Good Luck meeting these requirements! § 101.15 Notice requirements. <https://www.ecfr.gov/on/2022-12-09/title-14/section-101.15> No person may operate an unshielded moored balloon or kite more than 1
Author: Boye Christensen via Topband <topband@contesting.com>
Date: Tue, 20 Dec 2022 21:36:53 +0100
Hi Keep in mind a 1/2 wave vertical feeding inpedance 1-3 Kohm this means high voltage ? ON4UN tried on his isolated tover for 164m 40m high to do so on 80 m, and only worked on low power ? Ended up
My sloper is fed at the 72 foot point on an 86 foot tower where the coax is grounded to the tower leg and with about 12 feet of mast above the tower .. This wasn't enough on 160 and I added a 130 fo
Author: Robert Parkes via Topband <topband@contesting.com>
Date: Sun, 16 Jan 2022 09:06:33 +0000 (UTC)
With regard to the discussion on 1/4 wave slopers are members feeding the sloper at the top end against the tower or at the bottom against the ground system ? My understanding from the ARRL HB is a
--Original Message-- From: Topband <topband-bounces+chetmoore=cox.net@contesting.com> On Behalf Of Mark Robinson Sent: Friday, January 14, 2022 4:59 PM To: jim.thom jim.thom@telus.net <jim.thom@telus
I am using a modified Alpha Delta DX-A 1/4 wave sloper attached at approx 72 feet on my 86 foot tower. I removed the loading coil and now have 5 wires whch are two full size 160m wires, two full
I have had similar results with half sloper connected at 50 feet on a 100 foot tower (45G). I have radials now but didn't always have them but never tried to do a definitive look to see if the radial
Jim ... Since getting on topband I've only used a half-sloper hung from the top of my 48' Delhi tower. I'm presently at 163 DXCC, mostly CW. The base of the tower connects to ~60 buried radials of va
Have any of you folks used, or tried a half sloper.... aka 1/4 wave sloper ? Loaded or otherwise ? I'm talking about say terminated up 80-90' up a tower. I have used slopers on 75m with reasonable su
Ed, What frequency are we talking about? I use center fed loaded slopers on my 70 ft tower for 80M. Some people use the tower (shield) and sloping wire (center). I have not had as much success with t
There is no question about vertical vs horizontal and also time of NVIS vs low angle prop. The question started about whether the L was the same as a T. Its not. However, ad Mark states, having 2 ant
David, Diversity is an interesting feature. I found even a mostly horizontal long wire to the sub Rx was an asset with diversity. With the two HI-Z systems & dual Rx K3s, I have three antennas to wor
Author: CUTTER DAVID via Topband <topband@contesting.com>
Date: Wed, 31 Jul 2019 16:32:03 +0100 (BST)
Kevin This might help on a small lot: I am very fortunate to have a dual rx K3S and I am planning to use 2 flags at right-angles in the corner of the field I've been loaned. Being in the bushes and a
On my small lot (130 ft by 50 ft, but it does have a house on it, hi hi) about the only half decent and flexible RX antenna I can manage is a K9AY. And it definitely helps most of the time, useful on
As a minority report by one, IMO the simplest, smallest, cheapest, good RDF receive antenna is the DHDL. RDF around 9, pretty good for $20 of wire, one BN-73-202, one resistor, some string and two tr
Author: CUTTER DAVID via Topband <topband@contesting.com>
Date: Tue, 30 Jul 2019 09:27:59 +0100 (BST)
If it hasn't already been mentioned, here's something to watch: https://www.youtube.com/watch?v=fyZR9uMBnIo all about receive antennas. about an hour in W3LPL gets into more detail about high and low
Hi again folks, Got some great advice from several others. 'Shared Apex'; KD9SV bi-directional beverage recommended; K9AY (guess I need to get busy and finish mine); Hi-Z 8 along with Waller-Flag at
I am using a Hi-Z 8 here along with a Waller Flag?? (From N4IS es TopBand Systems) at 95 feet. In the past I had up a K9AY antennas, several short beverages and several Ewe's. I also had up a low dip
This is a really good answer. Thanks Tim. 73 - Mark N5OT On 7/29/2019 7:12 AM, Tim Shoppa wrote: Terry, I strongly encourage you to put up the K9AY. By no numerical measure is it the best. But its ea
Terry, I strongly encourage you to put up the K9AY. By no numerical measure is it the best. But its easy to put up and Compared to all the others, it is relatively insensitive to other objects around