[WISPA] Identifying 2ft dish frequency
I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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] Identifying 2ft dish frequency
It's the feed that determine the frequency. If there is no markings on it the only reasonable way is to use something like a Bird Site Analyzer to figure out your VSWR on the feed and see where the VSWR and return loss is the best. The dish itself only focus the energy in one particular spot then it's up to the feed to pick out the frequency you are interested in. If it's a grid dish certain spacing between the members are good for certain ranges of frequency but a solid does not have this issue. Polarity comes down to the feed again how it's installed in the dish. By rotating the feed 90deg in the mount will change your polarity. / Eje -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Mark McElvy Sent: Wednesday, October 21, 2009 8:43 AM To: WISPA General List Subject: [WISPA] Identifying 2ft dish frequency I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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/
Re: [WISPA] Identifying 2ft dish frequency
Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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/
Re: [WISPA] Identifying 2ft dish frequency
These appear to be Pac Wireless dishes. Is there any instructions on setting the polarity? I seem to remember setting up an new Pac dish and there where instructions showing the polarity setting based on a pin on the feed horn. Mark McElvy AccuBak Data Systems, Inc. -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Eje Gustafsson Sent: Wednesday, October 21, 2009 9:08 AM To: 'WISPA General List' Subject: Re: [WISPA] Identifying 2ft dish frequency It's the feed that determine the frequency. If there is no markings on it the only reasonable way is to use something like a Bird Site Analyzer to figure out your VSWR on the feed and see where the VSWR and return loss is the best. The dish itself only focus the energy in one particular spot then it's up to the feed to pick out the frequency you are interested in. If it's a grid dish certain spacing between the members are good for certain ranges of frequency but a solid does not have this issue. Polarity comes down to the feed again how it's installed in the dish. By rotating the feed 90deg in the mount will change your polarity. / Eje -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Mark McElvy Sent: Wednesday, October 21, 2009 8:43 AM To: WISPA General List Subject: [WISPA] Identifying 2ft dish frequency I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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/
Re: [WISPA] Identifying 2ft dish frequency
I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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/
Re: [WISPA] Identifying 2ft dish frequency
Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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/
Re: [WISPA] Identifying 2ft dish frequency
Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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/ 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] Identifying 2ft dish frequency
but is that 2' at 2.4 or 5.8? ducks Sent from my iPhone On Oct 21, 2009, at 7:49 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless- boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. --- - 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/ --- --- --- --- 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/
Re: [WISPA] Identifying 2ft dish frequency
Ok, just checking. Good cover...grin Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:56 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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/ 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
Re: [WISPA] Identifying 2ft dish frequency
Diameter is irrelevant and will not tell you frequency. The feed is determine the frequency. If these are Pacific Wireless dishes then they are 5GHz assuming these are solid dishes since Pac never produced a 2.4GHz feedhorn for their solid dishes at least during the 6+ years we been one of their distributors. Only question would be if they are narrow frequency 5GHz or wideband 5GHz feeds. They been selling the wideband feeds for about 2 years now during this time the narrow frequency feeds have not been very popular. But even if they where narrow frequency 5GHz and you used it on the wrong 5Ghz frequency then they would still work except your gain would be down 3-4dB from what they could do. I cannot on top of my head recall how to determine the installed polarity of the feed but will go back to the warehouse to take a quick look to see how the feed needs to be installed for vertical and horizontal since it's impossible to tell by looking at the head of the feed on these dishes. / Eje -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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/ 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] Identifying 2ft dish frequency
