SmokChsr
Who let the magic smoke out?
Premium
join:2006-03-17
Saint Augustine, FL
| A silly SSB Question
Ok I've looked just about every where I can think of and haven't found which sideband is normally used in each band. I remember sometime way back another Ham telling me something like USB 40M and above and LSB below. Tonight I tried working in 160M and 80M and both of those bands I found people using LSB.
I figure those that normally work this stuff know off the top of their head. Me, being new to HF, has no idea. |
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n_w95482
Premium
join:2005-08-03
Ukiah, CA
| I noticed during Field Day that the Kenwood I used most of the time defaulted to LSB for 80 and I think 40, and USB for 20 and 15. I couldn't remember anything about it from when I last studied and I couldn't seem to find anything about it on the internet (then again I was half asleep  ).
I asked about it the next morning and I was told that it's kind of a tradition/habit that people do, but not set in stone. They told me to sweep the bands on both LSB and USB and I could possibly find more contacts. I ended up leaving the radio on its defaults, I had more than enough work to do on one sideband.
If I recall, I think the only one that it does matter on is 60 meter, and it has to be USB.
I could be completely wrong about all of that, if so, someone please tell me because I would really like to know for next time.
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n1zuk
My wood is stacked
Premium
join:2001-10-24
South Burlington, VT
 ·Future Nine Corpor..
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| said by n_w95482  :I noticed during Field Day that the Kenwood I used most of the time defaulted to LSB for 80 and I think 40, and USB for 20 and 15. I asked about it the next morning and I was told that it's kind of a tradition/habit that people do, but not set in stone. If I recall, I think the only one that it does matter on is 60 meter, and it has to be USB. You are correct. Other than 60M (where the permitted frequencies are "channelized" by FCC rules), there are no specified rules for USB/LSB on HF frequencies.
Similar to band plans, the use of which sideband falls into that general FCC catch all "in accordance to good operating practices..."
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n2jtx
join:2001-01-13
Glen Head, NY
·Optimum Online
| reply to SmokChsr
The "tradition" of LSB below 10MHz and USB above 10MHz goes back to the early days of SSB. The early rigs had relatively simple circuitry and an IF of 10.7MHz. Basically these rigs passed the lower sideband below the IF frequency and the upper sideband above the IF frequency. There was no option to choose a particular sideband like there is now. That limitation has become the standard. 60m is different because that mode is legislated by the FCC at the request of NTIA. No LSB, AM, CW or any other mode allowed.
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GeekNJ
Premium
join:2000-09-23
Waldwick, NJ
| reply to SmokChsr
"normal" is above 40m it is USB so 30m, 20m, 10m, 6m, 2m, etc are USB.
40m and below is LSB so 40m, 80m & 160m are LSB.
60m as noted previously is only USB.
Now I guess you can operate on a different side (other then 60m) then what is listed above, but I don't think you'd have a lot of folks telling you that your rig was on the wrong sideband.
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SmokChsr
Who let the magic smoke out?
Premium
join:2006-03-17
Saint Augustine, FL
| reply to SmokChsr
Thanks Everyone,
It just makes it a little bit easier to find what you're looking for if you know what your looking for. Last night I went out and played on 160M and was able to hear a group in Tennessee working, they heard me a couple times but weren't able to pull me out. Then I was finally about to make an HF contact on 80M on 3.880 with some people working a Florida net. I was using a folded unipole on a 380' tower. Some how even though I was able to tune it up, I don't think it was working too well since when I disconnected from the antenna I was still about to here the group I was talking too just from the coax. So now my next project will be to build a real antenna. |
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SirMeowmix_III
@windstream.net
| reply to SmokChsr
As others stated, above 40m it's USB, 40m and below is LSB however there is a net which meets on 40 meters using older military equipment which does not run LSB, only USB. So if you hear them be kind. I've stumbled across them once and could hear the upper sideband while on LSB, switched to USB, and heard them fine. I made sure not to QRM when I was running LSB. There may be other exceptions like this as well.
Also, give the AM guys lots of room. When on SSB if I hear a carrier and can hear the USB/LSB I know they're AM and give 'em some room. The TS-530S I run as a base station doesn't have AM. Had to run out to my car (FT-900) one day to work Mexico calling CQ AM; first AM contact on 25W  |
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