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10-03-2001
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#1 (permalink) |
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Posts: n/a
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Connectors/Cable
Greetz, I'm curious to know what type of RF connectors you all are using. And uhh, I'm looking for mainstream stuff like PL259, BNC, et al. I can't afford some proprietary, mil-spec, un-obtainium plated connector costing $50. Likewise, the crimp tool issue. Yikes. I'm interested in making my own "patch cables", antenna cables, antennas, and hacking connectors for wireless cards and access points. Given the above response, what type of cable are you using with said connectors? What I've found in town are N type connectors that are just plain huge! Not to mention that they are only available in town for RG/8 cable. That stuff is a pain to work with. Runs should be in the 3-6' range, so 14db loss over 100' rated cable should be pretty much a non-issue(?). But what is rated to 2.4Ghz? What I'm interested in is a Jameco, Digi-Key, Allied readily available connector and cable. And hopefully crimp tools that don't costs hundreds. Maybe I'm asking too much, but I thought I would take it you folks for feedback. Something tells me the days of PL259's, RG58/U aren't going to cut it. Thanks in advance for your time and responses. |
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11-08-2001
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#2 (permalink) |
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Posts: n/a
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Connectors and cables...
You could use RG 58/U, but it does have fairly high loss, about 22db/100ft, 66db/100m at 1 ghz. If you are running it at very short lengths, it would probably work. BNC connectors aren't good for 2.4ghz, but TNC is rated to 12 ghz I believe, and is identical to BNC except that its a threaded conector, instead of the 1/2 turn connector. SMA connectors are small, smaller than TNC, work well, and are threaded. Type C connectors are similar in size to Type N but are quick disconnect, like BNC. The 'perfect' connector would be the APC-7, which is rated past 18ghz, is sexless, but is expensive, and hard to find. With cables, I dont know a whole lot about the cables, just the connectors (still learning). Hope this helps!
Brian |
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11-09-2001
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#5 (permalink) |
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Posts: n/a
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cable/ connectors
I have used RG-58/U and TNC connectors with good results. BNC and PL259 connectors are not up to the task at this high frequency. As you said with RG-58, keep the length as short as possible. Try not to exceed 10 feet. As for sex....... they mate quite well - thank- you- very- much!
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11-20-2001
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#7 (permalink) |
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Posts: n/a
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Good Info....
Here is some cable info I found.
**WBC195 is a higher performance RG58 which is ideal for shorter cable runs and "jumper" cables. (19.00dB loss per 100Feet or 1.90dB per 10Feet.) **WBC200 is a higher performance alternative to RG58 which again is ideal for shorter cable runs and "jumper" cables. (16.90dB loss per 100Feet or 1.69dB per 10Feet.) **WBC400 is a high performance cable which has become a "standard" of the outdoor wireless LAN and WLL industries. (6.80dB loss per 100Feet or .68dB per 10Feet.) **WBC600 is a very high performance cable which offers an attractive alternative to armored cables. (4.40dB loss per 100Feet or .44dB per 10Feet.) Hope this helps some of you guys out. |
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