coax for 800mhz mobile install

[n3obl]

What would you recomend for a 800 scanner install. Ive seen the 800 antennas kits from motorola have rg-58 in them.

Need a length about 20 feet. want to put antenna on rear roof of a chevy tahoe.

Frank

 

[n5ims]

Try to get the Larsen NMO HF mount that uses their UD coax specification (LMR-200). The HF is their "High Frequency" mount that's backwards compatible to the normal NMO mount so it'll work with antennas designed for either the old or new spec. The UD coax is their RG-58 double shield "low loss" cable, that is actually LMR-200. The mounts are available in both normal and thick sizes so most normal installs can be done. Nearly all NMO antennas will work with them and the normal Larsen NMO accessories can be used.

 

[deadringer]

can you recommend a place that sells that mount? I can't find it anywhere...

 

[n5ims]

Using Google I found these places:

Search Advanced Mfg Part
Bill's 2 Way - Larsen Antenna and Accessories (see item LAR-NMO-K-UD-FME - has an FME connector that you may need to cut off and replace with what you need)
Larsen NMOKHFUD Hi-Freq NMO Mount – 17' Dual Shield w/o Connecto - NMO Mounts - Icom, Laird, Pulse/Larsen, Polyphaser - Kollman Radio Electronics

 

[Gcom]

Know this thread is old but some new info anyway. Good call N5MIS on the dual shield coax.

Welcome to Times Microwave | Coaxial Cable - Attenuation & Power Handling Calculator (Online Coax Calculator) Pretty neat
Search Results : The Antenna Farm :: , Your Two Way Radio Source!
( These are the type of coax that should be utilized , dual shield) .
RG142 Coaxial Cable Video: Allied Wire & Cable Product Spotlight - YouTube (Feedline Video)
Also some antenna recommendations receiving test only )
https://www.scannermaster.com/Laird_B8065_Antenna_806_866_MHz_5db_Gain_p/20-540972.htm
This antenna outperformed all other sit was tested against on 800 mhz, Antenex,Comtelco, Larsen, Maxrad (non base loaded ).
The PCTEL/ Antenna Specialists on Glass performed equally as well on 800 mhz.