How to change Receive [RX] and Transmit [TX] levels

make7upyoursman · Post by **make7upyoursman** » Sat Jul 13, 2002 2:30 pm

I would like to know how to change my Receive [RX] and Transmit [TX] levels to an RX of 5 and a TX of 47.

Note: THIS IS NOT CABLE MODEM UNCAPPING IT IS SIMPLY CHANGING THE FREQUENCY WHICH THE MODEM RECIEVES AND TRANSMITS. IT JUST PROVIDES BETTER MODEM PERFORMANCE.

mnosteele52 · Post by **mnosteele52** » Sat Jul 13, 2002 2:32 pm

We know it's not uncapping

. These parameters are under your advanced settings for your NIC.

make7upyoursman · Post by **make7upyoursman** » Sat Jul 13, 2002 2:42 pm

so what is the TX and RX called?

make7upyoursman · Post by **make7upyoursman** » Sat Jul 13, 2002 2:43 pm

because I can only find Rx

make7upyoursman · Post by **make7upyoursman** » Sat Jul 13, 2002 2:44 pm

I mean I can only find the TX

Kip Patterson · Post by **Kip Patterson** » Sat Jul 13, 2002 2:45 pm

The receive and transmit levels are power levels, not frequencies. The transmit level is adjusted by the CMTS continuously and automatically. The receive level is set by the tap, splitters if any, and the loss in the cables to the modem.

You can't adjust them, and you really don't want to.

Kip

DaveM · Post by **DaveM** » Sat Jul 13, 2002 3:34 pm

Actually you can adjust RX and TX. Sort of.

You can decrease you RX Level which will increase your TX level.

It's a pointless process, however.

If you want to try it, hear is the method.

Go to any good Satellite and Cable TV supply company or
Radio Shack, even, has the part I will furthur describe.

Ask for an Inline RF Attenuator. You will need to express the value of attenuation in terms of dB.

Depending where you buy them, thay can have any amount of dB drop you need.
Like 5dB , 7dB, 8db, 10dB, 20dB Drop.

What you don't want to do is lower your RX level so much that you no longer have a strong enough signal for sync lock.

Here is the moot point.
This will also increase you TX level, but, in turn, the attenuator will have the drop on your TX line.

So, say, your Modem says your TX is now 47 on the modem side of your attenuator and you have a 10 dB attenuator installed then on the Wall Jack side of the attenuator your signal level for your TX will now only be 37dB.

So why bother with this issue, unless you just have something really goofy in your system and you think you may be able to correct a Sync Lock problem by utilizing an Inline RF Attenuator in this fashion.

make7upyoursman · Post by **make7upyoursman** » Sun Jul 14, 2002 4:13 am

I wanted to know how to change TX and RX values because I heard at a website dedicated to increasing shaw cable internet performance they say that if I change me Tx value to 47 and the Rx value to 5 I will have maximum modem performance for my TeraPro modem. Does changing Tx and Rx values actually affect modem performance?

Kip Patterson · Post by **Kip Patterson** » Sun Jul 14, 2002 5:56 am