Hey, I really need a circuit schematic for a simple low power (under 3.5V) FM radio using the TA2003P IC.
Posted by Unknown... 9 years ago | last reply 9 years ago
I found an old portable sterio but the cd player and tape deck did not work but the radio did so i took the pc board out that has the radio guts on but now im lost the wires coming out of it say s/m rch lch gnd +B Has anyone got a clue what thease mean im guessing rch and lch is right and left chanal for the speakers but the s/m and +b is throughing me
Asked by nonamesleft 8 years ago | last reply 8 years ago
I have a satellite radio. Got it from World space satellite radio inc. Since it got bankrupt in India , i cant avail any service. 1.Can i reuse it by subscribing to other company 2.Can i use it for some other technology eg. use it as local receiver. say something compatible with the frequencies that satellite radio use.
Posted by jagmeetsinghsaluja 8 years ago | last reply 8 years ago
So, I started playing around with nowlive, it's a website that lets you host a free internet radio station. Pretty neat. Anyways, I just finished up my first official broadcast..and wanted to let any of you who like the idea of being a dj know.My station's site: http://Weissensteinburg.com/radioNowlive: http://NowLive.com
Posted by Weissensteinburg 11 years ago | last reply 11 years ago
Nanotube Radio: Supplementary materialsK. Jensen, J. Weldon, H. Garcia, and A. ZettlDepartment of Physics, University of California at BerkeleyCenter of Integrated Nanomechanical Systems, University of California at BerkeleyMaterials Sciences Division, Lawrence Berkeley National LaboratoryBerkeley, CA 94720, U.S.A.We have constructed a fully functional, fully integrated radio receiver, orders-of-magnitude smaller than any previous radio, from a single carbon nanotube. The single nanotube serves, at once, as all major components of a radio: antenna, tuner, amplifier, and demodulator. Moreover, the antenna and tuner are implemented in a radically different manner than traditional radios, receiving signals via high frequency mechanical vibrations of the nanotube rather than through traditional electrical means. We have already used the nanotube radio to receive and play music from FM radio transmissions such as Layla by Eric Clapton (Derek and the Dominos) and the Beach Boy's Good Vibrations. The nanotube radio's extremely small size could enable radical new applications such as radio controlled devices small enough to exist in the human bloodstream, or simply smaller, cheaper, and more efficient wireless devices such as cellular phones....This is the site of the original article
Posted by Goodhart 10 years ago | last reply 10 years ago
I am going to be taking an amateur radio course early 2010 (Foundation level). I am interested in summits on the air - http://www.sota.org.uk. I want to build a small aerial that could be packed away into a small section of PVC pipe. I have found the 2m 1/4 wave ground plane thesurvivalpodcast.com/forum/index.php - this design keeps coming up. Any help, suggestions, ideas etc gladly accepted. Also anything else you want to tell a budding radio HAM; hints, tips etc.
Asked by DELETED_zoltzerino 9 years ago | last reply 7 years ago
Hi everybody,First off all , i'm new on this forum.My english isn't very good.problem:i have a stereo with cable to listen to fm frequenties.the signal i get isn't a real good quality and a lot of unwanted noise like when your on frequentie that doesn't have a signal.there is somewhere on this site an answer , but i can't find it.help meit hase a cable , for a tv but with a big fiche, not like one from in my garage where the signal enters the house.view link: http://images.google.be/imgres?imgurl=http://www.onderdelenshopwell.nl/images/CX100.jpg&imgrefurl;=http://www.onderdelenshopwell.nl/index.php%3FcPath%3D321_195_196_200%26osCsid%3D92c89f32f06944444801c91dc492298b&h;=219&w;=283&sz;=9&hl;=nl&start;=18&um;=1&tbnid;=ssMePrqA9WHgHM:&tbnh;=88&tbnw;=114&prev;=/images%3Fq%3Dcoax%26svnum%3D10%26um%3D1%26hl%3Dnl%26sa%3DNits a pannasonic sa-ak330
Posted by alex4421 11 years ago | last reply 11 years ago
Hey im trying to modify my cars radio to have an aux input using the CD players audio hookup to the main IC. i cant find any datasheets on any of these ic's if i had them i would be just fine. are the black wires that come from the CD player the audio signal wires? if they are could i easily just splice into that circuit?
