18.168 MHz

[KD8FYI]

Yes, they are. However, the upper and lower band limits are codified into law. No getting around that one.

Nice try.

All they have to tell the FCC is that the band limit is is 18.168 mhz and their VFO read 18.168 mhz too.


I know. I know.


73,

Ed.

[N5AL]

if their dial was on 3999 and in lsb all their rf would be under 3998.7, nothing at all would be transmitted above 4000 asuming their transievers where in specs, I'm not sure but I suspect what you noticed that you could dail to nearly 4002 lsb and still hear evidence of their signal because at that point your reciever was still partly under 3999, maybe drawing the relation to modulation and dail in lsb and usb might help you understand this better.

Good point, I guess he could tune his receiver to 4000 khz usb and verify that no signal is heard.

[W3WN]

Where's a Popkin-gram when you need one these days?

[AC0FP]

I don't mean to be the frequency police but it's interesting sitting here working on my tax return and listening to A71AM in Qatar happily working plenty of North Americans and Europeans on (suppressed carrier frequency) 18.168 MHz USB. Not one has said anything like "You're out of the band!".

What type of rig are you using to tell whether they are in band or not?

[KT1F]

What type of rig are you using to tell whether they are in band or not?

Elecraft K3. I checked WWV to make sure the calibration hadn't moved since it was assembled from a kit and that's one of the adjustments.

It's not worth losing any sleep over but it was the first time I'd heard that so obliviously. I'm sure it was an honest error but I'm surprised nobody said anything, even anonymously, in the pile up. Usually when 17m is open there will be someone on 18.165 as the highest available "channel". Anywhere above that puts your upper edge outside the band.

LSB on 4.000 MHz is fine assuming your sideband suppression is good. I've heard US stations operating USB on 3.600 which is likewise okay.

I've also heard FM on 29.700 MHz which is not okay.

[N0AZZ]

Life's short, don't sweat the small stuff.

[KD8FYI]

Elecraft K3. I checked WWV to make sure the calibration hadn't moved since it was assembled from a kit and that's one of the adjustments.

It's not worth losing any sleep over but it was the first time I'd heard that so obliviously. I'm sure it was an honest error but I'm surprised nobody said anything, even anonymously, in the pile up. Usually when 17m is open there will be someone on 18.165 as the highest available "channel". Anywhere above that puts your upper edge outside the band.

LSB on 4.000 MHz is fine assuming your sideband suppression is good. I've heard US stations operating USB on 3.600 which is likewise okay.

I've also heard FM on 29.700 MHz which is not okay.

You couldn't tell the stations that they were in violation without being in violation your self?

73,
Ed

[KT1F]

You couldn't tell the stations that they were in violation without being in violation your self?

Yes, you're right. There is a bit of a conundrum there

[KT1F]

Life's short, don't sweat the small stuff.

True but it's cheap entertainment.

Just tuned in this morning and there's some British stations on the same frequency. Someone come on and tried to politely tell him that his upper sideband is outside the band and the response was something like "Go away ya bloody plonker!"

[K5TCJ]

Life's short, don't sweat the small stuff.

When the small stuff is ignored it becomes nonexistent, then the new small stuff is ignored, then......