Wispers:
I have a 180' tower sitting high on a hill above the county seat. It
has a mix of 5.8 and 2.4 radios and sectors/dishes. We want to
install an amateur repeater on the tower, initially at 70 cm (440MHz
UHF), and eventually a 2 m (144MHz VHF) radio. The dual band antenna
feed point
Multipath interference from the tree.
On Mon, Oct 26, 2009 at 10:01 PM, John Vogel jvo...@vogent.net wrote:
So... I have a customer, been on for a couple of years now. The CPE on
their home quit working. I go to check it out, log into the CPE from
their computer, everything looks good, except
Mike,
I have many Rohn 25G, 45 55 towers with HAM operators on every one of
them. I appreciate the fact that their gear (antennas) are made to take a
lightning strike :-) Their DB222 antennas stuck out the top of my towers
give me a false sense of security, but any security is better than
Or the tree is no longer blocking multi-path interference.
Jayson Baker wrote:
Multipath interference from the tree.
On Mon, Oct 26, 2009 at 10:01 PM, John Vogel jvo...@vogent.net wrote:
So... I have a customer, been on for a couple of years now. The CPE on
their home quit working. I go
The terrain between the AP and the CPE is such that I would ordinarily
consider it a slam-dunk. Standing there on the ground next to the house
and looking at the (almost) clear view of the tower, with nothing in
between that I would consider to be capable of creating multi-path
reflections, my
In my experiences with 2 meter ham gear that is around Ethernet there is a
lot of interference from the Ethernet to the ham guys stuff. I've never seen
the ham guys cause interference though to any wifi gear.
Ham guys are a whole different breed of folk and depending on how these ones
your
Is there anything metal on the roof between the tower and your mount? You
might be getting multipath off the roof (if it's metal), metal flashing, a
vent pipe, or any number of other objects. Just a theory but by raising
or lowering the antenna, you might be changing the angle of incidence
The multipath you are describing is that in which the signal arrives
from two paths slightly out of phase.
If the path length of the reflected signal is just right, the signal
arrives 180 degrees out of phase, thus canceling the direct signal.
Google Moire Pattern for examples of how this
Actually, while Moire is relavent, this wiki page does a better job.
http://en.wikipedia.org/wiki/Interference_%28wave_propagation%29
Notice just above the Examples heading, the 2 waves combine to produce a
zero net result.
Scott Reed wrote:
The multipath you are describing is that in which the
Lamer question-
I have a MT box we use for a public hotspot and logs reveal folks are trying to
hack the password (from WAN, not actual customers) - IPs trace back to China
and stuff.. anyhow - is there an easy way to implement a temporary (12 hour) or
so ban on an IP after x attempts? Thanks.
What service are they trying to hit? FTP? SSH?
If they are hitting SSH or FTP, and you don't have a use for them, just
disable them.
Nick Olsen
Brevard Wireless
(321) 205-1100 x106
From: Scott Vander Dussen sc...@velociter.net
Sent: Tuesday, October
many different ways of doing this!
---
Dennis Burgess, CCNA, A+, Mikrotik Certified Trainer
WISPA Board Member - wispa.org
Link Technologies, Inc -- Mikrotik WISP Support Services
WISPA Vendor Member
Office: 314-735-0270 Website:
I've never seen a rule like this on Mikrotik, but what Butch preaches is a
proactive approach. I do this on my core router.
Filter rules:
accept input 22/tcp from src.addr list
block all of the input 22/tcp traffic
Repeat for 21, 8291, 80 etc
Add good or well known IPs to the src.addr list
http://wiki.mikrotik.com/wiki/Bruteforce_login_prevention_(FTP_%26_SSH)
ryan
On Tue, Oct 27, 2009 at 9:13 AM, Nick Olsen n...@brevardwireless.com wrote:
What service are they trying to hit? FTP? SSH?
If they are hitting SSH or FTP, and you don't have a use for them, just
disable them.
