Tram 3500

[Ensnared]

I have owned several Tram 3500 CB antennas. These come with a 5-inch magnetic mount covered by a rubber boot.

I mentioned that this antenna has been used on two Toyotas without any scratches whatsoever; however some RR operators disagreed with me.

I have had this antenna on my 2010 Corolla for over two years. Today, I proved my contention. I waxed the top of my car and found that I was indeed right about this antenna. I now have photographs showing the unscratched top of my car. The proof is in the pudding.

I always have a backup antenna. However, this model is hard to find. The newer models are using a 4-inch magnetic antenna. I am sticking with the 5-inch.

When I was searching for another version of the 3500, I found this little fella.

I am guessing you need to be the stinger with this antenna. I don't know if this means you have to use a Firestick or what.

Any help?

Tram- CB 5" Magnet Mount Antenna (Black) (240-B) (solidsignal.com)

 

[GrayJeep]

If "you need to be the stinger with this antenna" was intended to convey - you have to supply the whip element to this antenna.....


It means any antenna with 3/8x24 threading at the base end will thread into the mag mount.
In the ham radio world at least you can buy various antennas that thread into such a base. (I just bought 3)

Search on mobile CB antennas and look closely at the specs for the mounting type. (choices are usually NMO, SO239, and 3/8x24)

 

[Ensnared]

Oh, this is rich. Again, my poor editing skills and dyslexia surfaced. I am rather embarrassed. Thanks for the teasing along with the information. I suppose you can buy 11 meters for CB. Or, there is not an appreciable difference between 10 and 11 meters. I am not a Ham operator.

 

[slowmover]

Grist for the mill.

He who says nothing has nothing to say.

 

[GrayJeep]

The difference between 11 meters and 10 meters is...... 1 meter! That's the wavelength of those bands.

Seriously, a 10m antenna would likely be a bit shorter than one intended for 11m (CB) but in some quick searches I think I saw one that alleged to do both. And it's possible that a 10m whip element (such as might be on a base coil design) might be delivered a bit long to allow for some trimming to get it to resonate where desired.

From there I don't know a perfect answer. Maybe trying to re-use that magnet base is a lost cause?

 

[Ensnared]

I saw a similar Tram magnetic base at Troy Two-Way Radio near Temple. However, it was only the base. It may have been NMO. I will return to see if this is the case. In the past, Texas DPS used K40 (model) antennas. I loved this antenna. But, if you hit something with it, the plastic below the metal bottom of the antenna would crack. The other issue with this antenna was the magnetic mount that could be attached to the trunk lip. This antenna was horrible, "antenna rash" on top of the car.

 

[Ensnared]

The difference between 11 meters and 10 meters is...... 1 meter! That's the wavelength of those bands.

Seriously, a 10m antenna would likely be a bit shorter than one intended for 11m (CB) but in some quick searches I think I saw one that alleged to do both. And it's possible that a 10m whip element (such as might be on a base coil design) might be delivered a bit long to allow for some trimming to get it to resonate where desired.

From there I don't know a perfect answer. Maybe trying to re-use that magnet base is a lost cause?

I saw a similar Tram magnetic base at Troy Two-Way Radio near Temple. However, it was only the base. It may have been NMO. I will return to see if this is the case. In the past, Texas DPS used K40 (model) antennas. I loved this antenna. But, if you hit something with it, the plastic below the metal bottom of the antenna would crack.

The other issue with this antenna was the magnetic mount that could be attached to the trunk lip. This antenna was horrible, "antenna rash" on top of the car.

From what I hear, K40 is no longer around.

By the way, let me see how well you and others remember things. Does anyone recall having a Signal Kicker in the seventies?