There is one thing has been bothering me for a while and I am sure there are some knowledgable people here who can explain this. * - Lowest dial setting for LSB Voice mode: 1843, 3603 and 7053 kHz* B
Author: Richard DiDonna NN3W <richnn3w@verizon.net>
Date: Wed, 03 Oct 2012 13:25:48 -0400
* - Lowest dial setting for LSB Voice mode: 1843, 3603 and 7053 kHz* But it does not mention the highest dial setting for USB on 20-10 meters. So is it allowed to work USB on 14349 what concerns the
If your SSB signal is 3 kHz wide... And the top of 20 meters is 14.350 MHz... And you don't want any of your signal to be transmitted above the top of the band... Then your highest dial setting on a
Suppressed carrier (dial frequency) should be at least 3kHz away from the SSB band edge. On 20m USB that would be 14.347 73, de Hans, K0HB -- "Just a boy and his radio" -- Proud Member of: A1 Operato
The following applies to amateur radio operators in the United States, quoted directly from the FCC regulations: 97.307(b) Emissions resulting from modulation must be confined to the band or segment
The US regulations require our signals to be contained within the designated band limits. As an example, 14.150 ~ 14.350 MHz. A transceiver typically displays the suppressed carrier frequency. Let's
Suppressed carrier (dial frequency) should be at least 3kHz away from the SSB band edge. On 20m USB that would be 14.347>> The highest frequency in an ideal transmitter is the highest audio tone pass
In SSB modes, an amateur transceiver's dial reading is the suppressed carrier frequency, not the actual transmitted frequencies. If your radio's dial is on 14349 USB and you speak into the microphone
Corrected to 14247 to 14347. No need to make 20 meters any smaller than it already is ! -- The following applies to amateur radio operators in the United States, quoted directly from the FCC regulati
Just some comments. Regarding the LSB (and LSB was specifically mentioned) limit, if some signal gets out below the phone band limit, it is still in a ham band and does not interfere with other servi
Just some comments. Regarding the LSB (and LSB was specifically mentioned) limit, if some signal gets out below the phone band limit, it is still in a ham band and does not interfere with other servi
- If my station is operating on USB, with a typical 3 dB transmit bandwidth of 2.7 kHz, then virtually all of the power of my fundamental emission is above my suppressed carrier frequency, and extend
Tom: You are absolutely correct, and I was not suggesting its OK to operate with emissions outside the phone band. I was just trying to address Tõnno's question as to why the ITU R1 band plan specifi
No. What do you mean, "No" ? Go back and reread what I said. Especially the part "at least 2.7 kHz above my suppressed carrier frequency". Your explanation completely validates what I said. You also
What a nice and overwhelming response to my question and all is clear now. Thank you guys. I just did not know the term supressed carrier. Thus the definition clearly stresses that no part of the sig
Go back and reread what I said. Especially the part "at least 2.7 kHz above my suppressed carrier frequency". Your explanation completely validates what I said. You also conveniently edited-out my la
If your SSB signal is 3 kHz wide... And the top of 20 meters is 14.350 MHz... And you don't want any of your signal to be transmitted above the top of the band... Then your highest dial setting on a
For United States amateurs, this is a legal, not a band plan issue. Operating USB on 14151 does not violate the FCC rules. Operating USB on 14348 does violate the FCC rules. The CQWW rules do not spe
Unless you switched to LSB when you went to 14150, your receiver was receiving for a ~3 kHz bandwidth above the frequency on your dial. So, when you're on 14149 (for example) your ~3 KHz receiver ban
It is not that they are transmitting below 14.150, it's that you're listening above 14.150. Of course! Excellent point! And I guess perhaps there was a bit of splatter too from a couple of big statio