"Can someone please explain why my receive is so poor WITH the tuner. As stated, a station I'm receiving at 9db without the tuner will drop to 1 with."
I think the first reason is probably that receivers are just not that 'picky' about SWR, impedance matching, dang near anything will 'work'. The closer that antenna is to resonant on a particular band, the better it will 'work'/perform, on both receiving and transmitting.
There are going to be losses with impedance matching, the 'size' of those losses will depend on how resonant the antenna is to start with, and 'where' you do that impedance matching. If it's done at the transmitter end of the feed line, and is the antenna system (feed line and antenna) isn't very 'close' to being 'right', the more those losses can amount to. Compensating/adjusting for that impedance mismatch at the transmitter means that the receiver will also be affected. How much the receiver is affected is a direct result of how far 'off' things are. Since that 'A99' is too short for any of the bands lower in frequency than about 27 Mhz, it means more inductance has to be used to do that 'compensating' and that means more losses. If it were the other way around, if the antenna was too long, then you wouldn't have as much inductance being used and the losses probably wouldn't be as large. That's one of the reasons why a 'multi-band' antenna is of a length for the lowest band of use, for the other bands it'll be too long.
Not the best way, or the most detailed way of saying it, but that's the general idea.
- 'Doc
I think the first reason is probably that receivers are just not that 'picky' about SWR, impedance matching, dang near anything will 'work'. The closer that antenna is to resonant on a particular band, the better it will 'work'/perform, on both receiving and transmitting.
There are going to be losses with impedance matching, the 'size' of those losses will depend on how resonant the antenna is to start with, and 'where' you do that impedance matching. If it's done at the transmitter end of the feed line, and is the antenna system (feed line and antenna) isn't very 'close' to being 'right', the more those losses can amount to. Compensating/adjusting for that impedance mismatch at the transmitter means that the receiver will also be affected. How much the receiver is affected is a direct result of how far 'off' things are. Since that 'A99' is too short for any of the bands lower in frequency than about 27 Mhz, it means more inductance has to be used to do that 'compensating' and that means more losses. If it were the other way around, if the antenna was too long, then you wouldn't have as much inductance being used and the losses probably wouldn't be as large. That's one of the reasons why a 'multi-band' antenna is of a length for the lowest band of use, for the other bands it'll be too long.
Not the best way, or the most detailed way of saying it, but that's the general idea.
- 'Doc
