whom are
licenced amateurs! Try http://www.wunclub.com/ and really dig around, you'll find that marine listening is a close second only to military aircraft monitoring, maybe commercial aircraft after that. IF the claims about BPL were accurate, it would have such a profound effect on so many major forms of government and commercial communications, that the BPL lifespan might be about a week after full scale exposure. So like yourself, I am watching with open eyes and ears for more tests to prove it's a boon or a bane. 73, Jack Painter Virginia Beach Va The licensed amateur part doesn't sound right, but your link is very helpful. Wouldn't it make more sense to make construction info available on an appropriate site to those who are more likely to see it? Perhaps a newsletter? Trade pub ? Monitoring Times? This request seems to have come out of no where, with no context. It has the appearance of a bait, but that's a personal opinion. 73, Chip N1IR |
Dear J. McLaughlin, self proclaimed newsgroup cop. If you don't know
the answer to his question, why did you bother to answer him? Just wanted to "dig" on him a bit because he didn't post his call? You posted yours and you still came off sounding like a pompous know it all ass. Or was that your intention? On Sat, 5 Jun 2004 09:59:36 -0400, "J. McLaughlin" wrote: Dear Richard - no full name - no call - no location - probably not a real E-mail address: Let me see if I understand: You have the strange idea that someone who has the experience and skill to craft for you an expensive design (for free) is looking for something to do. Strange indeed. Mac N8TT |
You're in your own little world, aren't you?
"Fractenna" wrote in message ... Surely you realize that there are people that listen to things on radio. Shortwave, VHF, UHF. Military comms, utilities, ect. You do actually participate in the radio hobby, don't you? No. I do not consider 'radio' a hobby. I appreciate the fact that others do. Amateur radio is a service, for example. I clearly do not understand that eavesdropping on the marine band with a unidirectional antenna is a hobby. I invite Richard to expound its virtues; tell us who does it; tell us how such hobbyists meet; discuss their fun info; and so on. This is a new one, relatively, to me. BTW, I have been a ham since 1966; have won various contests; have DXCC honor Rolls; 8BDXCC (equivalent); #1 DXCC Honor Roll; and so on. I have also done various public service stuff as a ham, BTW. I've been around the pike, so to speak. 73 Chip N1IR |
CW wrote:
You're in your own little world, aren't you? He's on the small moon Fractanus...A so far, undisclosed moon of the planet Uranus. "The U.S government refuses to acknowledge the existance of the object" A cover up? Fodder for the next Drudge report I suspect... As *most* know, people on the planet Earth listen to everything. "If you broadcast it, he will listen" There are probably people that monitor pager transmissions for obtuse tone variations...:/ People listen to boats, marine phone patches, cabs, police, utility co's, biz radio, airplanes, baby monitors, yada, yada, yada, till the freq range runs out...He surely knows this. I think he just wants to appear above it all....Gives him an opportunity to flash his Fractanal ham radio contest resume...Like that really helps the marine band listener to receive better...:+ Fractanions do not listen to much VHF public service band radio evidently. I guess from that far distance, even the oft touted fractal antenna is useless...:( Been around the pike huh...I guess that makes you a piker... :/ MK -- http://web.wt.net/~nm5k |
Dear J. McLaughlin, self proclaimed newsgroup cop. If you don't know
the answer to his question, why did you bother to answer him? Just wanted to "dig" on him a bit because he didn't post his call? You posted yours and you still came off sounding like a pompous know it all ass. Or was that your intention? On Sat, 5 Jun 2004 09:59:36 -0400, "J. McLaughlin" wrote: Dear Richard - no full name - no call - no location - probably not a real E-mail address: Let me see if I understand: You have the strange idea that someone who has the experience and skill to craft for you an expensive design (for free) is looking for something to do. Strange indeed. Mac N8TT Hmmm, Mac made sense to me. He always does, come to think of it. 73, Chip N1IR |
"Fractenna" wrote
Try http://www.wunclub.com/ and really dig around, you'll find that marine listening is a close second only to military aircraft monitoring, maybe commercial aircraft after that. Wouldn't it make more sense to make construction info available on an appropriate site to those who are more likely to see it? Perhaps a newsletter? Trade pub ? Monitoring Times? This request seems to have come out of no where, with no context. It has the appearance of a bait, but that's a personal opinion. Hi Chip, yes there are websites, monitoring lists and circulars that specialize in utility listening. The WUN is just the biggest, not the only by any means. It has been my experience in the last 12 years of that part of the hobby, that about 90% of the "members" are anonymous non-posters. When the mailing addresses of list members were once public, they included almost every government agency. Monitoring marine safety on VHF and HF by hobbyists has definite public safety benefits very similar to licensed amateur groups such as the Maritime Mobile Net that works 14.300 mHz. The post may have been bait, and most of us would have chosen a little different form of explanation of what/where/why, etc. But there are very few affordable antennas manufactured for the bands commonly referred to as "Utility" (non-ham bands), and this is a logical place to ask for help in that area. 73, Jack Painter Virginia Beach, Va |
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