Nick
Oh yeah, it's been so long! (: Ok, that's what we did in the past too..
thanks..
`S
-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf
Of Josh Luthman
Sent: Tuesday, October 27, 2009 9:16 AM
To: WISPA General List
Subject: Re: [WISPA] MT
That's really cool. Never know what the content variable would do. Thanks
for sharing!
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
When you have eliminated the impossible, that which remains, however
improbable, must be the truth.
--- Sir
http://wiki.mikrotik.com/wiki/Bruteforce_login_prevention_(FTP_%26_SSH)
-
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
--
From: Scott Vander Dussen sc...@velociter.net
Sent: Tuesday, October 27, 2009 11:03 AM
To: WISPA
Oversight of the Broadband Stimulus Programs in the American Recovery and
Reinvestment Act
Full Committee
Tuesday, October 27, 2009
02:45 PM
SR - 253
WASHINGTON, D.C. - The U.S. Senate Committee on Commerce, Science, and
Transportation announces the following full committee
It's possible, too that the tree was helping you by adding a diffracting
object to the path. I once saw a uW link in Germany that had to go over
a sharp mountain peak. There was no way to get a repeater or even a
reflector up there, so they used the peak to diffract the signal to the
other
Just wonder...
WISPA Wants You! Join today!
http://signup.wispa.org/
WISPA Wireless List: wireless@wispa.org
Subscribe/Unsubscribe:
He was the printer in Office Space.
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
When you have eliminated the impossible, that which remains, however
improbable, must be the truth.
--- Sir Arthur Conan Doyle
On Tue, Oct 27, 2009 at 12:51 PM,
Mac:
I guess we'll deal with any interference coming from my equipment as
we need, my biggest fear is that the amateur signal may in some way
interfere or degrade the bread and butter.
Per my requirements, the dual-bander going up is DC grounded, and the
coax will run down a tower leg where I
Can you please explain 2 meter ham gear?
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
When you have eliminated the impossible, that which remains, however
improbable, must be the truth.
--- Sir Arthur Conan Doyle
On Tue, Oct 27, 2009 at 10:37
Kurt:
The 2 meter receive will come later if at all. I would like 2 inputs
on the repeater in case we want to link one from another city in
case SHTF and we need emergency links to Des Moines or Cedar Rapids.
Since I am lumped into that different breed, I'll keep them
corralled. One is the
Josh:
Amateur operators, besides talking world wide on HF frequencies, have
primary allocations in various slots in the spectrum. Besides 440
(UHF) there is 144 MHz (2 meter VHF), and 220 MHz (VHF). 2 meter and
70 cm repeaters are common in the ham world. What happens is an
operator is
Depends on the band... For UHF 440 MHz, the split is usually 5 MHz (same as
LMR in the UHF band). For VHF 144 MHz, the split in the US is 600 KHz (0.600
MHz).
Typical voice channel bandwidth is under 20 KHz for wideband and less than
12.5 KHz for narrowband operation... A far cry from the 5 and
Yes the split is 5, my fingers typed 6. The repeater frequency is
444.000 with a standard 5 MHz offset to 449.000. The tone will be
114.8. So, if you are ever driving down Hwy 30 between Cedar Rapids
and Marshalltown, you are welcome to use it; it is an open repeater.
At 12:42 PM
Operates from 144 to 148 MHz. When you convert the frequency into
"wavelength" you find that one wavelength is approximately 2 meters.
jack
Josh Luthman wrote:
Can you please explain "2 meter ham gear"?
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
That's what I was thinking and going to ask. Psychic you are.
Thanks for the information each of you!
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
When you have eliminated the impossible, that which remains, however
improbable, must be the
Awesome :)
In our experience here where we own both the amateur and wireless network
equipment. The best luck we've had was to use two separate metal enclosures,
one for the ham, one for the network gear and ensure everything is bonded
together. Initially we had issues as well with ethernet ports
Mike,
I have had both 2m and 70cm repeaters (at the same time) on my main
tower with no problems to the wireless.
