u/ArthurQBryan

I have recently acquired an MFJ 993 antenna tuner. Works great. I have a vertical multibander that needs help - it doesn't resonate near where it should and I can't easily get at it to do anything physically to correct the problem. The tuner 'solves' this problem....

I am aware that the device doesn't actually do anything to the antenna - it just matches the impedance of the load/antenna so that my radio "sees" 50 ohms and is happy. What I'm looking for is a relationship between the actual SWR of the antenna and the efficiency of the whole system. i.e. if my radio has 100 watts output into an antenna with a (say) 10:1 SWR how many Watts actually get radiated? Is there a formula for this? Yielding a result in % or dB - either will do..

I'm assuming that an antenna carefully tuned to 1 : 1 at a certain frequency will put close to 100
% of the power sent to it. Increase the SWR and the efficiency goes down. But by how much?

I'll be putting up a 1/4 wave vertical tomorrow to begin trying to get into 6m. I know I'm basically waiting for sporadic E propagation.

I thought I might just leave the radio on receive at 50.11 which is a sort of 'call channel' for SSB. Mostly I'd be doing other things around the house and, if I hear someone, run into the room and try to make some contacts..

Is there another strategy I could use?

Thanks.

Ah, the World Cup. One of the games featured a British and an American commentator. Within seconds of each other, over and over throughout the game, I hear exchanges between the announcers like this, <Brit> "Qatar are defending furiously....", <US> "Qatar is playing great defence..." My brain began to hurt..

Country name as a collective noun or as singular? As a Canadian I am used to using the singular form... "Canada is scoring ...."

Or, what I wish someone would say....
If I were a Corrie character, in the Rovers when Summer is there and Swain and Kit walk in. I would get right up in the face of these two incompetents and yell, "You only seem to arrest the innocent. Not only innocent but people who, if you knew them for 5 minutes you would know they are not killers and you live on this bloody street and this is your local so you DO know them. First Roy and then Summer. Hell, why don't you arrest Rita? That would be form for you, You useless pair of buffoons.!!!!"

Yup. that's what I would say.

I fear that World Cup (yawn!) coverage will bump Corrie into odd timeslots or even cancellations.

Am I worrying needlessly?