Enter your vote today! A new poll has been created for the lcwn group: If we offered kits for 2.4 GHz or 900 MHz amplifiers for wireless data networking,...
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lcwn@yahoogroups.com
Jun 24, 2001 6:01 am
Enter your vote today! A new poll has been created for the lcwn group: What kinds of info are you looking for in wireless networking? o Schematics,...
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Brian Oblivion
oblivion@...
Jun 25, 2001 3:43 am
The message I replied to below is an example of why you should avoid Hams at all costs when you want to work at speeds greater than 9600bits/sec. They...
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Matthew Mandalek
mandalek@...
Jun 25, 2001 12:42 pm
...just an option... Now guys, I am not a ham operator, but have known a number of them in my past. There is room for all of us on the airwaves. Yes Ham...
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Brian Oblivion
oblivion@...
Jun 25, 2001 2:10 pm
I don't want to beat on this for long but you definately made my point, in that they had a glorious and very useful past, and dwell on it during their rag...
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ticom@...
Jun 25, 2001 5:54 pm
There are plenty of "old-fashoned" anal-retentive hams who are more than happy to quote regulations at you and tell you what you can't do. There are also...
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xlpitlum
gbppr@...
Jun 25, 2001 10:40 pm
... We've encounterd the same problem here, it's best just to try and ignore them. I'll bet he's gonna get a few nasty emails now. (go getem' steve) I guess...
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pjk@...
Jun 27, 2001 5:59 pm
This band is dead in most areas, witness UPS being able to peel off 220-221Mhz (and not use it). Not as sexy as microwave, but a lot easier to work with...
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xlpitlum
gbppr@...
Jun 27, 2001 8:45 pm
... Multipath interference at low frequencies / high speeds tends to be a major problem. ... There are serveral companies out there, www.lemosint.com for one, ...
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schoon@...
Jun 27, 2001 11:44 pm
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xlpitlum
gbppr@...
Jul 1, 2001 12:21 am
... Exactly, You almost have to break a few rules just to experiment. For instance, staying within the ARRL bandplans for data experiments is almost...
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xlpitlum
gbppr@...
Jul 1, 2001 12:26 am
... Yeah it will work, check Toko's website for the datasheet for the IN/OUT pin. They are may be reversable though. ... *Quality* RG-8 will work for short...
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Matthew Mandalek
mandalek@...
Jul 1, 2001 3:58 pm
A dumb question...Are you doing this modification to increase your output? what is the low pass filter for? The reason I ask, I am looking to build or modify...
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Mike Kana
cosmo224@...
Jul 2, 2001 3:41 am
Hi all Regarding cable - PL259's are pretty worthless once you get above VHF. For 2.4ghz I would recommend using an N, sma, TNC, smb, or smc. If those three...
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xlpitlum
gbppr@...
Jul 2, 2001 4:04 am
Here are schematics of a Gemtek/D-Link USB 11Mbps 802.11 card with the PRISM chipset. Fairly detailed in the RF section too.. It has internal pictures also. ...
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xlpitlum
gbppr@...
Jul 2, 2001 4:14 am
... Fair Radio and Down East Microwave both sell surplus cellular patch cables, these are usually short (12" or so) runs of RG-142 (silver, double shielded, ...
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Brian Oblivion
oblivion@...
Jul 2, 2001 4:48 am
... I agree with you here. Environment will kill normal computers housed in inadequately temperature controlled environments. While I am re-working on system,...
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Mark Atherton
markaren1@...
Jul 2, 2001 4:50 am
This is one of the most interesting posts I have read for quite a while ! Do the FCC really think they can expect to continue to require their licensees to...
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xlpitlum
gbppr@...
Jul 2, 2001 5:36 am
... It shocked me too. You can search based on the product's FCC ID at: https://gullfoss2.fcc.gov/prod/oet/index.html Not everything had the schematics shown....
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xlpitlum
gbppr@...
Jul 2, 2001 6:08 am
... What kind of enclosure are you attempting and what have your results been so far? ... Someone could almost experiment with a *really* long PCMCIA adapter ...
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tarvid@...
Jul 2, 2001 9:08 am
... We have a few of the Addtron (made by Eumitcom also sold as SMC and others) APs installed in weatherproof enclosures outside. The power supplies sold with...
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schoon@...
Jul 2, 2001 2:43 pm
Well, I know on HF the ARRL bandplans and the various gentlemen agreements ( which if you've ever listened to certain portions of 80M at night, there are very...
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tarvid@...
Jul 2, 2001 2:49 pm
My daughter informs that the box installed outside has an RJ45 jack on it. Anybody know what Sprint's packaging is like? Jim Tarvid...
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schoon@...
Jul 2, 2001 3:58 pm
Cleaning out the lab, and had several small to medium sized UPSes laying around... The thought crossed my mind that the battery could be replaced with a solar...
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tarvid@...
Jul 2, 2001 4:16 pm
... I have heard this was true with APC, probably true of them all. I would think that it would be easy to use a higher order approximation to smooth these out...
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Brian Oblivion
oblivion@...
Jul 2, 2001 4:25 pm
I've collected some information on using solar/wind for remote installations and for general alternative energy production. This stuff, with a little brain...
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Brian Oblivion
oblivion@...
Jul 2, 2001 4:33 pm
... Have you ever done any temperature measurements during the course of the year? I understand they are "weatherproof" enclosures, do they breathe or are...
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schoon@...
Jul 2, 2001 4:55 pm
Thanks, this is where I got my original idea. Buying new COTS equipment is expensive and in staying with the lc in lcwn, rolling my own out of common parts...
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schoon@...
Jul 2, 2001 5:08 pm
Hmmm, a tuned filter for 60 hz?? Didn't think of that... I'm not sure how well concerting UPSes over is all that efficient. I haven't put together a $$$ goal...
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tarvid@...
Jul 2, 2001 5:26 pm
... No temperature measurements. It is about time for an IR thermometer. These are standard NEMA plastic boxes. We drilled hole in the bottom and fashioned...
