REGISTER | LOGIN
Breaking News
Comments
Newest First | Oldest First | Threaded View
Page 1 / 2   >   >>
Jean-Luc.Suchail
User Rank
Author
re: How to design a traditional radio
Jean-Luc.Suchail   7/18/2017 12:17:54 PM
NO RATINGS
Yes but the discussion gets away from the subject. A trditional radio is likely to be inspired from Armstrong, the superheterodyne (also inventor of Frequency Modulation).

I have a SDR transceiver (IC7300) excellent but far away fron "traditional"... By the way I am rebuilding an old AM receiver from 1925, but what for as amm AM MW/LW stations are closing down, stupidly threatened by people accusing them the be dangerous for health, what a band of incompetent...

sharps_eng
User Rank
Author
re: How to design a traditional radio
sharps_eng   1/13/2012 9:35:44 PM
NO RATINGS
I never got into amateur radio, it was radio control that interested me initially, then electronic music, then pro audio, then microprocessors. Kids today might be interested in making remote-controlled gadgets, especially if they can connect to their phone or PC, and control from that wirelessly. Everyone has wireless data with phones and wifi networks and wii, but local small-scale control of toys is pretty thrilling stuff when you have built it yourself! As we all know, with a proper hobby, it is the journey as much as the arrival!

WKetel
User Rank
Author
re: How to design a traditional radio
WKetel   10/5/2011 12:50:17 PM
NO RATINGS
The radio described here is still a digitally tuned radio, except that an encoder input is used instead of up and down buttons. It still tunes in steps instead of continuous tuning, which renders it unsuitable for other than broadcast channel listening. The comparisons to prior full analog radios are way off in the negative remarks, except they would apply to the minimum cost, bottom level radios. Many of the earlier generation linear circuit receivers delivered performance far exceeding anything that this IC could ever even possibly provide, all without a single digital component. From the description given, the primary benefit of using this particular device is that it is much cheaper than any other way of making a radio. An article describing the benefits and capabilities of a device could be interesting and worthwhile, but disparaging previous technology, and comparing it's performance to cheap junk does not add to the value of this article at all.

boob
User Rank
Author
re: How to design a traditional radio
boob   10/5/2011 8:20:45 AM
NO RATINGS
how do design a simple radio? This is just another article pushing a chip of course with no useful design content. Why not just title it with si-labs and say you can make a simple to design radio with the chip? The problem with all these silicon radio chips is that the support is rubbish/zero if you are less than 500k units pa. So if you are not designing a mass market product you have little differentiation...everyone is the same. And you can't do anything that is not obvious in the datasheet. If you run into a problem (say sensitivity due to an interaction with your input circuit) you often have no clue what is in the chip and nobody will take the time to talk to you for your small 50k business. So designing with discrete parts and multiple ICs will always be required for products that are not mass market and want to differentiate. And what happens when you want to get hold of signal to do something other than AM in the MW band, or FM in the VHF band.....its all locked inside.

Jean-Luc.Suchail
User Rank
Author
re: How to design a traditional radio
Jean-Luc.Suchail   10/5/2011 7:43:08 AM
NO RATINGS
My first radio, 40 years ago (I was 10) was a Reflex type 3 transistors. But the selectivity was very bad. So I made a superheterodyne a few months later with 4 transistors (2xBF194 + 2xBC148). Nothing fancy but very good working for MW and LW. The only trick was to adjust properly the padding and trimmers of the double variable varable capacitor. These were good times when I became Ham Radio. I am still, having fun with high power tubes, but young guys do not even know what a tetrode is....

Bill_Higdon
User Rank
Author
re: How to design a traditional radio
Bill_Higdon   10/5/2011 12:39:29 AM
NO RATINGS
From what I've seen one problem with all of the "new" radio chips is they can't handle CW

old account Frank Eory
User Rank
Author
re: How to design a traditional radio
old account Frank Eory   10/3/2011 6:52:27 PM
NO RATINGS
Agreed. Not much real design info here.

Bert22306
User Rank
Author
re: How to design a traditional radio
Bert22306   9/30/2011 10:56:18 PM
NO RATINGS
Or, you can try something like the Logitech Squeezebox Radio.

Bert22306
User Rank
Author
re: How to design a traditional radio
Bert22306   9/30/2011 10:40:37 PM
NO RATINGS
My "simple design" for an Internet radio was to dedicate a PC to my audio/TV system. I got a slim design, designed to be mounted vertically or horizontally, and it looks just like any other stereo system component when mounted horizontally. Its monitor is the HDTV set (which has an RGB input, as well as HDMI, and I use RGB). PC audio, via mini-phone plug, goes to the stereo preamp, amp, speakers. Keyboard and mouse are wireless. Broadband Internet connection is 802.11n (wireless). There you go. You can listen to any streaming radio or watch any streaming TV, sound is great, image is great, and you have complete flexibility. Once you've set up your favorites, with the wireless keyboard, all the radio or TV "tuning" can be done with the mouse only. No more difficult than using a typical TV remote. Drag it on the couch next to you. Piece of cake.

DrFPGA
User Rank
Author
re: How to design a traditional radio
DrFPGA   9/30/2011 10:18:07 PM
NO RATINGS
What I want is a simple internet radio to get streaming stations. Anyone have a simple design?

Page 1 / 2   >   >>


Like Us on Facebook
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Martin Rowe

Test Tool Finds Ethernet Wiring Errors
Martin Rowe
Post a comment
When my house was renovated several years ago, I had the electrician install network outlets in numerous places, then run the LAN cables to a wiring closet. But he didn't document the ends ...

Martin Rowe

Local Electronics Store Supplies Engineers and Hobbyists
Martin Rowe
5 comments
Rochester, N.Y. — Tucked away in this western New York city known for its optics is Goldcrest Electronics, a local store that's supplied businesses and individuals with electronic ...

Martin Rowe

How to Transform a Technology University (Book Review)
Martin Rowe
1 Comment
The Presiding Genius of the Place by Alison Chisolm. WPI, Worcester, Mass., 234 pp., 2016. Engineers love to discuss, and often criticize, engineering education. They often claim ...

Max Maxfield

Aloha from EEWeb
Max Maxfield
Post a comment
Just a few minutes ago as I pen these words, I posted this blog about this month's Cartoon Punchline Competition over on EEWeb.com.