I have had tremendous problems with noise on vhf frequencies. I can
take my 2m mobile and pull up close to a tower and start scanning the
band and it will lock onto a frequency
Uh, the split or seperation on two meters
is .6 Mhz, not 6 mhz.
Lots of simplex work on two meters also.
We have lots of sites with both 440 and two meter
gear co-existing with WISP's, with no interference
issues either way.
Don't take your organs to heaven,
heaven knows we need them down
They are a challenge, eh? I'd rather thread a needle with my eyes
closed than deal with those up on a tower.
On Tue, Oct 27, 2009 at 12:51 PM, Jeremy Parr jeremyp...@gmail.com wrote:
Just wonder...
WISPA Wants
I bet he's now working with nano technology!
On Tue, Oct 27, 2009 at 12:58 PM, Josh Luthman
j...@imaginenetworksllc.com wrote:
He was the printer in Office Space.
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
When you have eliminated the
To those of you who haven't figured this out...take up a whole box
(routerboard, radio, connectors, etc) already done on the ground. Carry the
box up, swap it out. Don't piss around with those u.fl on towers -
dangerous and very infuriating.
Josh Luthman
Office: 937-552-2340
Direct:
Josh:
Hadn't thought of your question in that way. Amateur radio operators
traditionally refer to a band by wavelength instead of
frequency. 160 Meters is 1.8 MHz
80 Meters is 3.5 MHz
40 Meters is 7 MHz
30 Meters is 10.1 MHz
20 Meters is 14 MHz
17 Meters is 18 MHz
15 Meters is 21 MHz
12
Thread stickied. Awesome information.
Thanks again =)
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
When you have eliminated the impossible, that which remains, however
improbable, must be the truth.
--- Sir Arthur Conan Doyle
On Tue, Oct 27,
What enclosures do you use? Some of the early deployments used the tiny Pac
DCE boxes with 532 boards. Everything is small. It is impossible to put
the u.fl on the back with it mounted which means taking the board out. Once
you take the board out you can put the u.fl on, then gently put it
2009/10/27 Josh Luthman j...@imaginenetworksllc.com:
To those of you who haven't figured this out...take up a whole box
(routerboard, radio, connectors, etc) already done on the ground. Carry the
box up, swap it out. Don't piss around with those u.fl on towers -
dangerous and very
As much as I HATE those connectors, I have gotten pretty good at
replacing a card that has them. Even up on a tower.
I have found that I can not see (yeah I really need bifocals) the
connector well enough but I can put a slight amount of pressure on the
connector and move it around a little
All of the jank (for lack of a better word) repeaters were 532 and Engenius
cards. Even if they were the better wlm54ag cards they'd have u.fl.
I agree, though. Towers need better cards which often have a better
connector - mmcx. Still, I prefer swapping boxes as N is easy to work with
- when
Yep, we use 411ah and each antenna has it's own box. If we have a
problem, we swap out the box and work on it in the warm cozy shop. In
mosts cases it is faster and easier
to change out the box.
Jim
Josh Luthman wrote:
All of the jank (for lack of a better word) repeaters were 532 and
2 meter refers to the wavelength like 440 MHz is 70 cm. 2 meters is 150
MHz.
-
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
--
From: Josh Luthman j...@imaginenetworksllc.com
Sent: Tuesday, October 27, 2009 12:29 PM
A good rule of thumb is 300 MHz = 1 meter and they are inversely proportionate,
so 150 MHz = 2 meter and 600 MHz = 0.5 meter.
-
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
From: Jack Unger
Sent: Tuesday, October 27, 2009 1:05 PM
To: WISPA General List
Subject:
Now if only I had my radio anymore... oh, and I got off my butt and got a
license.
-
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
--
From: Mike m...@aweiowa.com
Sent: Tuesday, October 27, 2009 12:55 PM
To: WISPA
IF there is a MTR2000 Motorola repeater in the building, it is
an easily fixed issue that M knows about. Idle Freq needs to be changed.
