Improve Sony CMT-SBT100 Mini Tower Radio Reception: Antenna Replacement, Amplifier, Adapter

Hi,

I have a small problem, so the radio in the Sony CMT-SBT100 mini tower receives very little. My guess is that this is due to interference around the antenna and poor quality .. Maybe you know a fairly simple way to improve performance? The antenna is a regular cable, but there is no other input than this serial "socket".

I could connect the tower to the terrestrial antenna, but is it possible to do it without interfering with the equipment (it is still under warranty) and connect it all, e.g. via some adapter?

Maybe there is some amplifier or replacement for this antenna that will improve the operation?

I searched allegro, but I didn't find anything sensible ...

A few pics:

It seems that the top two pins in this plug are responsible for connecting the antenna to medium waves, and the bottom pin for connecting a single cable to the FM antenna.
For common sense, you can try to extend the cable that is connected to the bottom pin in the plug. What will be the effect - it is difficult to assess - the manufacturer does not provide impendance, etc.
It doesn't make sense to connect to a terrestrial antenna because it is a different frequency range.

The antenna in the photo is AM / FM (two pins for the loop as AM and cable as FM. You can connect to the cable in this way: isolate the end of the FM cable and connect with the middle cable wire from the cable.

First of all, you don't write what transmitters you want to receive and where and in what polarity.
for FM this is a single cable and its length is very important - about 150 cm
and it depends on which transmitter to receive it should be fully upright and either perfectly horizontally and perpendicular to the transmitter, or perfectly vertical.

Yes, I meant FM. The topic returned because I can't receive these frequencies well.

I tried to position this FM wire well and many different strange ways. Unfortunately it doesn't help.

Is there any FM signal booster?

You have tried with some room antennas - they are available in supermarkets. I have a problem with that the antenna is missing and trying to play it. I already have TME plugs available. I checked the plug parameters with the antenna from the second radio I had previously bought. They sell the plug and clamp separately. In the tme .eu store they are in bulk but after their symbol you will find the Symbols detail below. You can buy something bigger and crimp on this plug.

I still have a question, maybe colleagues watching this post will tell me how to check the cable parameters to choose the same. As I mentioned earlier, I have the original antenna from the second set. It is about 150cm. All I need is an FM antenna, so I have the plug like the picture and only one 1.5m cable. I have a multimeter will definitely be useful, however ... continuation is not my strong point and I'm not sure what to measure.


TME symbol: MX-5264-03
TME symbol: MX-5263-PBT

I'm piggybacking on this topic because I have a Sony tower from the same CMT series (CMT-S40D). The set includes a piece of cable like this:


The output in the tower looks like this:


The signal on some stations is weak (there is noise in the background), but when I move this cable or move the tower, it sometimes improves, how to improve this "antenna"? I don't want any external ones.
Thanks in advance for your answers

Something like this, but it's not an antenna - you can make such a calculated DIY antenna yourself.

From the electrical side, in this Sony, the second pin of the socket is grounded..

HD-VIDEO wrote:

From the electrical side, in this Sony, the second pin of the socket is grounded..

So, does it stay free or will the connection end in the antenna you have connected?

It should be connected to the outer ring of the RF plug.

I don't know if there is any adjustment in the plug to the 75Ω wave impedance of the antenna inputs, but in the case of this tower there is nothing at the antenna input - simplified as much as possible