Asked by the_burrito_master 6 years ago | last reply 6 years ago
I am going to be taking an amateur radio course early next year (foundation level). I have been doing a little research into the subject and I am baffled by the terminology / acronyms. I'm sure I'll learn all that when the time comes. At the moment I am interested in cheap kits / second-hand gear and instructions on how to make a small, portable aerial for 2m (144MHz) operation for www.sota.org.uk. Any other information is gladly accepted. What is CQ, SSB, CW, QSL? etc.
Asked by DELETED_zoltzerino 9 years ago | last reply 7 years ago
I would like to mod a handheld radio (or even a analogue tv but radio would be better) to get to listen to higher frequencies than normally available. I'd Like to hit the 1420Mhz mark approximately but with little electrical engineering or architecture experience, I'm not certain how? Which might make a TV easier to get there as UHF covers that right? (still safer to play with a battery powered radio than a 240V powered one) I figured there is someone out there with the ability to figure out what components need changing? The variable resistor that tunes it perhaps? If you'd rather post an instructable I'll follow that or just tell me what needs replacing with what? Any Ideas?? Thanks
Asked by Mr E Man 5 years ago | last reply 4 years ago
I have a philco radio from 19 42. its model: number is 42-1008. i need schematics for it and i cant find any. the only place i found them was herehttp://www.radiomuseum.org/r/philco_42_1008.html . and i have to be a member to view them which i am not.....help
Posted by Sun Gear 9 years ago | last reply 9 years ago
Hi everyone, i'm completely new here, and have had a good look around, anbd a quick look on these forums, and I have a question, which I am sure has been asked before but I couldnt find it.... What is the English equivilent (sp?) of Radio Shack? I can't seem to think of anywhere, at least near me, that sells electronic components and such such.. Thanks BBD
Posted by BBDM 12 years ago | last reply 12 years ago
I have scoured the internet in search of directions, how to guides, or schematics for an amateur radio (ham radio). However, I can't find anything of the sort. All I can find is pages of "hams" showing off their equipment or pages linking to the same thing. Does anybody have a good simple schematic for a ham radio receiver or transmitter. If not, does anybody know where I can find one?
Posted by gimmelotsarobots 9 years ago | last reply 7 years ago
I love baseball. I want to watch the World Series on TV, but I don't want to listen to the TV announcers. I want to listen to the radio broadcast instead.* Problem is, the "live" TV arrives 1-2 seconds after the radio. Which means I hear about the deep flyball to left before I see it. And that takes the fun out of watching the game. So, I'm wondering if I can add an adjustable delay to the sound from my radio, to sync up with the picture. I can sacrifice a boom box or other radio for this if nec. Or some other solution? (I can record both and sync 'em up later using video editing software, but that's not practical). * for baseball fans: it's the choice between the Buck/McCarver team (perfectly boring & perfectly obnoxious) and Jon Miller/Joe Morgan radio team (passionate and fun).
Asked by willz 8 years ago | last reply 8 years ago
I am training in information to get into HAM radio... however, what kind of equipment is used? I looked up "HAM RADIO STARTER KIT" and differnet like phrases to see what I would be looking at... but simply cannot find anything. I assume its because your not supposed to purchase any of the stuff unless your licenced. I want to get in but I don't know where to start... and if after I start if I can afford it. Where can I learn the stuff thats on the test? I don't want to BUY a book, I have never seen any topic that didn't have soo little stuff under google. I mean I have been looking under "Amature Radio" and "HAM Radio" and getting certified and everyone wants to sell a book.
