[Boatanchors] SSB and carrier insertion?

[Garey Barrell]

Eugene -

I think what the author was "trying" to say was that IF you are running 
SSB (Suppressed Carrier assumed), that the carrier must be suppressed at 
least 40 dB.

There are AM transmitters that transmit only one audio sideband with 
carrier and still others that transmit audio on one sideband and 
different audio on the other sideband. 

Since the amateur bands aren't divided by bandwidth, (yet,) either one 
or two sidebands with carrier are both "legal".

73, Garey - K4OAH
Atlanta

Drake C-Line Service Manual
<http://hr99.home.mindspring.com/R-4C_Servicez/>



Eugene Hertz wrote:

>Here's my question. I've begun studying for my general and I read in the arrl book that inserting a carrier with one side band in not a legal emission. Is that right? Could I have misread this? If I read that right, can anyone explain why if DSB with carrier (am) is allowed and LSB and USB without carrier, why wouldnt LSB-C or USB-C (with carrier) be allowed? 
>
>As soon as I get my general and code passed, my transmitter is a central electronics 100V (courtesy W0YVA). This radio has SSB and also SSB with carrier inserted modes (also has PM, AM, FSK, you name it!) and I began to wonder was this kind of emission legal at one time (radio was made around 1959) ? Does any one know when/why it became illegal? 
>
>Also, what would be the benefit of running SSB with carrier? Does it make the signal more easily detected? say, without the need for a product detector, but just a BFO? 
>
>Thanks in advance (for being patient with all my questions!) 
>Eugene 
>KC2NWG
>  
>