# Omni antennae recommendations

**URL:** <https://community.na.baicells.com/t/omni-antennae-recommendations/239>\
**Category:** Uncategorized\
**Created:** [February 21, 2017, 7:07pm UTC](https://community.na.baicells.com/t/omni-antennae-recommendations/239 "2017-02-21T19:07:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Samuel\_Smith](https://sea2.discourse-cdn.com/flex016/user_avatar/community.na.baicells.com/samuel_smith/32/67_2.png) [@Samuel\_Smith](https://community.na.baicells.com/u/Samuel_Smith)\
**Post date:** [February 21, 2017, 7:07pm UTC](https://community.na.baicells.com/t/omni-antennae-recommendations/239/1 "2017-02-21T19:07:13Z")

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I am new here and to the Bai-cell product. I plan to set an omni antenna on top of a 20 foot pole on top of a fire tower. I did not want to put the radio that high for reasons of wind and impossibility to get at. The 2 questions I have are recommendations for an omni, and is 24 foot too far separation for the radio and if not recommendations for a cable?

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**Author:** ![DigitalWeb](https://avatars.discourse-cdn.com/v4/letter/d/839c29/32.png) [@DigitalWeb](https://community.na.baicells.com/u/DigitalWeb)\
**Post date:** [March 11, 2017, 2:57am UTC](https://community.na.baicells.com/t/omni-antennae-recommendations/239/2 "2017-03-11T02:57:38Z")

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For the omni antenna, we currently have an alpha but will be also trying a KP at our next site. It has to be dual pol and 45\* slant so they are bigger than normal.

The run is only too long if you don’t have the cable for it. Calculate here: [http://www.timesmicrowave.com/calculator/](http://www.timesmicrowave.com/calculator/)?  
With an LMR 400 at 3.7 Ghz you are losing about 2.5 dB. You decide how much is too much.

Better cable costs more and is bigger/heavier.

What if you have to get to the omni? Same difference. You can always run the maintenance port down to a box in case you have to plug in, but I suspect you won’t.