Litz wires, measured peak Q just over 1812. Toroids with a Teflon core and Teflon spacers and two parallel 660/46 Now to defeat my argument, a Chinese radio amateur made a rod with 26 TheД«est I ever got with a #61 material was 550 Q. Lower loss material coming out of China that is performing well. Your standard 61 material is to lossy to get this high, there is some I used a Boonton 260A Q meter and averaged 5 tests, I'll give theД¬aveat that high Q's are elusive to measure. Peaking at about 750kHz with a Q of 1450 and dropping to 950 at 1600kHz. All coils were between 232uh and 237uh.ДЎ0 TPI, 11 TPI and 12 TPI were pretty close, with Q at 500kHz of 1250, Wire with spacing's of 11 Turns Per Inch, 12 TPI, 13 TPI, 14 TPI and 15 Using 6' polystyrene pipe coupler as a form. о—“ I'll disagree with you on that Phil, I recently built 5 coils This email has been checked for viruses by Avast antivirus software. Search FSL for more info, Gary Debock is an experimenting guru. These four match ups (with the design factorsД¬larified by the results) were as follows: Weak-signal performance, four of the FSL test model match ups wereД¬onsidered very important. Here's one that that is 7' in diameter and uses 68-5/16' diameter rodsДЇor determination of the design factors influencing an FSL antennaвЂ™s It uses multiple rods, or barsДЄrranged side by side in a circle with wire wrapped around it.Дiameters range from 5' to 15' although one day someone will spend the > signal output? Would it be more ferrite, or more wire? The Q of the coil willД«e reduced as the inductance drops linearly, but the resistance goesДown by the square root of the permeability. Improvement in the resistive losses of the coil. Half and increase the output voltage by 2. So adding a material with mu(rel) of 4.0 will cut the number of turns in Received voltage by the square root of the relative permeability. Linearly by the change in mu resulting in an overall increase in The relative permeability through the turns change, but increased The impact on the received voltage will be reduced by the square root of Maintain the inductance is reduced by the square root of the relative So when a magnetic core is added the number of turns required to Inductance is proportional to the square of the number of turns and the I'll use the tilda to indicate proportionality. The signal strength is related to number of turns linearly as well as Inductor core if the inductance is held constant by varying the number о—“You are asking how the antenna output voltage varies with the mu of the

Ferrite rod antennas