Don't take your organs to heaven,
heaven knows we need them down here!
Be an organ donor, sign your donor card today.
- Original Message -
From:
Yep, use shielded ethernet cable and there won't be problems. Even use
shielded indoors.
Being they are not doing for money, the amatuer crowd is also somewhat apt
to ignore OSHA and many of the modern safety concepts like fall protection.
Unless you specify your safety requirements, you might
I have one of my towers that has grown to 32 subs, This is a MT ap and I
hear that is the magic limit. The only current issue I have with it CPU
maxing out at peak times and I am planning a board swap for that. I was
also thinking of sectoring but do not feel the need for three. Having a
hard
MTI stops at 120
Pac has two
http://www.streakwave.com/Itemdesc.asp?ic=SA24%2D180%2D12eq=Tp=
http://www.streakwave.com/Itemdesc.asp?ic=SA24%2D180%2D14eq=Tp=
Hyperlink has one
http://www.l-com.com/item.aspx?id=22079
More here...
Wait till you get a couple people doing netflix or hulu, 3 sectors instead
of 2 isn't a huge investment, and you'll have a lot more choices for
antenna vendors.
On Tue, Oct 27, 2009 at 03:54:38PM -0500, Mark McElvy wrote:
I have one of my towers that has grown to 32 subs, This is a MT ap and
Anyone know where I can get a 1U rackmount case for a RB450/450G?
I'm looking for something like the Hana Wireless 1U case for the RB493
that Streakwave carries.
WISPA Wants You! Join today!
http://signup.wispa.org/
I have yet to see one. The only suggestion I can make is a home
fabrication.
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
When you have eliminated the impossible, that which remains, however
improbable, must be the truth.
--- Sir Arthur Conan
Hey Mark. My experience on the Pac 120* H-Pol sectors is that you will come
very close to 360* with just two of them. I would stay away from 180's. I
think it was the good man Marlin that sent me some info about those a few
years back when I considered this and I decided on the 120's. Worked
While You are going to Sectors I recommend 802.11g 10Mhz channels. It has
changed my life going away from 20Mhz.
Steve Barnes
RC-WiFi Wireless Internet Service
Character cannot be developed in ease and quiet. Only through experience of
trial and suffering can the soul be strengthened, vision
There is no magic number.
I have had MT based APs that with the customer usage and the RB that it
was really busy at 20 users. I have and know others that can provide
the throughput to well over 50 customers. It depends on a lot more than
the count.
That said, going to sectors can do much for
Wow. Thats pretty
Nice job
Gino Villarini wrote:
Do you like this one?
Gino A. Villarini
g...@aeronetpr.com
Aeronet Wireless Broadband Corp.
787.273.4143
-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Josh Luthman
I want!!!
On 10/27/09, Gino Villarini g...@aeronetpr.com wrote:
Do you like this one?
Gino A. Villarini
g...@aeronetpr.com
Aeronet Wireless Broadband Corp.
787.273.4143
-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Josh
How many do you need? What is the target price?
Regards,
Chuck Hogg
Shelby Broadband
502-722-9292
ch...@shelbybb.com
http://www.shelbybb.com
-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Jon Auer
Sent: Tuesday, October 27, 2009
Where did you find that?
Regards,
Chuck Hogg
Shelby Broadband
502-722-9292
ch...@shelbybb.com
http://www.shelbybb.com
-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Gino Villarini
Sent: Tuesday, October 27, 2009 7:21 PM
To: WISPA
2009/10/27 Chuck Hogg ch...@shelbybb.com:
Where did you find that?
Looks smi-custom. You can find the blank 1U enclosures lots of places,
you would just need to add a power supply, mounting plates, and a
nice piece of trim for the front (or back).
Yea, I know that much, I just didn't know if he had it made or if he
custom built it.