BTW Mark, if you determine they are PacWireless antennas I'd just punt them on EBay and replace them with RadioWaves or Gabriel 2' antennas. In the long run you'll be a lot happier. Just my opinion... Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Brad Belton Sent: Wednesday, October 21, 2009 10:01 AM To: 'WISPA General List' Subject: Re: [WISPA] Identifying 2ft dish frequency Ok, just checking. Good cover...grin Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:56 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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
Re: [WISPA] Identifying 2ft dish frequency
Only reason why the feed arm is longer on a higher gain dish or grid is because the grid or dish is larger and the focal point is further away from the dish so the arm has to be longer but that is independent of frequency because the focal point will always be at the same place on the same dish no matter frequency. Think of a dish as a magnifying glass. Depending on the size and shape of the glass you have to hold it so far away to get best magnification. Remember when you where kid and toasted ants with a magnifying glass you had to hold it so far away from the ant to get that really strong white pinpoint on the ant. If you took a different size glass you had to change the distance but the distance was always the same for the one particular glass no matter what kind of light source (sun, light bulb, fluorescent, candle). The same is true with a dish / grid. The size and shape of it determine where all the light (in our case RF) is being strongest bunched up and the frequency is just different light sources. Replace the feed that is designed for a different frequency on the dish/grid and that grid now work on that frequency. But with a grid the higher frequency your wanting to use the closer the spacing between the grid members has to be to be the most efficient. 1 works good for 900 and 2.4 but 0.5 is recommended for 5Ghz or higher. On a solid dish you have no such issues or concerns since it's a perfect mirror. / Eje Dear animal protection activists. No ants where harmed in this telling... ;) -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:56 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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
Re: [WISPA] Identifying 2ft dish frequency
Assuming they're Pac (not sure how that was determined) You know they are 2.4 or 5Ghz Eje just said: If these are Pacific Wireless dishes then they are 5GHz assuming these are solid dishes since Pac never produced a 2.4GHz feedhorn for their solid dishes at least during the 6+ years we been one of their distributors. Obviously it's 5GHz! Polarity is normally done with an arrow sticker on the base of the feedhorn. Of course if it's been out in the weather it's long gone. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 11:03 AM, Brad Belton b...@belwave.com wrote: BTW Mark, if you determine they are PacWireless antennas I'd just punt them on EBay and replace them with RadioWaves or Gabriel 2' antennas. In the long run you'll be a lot happier. Just my opinion... Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Brad Belton Sent: Wednesday, October 21, 2009 10:01 AM To: 'WISPA General List' Subject: Re: [WISPA] Identifying 2ft dish frequency Ok, just checking. Good cover...grin Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:56 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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
Re: [WISPA] Identifying 2ft dish frequency
I suppose the may not be pacwireless as I have determined they are 2.4 by hooking the up to a CM9 and when ap is in 5.8 I see nothing and when in 2.4 I can see. Now I just need to find 5.8 feedhorns to fit this dish. Mark -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 10:10 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Assuming they're Pac (not sure how that was determined) You know they are 2.4 or 5Ghz Eje just said: If these are Pacific Wireless dishes then they are 5GHz assuming these are solid dishes since Pac never produced a 2.4GHz feedhorn for their solid dishes at least during the 6+ years we been one of their distributors. Obviously it's 5GHz! Polarity is normally done with an arrow sticker on the base of the feedhorn. Of course if it's been out in the weather it's long gone. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 11:03 AM, Brad Belton b...@belwave.com wrote: BTW Mark, if you determine they are PacWireless antennas I'd just punt them on EBay and replace them with RadioWaves or Gabriel 2' antennas. In the long run you'll be a lot happier. Just my opinion... Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Brad Belton Sent: Wednesday, October 21, 2009 10:01 AM To: 'WISPA General List' Subject: Re: [WISPA] Identifying 2ft dish frequency Ok, just checking. Good cover...grin Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:56 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org
