Antenna Tuner
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| Jun 5th 2014, 14:44 | |
KB3FFHTotal Topics: 0 Total Posts: 0 |
What is the difference between a remote tuner at base of tree ( AH-4) and a tuner at the radio ( AT-Auto). Other than 75' of fg-213 cable loss ? This is for an OCF dipole Thanks |
| Jun 5th 2014, 15:11 | |
W1VTSuper Moderator Total Topics: 0 Total Posts: 0 |
If the SWR is low, the difference is negligible. If the SWR is high, you can get a significant increase in transmit signal by putting the remote tuner closer to the antenna feedpoint. This can be calculated, if you know the SWR somewhere and the cable type(s) with TLW, Transmission Line for Windows Program that comes with the ARRL Antenna Book. A similar program to TLW is Transmission Line details http://www.ac6la.com/tldetails1.html Zack Lau W1VT ARRL Senior Lab Engineer |
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