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221. Topband: K8R on 160 using SuperFox (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Fri, 19 Jul 2024 21:54:58 -0400
Hello TopBanders, As you may know, K8R is a test run for N5J, Jarvis. The season is not ideal for 160. However, we have been testing FT8 SuperFox on the higher bands and the performance with the late
/archives//html/Topband/2024-07/msg00028.html (7,559 bytes)

222. Re: Topband: Topband Digest, Vol 259, Issue 14 (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Sun, 04 Aug 2024 18:36:52 -0400
It make it easier if you think of the loading coil as a transformer: the current is lower on the "top" but the voltage is higher. Power is the same (minus losses). 73, George, AA7JV On 7/28/2024 2:03
/archives//html/Topband/2024-08/msg00006.html (10,816 bytes)

223. Topband: N5J (Jarvis) on 160 m (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Mon, 05 Aug 2024 17:18:02 -0400
Hello Top-Banders, The N5J DXpedition is planning to go QRV on Aug 7 (maybe 8th on 160 if there are WX issues). While Aug is not the best time to work KH5 on TB, this is the only time we got. To make
/archives//html/Topband/2024-08/msg00009.html (8,165 bytes)

224. Re: Topband: N5J Live Stream? (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Fri, 09 Aug 2024 16:53:22 -0400
We are super busy, Updating Clublog once a day is all we got time for. The 160 m antenna (actually 160 - 10) is at the water's edge -- a good location. Two of the higher bands antennas are up on a be
/archives//html/Topband/2024-08/msg00023.html (11,278 bytes)

225. Re: Topband: N5J (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Fri, 09 Aug 2024 16:58:57 -0400
Generally, we go to 160 around 0500 until we run out of callers. We are trying for EU at that time, but NA is much appreciated too. Then we QSY to 80 and come back to 160 around 0830 Z. Stay on 160 a
/archives//html/Topband/2024-08/msg00024.html (10,387 bytes)

226. Re: Topband: N5J Live Stream? (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Sat, 10 Aug 2024 14:41:47 -0400
Jim, It is hard for me to come on TB at 0600 as on most days as we go to the island late afternoon to avoid the heat while we work on things. (Yesterday we rearranged our filters to reduce interferen
/archives//html/Topband/2024-08/msg00031.html (12,829 bytes)

227. Re: Topband: N5J (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Sat, 10 Aug 2024 14:44:08 -0400
We will get around to FT8 on 160 soon. TKS for the Q-s. George George, Tnx for the 160m QSO. Do not need Jarvis on other bands with N6VR. I do need Jarvis Is. on 160m and other bands, with W7YA on FT
/archives//html/Topband/2024-08/msg00032.html (13,038 bytes)

228. Re: Topband: N5J Live Stream? (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Sat, 10 Aug 2024 15:00:58 -0400
Jim, We are using all of the cores you have given me. They help, but it is hard to get a good ground at the top-end of the beach where the sand is very dry and rocks prevent rods getting driven deep
/archives//html/Topband/2024-08/msg00034.html (9,744 bytes)

229. Re: Topband: N5J Live Stream? (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Sun, 11 Aug 2024 15:50:02 -0400
Wes, We are using EU22i generators, which are the newer version of the EU2000. You can only hear their noise in a quite place, Also, we are running three of them paralleled and their noise adds up be
/archives//html/Topband/2024-08/msg00043.html (12,023 bytes)

230. Re: Topband: N5J Live Stream? (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Sun, 11 Aug 2024 15:57:39 -0400
Mike, We have done all those things to the generators and more. Even shielded the ignition coils. Some of the noise is impulse noise that comes from the low voltage input to the ignition coil. We can
/archives//html/Topband/2024-08/msg00044.html (12,692 bytes)

231. Re: Topband: Caribbean Operations On 160m? (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Mon, 12 Aug 2024 20:15:40 -0400
Steve, 40 m has been a problem at N5J. Often we have S9+20 dB over-the-horizon radar signal blanketing from 6.95 to 7.050 for hours at a time. We are considering operating at 7050, but that is very c
/archives//html/Topband/2024-08/msg00058.html (11,200 bytes)

232. Re: Topband: Caribbean Operations On 160m? (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Tue, 13 Aug 2024 01:44:14 -0400
Tonight I will get on 160 at 0830 Z. Will go to FT8 if there are no too few CW callers. GL, I am patiently waiting for a 160m FT8 QSO. This morning, I was up at 2:30 am local and saw that N5J had cal
/archives//html/Topband/2024-08/msg00067.html (14,185 bytes)

233. Re: Topband: Caribbean Operations On 160m? (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Tue, 13 Aug 2024 01:47:34 -0400
Wes, Schedules are very hard to follow. We need to work the bands that are good and work them as long as they are open. Propagation has been so erratic the last few days that all that is unpredictabl
/archives//html/Topband/2024-08/msg00068.html (11,206 bytes)

234. Topband: N5J on 160 (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Wed, 14 Aug 2024 16:49:30 -0400
We have been improving our 160 m set up every day. We have added more ground wires that connect the TX antenna base to the water and have built a very effective RX antenna. Now we can comfortable hea
/archives//html/Topband/2024-08/msg00075.html (12,027 bytes)

235. Re: Topband: N5J (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Mon, 19 Aug 2024 15:11:05 -0400
N5J was on 160 from 0450 to 0530 last night with reduced power. We reduced power due to issues with the 160 m antenna, which we have shortened to reduce danger to birds. Birds have entered a very act
/archives//html/Topband/2024-08/msg00090.html (8,961 bytes)

236. Re: Topband: N5J (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Mon, 19 Aug 2024 21:27:59 -0400
Maybe a bit tonight. George   On Monday, August 19, 2024 at 12:13:41 PM MST, GEORGE WALLNER <aa7jv@atlanticbb.net> wrote:  N5J was on 160 from 0450 to 0530 last night with reduced power. We reduced p
/archives//html/Topband/2024-08/msg00092.html (10,362 bytes)

237. Re: Topband: CY9C (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Sat, 07 Sep 2024 16:56:34 -0400
Rudy, Info at https://www.qrz.com/db/C6AGU 73, George Rudy N2WQ Sent using a tiny keyboard. Please excuse brevity, typos, or inappropriate autocorrect. On Sep 7, 2024, at 2:01PM, Jim Brown <jim@audio
/archives//html/Topband/2024-09/msg00051.html (10,139 bytes)

238. Re: Topband: CY9C (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Sat, 07 Sep 2024 21:14:33 -0400
As Jim points out: This is non-trivial. I have not published the details as so far nobody has asked for them. Indeed, it has to be a serious DXpedition to justify the effort needed. George, AA7JV Sen
/archives//html/Topband/2024-09/msg00057.html (10,777 bytes)

239. Re: Topband: CY9C (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Sun, 08 Sep 2024 03:59:38 -0400
Jamie, The amp is water cooled. It is driven to provide 800 W output for the CW signal and 200 W for the FT8 signal. The heat spreader temp rarely goes over 55 C, even in the middle of the day. Water
/archives//html/Topband/2024-09/msg00059.html (13,202 bytes)

240. Re: Topband: CY9C (score: 1)
Author: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
Date: Sun, 08 Sep 2024 04:02:45 -0400
Jamie, The PTT is simple. Either transmitter's PTT can turn on the PA. RX is via a separate antenna port, so there is no RX/TX switching in the PA. George 73 (thanks for the N5J new one) Jamie WW3S A
/archives//html/Topband/2024-09/msg00060.html (11,867 bytes)

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