I know of an operator in San Francisco that could not get the AF24 to
work at relatively short distances (~~ 2.5 kilometers), but was able to
get the Trango 24GHz to work. San Francisco (especially downtown) is a
fairly busy RF environment.
bp
<part15sbs{at}gmail{dot}com>
On 10/15/2015 2:11 PM, Adam Moffett wrote:
Sync is a good feature, but personally, given the low EIRP limit at
24ghz I think the option for higher antenna gain is a bigger deal. I
also suspect that high perf dishes would allow for channel re-use
without sync.
I really can't do 24ghz more than 3 miles in any case, so it's pretty
rare that we're using any of these things to start with. So I don't
have as much experience with that as some of you do, and maybe my
opinion is not well informed.
On 10/15/2015 4:34 PM, George Skorup wrote:
Exalt is also doing their ExtendAir G2 in 24GHz U/L now. Which is
probably about the same pricing as the Stratalink, although ~half the
speed being that it's only 256QAM. Neither of these seem reasonable
to me when the AF24 exists. Yeah, the AF24 uses the whole 200MHz, but
at least you can sync them.
On 10/15/2015 1:44 PM, Bill Prince wrote:
Yes. Midwest maximum rain rates are way up there.
Looking back in our records, our AF24 (not HD) have lost ~~ 3 dBm
during our last real rain event last December. These are 2.25 mile
links.
bp
<part15sbs{at}gmail{dot}com>
On 10/15/2015 11:38 AM, Eric Kuhnke wrote:
The funny thing about the pacific northwest is that it's only ITU
rain zone D. We get constant rain and drizzle and grey skies that
causes acceptable fades (like, an 18 GHz link that normally sites
at -37 with no rain will hang out at -49 for days at a time), but
major downpour events are relatively rare. It's the mm/hour...
If I recall correctly some locations that are less famously rainy
such as Baltimore or Chicago actually have more frequent high
mm/hour rain events than Seattle. Thus a link designed to be at max
capacity for five nines will be shorter in Chicago than in Portland
or Seattle.
On Thu, Oct 15, 2015 at 11:36 AM, Bill Prince <[email protected]
<mailto:[email protected]>> wrote:
Agreed for the NW where you are. We're in the SF bay area, and
we get "rain", but not like you guys. For the last 4 years we
haven't even gotten that.
I know of a couple situations that are getting almost 10 miles
on a AF24HD.
bp
<part15sbs{at}gmail{dot}com>
On 10/15/2015 11:31 AM, Eric Kuhnke wrote:
5.5 miles is probably asking too much, I would use it at a
max of 5-6 km in a Pacific Northwest rain zone.
