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Total 225 documents matching your query.

41. Re: Topband: [PVRC] AC line safety capacitors (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Thu, 5 Feb 2015 15:37:22 -0500
This class of capacitor also works great for making repairs to old tube rigs. Various RF bypass, plate blocking etc. in 807/6146B type rigs. Tim N3QE _________________ Topband Reflector Archives - ht
/archives//html/Topband/2015-02/msg00200.html (13,639 bytes)

42. Re: Topband: Is self-spotting ALWAYS wrong? (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Sat, 7 Feb 2015 08:22:02 -0500
I mostly rely on reversebeacon skimmers to "spot me". I know for sure whenever I issue a CQ, and I'm not specifically in a contest unassisted, I am also watching reversebeacon. If I call CQ on 160M a
/archives//html/Topband/2015-02/msg00306.html (10,421 bytes)

43. Re: Topband: Out-of-Turn Callers DX Expedition finances (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Sat, 7 Feb 2015 08:44:11 -0500
I turn on the news every day and hear about EU economic woes. What's wrong with the "Marshall Plan for DX"? Just as NA (not just EU) benefited economically from the real Marshall plan (I explain it t
/archives//html/Topband/2015-02/msg00308.html (11,867 bytes)

44. Re: Topband: K1N DQRM Tracking Project (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Tue, 10 Feb 2015 07:30:41 -0500
Wouldn't the timescale based on leading edge TOF, be the rise time of the pulse? For triangulating on lightning bolts by TOF, rise time doesn't seem to be a limiting factor because lightning bolts ar
/archives//html/Topband/2015-02/msg00361.html (15,676 bytes)

45. Re: Topband: TI9/3Z9DX (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Thu, 19 Feb 2015 11:35:01 -0500
Conditions to EU on 160M last night were just superb. Might be best to just let TI9 work EU given these conditions. This AM before I went to work (1100Z), I got them on 160M CW. They weren't loud but
/archives//html/Topband/2015-02/msg00536.html (8,103 bytes)

46. Re: Topband: Modeling "Ground" (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Mon, 23 Feb 2015 10:01:43 -0500
For most of the past century the intractability of the equations was the excuse for just laying down "textbook" overkill radial systems. If you can't solve the "real world problem", then just change
/archives//html/Topband/2015-02/msg00595.html (13,021 bytes)

47. Re: Topband: Modeling "Ground" and losses (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Tue, 24 Feb 2015 14:14:52 -0500
Radials into neighbors back yard? Yep. At least on contest nights! Radials across basement ceiling and out other side of the house? Yep. Radials across garage floor, out garage windows, through bushe
/archives//html/Topband/2015-02/msg00612.html (8,814 bytes)

48. Re: Topband: 160M CQ WW SSB this weekend - Frequencies (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Fri, 27 Feb 2015 14:13:11 -0500
The higher you go, the easier to find and hold a run frequency. Action extends way way above 1900. There will be a couple occupied "net" frequencies along the way. When I get home tonight, my normall
/archives//html/Topband/2015-02/msg00735.html (8,583 bytes)

49. Re: Topband: Question... (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Fri, 27 Feb 2015 16:58:01 -0500
I don't think signing "VE3XZ/JA" is good enough for remote through Japan. The ones I know who do such stuff, have a special "foreigner in JA" call that starts with 7J, and there's even a special bloc
/archives//html/Topband/2015-02/msg00746.html (11,532 bytes)

50. Re: Topband: Use of Remote Receivers During 160 Meter Contests (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Sun, 15 Mar 2015 16:54:31 -0400
Stan brings up an interesting point. Out of curiosity, how many stations in the top 20 scores of TBDC, use remote receivers within 100km, as allowed by the rules? Tim N3QE _________________ Topband R
/archives//html/Topband/2015-03/msg00080.html (12,154 bytes)

51. Re: Topband: DSP and Latency (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Tue, 17 Mar 2015 23:28:14 -0400
Current fastest way of communicating between two points on the planet is via neutrino beam (which travels just fine through solid rock, we don't need no stinking ether or fiber). Incidentally, they u
/archives//html/Topband/2015-03/msg00160.html (11,975 bytes)

52. Topband: Antenna relays (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Sun, 17 May 2015 22:55:25 -0400
These are very affordable (circa $3) 8A SPDT relays and they held up OK for me in heavy contest usage - until I got a legal limit amp. Since then I have at first intermittent and then increasing prob
/archives//html/Topband/2015-05/msg00026.html (7,396 bytes)

53. Re: Topband: Antenna relays (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Mon, 18 May 2015 09:24:29 -0400
With silver-cadmium relay contacts I use on my ladder line switching, I find I have to occasionally transmit a dit to get receive to work again, especially if I haven't been on the radio in hours or
/archives//html/Topband/2015-05/msg00031.html (8,850 bytes)

54. Re: Topband: Topband loading coil (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Sat, 6 Jun 2015 09:25:28 -0400
I would not in general expect fiberglass board to have high loss at 160M. Regular non-UV rated fiberglass is a glass-reinforced polyester with styrene. HOWEVER... if this is some UV-rated fiberglass,
/archives//html/Topband/2015-06/msg00018.html (9,425 bytes)

55. Topband: Summer Stew this weekend! (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Tue, 16 Jun 2015 09:10:12 -0400
Not heard it mentioned here recently... summer Stew is this weekend! http://www.kkn.net/stew/ I have been working very odd hours at work the past few weeks, but plan to take some time off, battle the
/archives//html/Topband/2015-06/msg00061.html (7,524 bytes)

56. Re: Topband: A midsummer nights contest (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Mon, 22 Jun 2015 09:57:03 -0400
Huge line of thunderstorms ripped through here in the hour before sundown. http://www.trailing-edge.com/lightningmaps.png After the worst of it had passed, most of houses around me lost power due to
/archives//html/Topband/2015-06/msg00081.html (8,025 bytes)

57. Re: Topband: Top hat vertical (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Mon, 29 Jun 2015 13:30:10 -0400
I have had excellent success modeling "Marconi T" verticals with EZNEC. The Demo version can do a Marconi T just fine. Comparison with real world results in my backyard was very good, with EZNEC's pr
/archives//html/Topband/2015-06/msg00100.html (7,147 bytes)

58. Re: Topband: Video Switch for Low Band Antenna switching (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Sun, 5 Jul 2015 16:54:25 -0400
I've used the K9AY pushbutton RX select switches at W3LPL and they are a very fine ergonomic solution. Definitely prefer the pushbuttons to rotary switches. At home I use footswitches for 1-of-4 RX d
/archives//html/Topband/2015-07/msg00017.html (10,730 bytes)

59. Re: Topband: Video Switch for Low Band Antenna switching (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Sun, 5 Jul 2015 21:20:16 -0400
The base K9AY 8x2 switch box: http://www.aytechnologies.com/Products/RAS8x2data.htm If Gary came out with a similar latching pushbutton controller for remote relay switching of 8-circles then it woul
/archives//html/Topband/2015-07/msg00025.html (9,733 bytes)

60. Re: Topband: Which is best for copying the weakest DX - DSP or the ear-brain combo? (score: 1)
Author: Tim Shoppa <tshoppa@gmail.com>
Date: Tue, 4 Aug 2015 21:10:48 -0400
CW skimmer is very impressive to see in action. But nowhere as good as an average CW contester at picking callsigns from the noise. Tim N3QE _________________ Topband Reflector Archives - http://www.
/archives//html/Topband/2015-08/msg00011.html (9,589 bytes)


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