Below 29 mhz you can only use narrow band fm.On my rig fm changes to narrow on xmit and receive both automaticly.Is Narrow/Wide FM a setting for the transmitter and the receiver, or just the receiver?
What is the difference and what works better in different situations?
tnx
Is this because they're switching to digital as opposed to analog and the audio frequency range just isn't there in digital mode so there is no call for wfm?You don't have much choice anymore. NFM is the one to use, at least in this country, that was changed several years ago, now mandatory. For normal voice, NFM works just fine. If you're going to do music (commercial stations) would benefit from WFM, but that's really about it. Most other services have gone to NFM too.
- 'Doc
Is this because they're switching to digital as opposed to analog and the audio frequency range just isn't there in digital mode so there is no call for wfm?
If you bother to re-read my last post was asking about the commercial portion of W5LZ's post and not about the rinky dink portion of the amateur spectrum.I think this started to happened several years before things started to move to digital. I believe it was to allow more efficient use of the spectrum by allowing more stations to use the same amount of bandwidth.
If you bother to re-read my last post was asking about the commercial portion of W5LZ's post and not about the rinky dink portion of the amateur spectrum.
That's why I asked w5lz and not you and nothing you've said up to this point answers my posted question so crawl back under your rock.And if you would read what was actually written you would see that I made no reference to amateur radio but was answering based on what COMMERCIAL FM radios, meaning commercial BUSINESS radios and not BROADCASTING,has done. Using the word "commercial" can and does mean "business" while the word "broadcasting" means just that. Don't jump on ME just becauseYOU don't know something.
BTW BROADCAST FM radio can operate with a much narrower bandwidth and still sound good. North America is about the only place that still uses a really wide bandwidth. Most other countries switched to a much narrower spacing for exactly the reason I stated in my first post above, more stations in the same bandwidth. I think it is around 50 KHz or so instead of the 200 KHz spacing we use. I remember listening to FM stations while overseas that would be on like 89.15 or 92.25 MHz. Then again the AM stations in those same countries use 9 KHz spacing instead of 10 KHz. It is odd listening to an AM station on 1314 or 585 KHz.
And if you would read what was actually written you would see that I made no reference to amateur radio but was answering based on what COMMERCIAL FM radios, meaning commercial BUSINESS radios and not BROADCASTING,has done. Using the word "commercial" can and does mean "business" while the word "broadcasting" means just that. Don't jump on ME just becauseYOU don't know something.
BTW BROADCAST FM radio can operate with a much narrower bandwidth and still sound good. North America is about the only place that still uses a really wide bandwidth. Most other countries switched to a much narrower spacing for exactly the reason I stated in my first post above, more stations in the same bandwidth. I think it is around 50 KHz or so instead of the 200 KHz spacing we use. I remember listening to FM stations while overseas that would be on like 89.15 or 92.25 MHz. Then again the AM stations in those same countries use 9 KHz spacing instead of 10 KHz. It is odd listening to an AM station on 1314 or 585 KHz.
You don't have much choice anymore. NFM is the one to use, at least in this country, that was changed several years ago, now mandatory.
That's why I asked w5lz and not you and nothing you've said up to this point answers my posted question so crawl back under your rock.
And btw all the commercial FM stations here sound like dog shit compared to the old analog stations so you're wrong in that respect also.
It's in the ears of the beholder.
If it's just for voice type stuff, NFM works just fine, since the normal frequency range of 'voice' is narrower than for 'music'..
- 'Doc