[WISPA] Identifying 2ft dish frequency
I decided they are pacwireless based on buying some new dishes several years back and they are built exactly the same. May be a bad assumption. Mark -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 10:10 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Assuming they're Pac (not sure how that was determined) You know they are 2.4 or 5Ghz Eje just said: If these are Pacific Wireless dishes then they are 5GHz assuming these are solid dishes since Pac never produced a 2.4GHz feedhorn for their solid dishes at least during the 6+ years we been one of their distributors. Obviously it's 5GHz! Polarity is normally done with an arrow sticker on the base of the feedhorn. Of course if it's been out in the weather it's long gone. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 11:03 AM, Brad Belton b...@belwave.com wrote: BTW Mark, if you determine they are PacWireless antennas I'd just punt them on EBay and replace them with RadioWaves or Gabriel 2' antennas. In the long run you'll be a lot happier. Just my opinion... Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Brad Belton Sent: Wednesday, October 21, 2009 10:01 AM To: 'WISPA General List' Subject: Re: [WISPA] Identifying 2ft dish frequency Ok, just checking. Good cover...grin Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:56 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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
Re: [WISPA] Identifying 2ft dish frequency
Feed length is based on dish size; where does the parabola focus. Nothing to do with frequency, everything reflects the same. Size of the feed horn isn't always an indicator either. Can depend on a lot of things. Josh Luthman wrote: The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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/ 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
Re: [WISPA] Identifying 2ft dish frequency
Are all parabolic grids the same visually? I would expect the mounting hardware to be most distingushable. Do you mean you can NOT depend on a lot of things, Scott? From what I've picked up on this thread is there is no real way to identify a dish nor feedhorn for polarity/frequency. Stickers are a must. Hear that manufacturers? Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 11:30 AM, Scott Reed scottr...@onlyinternet.netwrote: Feed length is based on dish size; where does the parabola focus. Nothing to do with frequency, everything reflects the same. Size of the feed horn isn't always an indicator either. Can depend on a lot of things. Josh Luthman wrote: The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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
Re: [WISPA] Identifying 2ft dish frequency
The feeds used on the Pac/Laird 2 dishes is 8.5 long from flange to the bottom of the feed. The new wide band feeds are a flat looking disk 5.75 in diameter. http://store.wisp-router.com/customkititems.asp?kc=DA5W%2D29eq=# Shows a picture of the old narrow band feed it's about 2 in diameter. You can see a picture of the wide band feed at http://store.wisp-router.com/customkititems.asp?kc=DA5W%2D32eq= It looks just the same on the 2ft dish even if I linked to the 3ft. If you need a wide band 5Ghz feed for the 2ft dish then this http://store.wisp-router.com/itemdesc.asp?ic=DA5W%2D29%2DFEEDeq=Tp= Should work assuming the length of the arm is correct. (not that the picture is the old style narrow band but the item we have in stock is actually the wideband, guess I need to make sure we get the picture updated for this item). On the wideband if the N-female connector is up/down then you are set for vertical and if the connector is to either side your set for horizontal. On the old style feed the connector is straight back and there should be markings on the base if this marking is up/down your in vertical, side either side it's horizontal. I want to recall it's just a notch or circular depression (do not have any of those feed left so can not verify). / Eje -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Mark McElvy Sent: Wednesday, October 21, 2009 10:22 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency I suppose the may not be pacwireless as I have determined they are 2.4 by hooking the up to a CM9 and when ap is in 5.8 I see nothing and when in 2.4 I can see. Now I just need to find 5.8 feedhorns to fit this dish. Mark -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 10:10 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Assuming they're Pac (not sure how that was determined) You know they are 2.4 or 5Ghz Eje just said: If these are Pacific Wireless dishes then they are 5GHz assuming these are solid dishes since Pac never produced a 2.4GHz feedhorn for their solid dishes at least during the 6+ years we been one of their distributors. Obviously it's 5GHz! Polarity is normally done with an arrow sticker on the base of the feedhorn. Of course if it's been out in the weather it's long gone. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 11:03 AM, Brad Belton b...@belwave.com wrote: BTW Mark, if you determine they are PacWireless antennas I'd just punt them on EBay and replace them with RadioWaves or Gabriel 2' antennas. In the long run you'll be a lot happier. Just my opinion... Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Brad Belton Sent: Wednesday, October 21, 2009 10:01 AM To: 'WISPA General List' Subject: Re: [WISPA] Identifying 2ft dish frequency Ok, just checking. Good cover...grin Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:56 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out
Re: [WISPA] Identifying 2ft dish frequency
They are not. Without markings or other things to reference by all you can do is measure current focal length and find a feed that matches that focal length or adjust the new feed to the same focal length because the parabolic curve determines where the focus point is on the dish/grid and different manufactures can have slightly different parabolic curve on theirs but one good thing is that a lot of grids and dishes sold on the market today are sourced from a few true manufactures so brand X dish might be the same as Brand Z the only difference between them is the feed itself where brand X makes their own and Brand Z uses the Chines developed/copied design. Most mfgs have some kind of marking or labeling on them but weather will kill the labeling over time and you have to rely on the markings but to understand the markings one have to know the make which might be as easy to figure out as trying to read the weather beaten label. / Eje -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 10:33 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Are all parabolic grids the same visually? I would expect the mounting hardware to be most distingushable. Do you mean you can NOT depend on a lot of things, Scott? From what I've picked up on this thread is there is no real way to identify a dish nor feedhorn for polarity/frequency. Stickers are a must. Hear that manufacturers? Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 11:30 AM, Scott Reed scottr...@onlyinternet.netwrote: Feed length is based on dish size; where does the parabola focus. Nothing to do with frequency, everything reflects the same. Size of the feed horn isn't always an indicator either. Can depend on a lot of things. Josh Luthman wrote: The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org
Re: [WISPA] Identifying 2ft dish frequency
Actually they did produce some 2.4GHz feeds but as far as I know they decided not to market them but Pac sourced their solid dishes from China and I know others that sold the same dish but the feeds many times where different and they brought out their own feed for the dish. So it might be same dish but branded different and sold with a 2.4GHz feed as I know there at least used to be others selling 2ft solid dishes with 2.4GHz feeds. But I know few that was interested in paying that much for a solid dish to use as a 2.4GHz backhaul or use a solid dish at a CPE. Most people if they used 2.4GHz for backhauling they where/are to cheap to use a solid dish or 5GHz radios so they all seem to go with cheap grid dishes or panels. / Eje -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 10:10 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Assuming they're Pac (not sure how that was determined) You know they are 2.4 or 5Ghz Eje just said: If these are Pacific Wireless dishes then they are 5GHz assuming these are solid dishes since Pac never produced a 2.4GHz feedhorn for their solid dishes at least during the 6+ years we been one of their distributors. Obviously it's 5GHz! Polarity is normally done with an arrow sticker on the base of the feedhorn. Of course if it's been out in the weather it's long gone. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 11:03 AM, Brad Belton b...@belwave.com wrote: BTW Mark, if you determine they are PacWireless antennas I'd just punt them on EBay and replace them with RadioWaves or Gabriel 2' antennas. In the long run you'll be a lot happier. Just my opinion... Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Brad Belton Sent: Wednesday, October 21, 2009 10:01 AM To: 'WISPA General List' Subject: Re: [WISPA] Identifying 2ft dish frequency Ok, just checking. Good cover...grin Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:56 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business
Re: [WISPA] Identifying 2ft dish frequency