Posted by teamcoltra 10 years ago | last reply 8 years ago
Any one know how to build a super antenna for pulling in AM signals from far distances i live in the boondocks and AM radio reception is lousy at best i've tried rigging up standard wire antenna and wound my own various contraptions nothing seems to pull the signal in stronger it comes in fair during the day but at night almost nothing but skipping and noise ... Any Suggestions Thanks
Posted by fretted 6 years ago | last reply 6 years ago
Hey guys, I work for a radio station that has the idea of recycling old personal walkmen and connecting them to old hi fi speakers and containing them in a small box and strategically placing them around the city center, at bus stops etc. I was wondering if anyone would know how to do this, especially at a low cost (preferably with old parts) and without needing an amp? is this possible? Thanks, Tony :)
Posted by tonycraig 8 years ago | last reply 8 years ago
I have a 2012 Kia Soul, base model, with the factory installed radio. I also have two children who always 'need' the radio station changed. Does any one know if you can purchase, if so where, a remote the radio? I am a single mother so don't want to get involved with replacing the radio just to have a remote. I was just hoping that there would be an easy out for me, lol. Thank you
Asked by kloenikole36 5 years ago
Are there any ideas out there for building an FM antenna booster that can be used with the usual whip antenna that comes built into most radios these days. Most of the radios are made in such a way that it is difficult to get at the internal wiring, so the booster would have to be an external unit.
Posted by youri 11 years ago | last reply 11 years ago
I want to re-fit this radio cabinet with some type of sound system. I want to preserve, or transform the display glass, and I want the knobs on the front to activate some functions (volume, tuning perhaps) I want to put some very understated LED light behind the front pillars and redo the bamboo screen. I am just not sure which way to go with it. I could use a car system and 12 volt adapter system of some kind, but I would really like it all to plug in with just one plug. I need ideas.
Posted by geckodfw 6 years ago | last reply 6 years ago
I've been thinking about making a FPV RC (first person view) plane and I was wondering about using Xbee and Ardunio. I was thinking have an Arduino on the ground and another one in the plane each one with an Xbee. I want to have joysticks, buttons and switches on the ground to control at least 4 servos, one or two ESC's and possibly other things (like LED's and retractable landing gear) in the plane and also have a camera and some sensors (altitude, battery level, ECT) in the plane sending video and data back to earth where it can be displayed. I am quite new to electronics and I just want to know if what I said is possible, if there is an easier/cheaper way, how one might go about doing it and if that's even how you use an Xbee. Thanks for any help, it will be greatly appreciated
Asked by monty324 5 years ago | last reply 5 years ago
Asked by thanec 9 years ago | last reply 9 years ago
Please tell me How to make a radio telescope (With simpleTools )?
Asked by sky777 9 years ago | last reply 9 years ago
I need help building a 27MHZ 2-way radio, as the title suggests. I really want to build one so I can learn more about how radios work. And it has to be 27MHZ. I would also prefer the transmitter and receiver to be separate circuits, so there would be multiple uses for this. Thanks in advance, Dan
Asked by DanielB12 4 years ago | last reply 4 years ago
I have a battery that is dead inside a mini portable Bluetooth Radio, the radio can work only plugged for few minutes, then it turns OFF, a radio assistant says : "please recharge your battery"!!. As it is a Chinese product, i couldn't find this type of battery, i've taken out the battery and plug the radio directly to the adapter, the radio runs for 1.5 seconds then is turns off!! then a loop like this runs endlessly! so am wondering if there is any way to remove the battery element completely and use the Radio only with cable.
Asked by Bouzenzel 2 years ago | last reply 2 years ago
Does anybody know how to make a set of voice operated rider to rider radios that can fit inside a crash helmet? im a real noob with electronics but im slowly learning, i can make an led flash and a buzzer sound and by the morning should be upto speed with a number of gate types. im on firstname.lastname@example.org help!!?
Asked by SAPPERSTICKY 9 years ago
I am making this FM bug: https://www.instructables.com/id/FM-Listening-Bug-Kit/ . I decided that I would use this instructable as my first PCB creation. However, I read that the copper creates small capacitors and would ruin the circuit. Would this be a problem on PCB?
