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1. Topband: Re: Pulse response (score: 1): Author: brehm at ptitest.com (Brad Rehm); Date: Thu May 1 16:48:02 2003; "I don't think this is a valid worry. "The duration of a lightning discharge is relatively long, in the order of hundreds of milliseconds to a few seconds. "Even if the pulse were very short and abr; /archives//html/Topband/2003-05/msg00012.html (10,514 bytes)
2. Topband: Re: Pulse response (score: 1): Author: w8ji at contesting.com (Tom Rauch); Date: Fri May 2 14:20:03 2003; Antennas and systems we use have very poor (if effectively any) response to and frequencies. In this application higher frequency sinewaves can not pass through any part of the system without rapidl; /archives//html/Topband/2003-05/msg00016.html (9,250 bytes)
3. Topband: Re: Pulse response (score: 1): Author: W4EF at dellroy.com (Michael Tope); Date: Sat May 3 17:48:58 2003; Brad, With the "mushy" preamps, were you using any kind of bandlimiting filters ahead of them. I am wondering if you have any local BC that is loading up the preamps. Your rigs would high pass filte; /archives//html/Topband/2003-05/msg00023.html (9,079 bytes)
4. Topband: Re: Pulse response (score: 1): Author: brehm at ptitest.com (Brad Rehm); Date: Mon May 5 20:52:52 2003; Tom: "Antennas and systems we use have very poor (if effectively any) response to F>20MHz signals. Any pulse is a series of sinewaves of various amplitudes and frequencies." Brad: Some time ago, I wo; /archives//html/Topband/2003-05/msg00031.html (10,636 bytes)
5. Topband: Re: Pulse response (score: 1): Author: brehm at ptitest.com (Brad Rehm); Date: Mon May 5 20:52:56 2003; "With the "mushy" preamps, were you using any kind of bandlimiting filters ahead of them. I am wondering if you have any local BC that is loading up the preamps." "Your rigs would high pass filter it; /archives//html/Topband/2003-05/msg00036.html (9,399 bytes)
6. Topband: Re: Pulse response (score: 1): Author: w8ji at contesting.com (Tom Rauch); Date: Tue May 6 08:19:30 2003; Hi Brad, The overall accumulated power level from our antennas is what causes problems. Unless we are very close to a station (or stations) that reduces field strength at night, the overall power lev; /archives//html/Topband/2003-05/msg00039.html (9,921 bytes)
7. Topband: Re: Pulse response (score: 1): Author: brehm at ptitest.com (Brad Rehm); Date: Tue May 6 12:30:40 2003; "...I measure in the 1-volt range of peak signal level on my Beverages. Even a very good amplifier requires a band-reject filter for the AM BCB. Even SW BC stations have enough level to cause overloa; /archives//html/Topband/2003-05/msg00040.html (8,592 bytes)
8. Topband: Re: Pulse response (score: 1): Author: revans at sarnoff.com (ROBERT EVANS); Date: Tue May 6 14:00:40 2003; Preamps are class A amplifiers, but if they are driven hard enough, they are effectively being "biased" by the RF signals they're handling toward class A-B & B. The DC biasing network can "store" thi; /archives//html/Topband/2003-05/msg00042.html (8,955 bytes)

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