Pac uses the same grid, some mount, for 2.4 and 5. Difference is the feed horn. Length of the feedhorn is the same as the focal point of the parabola does not change with frequency. Simple math on that one. The depends comment is that different performance parameters change the size of the feed. For example, Pac uses a 2 or so diameter feed in a 29dB grid and a 6 or so feed in the 2' dish, also about 29dB I believe. Josh Luthman wrote: Are all parabolic grids the same visually? I would expect the mounting hardware to be most distingushable. Do you mean you can NOT depend on a lot of things, Scott? From what I've picked up on this thread is there is no real way to identify a dish nor feedhorn for polarity/frequency. Stickers are a must. Hear that manufacturers? Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 11:30 AM, Scott Reed scottr...@onlyinternet.netwrote: Feed length is based on dish size; where does the parabola focus. Nothing to do with frequency, everything reflects the same. Size of the feed horn isn't always an indicator either. Can depend on a lot of things. Josh Luthman wrote: The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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
Re: [WISPA] Identifying 2ft dish frequency
I'll second that. I can't tell you how many pac dishes have either leaked water into the feed or have major problems with icing in the winter. I triple seal everything on my dishes and have had pac grids and solids somehow still get water into the center pin of the connector. I have no idea how it happens, but after about the 20th time, I just plain quit using them. I've never had this trouble on a Gabriel or Radiowaves dish and I apply the same sealing technique. Also, I've noticed in bench testing that that the Gabriel feeds have better SWR plots and provide MUCH better isolation between their dual pol feeds than the PAC. Cameron Brad Belton wrote: BTW Mark, if you determine they are PacWireless antennas I'd just punt them on EBay and replace them with RadioWaves or Gabriel 2' antennas. In the long run you'll be a lot happier. Just my opinion... Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Brad Belton Sent: Wednesday, October 21, 2009 10:01 AM To: 'WISPA General List' Subject: Re: [WISPA] Identifying 2ft dish frequency Ok, just checking. Good cover...grin Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:56 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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
Re: [WISPA] Identifying 2ft dish frequency
Right on. Did you know you can find the focal point, even of an off-center feed, of a solid parabolic by busting a mirror? Yeah, break a mirror into a thousand pieces. Use a glue stick or rubber cement to glue 30 - 40 of the pieces to the dish surface. Using a car headlight or really bright flashlight BEAM, you can posit a die (singular dice) or a crumpled up piece of paper in the dish focus and see the focal point. Cool stuff. It has nothing to do with frequency. A bright red light would work, so would a green one. Yep, even a gain microwave signal pointed at it would work; IF you could see microwaves. :-) It looks like Mark is rapidly answering his own question. Mike At 10:30 AM 10/21/2009, you wrote: Feed length is based on dish size; where does the parabola focus. Nothing to do with frequency, everything reflects the same. Size of the feed horn isn't always an indicator either. Can depend on a lot of things. Josh Luthman wrote: The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish and buying new feeds in the range you want unless you you have a few hours of extra time on your hands. Cameron Mark McElvy wrote: I have 4 two ft dishes that where pulled down when the previous wisp went out of business. There are no markings on them and I need to determine frequency and polarity. Mark McElvy AccuBak Data Systems, Inc. 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
Re: [WISPA] Identifying 2ft dish frequency
On Wed, 2009-10-21 at 10:00 -0500, Eje Gustafsson wrote: I cannot on top of my head recall how to determine the installed polarity of the feed but will go back to the warehouse to take a quick look to see how the feed needs to be installed for vertical and horizontal since it's impossible to tell by looking at the head of the feed on these dishes. It seems to me that when installed as vertical, the 2 bolts will be vertical (where you bolt the feed to the dish). Rotating it 90 degrees will make the bolts (and signal polarity) be horizontal . -- * Butch Evans * Professional Network Consultation* * http://www.butchevans.com/* Network Engineering * * http://www.wispa.org/ * Wired or Wireless Networks * * http://blog.butchevans.com/ * ImageStream, Mikrotik and MORE! * 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] Identifying 2ft dish frequency
On the PAC solids, as I recall, there is a bump on the feed that can go into one of two slots in the center hole of the dish. When the bump is vertical, the polarity is vertical. When the bump is horizontal, polarity is horizontal. Cameron Butch Evans wrote: On Wed, 2009-10-21 at 10:00 -0500, Eje Gustafsson wrote: I cannot on top of my head recall how to determine the installed polarity of the feed but will go back to the warehouse to take a quick look to see how the feed needs to be installed for vertical and horizontal since it's impossible to tell by looking at the head of the feed on these dishes. It seems to me that when installed as vertical, the 2 bolts will be vertical (where you bolt the feed to the dish). Rotating it 90 degrees will make the bolts (and signal polarity) be horizontal . 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] Identifying 2ft dish frequency
