Modem set up advice

[Sybex9]

Today I received my PIN code so that I'm able to add my free modem self install to my set top box. Currently I am running my XL Internet from the STB hence the reason of upgrading to a modem. I have noticed there is a 6db Attenuator between VM wall Box and the STB, my question is, Do I put the splitter before the attenuator or after the attenuator.
Cheers...

[oliver1948uk]

The engineer fiitted the attenuator straight into the 255 modem, with the cable plugged into the attenuator.

My speed is usually good (though variable). After passing to a Linksys WRT54G router and by wireless to my computer, the test I have just done is as follows (the clock on the tester appears to be an hour slow!):

Tue, 8 Apr 2008 08:49:08 UTC

Test 1: 1024K took 448 ms = 2285.7 KB/sec, approx 18834 Kbps, 18.39 Mbps
Test 2: 1024K took 447 ms = 2290.8 KB/sec, approx 18876 Kbps, 18.43 Mbps
Test 3: 1024K took 443 ms = 2311.5 KB/sec, approx 19047 Kbps, 18.6 Mbps
Test 4: 2048K took 893 ms = 2293.4 KB/sec, approx 18898 Kbps, 18.46 Mbps

Overall Average Speed = approx 18914 Kbps, 18.47 Mbps

[Sybex9]

The engineer fiitted the attenuator straight into the 255 modem, with the cable plugged into the attenuator.

My speed is usually good (though variable). After passing to a Linksys WRT54G router and by wireless to my computer, the test I have just done is as follows (the clock on the tester appears to be an hour slow!):

Tue, 8 Apr 2008 08:49:08 UTC

Test 1: 1024K took 448 ms = 2285.7 KB/sec, approx 18834 Kbps, 18.39 Mbps
Test 2: 1024K took 447 ms = 2290.8 KB/sec, approx 18876 Kbps, 18.43 Mbps
Test 3: 1024K took 443 ms = 2311.5 KB/sec, approx 19047 Kbps, 18.6 Mbps
Test 4: 2048K took 893 ms = 2293.4 KB/sec, approx 18898 Kbps, 18.46 Mbps

Overall Average Speed = approx 18914 Kbps, 18.47 Mbps

If I was to put the attenuator straight into the modem then wouldn't I need one for my STB

---------- Post added at 11:43 ---------- Previous post was at 10:01 ----------

Just q quick up date to say I have installed this Modem without any problems, I ended up placing the splitter box before the attenuator.Only problem I have now is that I'm only getting about 9 Meg on my so called 20 Meg Internet connection...

[Jonnymeg]

The attenuator drops the signal. And so does a splitter. The attenuator drops it by 6db the spitter by 3-4 db.
I would remove the attenuator completely and just use the splitter. Your kit will get about 2 db's more signal this way which is better than leaving it in and taking 3-4 db's of both services.

2 db's is reall neither here nor there.

[Sybex9]

The attenuator drops the signal. And so does a splitter. The attenuator drops it by 6db the spitter by 3-4 db.
I would remove the attenuator completely and just use the splitter. Your kit will get about 2 db's more signal this way which is better than leaving it in and taking 3-4 db's of both services.

2 db's is reall neither here nor there.

Thanks for that info Jonnymeg, I shall give that a try over the weekend..

At the Moment I have Cable Modem Downstream Recieve Power Level at 0.7db and SNR at 33db, Upstream Transmit Power Level is 41.5 db...

[Jonnymeg]

Thanks for that info Jonnymeg, I shall give that a try over the weekend..

At the Moment I have Cable Modem Downstream Recieve Power Level at 0.7db and SNR at 33db, Upstream Transmit Power Level is 41.5 db...

Those levels are fine.