Re: [WISPA] Wind Safety regulations for towers
We once bought out a company that came with a tower company. We closed that down within a couple of months after watching them work. 1/2 of them were crank or meth heads, the others were just nuts. None could keep a drivers license. I caught one guy hanging upside down on a cranes heavy ball 300 ft up without safety straps With OSHA on-site (but not looking thank God). Fired him over the radio. I heard he had since been injured somewhere in Florida. Like I said before, drug test your tower climbers monthly. We let another guy go after he failed a drug test. Zanax and weed. You don't need climbers that are high on anything. Marco On Mon, May 23, 2011 at 1:59 PM, Jerry Richardson jrichard...@aircloud.comwrote: Yeah, but we've seen YouTube videos of superclimbers running up 3k of tower with no safety. Even with rules and safety guidelines there idiots that will ignore them. - Jerry *From:* wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] *On Behalf Of *Marco Coelho *Sent:* Monday, May 23, 2011 11:53 AM *To:* WISPA General List *Subject:* Re: [WISPA] Wind Safety regulations for towers Rule of thumb. If it doesn't feel safe, it probably isn't. While a 20 Mph wind is easy to work in, that same wind would be very dangerous trying to install a 4 foot parabolic dish. Lightning is right out. -- No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1375 / Virus Database: 1509/3655 - Release Date: 05/23/11 WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- Marco C. Coelho Argon Technologies Inc. POB 875 Greenville, TX 75403-0875 903-455-5036 WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
[WISPA] (no subject)
Hello all Can anybody on the list assist or point out links to find out more on FM radio (87.5 - 108MHz) band plan and regulations regarding the FM radio stations and it transmitters. My question is In practical what is the minimum distance (FM zone) between FM stations and the transmitter power output can be used without causing any interference between the 2 stations, say station A operating on 87.5MHz and station B operating on 87.7MHz within the same small town/village. What is the minimum spacing (KHz) can be used if the 2 stations operate in the same town each operating on 100KW Thank you in advance Itaaka WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] (no subject)
At 5/25/2011 03:42 PM, you wrote: Content-Type: multipart/alternative; boundary==_NextPart_000_000E_01CC1AD9.4A1976F0 Content-Language: en-us Hello all Can anybody on the list assist or point out links to find out more on FM radio (87.5 108MHz) band plan and regulations regarding the FM radio stations and it transmitters. My question is In practical what is the minimum distance (FM zone) between FM stations and the transmitter power output can be used without causing any interference between the 2 stations, say station A operating on 87.5MHz and station B operating on 87.7MHz within the same small town/village. What is the minimum spacing (KHz) can be used if the 2 stations operate in the same town each operating on 100KW Thank you in advance The FCC rules for FM stations work two ways. Commercial stations (92 MHz up) are based on a Table of Allocations, which is only modified by petition. It has to meet interference rules but that alone doesn't dictate what can be done. Stations are assigned license classes, each with power limits, and there is a table of distances required between stations of certain classes at given channel spacing (0-3 channels). These hve gotten complex. The educational band (below 92) is generally licensed based on non-interference rules. Low-power stations on any frequency are also based on non-interference rules. These have, I think, recently changed. Under these rules, which also apply to short-spaced allocations, stations are protected out to a certain predicted signal strength contour. The signal within the protected contour is then protected against interference by certain limits. Co-channel interference must be 20 dB less than the protected signal. Adjacent-channel interference must be 6 dB less. A 2nd or 3rd adjacent channel (400-600 kHz) must be no more than 40 dB more than the protected signal. I think the Low Power FM rules are more tolerant, and no longer protect third-adjacent channels, but this was overriden by Congress (thanks, NAB :-( ) and only overturned last December. So the FCC will have new looser rules, but I haven't seen the final text. FM broadcasting is in the FCC Rules Part 73. Here's a copy: http://louise.hallikainen.org/FCC/FccRules/2010/73/ -- Fred Goldsteink1io fgoldstein at ionary.com ionary Consulting http://www.ionary.com/ +1 617 795 2701 WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] (no subject)
It depends on the quality of the receivers. Most receivers in use today will not have sufficient selectivity to be able to receive the desired signal if two 100KW stations are spaced as closely as you describe. 87.5 and 87.7 are right next to each other so many receivers will hear them both at the same time. The frequencies need to be spread apart more. A small town or village should 1) use lower power transmitters - 100 KW is way too much power, and 2) spread the frequencies out more. In a small town, there should be plenty of available frequency space to spread the transmit frequencies out. jack On 5/25/2011 12:42 PM, Itaaka Tebaka wrote: Hello all Can anybody on the list assist or point out links to find out more on FM radio (87.5 108MHz) band plan and regulations regarding the FM radio stations and it transmitters. My question is In practical what is the minimum distance (FM zone) between FM stations and the transmitter power output can be used without causing any interference between the 2 stations, say station A operating on 87.5MHz and station B operating on 87.7MHz within the same small town/village. What is the minimum spacing (KHz) can be used if the 2 stations operate in the same town each operating on 100KW Thank you in advance Itaaka WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- Jack Unger - President, Ask-Wi.Com, Inc. Author (2003) - "Deploying License-Free Wireless Wide-Area Networks" Serving the WISP, Networking and Telecom Communities since 1993 www.ask-wi.com 818-227-4220 jun...@ask-wi.com WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] VoIP LNP line switch
Is someone already using v6.5 in BreezeAcess VL radios? I'm looking for some input about its performance. Any comments? Thanks, Eduardo - Original Message - From: Patrick Shoemaker To: 'WISPA General List' Sent: Monday, May 23, 2011 2:43 PM Subject: Re: [WISPA] VoIP LNP line switch Seems like they're $10 each in low quantity, should have a quote in a few minutes. -- Patrick Shoemaker From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Chuck Hogg Sent: Monday, May 23, 2011 14:32 To: WISPA General List Subject: Re: [WISPA] VoIP LNP line switch Are they really only $6-7? Regards, Chuck On Mon, May 23, 2011 at 12:50 PM, Patrick Shoemaker shoemak...@vectordatasystems.com wrote: Found it: http://www.sittelletech.com/RPS3000.html -- Patrick Shoemaker -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Patrick Shoemaker Sent: Sunday, May 22, 2011 23:46 To: WISPA General List Subject: [WISPA] VoIP LNP line switch Someone posted on this or the Motorola list once about a physical switch device that installs at customer premises and aids in doing LNP with VoIP. A POTS line, the VoIP ATA, and the customer's phone equipment is wired to the switch. The switch connects the POTS line to the customer equipment until it gets a ring signal from the ATA, then the ATA is automatically connected to the customer equipment from that point forward. Makes LNP easier since no technician is required on site when the port actually occurs. Anyone have a link to the manufacturer and a suggestion for a distributor if it can't be purchased direct from the manufacturer in low quantities? -- Patrick Shoemaker Vector Data Systems LLC shoemak...@vectordatasystems.com office: (301) 358-1690 x36 http://www.vectordatasystems.com WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
