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Total 6 documents matching your query.

1. Topband: Preamp for Pennant (score: 1): Author: ford@cmgate.com (Ford Peterson); Date: Sun, 19 Aug 2001 17:09:44 -0500; I'm designing a set of 4 pennant antennas for 160. They will be switchable in-out to a common feedline. I'm basing the design on K6SE's work published in 7/00 QST. I've decided on the Point-fed desig; /archives//html/Topband/2001-08/msg00079.html (7,507 bytes)
2. Topband: Preamp for Pennant (score: 1): Author: w7iuv@earthlink.net (Larry Molitor); Date: Mon, 20 Aug 2001 04:07:07 +0000; Ford, Some points to consider: In order to preserve the common mode rejection of the system, you would need to feed each antenna with 960 ohm balanced line. You would also need to make your switch bo; /archives//html/Topband/2001-08/msg00080.html (8,956 bytes)
3. Topband: Preamp for Pennant (score: 1): Author: gmguerin@voyager.net (George & Marijke Guerin); Date: Mon, 20 Aug 2001 11:28:10 -0400; Gentlemen: Based on what I know, one can make or buy an 18:1 transformer to get the correct match for a pre-amp. One of the cautions is to not interconnect the high and low impedance windings on the; /archives//html/Topband/2001-08/msg00081.html (7,821 bytes)
4. Topband: Preamp for Pennant (score: 1): Author: dsp@hifidelity.com (Steve Dove); Date: Mon, 20 Aug 2001 16:23:43 -0400; Hi Ford, Using active means to terminate the small loops can be made to work, but for the cost of a small transformer (or four) may not be worthwhile. A standard 4:1 ratio transformer (MiniCircuits,; /archives//html/Topband/2001-08/msg00083.html (9,755 bytes)
5. Topband: Preamp for pennant (score: 1): Author: ford@cmgate.com (Ford Peterson); Date: Mon, 27 Aug 2001 21:50:24 -0500; I have spent some time the last few days researching and redesigning the preamp on Larry's - W7IUV website. (see http://home.earthlink.net/~w7iuv/w7iuv/flag.htm) It uses the 2N5109 transistor to prov; /archives//html/Topband/2001-08/msg00126.html (8,784 bytes)
6. Topband: Preamp for pennant (score: 1): Author: w7iuv@earthlink.net (Larry Molitor); Date: Tue, 28 Aug 2001 14:20:17 +0000; Ford, The caps were indeed chosen to provide some small measure of roll-off at the low end. The first values used in the original version were 0.1 uF. That original low-bias version IMD performance w; /archives//html/Topband/2001-08/msg00133.html (8,275 bytes)

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