On Wed, 2009-10-21 at 14:31 -0500, ccrum wrote: On the PAC solids, as I recall, there is a bump on the feed that can go into one of two slots in the center hole of the dish. When the bump is vertical, the polarity is vertical. When the bump is horizontal, polarity is horizontal. That may be what I am remembering. I know there is something in the way it gets bolted to the dish that is a good indicator, but I can't remember what it is, exactly. -- * Butch Evans * Professional Network Consultation* * http://www.butchevans.com/* Network Engineering * * http://www.wispa.org/ * Wired or Wireless Networks * * http://blog.butchevans.com/ * ImageStream, Mikrotik and MORE! * 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] Identifying 2ft dish frequency
You're not thinking of the arrow sticker are you..? Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 4:35 PM, Butch Evans but...@butchevans.com wrote: On Wed, 2009-10-21 at 14:31 -0500, ccrum wrote: On the PAC solids, as I recall, there is a bump on the feed that can go into one of two slots in the center hole of the dish. When the bump is vertical, the polarity is vertical. When the bump is horizontal, polarity is horizontal. That may be what I am remembering. I know there is something in the way it gets bolted to the dish that is a good indicator, but I can't remember what it is, exactly. -- * Butch Evans * Professional Network Consultation* * http://www.butchevans.com/* Network Engineering * * http://www.wispa.org/ * Wired or Wireless Networks * * http://blog.butchevans.com/ * ImageStream, Mikrotik and MORE! * 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/
Re: [WISPA] Identifying 2ft dish frequency
On Wed, 2009-10-21 at 16:57 -0400, Josh Luthman wrote: You're not thinking of the arrow sticker are you..? The last one I actually got a close look at may have had a sticker, but I don't recall. There was something physical about how you installed it that was different for vertical/horizontal. -- * Butch Evans * Professional Network Consultation* * http://www.butchevans.com/* Network Engineering * * http://www.wispa.org/ * Wired or Wireless Networks * * http://blog.butchevans.com/ * ImageStream, Mikrotik and MORE! * 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] Identifying 2ft dish frequency
I bought some gabriel dishes probably 8-10 years ago, and they all failed, so gabriel gave us a deal on new feedhorns, and most of them have since failed too. Perhaps things are better now. We had one fail this past winter, and just took it off the tower this summer. We just tossed the dish and feedhorn in the grass and forgot about it. I'm not going to buy another feedhorn for it. We're mostly using pacwireless for dishes as a result. We've had a few of them fail a couple years ago, but they've fixed that, and percentagewise, they've been more reliable. A radome also protects the feedhorn quite well, and we use a radome anytime where we are near the ocean or are being careful not to overload a tower, as the radome both protects the feedhorn and reduces windloading. We also only buy the dual pole ones now. We'd started to for the trangolink45's which can switch polarity with software. Now, it looks like 2x2 MIMO based products are the future for backhaul, and we'd like to not have to upgrade antennas with the radios. If you use a radome, you have to actually disassemble the thing to change feedhorns, so do it right the first time. The Gabriels are a lot lighter due to their all alloy construction. On Wed, Oct 21, 2009 at 11:38:17AM -0500, ccrum wrote: I'll second that. I can't tell you how many pac dishes have either leaked water into the feed or have major problems with icing in the winter. I triple seal everything on my dishes and have had pac grids and solids somehow still get water into the center pin of the connector. I have no idea how it happens, but after about the 20th time, I just plain quit using them. I've never had this trouble on a Gabriel or Radiowaves dish and I apply the same sealing technique. Also, I've noticed in bench testing that that the Gabriel feeds have better SWR plots and provide MUCH better isolation between their dual pol feeds than the PAC. Cameron Brad Belton wrote: BTW Mark, if you determine they are PacWireless antennas I'd just punt them on EBay and replace them with RadioWaves or Gabriel 2' antennas. In the long run you'll be a lot happier. Just my opinion... Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Brad Belton Sent: Wednesday, October 21, 2009 10:01 AM To: 'WISPA General List' Subject: Re: [WISPA] Identifying 2ft dish frequency Ok, just checking. Good cover...grin Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:56 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went out of business. Mark McElvy AccuBak Data Systems, Inc. 573.729.9200 - Office 573.729.9203 - Fax 573.247.9980 - Mobile http://www.accubak.com/ http://www.accubak.net/ Nationwide Internet Access Accurate backups for your critical data! -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of ccrum Sent: Wednesday, October 21, 2009 9:29 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Got a spectrum analyzer and a frequency generator? Or a good network analyzer will do, but most people don't have one laying around. The feeds could literally be anything. You might be better off just calling the MFG of the dish
Re: [WISPA] Identifying 2ft dish frequency
The problems with the Gabriel 2' dual polarity dishes has been fixed. Chances are you only saw these issues because you were not using radomes. The epoxy or whatever sealant they were using at the tip of the feedhorn to hold the end cap on was breaking down and the feedhorn would wick moisture when the feedhorn temp would change hot to cold and back. We had quite a few failures but none with radomes because there was no direct moisture contact with the end. Still use them to this day with no issues. -B- Sent from my Verizon Wireless BlackBerry -Original Message- From: jp j...@saucer.midcoast.com Date: Wed, 21 Oct 2009 17:42:32 To: WISPA General Listwireless@wispa.org Subject: Re: [WISPA] Identifying 2ft dish frequency I bought some gabriel dishes probably 8-10 years ago, and they all failed, so gabriel gave us a deal on new feedhorns, and most of them have since failed too. Perhaps things are better now. We had one fail this past winter, and just took it off the tower this summer. We just tossed the dish and feedhorn in the grass and forgot about it. I'm not going to buy another feedhorn for it. We're mostly using pacwireless for dishes as a result. We've had a few of them fail a couple years ago, but they've fixed that, and percentagewise, they've been more reliable. A radome also protects the feedhorn quite well, and we use a radome anytime where we are near the ocean or are being careful not to overload a tower, as the radome both protects the feedhorn and reduces windloading. We also only buy the dual pole ones now. We'd started to for the trangolink45's which can switch polarity with software. Now, it looks like 2x2 MIMO based products are the future for backhaul, and we'd like to not have to upgrade antennas with the radios. If you use a radome, you have to actually disassemble the thing to change feedhorns, so do it right the first time. The Gabriels are a lot lighter due to their all alloy construction. On Wed, Oct 21, 2009 at 11:38:17AM -0500, ccrum wrote: I'll second that. I can't tell you how many pac dishes have either leaked water into the feed or have major problems with icing in the winter. I triple seal everything on my dishes and have had pac grids and solids somehow still get water into the center pin of the connector. I have no idea how it happens, but after about the 20th time, I just plain quit using them. I've never had this trouble on a Gabriel or Radiowaves dish and I apply the same sealing technique. Also, I've noticed in bench testing that that the Gabriel feeds have better SWR plots and provide MUCH better isolation between their dual pol feeds than the PAC. Cameron Brad Belton wrote: BTW Mark, if you determine they are PacWireless antennas I'd just punt them on EBay and replace them with RadioWaves or Gabriel 2' antennas. In the long run you'll be a lot happier. Just my opinion... Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Brad Belton Sent: Wednesday, October 21, 2009 10:01 AM To: 'WISPA General List' Subject: Re: [WISPA] Identifying 2ft dish frequency Ok, just checking. Good cover...grin Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:56 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency The feedhorn specifically. Maybe the length will help you too. I know with higher gain the 5GHz grids are noticeably longer. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:48 AM, Brad Belton b...@belwave.com wrote: Hmmm, pretty sure a 2' dish is a 2' dish regardless of frequency...or are you speaking of the diameter of the feed? Best, Brad -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Josh Luthman Sent: Wednesday, October 21, 2009 9:40 AM To: WISPA General List Subject: Re: [WISPA] Identifying 2ft dish frequency Can you measure diameter and compare it with the 2.4 and 5.8 GHz dishes? Never thought about it but they would have to be different sizes. Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle On Wed, Oct 21, 2009 at 10:34 AM, Mark McElvy mmce...@accubak.com wrote: I happen to know they are either 5.8 or 2.4 as this was the only equipment I have found of theirs, they left it all when they went
