Mail Archive Search: <+from:phutter@sarnoff.com>

Results:

References: [ +from:phutter@sarnoff.com: 12 ]

Total 12 documents matching your query.

1. Topband: Twisted pair 90 degree hybrid directional couplers (score: 1): Author: phutter@sarnoff.com (PETER HUTTER); Date: Wed, 01 Aug 2001 15:06:23 -0400; Hello Topbanders, I've been reading several threads on the web recently concerning the use of 90 degree hybrids as splitters or combiners. A hybrid has four ports. Port 1 is the input port and phase; /archives//html/Topband/2001-08/msg00004.html (9,457 bytes)
2. Topband: Antenna Interaction Question (score: 1): Author: phutter@sarnoff.com (PETER HUTTER); Date: Fri, 29 Jun 2001 09:44:29 -0400; Hello Stew and all, At WW2Y, T/R relays were placed on splitter outputs to decouple all four inverted L elements during receive. Each inverted L feedline connecting to the splitter are 3/4 wavelengt; /archives//html/Topband/2001-06/msg00069.html (7,775 bytes)
3. Topband: prospective QTH evaluations (score: 1): Author: phutter@sarnoff.com (PETER HUTTER); Date: Fri, 25 May 2001 14:24:46 -0400; Using a car radio at the desired spot would only be useful for finding local noise within a few Km of the site. Remote powerline and other man made noise sources that could be far more serious can be; /archives//html/Topband/2001-05/msg00059.html (7,746 bytes)
4. Topband: receiving antennas (score: 1): Author: phutter@sarnoff.com (PETER HUTTER); Date: Wed, 18 Oct 2000 11:29:15 -0400; Make sure the plots are normalized before each comparison. This will remove the gain factor for determining the directivity of a receiving antenna system. Compare each set of plots at various azimuth; /archives//html/Topband/2000-10/msg00115.html (7,981 bytes)
5. Topband: TopBand Receivers (score: 1): Author: phutter@sarnoff.com (PETER HUTTER); Date: Wed, 16 Aug 2000 10:08:33 -0400; R4C with Sherwood mods would be a great choice. I've been using one for years along with FT-1000D with great sucess. -- FAQ on WWW: http://www.contesting.com/FAQ/topband Submissions: topband@contesti; /archives//html/Topband/2000-08/msg00048.html (7,754 bytes)
6. Topband: TopBand Receivers (score: 1): Author: phutter@sarnoff.com (PETER HUTTER); Date: Mon, 21 Aug 2000 09:06:13 -0400; It's easy to spot the desired operating frequency when the R4C isn't completely muted. A series resistance (adjustable pot) placed in the mute line would do the trick. Peter WW2Y -- FAQ on WWW: http:; /archives//html/Topband/2000-08/msg00077.html (8,151 bytes)
7. Topband: Re: Noise floor (score: 1): Author: phutter@sarnoff.com (PETER HUTTER); Date: Mon, 28 Aug 2000 15:36:50 -0400; There are quite of number of stations that have extremely directive receiving antenna systems for topband, especially here in the US. These systems are not just stand alone beverages, loops, flags, p; /archives//html/Topband/2000-08/msg00118.html (7,307 bytes)
8. Topband: RX Splitter for 160/80m (score: 1): Author: phutter@sarnoff.com (PETER HUTTER); Date: Wed, 30 Aug 2000 09:14:29 -0400; Mini-Circuits in Brooklyn, NY. manufacture broadband passive splitters in many styles. http://www.minicircuits.com Good luck, Peter -- FAQ on WWW: http://www.contesting.com/FAQ/topband Submissions: t; /archives//html/Topband/2000-08/msg00132.html (7,135 bytes)
9. Topband: beverages in woods? (score: 1): Author: phutter@sarnoff.com (PETER HUTTER); Date: Wed, 24 May 2000 16:10:47 -0400; WW2Y and N2NU use screw eyes in trees to support the beverage wire. The wire is only anchored at feedpoint and termination ends of the antenna. For tree supports in between the ends of the antenna, t; /archives//html/Topband/2000-05/msg00073.html (7,597 bytes)
10. Topband: Great conditions last night (score: 1): Author: phutter@sarnoff.com (PETER HUTTER); Date: Thu, 02 Mar 2000 10:00:35 -0500; Hello topbanders, The band was in excellent shape last night. It opened into United Kingdom at our sunset with huge signals from G3PQA, GI3OQR, and GM4BES. Then I called CQ on SSB and 3 KP4's (KP4SN,; /archives//html/Topband/2000-03/msg00003.html (7,690 bytes)
11. Topband: Echoes during CQ-160 SSB (score: 1): Author: phutter@sarnoff.com (PETER HUTTER); Date: Mon, 28 Feb 2000 08:48:55 -0500; I noticed long delay echoes on my signal at 1945z on Saturday during the contest. This occurred at 2:45 in the afternoon! The delay of the echo was about .2 to .3 seconds long and the echo was best o; /archives//html/Topband/2000-02/msg00200.html (7,030 bytes)
12. Topband: Balloon-supported verticals (score: 1): Author: phutter@sarnoff.com (PETER HUTTER); Date: Thu, 20 Jan 2000 11:04:14 -0500; Another good reason to use hydrogen instead of helium as a lifting gas for an balloon is that helium permeates through the thin wall at a higher rate. It's a pain to refill the balloon as often with; /archives//html/Topband/2000-01/msg00154.html (7,432 bytes)

Current List: 1 - 12
Page: [1]