Kind of a rant, I guess...

[OkieBoyKJ5JFG]

For mobile stuff, the only antennas I use are the public safety antennas. There will be no hammy grade anything touching my cars. They perform well, are built well, and you can beat the hell out of them all day and they just keep working like brand new.

I only need two mobile antennas at most, so the cost isn't a big deterrent unless it's in the high three digits. But aren't commercial antennas usually single-band? I need one that covers at least 2m and 70cm.

 

[EAFrizzle]

A 2M 1/4 wave is a 3/4 wave on 70cm.

 

[mmckenna]

But aren't commercial antennas usually single-band? I need one that covers at least 2m and 70cm.

No, there's a lot of multiband radios on the market now.

Larsen makes dual band antennas for both the amateur radio bands as well as the LMR bands.

I ran one of these for about 20 years, then gave it to my brother in law and he's been using it for about 10:

Larsen NMO2/70SH Premium Larsen 2m/70cm Amateur Ham Radio Antenna Short Dual Band

Larsen NMO2/70SH Premium Larsen 2m/70cm Amateur Ham Radio Antenna Short Dual Band

theantennafarm.com

This one is quite popular:

Larsen NMO2/70B Premium Larsen 2m 70cm 144 440 Amateur Ham Radio Antenna Dual Band

Larsen NMO2/70B 2m 70cm 144 440 Amateur Ham Radio Antenna Dual Band Larsen

theantennafarm.com

More options:

Amateur Ham Radio144-148/440-450 MHz Dual Band TE Connectivity C144/440C

Laird TE Connectivity C144/440C 144-148/440-450 MHz Dual Band Amateur Ham Radio Antenna - 2/5 db Gain - NMO

theantennafarm.com

Laird Technologies C144/440CS Dual Band 144-148/440-450MHz Mobile Antenna w/Sp

Laird TE Connectivity C144/440CS 144-148/440-450 MHz Dual Band Amateur Ham Radio Antenna - 2/5 db Gain - Spring Base - NMO

theantennafarm.com

Laird TE Connectivity CB144/440C 144-148/440-450 MHz Dual Band Amateur Ham Radio Antenna - 2/5 db Gain - NMO - Black

Laird TE Connectivity CB144/440C 144-148/440-450 MHz Dual Band Amateur Ham Radio Antenna - 2/5 db Gain - NMO - Black

theantennafarm.com

I've been running a multband radio in my truck for the last couple of years. Radio covers VHF, UHF, 700 and 800MHz for my work stuff. I have 2 meter and 70 centimeter simplex and local repeaters programmed into it.

I've been running these antennas on my personal truck and work truck for about 3 years now. They are designed around the commercial/public safety spectrum, but they work just fine on 2 meters and 70cm.

EM Wave EM-M43002 Tri-Band 150-162/450-490/763-870 MHz Mobile Antenna - 17.7 in - NMO - Spring Base

EM Wave EM-M43002 Tri-Band 150-162/450-490/763-870 MHz Mobile Antenna - 17.7 in - NMO - Spring Base

theantennafarm.com

Larsen NMO150/450/758SF Tri-band Mobile Antenna covers 150-174, 430-520 & 750-870, 100 Watts, Length 16.5 in, NMO Mount, Spring Base

Larsen NMO150/450/758SF Tri-band Mobile Antenna covers 150-174, 430-520 & 750-870, 100 Watts, Length 16.5 in, NMO Mount, Spring Base

theantennafarm.com

Larsen NMO150/450/758 Tri-band Mobile Antenna covers 150-174, 430-520 & 750-870, 100 Watts, Length 16.5 in, NMO Mount, Spring Base, Solid Black

Larsen NMO150/450/758 Tri-band Mobile Antenna covers 150-174, 430-520 & 750-870, 100 Watts, Length 16.5 in, NMO Mount

theantennafarm.com

Larsen NMO150/450/800 Tri-Band 150-165, 450-470 & 806-940 MHz Mobile Two Way Radio Antenna Scanner

Larsen NMO150/450/800 Tri-Band 150-165, 450-470 & 806-940 MHz Mobile Two Way Radio Antenna Scanner

theantennafarm.com

All of those antennas have been run on the tops of 4x4 1 ton trucks, up and down overgrown access roads and taken a lot of tree branch hits. No issues with any of them.