Asked by seraine 6 years ago | last reply 6 years ago
I'm fairly new to ham radio but I saw this and thought maybe I could use a 7MHz oscillator and a large antenna to use as a ham radio transmitter. Is this possible? If not, what could I do/use on the cheap as a ham radio transmitter/transceiver? Thanks, fusorx
Asked by fusorx 6 years ago | last reply 6 years ago
Long-time friend of Instructables Tim Anderson was recently profiled on radio station KALW. Didn't catch the show? No worries, you can listen to his interview here: http://www.kalw.org/post/tim-anderson-bay-area-diy-superhero
Posted by kazmataz 6 years ago | last reply 6 years ago
`A buddy and I have portable Citizen Band Radios and we were kinda wondering what cool stuff we could do with it. Also we want to try and build a simple Relay tower to be able to talk to extend the signal. How would we go about doing this?
Posted by Incelism 11 years ago | last reply 6 years ago
I need to track my dog, and i would like to do it with a radio tracking system, but since im a DIY guy i dont care to buy it, (only to examin it if necessary ;)) and i would like it to have a needle indicator, is that possible? have used the last motnh searching the net for at tips and inspiration for the tracking system. Sebastian
Asked by boiken 8 years ago | last reply 7 years ago
I am building a floating radio to take on a float trip. I do not know much about power usage. I was going to use a car or deep well battery for power. I was wanting to run (4)-6X9 speakers, a amp, a 10" sub, and possibly some LED lights that would beat with the music that could be shut off during the day. Is this to much drain on the battery? The float lasts all day and I was concerned about draining the battery before the trip was over. I was told by the local Marine shop that once I start adding amps andor subs the power would drain much quicker. Any suggestions on stereo, speaker, sub, amp, size or the number of things I could run would be appreciated.
Asked by rodsteryz 8 years ago | last reply 8 years ago
Hi i have a problem i need device for sending(transmitting and receiving) radio waves with data(binary code or hex code) and receive it. what material i need?and how to send data with this board.could i use raspberry pi? i need to boost this signal for 100 km and more .
Asked by HosseinJ4 2 years ago | last reply 2 years ago
Every time I take my hand away from my alarm clock radio there is static. Some times people walk in front of it there is static there.
Asked by pheonix10 5 years ago | last reply 5 years ago
I want to receive some sort of satellite signal with a radio and then use the data I receive to control a pneumatic system to replicate a heart beating. I have been talking around with some people who know a bit about radios and the such but haven't gotten much conclusive help. I would like to build as much of this as I can myself, the entire radio and everything, though I only have about a month to do it. A DIY radio kit paired with an Arduino might be the answer due to time restraints. What i've learned so far is that I probably want it to be a tunable AM radio. Whether or not I should build that myself from scratch, build a DIY kit, or just purchase one, I am not sure. How to then interface that into a system to then control a pneumatic system, I have no idea other than the obvious arduino. Lastly, I don't need any special signal from the satellite. I really just need to receive a voltage from the radio. Though, hooking into a satellite with an onboard atomic clock so that i can then display the time as well would be great. I am going to keep doing research, though if anyone here can lend a helping hand I would be very appreciative!
Posted by dlandry2 3 years ago | last reply 3 years ago
In New York City, a Radio Shack exploded this morning. Well, to be more accurate, the sidewalk right in front of it exploded. A manhole explosion led to a transformer catching fire which led to 100 people being evacuated. So far, it looks like nobody was hurt, which is pretty amazing. But still, a "manhole explosion"? They just explode now? I thought that only happened in Die Hard. Link
Posted by fungus amungus 9 years ago | last reply 8 years ago
How to create something for transmitting and receiving radio waves with data(binary code or hex code) for a long range and work with pc? or what material(device) i need for doing it. if have a idea write it. thanks in advance
Asked by HosseinJ4 2 years ago | last reply 2 years ago
I have a set of walkie-talkie radios that I keep stored in their charging base, the base is unplugged and the wire is coiled, there are no headsets attached to the radios, and they are always off, they are motorola 23-mile range radios, this information might be relevant, but here's where it gets weird. For two days one of them would emit a constant hum for about 2 minutes, then stop, then it would start again about 30 seconds later. The hum got slightly louder as you got closer, but seemed to be coming from everywhere, making it very hard to track down, . Remember, there was no power to either radio, and the power switches were off. Does anyone know how on earth this might have occured?Because this might make a fun prank if I can figure out how it happened
Asked by inspectorgadget895 6 years ago | last reply 6 years ago