| reply to BigCreek
Re: 900MHz at 9 miles and some trees Trango's 900 will deliver more usable throughput and has the external antenna option for a 15dbi Yagi at the customer side of this link.
Shayne |
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| With Canopy moving to the Advantage Platform (4Mbps) on their 900 MHz gear I think Trango's now in the basement on "useable throughput" at 3Mbps aren't they ? Our other decision maker was that Trango looses throughput quick when the fade margin drops below 10db it seems. Canopy's Propaganda says they can run full tilt right down to 3db....A couple other reasons for not staying Trango were the bugs, the lower radio output and lower recv sensitivity. |
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| I heard waverider's next 900 firmware will get it up to 6 mb. |
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| Yeah but unless they've changed their design WaveRider doesn't support an external antenna does it ? |
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 aSicapplication specificPremium
join:2001-05-17
Wakulla, FL | reply to wispman
said by wispman:I heard waverider's next 900 firmware will get it up to 6 mb. But how much of the band will it eat up to deliver this?
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Teamwork is a lot of people doing what I say. | ircd.removed.us #dslr | Starband SRS m360 GE4 C4/S69 | Win2003/DualNIC | 802.11b |
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 DaDogsSemper VigilantisPremium
join:2004-02-28
Deltaville, VA
1 edit | reply to Semaphore
said by Semaphore:With Canopy moving to the Advantage Platform (4Mbps) on their 900 MHz gear I think Trango's now in the basement on "useable throughput" at 3Mbps aren't they ? Our other decision maker was that Trango looses throughput quick when the fade margin drops below 10db it seems. Canopy's Propaganda says they can run full tilt right down to 3db....A couple other reasons for not staying Trango were the bugs, the lower radio output and lower recv sensitivity. This presumes that Canopy delivers the fixes that they need to deliver with the new firmware release. Right now the useable thruput on Canopy 900 systems is more like 1.8 MBits. Lets check it shall we?
Stats for LUID: 12 Test Duration: 10 Pkt Length: 1522
Downlink RATE: 1298841 bps
Uplink RATE: 409804 bps
Downlink Efficiency: 100 Percent
Max Downlink Index: 98
Actual Downlink Index: 98
Expected Frag Count: 25368
Actual Frag Count: 25844
Uplink Efficiency: 100 Percent
Max Uplink Index: 98
Actual Uplink Index: 98
Expected Frag Count: 8004
Actual Frag Count: 8004
That is the reality of Canopy 900 MHz on a damn clean link running software scheduling. When and if Moto gets hardware scheduling working correctly with the 7.2 release of their firmware these numbers will double. Now I do have a slight reservation for VoIP and other latency sensitive applications but this is what you get, pretty much.
The exact numbers are 70 percent download, 20 per cent upload and 5 percent reserved for high priority traffic. This means that the total useable thruput on a 100%x100% link is very close to 1.8 M/bit/sec.
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| Of course if you know the problem you know that it doesn't affect all users of HWS & 2X, only 'some circumstances' (which Moto has failed to disclose unfortunately). This link is 6.7 km's and as dirty as Hell...
Session Status REGISTERED VC 18 Rate 2X/2X VC 255 Rate 2X/1X
Registered AP 0a-00-3e-90-62-60
RSSI 1378
Jitter 10
Air Delay 148 (approximately 4.12 miles (21756 feet))
Radio Slicing Value 592 (decimal)
Radio Transmit Gain Setting 15 (decimal)
Radio Power Level -70 dBm
We could look at that and see how it's going....
Current Results Status
Stats for LUID: 2 Test Duration: 2 Pkt Length: 1522
Downlink RATE: 3680768 bps
Uplink RATE: 867840 bps
Downlink Efficiency: 100 Percent
Max Downlink Index: 100
Actual Downlink Index: 100
Expected Frag Count: 14378
Actual Frag Count: 14378
Uplink Efficiency: 100 Percent
Max Uplink Index: 100
Actual Uplink Index: 100
Expected Frag Count: 3390
Actual Frag Count: 3390
And that's 75/25... Only registration is when the SM is booted.
Of course pulling a couple of link tests does make a mess outta your ping times...
Ping statistics for 172.16.3.2:
Packets: Sent = 533, Received = 530, Lost = 3 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 10ms, Maximum = 368ms, Average = 18ms |
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3 edits | Sounds like Motorola Canopy has problems with their equipment.
That worries me, since I originally thought that Motorola equipment was pretty much flawless. Looks like they have firmware bugs too, like the less expensive APs. So why do they charge so much.
From what you say, it sounds like they are trying to get rid of some bugs in their firmware?
Was this just with their 900 MHz radios? |
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| reply to Semaphore
Waverider has an external modem using power over ethernet. 6 mbps would be outstanding and very competitive with dsl and current cable offerings. |
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| reply to Airplane777
7.2.somthing due out soon... supposed to get rid or the rereg problems... switch to Software Scheduling to alleviate some of the problem... workd for us on about 120 clients on 3 different APs... till it comes (7.2.somthing or what ever)we are doing pretty good on Software... do still have 4 POPs on Hardware... very close links... no interference, seems to be a problem in the firmware in dealing with numbers in high interferance areas... hope this helps...
Wizard |
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| By the way... How many of you are on the Motorola Part 15 List...??? |
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