Hard to tell from the pics, but that black thing is the AM loop antenna. For FM you need one of these
The telescopic won't be much better. A dipole is optimum for indoor use:
If you already are using one of these and it's not optimal, then either an attic antenna or roof mount:
Flat water is a great conductor of radio waves. Drive down to the water, late at night, and tune your AM radio to a station there. It will probably be coming in loud and clear.
105mi is a bit of a trip for during the day and especially on FM, but if you have a receiving antenna like a dipole you might be able to tune in. (Not affiliated with that Amazon seller, it was just the first link that came up for dipole. Super easy to make one of your own.)
Lastly, radio stations in Cuba are available on livestream. Unless the US government blocks it, of course.
I listen to KNBR mostly but occasionally I get tickets from my clients. I also go with OTA broadcast TV. Giants get around 20+ games on broadcast TV between NBC local and FOX Saturday games. I think FOX games are flex and toward the end of the season if there is a pennant race they will add the Giants.
The season broadcast schedule has not been announced yet but here is the link SF Giants Broadcast Schedule
Check out TVFool.com to see if you can get the games over the air at your locale. The broadcast TV is now in hi-def digital and the quality is excellent. You don't need an expensive antenna with an amp & etc. In fact, in the Bay Area NBC broadcasts on the lower frequency VHF channel and you can actually pick that up with a cheap FM antenna plus a transformer called a balun Attach the FM antenna to the balun and plug the balun into the coax input to your TV, change the settings to broadcast/air and scan for channels and you should get NBC. If you wanted FOX you'd have to get a "real" antenna because they broadcast on UHF and the FM antenna won't pick that up but you could get a cheap indoor antenna and see what you get. If you check the broadcast schedule there are couple of ST games on NBC so you could give it a try and get things hashed out in time for real games.
As already mentioned, rabbit ears. Relevant:
Since ch 6 is right beside the FM band, a common hack used in your area is to get an FM antenna for that channel. Here is an example with an example matching transformer:
If that actually works you could combine it with a working UHF antenna using a device called a UVSJ.
>I want to avoid large external antennas.
Is the attic a possibility then? unfortunately, VHF-low capable antennas with gain tend to be large.
According to this:
... the optimal rabbit ear length for real ch 5 is 83" for the V configuration and 80" for the ears set flat (horizontal). That's pretty wide. So you probably want something relatively large and substantial. You can shop at your favourite discount store.
If you don't mind messing around, because real ch 5 is close to the FM radio band, you could try using an FM antenna for ABC. Such a thing might be easier to deal with. Example:
I bought one of these and cut it down for 144.39Mhz (22.5in IIRC) for APRS:
https://www.amazon.com/Parts-Express-FM-Dipole-Antenna/dp/B000M9EREE
If you want another range you can cut accordingly.
Don't forget the F type balun:
and an adapter to fit on your rtlsdr:
So I thought it was a single wire but it turns out it's not.
Here's what the connector looks like. Is this the correct type of antenna to get?
Real CH2 and CH6 are down near the FM frequency range, your antenna won't even see those signals. Your signals are strong enough that an FM antenna would probably work and you don't need the amp. I'd get a FM folded dipole antenna (the T-type that you tack to the wall) like THIS and connect it to a Balun like THIS and then use a regular two-way coax splitter like THIS to combine the signals from the FM antenna and the 1ByOne into the TV/Tuner.
Rabbit ears are what one normally uses for VHF-low channels indoors.
Channel 6 is right beside the FM band so FM antennas should work for it. Example:
Note that you will probably have a problem combining an amplified antenna with anything else. The higher signal produced by the amplifier will tend to swamp out the signals on the other antenna.