ARRL

W1VT

Joined: Sat, Apr 4th 1998, 00:00 Roles: N/A Moderates: N/A

Latest Topics

Topic Created Posts Views Last Activity
Antenna analyzer vs feedline type Sep 21st 2012, 14:37 1 2,034 on 21/9/12
USB to Serial Port problems--Prolific Drivers Aug 3rd 2012, 18:27 2 2,334 on 26/12/15
Italian Phishing emails! Dec 13th 2011, 14:20 1 1,814 on 13/12/11
John K0GMO needs help designing SS Amp Nov 17th 2011, 15:53 1 1,671 on 17/11/11
1 Farad Capacitor to Eliminate Headlight Flicker? Oct 19th 2011, 13:14 4 2,836 on 9/11/11
History of Relay Rack Dimensions? Oct 17th 2011, 12:58 2 1,927 on 25/10/11
Miswired Selsyn Oct 13th 2011, 17:51 1 1,772 on 13/10/11
Stealth Antenna wire Sep 12th 2011, 12:51 2 2,412 on 13/9/11
Designing a ham bench Aug 29th 2011, 12:38 2 2,849 on 29/8/11
Can't find recent Hint and Kink Aug 26th 2011, 13:01 1 2,461 on 26/8/11

Latest Posts

Topic Author Posted On
Dim numberes on my TS450 N7LAR 6 hours, 20 minutes ago
This thread on QRZ may help
http://forums.qrz.com/index.php?threads/kenwood-ts-450s-ultra-bright-display.366743/
Plated antenna elements WA1DF 3 days, 6 hours ago

http://www.ansys.com/Products/Electronics/ANSYS-HFSS
An Introduction to HFSS: Fundamental Principles, Concepts ...
ANSYS makes no warranty of any kind with regard to this material, including, but ... Initially used to model waveguide transitions, HFSS was quickly utilized for ..... the solution space are covered, or coated, by a perfect electric conductor bound-.

There are 3D finite element analysis programs that can model plated or multilayer conductors.

Zack Lau W1VT
ARRL Senior Lab Engineer
Plated antenna elements WA1DF 4 days, 8 hours ago
While EZNEC won't handle plated materials, you can use the demo version to calculate the resonant length for different materials

https://www.eznec.com/demoinfo.htm

Zack Lau W1VT
ARRL Senior Lab Engineer
.
R.F. Feedback issue KI3T 4 days, 8 hours ago
You may need to decouple the wires attached to the computer. I've used large FT-240-43 toroids--10 turns should work OK on 20 meters. If the wires are thin you can wrap several wires around the same toroid.

Zack W1VT
ARRL Senior Lab Engineer
What do I trust, my tuner or my analyzer? AF9U 1 week, 3 days ago
Since you don't have a balun, the outside shield of the coax is another antenna element. Presumably, when connected to the tuner, the tuner grounds the shield. You need to duplicate this connection when using the antenna analyzer--otherwise you are really measuring two different antenna systems.

Zack W1VT

Back to Top