Home |
Search |
Today's Posts |
#11
|
|||
|
|||
Thierry wrote:
SNIP Hi, Correct. This is well what I did, rotating the amplifier load knob (a kenwood TL922) to reduce the SWR as I could not reduce it another way (antenna side) due to my defect balun. 73 Thierry No! You did not reduce the VSWR!! You increased the loading of the amplifier! If you remember, VSWR is a measure of the impedance mismatch of the antenna and the impedance of the transmission line MEASURED AT THE ANTENNA. There is NOTHING you can do at the RTX/Amplifier to change it! The PLATE and LOAD controls on your TL922 allow you vary the values of 'C' in the output stage of the amplifier and therefore vary the range of tuning from typically 8 to 400 ohms. DD, W1MCE |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Inverted ground plane antenna: compared with normal GP and low dipole. | Antenna | |||
EH Antenna Revisited | Antenna | |||
Poor quality low + High TV channels? How much dB in Preamp? | Antenna | |||
QST Article: An Easy to Build, Dual-Band Collinear Antenna | Antenna |