Tram 1480 vs 1486 Antenna and Channel Pick

[aarondong2005]

Hi guys, I already have Motorola MTR2000 for my repeater build. Now I need a high gain antenna for it. One of my friend already using 1480 for his GR1225 and he told me it is better than 1480. But after I check I find out the 1486 is for GMRS not the 1480. So which should I pick? I need someone have really life experience not just on the paper. 

 

The repeater will be located in Upland, California. Channel 16, 20, 22 can not be use. Which channel should I pick?

 

Thanks! 

[JohnE]

I would personally spend some time listening to the channel before deciding. I spent days listening in the site where my machine resides before putting it on the air.

As to the antenna the 1486 would be the choice as it is a strait up UHF antenna. I'm not a fan of the Tram/Comet antennas but they seem to be popular w/HAM's, then again I live in the LMR/PS world.

what is the plan for cable?

These are what I'm using. Not cheap and will last 20+ yrs on a site barring physical damage.

https://d3ciwvs59ifrt8.cloudfront.net/3d2faca2-b31b-426a-8e30-d282d46d987b/8b99adb0-0d32-46b0-9f42-8c4580c6e3d2.pdf

[gortex2]

I wouldn't install a TRAM antenna on a good repeater such as a MTR. Order a DB404 or 408 for the repeater if you want good performance. What does it have for a duplexer ? 

 

https://www.theantennafarm.com/catalog/index.php?main_page=product_info&products_id=4267

 

https://www.theantennafarm.com/catalog/index.php?main_page=product_info&cPath=191_193_258_1098_1099&products_id=4268

 

I'd go with the DB408 personally but I do run a few DB404 on small GR style repeaters. Don't skimp on hardline either. 

[aarondong2005]

After did some research I am thinking about Laird FG4507 or the Comet CA-712EFC now. Thank you for the recommendation, but the DB404 or 408 is too big for our business building. 

 

For the duplexer, I am thinking about getting the Celwave UHF 50w. 

[gortex2]

You need to check programming on the base. Standard was 100 watts so it will need turned down. You should get a real bandpass reject and not a mobile duplexer for it.