Speaker Wire Loss Study
#18 Speaker wire with length = 33' 7"
#22 Speaker wire with length = 21' 5 1/2"
#22 PTFE Twisted Pair with length = 26' 7" (
Additional Information
)
VNWA files:
n18-open.s1p
n18-short.s1p
n22-open.s1p
n22-short.s1p
22ptfe-open.s1p
22ptfe-short.s1p
Loss and Zo computation using "Theory and Problems of Transmission Lines" by Robert A. Chipman, Pages 134 and 135, Equations 7.27 and 7.28
Air Dielectric computed using
RF Two Wire Transmission Line Loss Calculator
Loss Detail
Example #18 Air Dielectric Model at 10 MHz
Example #22 Air Dielectric Model at 10 MHz
Balun and Calibration Load
5T:5TCT #22 Fair-Rite 2843010402 Core
Example 40M Inverted Vee using #22 Speaker Wire
EZNEC model, 40M Inverted Vee, 35' AGL, ends at 11' AGL, Leg Length = 32' 10", SimSmith "L"
2 uH Shunt Matching inductor. Matches antenna to 123 Ohm, SimSmith "L1"
50' #22 Speaker Wire, SimSmith "T1"
Assume Balun at ATU, example, 5T:5TCT #22 Fair-Rite 2843010402 Core shown above. Or Choke Balun.
Antenna Tuner (ATU), SimSmith "LC1"
50 Ohm Transmitter, SimSmith "G"
1 dB Transmission Line Loss
