ProAsm
04-03-2004, 08:09 PM
Firstly I'd like to thank Andre at Fastcomm and also Webb Industries for organising me a IPWireless Modem connector so speedily.
It works great - thanks guys [:)]
Now for the tests........
Test setup:
P4 - HP 2.6 gig Laptop 512 megs memory - WinXp Pro.
MySignal.exe version 2.5 (needs BIG percentage display) [:)]
19 dB gain Panel Antenna centered on 2.4 gigs
-20 dB return loss at 2.4 gig
-16 dB return loss at 2.53 gig
The Antenna therefore has a usable gain of 15 dB at 2.53 gigs
8 meters RG214 cable with N-Type (Barrel) joining onto Modem pigtail (N-Male to special connector)
Estimated loss in cable - 4 dB
The Antenna system therefore has a usable gain of 12 dB
Well things work very differently in practice than in theory.
Dont for one minute think because the modem picks up a good signal in a particular spot that the antenna is gonna work there.
At the end of the day, the antenna likes to be in a wide open area and as high as possible. Antenna adjustment is critical and moving it just a small bit the signal totally dissapears.
In area's low down (gutter height) there was no real significant gain over the modem - about 5% to 10%
My final resting place was attached to my tower about 2 meters above the roof (need longer and better cable)
Signal obtained here was 54% but due to the design of the tower and the brackets on the antenna I could not point it directly at the Tower so it is currently about 5 degrees to the right.
K1 | 04/03 - 19:14 | 102 | 2530000 | 51% | -54 dBm
When I hold the modem up at this point it reads 22%
After running cable straight down through my study window and into Modem and now connected to my Desktop PC - readings are still the same at 51%
K2 | 04/03 - 20:06 | 102 | 2530000 | 51% | -54 dBm
Observations:
1. Was hoping for better ping results but before with modem at 25% my pings were 137 (ave), they are now 96 (ave) to Mweb Kalahari 196.2.33.21
I will test them ingame to see if the spiking has dissapeared.
2. I logon on immediately (first time) something that does not happen with modem alone at 25%
Still need to test at some time if I will get disconnected etc.
3. Downloads are very steady, no packet loss, just rocks in.
Overall everything feels more responsive and solid.
The Patch Antenna (10 dBi)
Make: Andrew QD-2327MX10
Frequency: 2.3 to 2.7 gigs
Cable: 3 meters unknown make but thin.
Here I was very dissapointed and maybe all the gain is lost in its inferior cable as it only gave me about a 5% signal increase regardless of where I tested it.
Moral of the story, get the highest gain antenna possible, mount it as high as possible in as clear a space as possible and use the best cable money can buy.
Next test (Saturday) will be the 28 dBi Grid antenna with some good cable mounted approx 5 meters above roof level.
[;)]
<hr noshade size="1"><center>http://www.unrealza.co.za/proasm/mywireless.html</center>
It works great - thanks guys [:)]
Now for the tests........
Test setup:
P4 - HP 2.6 gig Laptop 512 megs memory - WinXp Pro.
MySignal.exe version 2.5 (needs BIG percentage display) [:)]
19 dB gain Panel Antenna centered on 2.4 gigs
-20 dB return loss at 2.4 gig
-16 dB return loss at 2.53 gig
The Antenna therefore has a usable gain of 15 dB at 2.53 gigs
8 meters RG214 cable with N-Type (Barrel) joining onto Modem pigtail (N-Male to special connector)
Estimated loss in cable - 4 dB
The Antenna system therefore has a usable gain of 12 dB
Well things work very differently in practice than in theory.
Dont for one minute think because the modem picks up a good signal in a particular spot that the antenna is gonna work there.
At the end of the day, the antenna likes to be in a wide open area and as high as possible. Antenna adjustment is critical and moving it just a small bit the signal totally dissapears.
In area's low down (gutter height) there was no real significant gain over the modem - about 5% to 10%
My final resting place was attached to my tower about 2 meters above the roof (need longer and better cable)
Signal obtained here was 54% but due to the design of the tower and the brackets on the antenna I could not point it directly at the Tower so it is currently about 5 degrees to the right.
K1 | 04/03 - 19:14 | 102 | 2530000 | 51% | -54 dBm
When I hold the modem up at this point it reads 22%
After running cable straight down through my study window and into Modem and now connected to my Desktop PC - readings are still the same at 51%
K2 | 04/03 - 20:06 | 102 | 2530000 | 51% | -54 dBm
Observations:
1. Was hoping for better ping results but before with modem at 25% my pings were 137 (ave), they are now 96 (ave) to Mweb Kalahari 196.2.33.21
I will test them ingame to see if the spiking has dissapeared.
2. I logon on immediately (first time) something that does not happen with modem alone at 25%
Still need to test at some time if I will get disconnected etc.
3. Downloads are very steady, no packet loss, just rocks in.
Overall everything feels more responsive and solid.
The Patch Antenna (10 dBi)
Make: Andrew QD-2327MX10
Frequency: 2.3 to 2.7 gigs
Cable: 3 meters unknown make but thin.
Here I was very dissapointed and maybe all the gain is lost in its inferior cable as it only gave me about a 5% signal increase regardless of where I tested it.
Moral of the story, get the highest gain antenna possible, mount it as high as possible in as clear a space as possible and use the best cable money can buy.
Next test (Saturday) will be the 28 dBi Grid antenna with some good cable mounted approx 5 meters above roof level.
[;)]
<hr noshade size="1"><center>http://www.unrealza.co.za/proasm/mywireless.html</center>