Question 1

Can this antenna be used on a gmrs radio

Accepted Answer

I am amateur radio operator N8VJM. I use antennas like this one and its "Big Brother" the 8' (co-phase) version. They tune up well enough to be used on 2 m (144-148 MHz Amateur Radio Band) a-well-as on 70 cm (420–450 MHz Amateur Radio Band). I run up to 50 watts without damaging the finals in my transceivers and more power with external amplifiers. GMRS and FRS have many channels at power levels of 5 w and lower, but some are as high as 50 w. Don't be fooled by thinking that SWR readings are an accurate measure of how useful an antenna and transmission line system are. The gain you achieve with a 46" antenna (in this case) should far outweigh the losses of the mismatch (as shown by higher-than-normal SWR) versus a 6.3" plain whip intended for GMRS/FRS use. I don't gamble, but I would be willing to bet money that people in-the-know (experienced radio operators, techs, and engineers) are using similar antennas successfully. The seller cannot recommend that you try using this antenna OOB (out-of-band) because they would then be liable if it didn't work well for you or damaged your equipment. You might even try a split ferrite bead about 6 or 7 inches down the coax from the antenna. It should serve to lower your SWR to protect your finals and may even improve performance. Bottom line, this is a $40-something antenna. I think you can probably shell out that much for an experiment. Worse case scenario, sell it on eBay for just about what you paid for it (if it doesn't work well for you).

Question 2

why does this antenna require a battery?

Accepted Answer

It does not require a battery.  The description is wrong.

Question 3

Does it work as FM antenna with the combination adapter?

Accepted Answer

Yes you can buy a splitter for your FM reception needs

Question 4

Will this work with a uniden um380bk?

Accepted Answer

Yes it will.

ASIN	B00E48AFCM
AntennaDescription	Radio
Best Sellers Rank	#19 in Marine Antennas
Brand	Tram
Built-In Media	product
Color	White
Customer Reviews	4.5 4.5 out of 5 stars (1,461)
Global Trade Identification Number	00727932012641
Impedance	50 ohm
Item Dimensions L x W x H	1.5"L x 1.5"W x 46"H
Item Type Name	two-way antenna
Item Weight	1.9 pounds
Manufacturer	Tram
Maximum Range	50 miles
Mfr Part Number	1607-HC
Model Number	1607-HC
Number of Channels	46
Number of Items	1
Number of Packs	1
UPC	803983008564 782386052858 012304702108 696582190200 731215347030 807035646155 809394252497 617407282962 088021270473 765042364731 021111954525 727932012641 132018546574 734911363854 767887420054 696582493202
Unit Count	1 Count
Warranty Description	1 year

Tram® Pretuned VHF 3-dBd-Gain Marine Rachet-Mount 46-in. Fiberglass Antenna with RG58 Cable and FME-Female Connector with PL-259 Adapter

Details

Details

Description

Specifications

Common Questions