On 12/9/2020 8:51 PM, wi6x...@gmail.com wrote:
The radials as modeled have End1 Ground connection and no End 2 connection.
Should they be connected to another wire?
To model radials, we must use Real High Accuracy Ground, with NO
connection to Ground. Read the EZNEC manual carefully about
Thank you everyone.
The radials as modeled have End1 Ground connection and no End 2 connection.
Should they be connected to another wire?
--- WIRES ---
No. End 1 Coord. (ft) End 2 Coord. (ft) Dia
(in) SegsInsulation
Not bad at all considering we are under a geomagnetic storm warning. Tried 100
watts to my inverted L, but not enough juice so I put the 400W amp online.
Worked
* G3YRO - Roger (first time QSO)
* OM2XW - Jan
* OZ7YY - Finn (first time in 9 years since we worked)
* RX3APM -
If your vertical is ground mounted you need alot more. I'd say atleast 36
radials, 135ft long. It will make a big difference in your signal and be
easier to match.
I have over 100 radials but probably an over kill, but I feel I have a good
signal on 160m.
Ray,
N6VR/ W7YA
On Wed, Dec 9, 2020,
Jim,
It looks like you connect wires to lossy ground. Do you have the NEC-4
engine with your EZNEC ver 6.0?
Carl K9LA
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Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
60 + j19 does seem off. Is this ground mounted or with elevated radials?
An EZNEC free-space model reports *36 +j227* at 1800kHz.
On perfect GND it reports 166 +j306 ohms.
10' above 0.005/13 GND it reports *37 +j262* ohms with resonance at 1510kHz.
Dave KH6AQ
On Wed, Dec 9, 2020 at 11:32 AM
On 12/9/2020 12:00 PM, wi6x...@gmail.com wrote:
My gut tells me the 60.25197 + J 18.63926 ohms impedance is to high, but I
don’t have enough experience to know if what what I am doing is correct or not.
I’m a neubie, at EZNEC and 160m.
Those numbers tell you that the antenna is resonant
I need help proofing an Inverted L model I made please. 40’ x 143’, four 100’
radials, #14 wire.
My gut tells me the 60.25197 + J 18.63926 ohms impedance is to high, but I
don’t have enough experience to know if what what I am doing is correct or not.
I’m a neubie, at EZNEC and 160m.
Thank you
That takes me back Roger. I recognise every single valve(sorry, tube) type you
mention. What about the EF50?
73
Richard
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Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Hi Annas
Having built several Transmitters and Receivers, Valve ones are SO much
simpler (less stages required) . . . and they usually work straight away !
(unlike Transistor ones, where there's often issues to sort out). Plus no
PCBs needed, all the components just hang off the Valve bases,
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