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1. Topband: ARRL BPL Video (score: 1)
Author: btippett at alum.mit.edu (Bill Tippett)
Date: Wed Aug 6 22:18:36 2003
The interference from BPL is so bad you owe it to yourself to see (and hear) this video!!! Please visit this site and comment to the FCC before the window closes August 20. http://www.arrl.org/news/s
/archives//html/Topband/2003-08/msg00023.html (6,490 bytes)

2. Topband: How to File BPL Comments with the FCC (score: 1)
Author: btippett at alum.mit.edu (Bill Tippett)
Date: Thu Aug 7 10:00:37 2003
Several suggested I summarize how to do this: 1. Go to http://gullfoss2.fcc.gov/prod/ecfs/upload_v2.cgi 2. Enter only 03-104 in Box 1 (Proceeding). 3. Complete all required boxes (2, 3, 7, 8, 9, 10 &
/archives//html/Topband/2003-08/msg00027.html (8,790 bytes)

3. Topband: Flattop with 450 Ohm feeders (score: 1)
Author: k2wh at optonline.net (Bill)
Date: Wed Aug 13 05:39:16 2003
Dipoles are very forgiving. I have an 80 meter dipole up about 80 feet between 2 trees. But, I could only fit about 80 feet horizontally. The remaining 40 feet (20 ft on a side), hangs straight down
/archives//html/Topband/2003-08/msg00063.html (8,017 bytes)

4. Topband: How to File BPL Comments With the FCC (score: 1)
Author: btippett at alum.mit.edu (Bill Tippett)
Date: Mon Aug 18 07:40:39 2003
I just submitted my Reply Comment after 7 AM and it went through fine with confirmation. It is not unusual that they chose the weekend for maintenance since all ECFS comments require some screening (
/archives//html/Topband/2003-08/msg00086.html (9,466 bytes)

5. Topband: Orion receiver optimization doc (score: 1)
Author: btippett at alum.mit.edu (Bill Tippett)
Date: Thu Jul 3 14:31:06 2003
Relative to the Orion discussion several days ago, here is the info Scott W4PA promised. Even if you don't have an Orion, there is a lot of interesting info about how to use some of the technology wh
/archives//html/Topband/2003-07/msg00025.html (8,919 bytes)

6. Topband: Orion (score: 1)
Author: btippett at alum.mit.edu (Bill Tippett)
Date: Sun Jul 13 06:28:49 2003
DSP that provides extremely narrow bandwidths 73, Bill W4ZV
/archives//html/Topband/2003-07/msg00056.html (6,579 bytes)

7. Topband: PACIFIC 160 METRES CONTEST 2003 (score: 1)
Author: btippett at alum.mit.edu (Bill Tippett)
Date: Thu Jul 17 22:10:12 2003
Rules PACIFIC 160 METRES CONTEST 2003 - REVISED from Ian Godsil VK3JS, Contest Manager Saturday, 19 July, 2003 0800 - 1100 UTC Object: P2, ZL and VK stations to make as many contacts as possible on 1
/archives//html/Topband/2003-07/msg00073.html (8,366 bytes)

8. Topband: Weak Signal Reception (EME view) (score: 1)
Author: btippett at alum.mit.edu (Bill Tippett)
Date: Thu Jul 17 22:38:48 2003
SM 5 BSZ - Receiving Weak CW Signals (June 30 1997) -- Different opinions Among weak signal enthusiasts there are different opinions on what is the best way to receive a marginal signal. The two main
/archives//html/Topband/2003-07/msg00074.html (10,494 bytes)

9. Topband: Re: Weak Signal Reception (EME view) (score: 1)
Author: btippett at alum.mit.edu (Bill Tippett)
Date: Fri Jul 18 14:02:14 2003
I've been thinking about this weak signal issue after reading SM5BSZ's EME website and have come up with a few thoughts regarding applicability to 160 and K6SE's tests. 1. Most noise at VHF is galact
/archives//html/Topband/2003-07/msg00078.html (14,272 bytes)

10. Topband: Re: Weak Signal Reception (EME view) (score: 1)
Author: btippett at alum.mit.edu (Bill Tippett)
Date: Fri Jul 18 16:18:16 2003
about 4 times the keying speed. Turns out that was from my memory from an FCC test question years ago...and it is incorrect! The keyed bandwidth is much more a function of the rise and fall times of
/archives//html/Topband/2003-07/msg00082.html (8,313 bytes)

