# Max Range with 5.7Ghz (5700) SM

**URL:** https://community.cambiumnetworks.com/t/max-range-with-5-7ghz-5700-sm/32949
**Category:** PMP
**Created:** [March 6, 2008, 3:14am UTC](https://community.cambiumnetworks.com/t/max-range-with-5-7ghz-5700-sm/32949 "2008-03-06T03:14:26Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![greggsmithjr](https://d10gw3vjmzyp8.cloudfront.net/letter_avatar_proxy/v4/letter/g/dec6dc/32.png) [@greggsmithjr](https://community.cambiumnetworks.com/u/greggsmithjr)
#### Post date: [March 6, 2008, 3:14am UTC](https://community.cambiumnetworks.com/t/max-range-with-5-7ghz-5700-sm/32949/1 "2008-03-06T03:14:26Z")

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I need to go out 25-30 miles … is there anyway to accomplish this with the 5700SM? I think the dish is only rated for 10 miles … is that correct?  
  
Thanks,  
Gregg

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### Author: ![Jerry\_Richardson](https://d10gw3vjmzyp8.cloudfront.net/letter_avatar_proxy/v4/letter/j/eada6e/32.png) [@Jerry\_Richardson](https://community.cambiumnetworks.com/u/Jerry_Richardson)
#### Post date: [March 6, 2008, 3:28am UTC](https://community.cambiumnetworks.com/t/max-range-with-5-7ghz-5700-sm/32949/2 "2008-03-06T03:28:37Z")

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Successful link at 20mi using an Advanced Antenna WARM32.  
  
5750AP using internal antenna at 3450’, clear LOS, no ground clutter.  
  
Link was was pretty close to the edge, but I think there may have been another 3dB in there which would get you to 30 miles.

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### Author: ![jwelch](https://d10gw3vjmzyp8.cloudfront.net/letter_avatar_proxy/v4/letter/j/b2d939/32.png) [@jwelch](https://community.cambiumnetworks.com/u/jwelch)
#### Post date: [March 6, 2008, 2:17pm UTC](https://community.cambiumnetworks.com/t/max-range-with-5-7ghz-5700-sm/32949/3 "2008-03-06T14:17:57Z")

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I have a 14.25mi. link to one of our customers (clear LOS in a hilly area) using a 27RD Canopy reflector w/ 79dBm pwr., jitter 2-4, and a 100% link test. However I’ve got a WARM-32R in the shop that I am itching to deploy. 😉

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### Author: ![greggsmithjr](https://d10gw3vjmzyp8.cloudfront.net/letter_avatar_proxy/v4/letter/g/dec6dc/32.png) [@greggsmithjr](https://community.cambiumnetworks.com/u/greggsmithjr)
#### Post date: [March 6, 2008, 5:30pm UTC](https://community.cambiumnetworks.com/t/max-range-with-5-7ghz-5700-sm/32949/4 "2008-03-06T17:30:47Z")

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On another thread ([http://motorola.canopywireless.com/supp … hp?p=19201](http://motorola.canopywireless.com/support/community/viewtopic.php?p=19201)) … folks discussed the 27RD vs. the grids. They said the 27RD is better because the grids have poor front-to-back isolation compared to a solid reflector.   
  
Anyone else compare these – it would be great to get add’l comments.

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### Author: ![along5664](https://d10gw3vjmzyp8.cloudfront.net/letter_avatar_proxy/v4/letter/a/13edae/32.png) [@along5664](https://community.cambiumnetworks.com/u/along5664)
#### Post date: [March 6, 2008, 6:37pm UTC](https://community.cambiumnetworks.com/t/max-range-with-5-7ghz-5700-sm/32949/5 "2008-03-06T18:37:22Z")

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I had a setup with a rd27 and had issues with it, could only get about -76 db signal level and dropped signal all the time. I replaced the dish with the warm 32 and now sitting at -68 db signal. Solid signal now and no drops since installing it. I have also used the warm 18 at another location that had a stinger and I gained ab -4db signal at that site.  
  
Also have used the grid from pac wireless, replaced a site that had a stinger(getting about -77db signal) with a pac wireless 26 db gain grid and only went to about -74db signal. Have since replaced that with a ptp400 link, due to bandwidth needs.  
  
Just my two cents worth. For me the grids from advanced have been great…
