Mail Archive Search: <+from:brehm at ptitest.com>

Results:

References: [ +from:brehm: 58 ] [ at (Too many documents hit. Ignored) ] [ ptitest.com: 10 ]

Total 10 documents matching your query.

1. Topband: Comment on Radar Engineers Model 240 (score: 203): Author: brehm at ptitest.com (Brad Rehm); Date: Mon Aug 11 19:39:29 2003; "The Supervisor of Power Distribution in Idaho Falls (nearest town to my Idaho QTH) called to ask if I thought they should buy a Radar Engineers Model 240 RFI/TVI location system. (Shown at www.radar; /archives//html/Topband/2003-08/msg00054.html (8,623 bytes)
2. Topband: Omni VI+ A/B Test Results (score: 203): Author: brehm at ptitest.com (Brad Rehm); Date: Sun Jun 22 20:13:09 2003; "He tweaked everything he could on his radio to peak the signal as best as he could, but the MP was clearly much better. Best results were obtained with the Omni VI+ when using the 250-Hz filter and; /archives//html/Topband/2003-06/msg00038.html (7,243 bytes)
3. Topband: Re: Pulse response (score: 203): 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)
4. Topband: Re: Pulse response (score: 203): 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: 203): 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: 203): 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)
7. Topband: Key clicks (score: 203): Author: brehm at ptitest.com (Brad Rehm); Date: Mon May 12 12:11:20 2003; "I wonder how much of our reflector chatter about performance issues like key clicks ever gets back to the product development teams in places like Icom etc." -- Eric K3NA I don't know how well-conne; /archives//html/Topband/2003-05/msg00095.html (9,032 bytes)
8. Topband: KD9SV vs. ICE Preamps? (score: 203): Author: brehm at ptitest.com (Brad Rehm); Date: Fri Apr 4 21:43:40 2003; Eric, I've looked at products from both of these companies, as well as from K9AY, using equipment in my company's EMC lab. They're all good products, but for your purposes I think the KD9SV and K9AY; /archives//html/Topband/2003-04/msg00003.html (7,439 bytes)
9. Topband: preamps homemade ... (score: 203): Author: brehm at ptitest.com (Brad Rehm); Date: Wed Apr 30 17:05:07 2003; "One of the complaints that we were aware of was that some commercial pre-amps suffered from being driven into distortion from broadcast and other sources nearby in frequency." BCNU DE N2LO I'm surpr; /archives//html/Topband/2003-04/msg00074.html (7,847 bytes)
10. Topband: Apparent ground (score: 203): Author: brehm at ptitest.com (Brad Rehm); Date: Wed Mar 5 17:12:55 2003; "I have a question about the "quality" of the ground around my station. I have also been pondering an interesting experiment but am only interested in attempting it if the results would provide meani; /archives//html/Topband/2003-03/msg00014.html (7,861 bytes)

Current List: 1 - 10
Page: [1]