11. Topband: Re: Weak Signal Reception (EME view) (score: 1)
Author: btippett at alum.mit.edu (Bill Tippett)
Date: Sat Jul 19 09:32:51 2003
Regarding not hearing stations calling off frequency, this can be a problem when using such narrowband reception, and especially in contests, it is necessary to always "wiggle" the dial back and fort
/archives//html/Topband/2003-07/msg00090.html (8,958 bytes)

12. Topband: Re: UCW+LCW (score: 1)
Author: btippett at alum.mit.edu (Bill Tippett)
Date: Sun Jul 20 09:44:01 2003
Since others have asked me about this, I obviously was not clear and will post my response publicly. Here's the problem (if you are not a contester you can skip this message now): 1. As K6SE suggeste
/archives//html/Topband/2003-07/msg00096.html (8,820 bytes)

13. Topband: A/B Testing Limits (score: 1)
Author: btippett at alum.mit.edu (Bill Tippett)
Date: Wed Jun 25 07:27:33 2003
Hi Earl et al! Thank you for a very plausible explanation! However, this brings up an issue which has been bothering me for some time. There seems to be a general tendency for us to discredit laborat
/archives//html/Topband/2003-06/msg00078.html (12,650 bytes)

14. Topband: Orion Discussion and Reminder (score: 1)
Author: btippett at alum.mit.edu (Bill Tippett)
Date: Wed Jun 25 10:56:21 2003
Guys, the Orion discussion is getting to the point that some are violating the guidelines of this reflector, namely: 1. Posts with little or no real information. 2. Posts verging on personal attacks.
/archives//html/Topband/2003-06/msg00085.html (7,659 bytes)

15. Topband: Low RX Dipole (score: 1)
Author: k2wh at optonline.net (Bill)
Date: Mon May 5 20:52:55 2003
I have used a 260' long, 40' high "Z" configured dipole for 2 years on 160. Works pretty good, got 20 countries confirmed and 48 states. Antenna looks like a letter "Z" when viewed from above. Proper
/archives//html/Topband/2003-05/msg00035.html (8,183 bytes)

16. Topband: 160 Meters Mobile Antenna Suggestions (score: 1)
Author: w7ti at ispwest.com (Bill Turner)
Date: Wed May 7 09:16:09 2003
_________________________________________________________ A 160 meter mobile antenna is going to have a very narrow bandwidth so it may not be effective for BCB unless you are able to tune it somehow
/archives//html/Topband/2003-05/msg00046.html (10,090 bytes)

17. Topband: 160 Meters Mobile Antenna Suggestions (score: 1)
Author: w7ti at ispwest.com (Bill Turner)
Date: Wed May 7 18:29:54 2003
Perhaps that is optimistic. I'm going from memory of several years ago. It depends greatly on the Q you achieve with the loading coil. The point is, don't expect much in the way of bandwidth. -- Bill
/archives//html/Topband/2003-05/msg00049.html (9,221 bytes)

18. Topband: 160 Meters Mobile Antenna (score: 1)
Author: w7ti at ispwest.com (Bill Turner)
Date: Thu May 8 07:09:15 2003
The traditional test for lossy plastic is to put a section of about six inches in the microwave for 20 seconds or so and see if it gets hot under full power. To protect the magnetron, also put a smal
/archives//html/Topband/2003-05/msg00051.html (8,310 bytes)

19. Topband: 160 Meters Mobile Antenna (score: 1)
Author: w7ti at ispwest.com (Bill Turner)
Date: Thu May 8 14:19:39 2003
I haven't actually tried heat shrink as a means of preventing rain from detuning, but I suspect it might not work as well as one might think. Since the heat shrink would be right next to the coil tur
/archives//html/Topband/2003-05/msg00054.html (8,689 bytes)

20. Topband: 160 Meters Mobile Antenna (score: 1)
Author: w7ti at ispwest.com (Bill Turner)
Date: Sat May 10 06:52:21 2003
_________________________________________________________ Quite correct. My approach is that any material that passes the microwave oven test should be excellent at HF. -- Bill, W7TI
/archives//html/Topband/2003-05/msg00066.html (9,189 bytes)


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