What is the allowed maximum coaxial cable length for an HFC connection?

Question

Iron

Good afternoon.
My internet (1 GB) goes through HFC (Hybrid Fiber Coaxial) connection. There is a socket in the wall, where a modem is connected using a coaxial cable, to which, in turn, a router is connected via a UTP cable. The modem comes with a 1.2 m coaxial cable. The fact is that the location of the outlet is not very good and I would like to remove the modem away.
But a number of issues arose with the coaxial cable:

1. What is the maximum length possible so that this does not affect the connection speed (10 m would be enough for me)?
   
2. Is it possible to use a regular "antenna" cable if it is RG-6 brand or there are nuances (an RG-6 cable in an electrical store is much cheaper than, again, an RG-6 cable in a computer equipment store)?
   
3. Does it make sense to shell out for an RG-11 at my distance?
   
4. Is it possible to use any connectors or, again, are there nuances?
   

The cable that comes with the kit looks like an ordinary rigid non-name coaxial cable without any marks, and even with the simplest connectors.

Answer 1

The RG-6 broadcasts quite far (hundreds of meters), and the RG-11 only makes sense if you need more than a kilometer, outdoor work, or difficult conditions. So 10 meters should be no problem.

Is it possible to use a regular "antenna" cable if it is RG-6 brand or there are nuances (an RG-6 cable in an electrical store is much cheaper than, again, an RG-6 cable in a computer equipment store)?

Hmm, really hard to say. RG-6 should naturally fit - the marking actually shows that it fits, but you probably need to specify the resistance (maybe 50 or 75 ohms) to match the equipment. The difference in price may be due to the implementation - shell materials, some kind of protective braided layer.
> Does it make sense to fork out for an RG-11 at my distance?
absolutely not. Moreover, it is inconvenient to lay RG-11 in an apartment.
> Is it possible to use any connectors or, again, are there nuances?
Crimping a coax without experience is not too easy - compared to optics it is easier, compared to twisted pair it is more difficult. I would take better connectors to make it easier to crimp. And with a margin, if it doesn’t work from the first compression.

Answer 2

It all depends on the transceiver, they determine the requirements for the transmission medium and performance.
The standard that has been defined for caoxial means 10 Mbit seems to be 200 meters, i.e. the most seedy cable will give such speeds, they write here up to 500, and by the way, if you have equipment , you can even 300 Mbps

Answer 3

cable its characteristic impedance per hundred meters also pay attention to the reverse channel amplifiers go to the modem admin panel and see the signal level in short, ten years ago I was engaged in calculations from your modem to the amplifier no more than 300 meters