Regards,
Chuck Hogg
Shelby Broadband
502-722-9292
ch...@shelbybb.com
http://www.shelbybb.com
-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Jeremy
As an RF Engineer and an antenna designer, I can say that you don't want
180's. Go with the 120's or even some 90's. You'll get pretty good
coverage all the way around even with a couple of 90's back to back. If
you are really worried about the small nulls on the sides, make sure
your main
Kind of embarrassed to ask, but to go 802.11g 10 MHz on MT is just setting
2.4-10? on the Interface
Using R52H, or do they not support the correct setting?
Scott Piehn
- Original Message -
From: Steve Barnes st...@pcswin.com
To:
All the stations need to be compatible too! If they're all set to
20mhz channels they will not see the 10mhz AP.
On 10/27/09, Scott Piehn li...@jcwifi.com wrote:
Kind of embarrassed to ask, but to go 802.11g 10 MHz on MT is just setting
2.4-10? on the Interface
Using R52H, or do they not
I think every Atheros radio made in the past few years supports the smaller
channels.
-
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
--
From: Scott Piehn li...@jcwifi.com
Sent: Tuesday, October 27, 2009 8:04 PM
To:
I don't believe Engenius does.
I know Ubnt and Tranzeo do.
On 10/27/09, Mike Hammett wispawirel...@ics-il.net wrote:
I think every Atheros radio made in the past few years supports the smaller
channels.
-
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
Egads, in that case, I see your point! In my case, I use generic
enclosures with plenty of room for working hands. I do admit,
depending on the amount of work that needs to be done, I have been
known to swap out enclosures but not normally. With that said, I've
been dreaming of a system like
That is it. But. You want to make sure. To change your clients if any before
changing the ap.
/Eje
Sent via BlackBerry from T-Mobile
-Original Message-
From: Scott Piehn li...@jcwifi.com
Date: Tue, 27 Oct 2009 20:04:33
To: WISPA General Listwireless@wispa.org
Subject: Re: [WISPA]
Sometimes, you can contact the carriers and they will install repeaters
for their clients.
John
jp wrote:
I've got a wi-ex zboost yx500-cel at home and it works great to bring
cellular into my home which is otherwise a dead-zone.
Now, since we're the local gurus of all thing wireless, one
There are several of these on I80 and Hwy 50 in Northern CA. These silly
things cost like $40,000 to sort of look like a tree
John
Tom Sharples wrote:
We spotted several on a recent road-trip around the Sacramento area. Looked
like the world's worst fake Christmas tree from Walmart!
Yeah, and the new Deliberant radios will do 1/2 and 1/4 channels. I
have had good luck with a mix of them. The new ones with the Atheros
chip set seem to be more sensitive too.
mike
At 05:05 PM 10/27/2009, you wrote:
There is no magic number.
I have had MT based APs that with the customer
Cool! Gino, when I try to embed a pic I get EMACS instead of a
pic. I can attach one OK, but how do I embed one like you did?
Mike
At 06:21 PM 10/27/2009, you wrote:
Do you like this one?
Gino A. Villarini
g...@aeronetpr.com
Aeronet Wireless Broadband Corp.
787.273.4143
-Original
Is there any reason that you want those IP addresses accessing your box
at all?
You can probably block several /8's and make things work better.
John
Scott Vander Dussen wrote:
Lamer question-
I have a MT box we use for a public hotspot and logs reveal folks are trying
to hack the password
Good for you!
The repeater is up.
I see no issues with ping times to key customers while the
transmitter is running. I will continue to monitor it very closely.
Thanks all for your hints and input. The control OP lives in town,
about 4.5 miles away. He is almost full quieting with a little
Does anyone know how you use shielded cat 5 when the radio's are all Tranzeo
with their plastic Ethernet port??? Trying to solve a interference problem
with some hams myself.
Kurt Fankhauser
WAVELINC
P.O. Box 126
Bucyrus, OH 44820
419-562-6405
www.wavelinc.com
-Original Message-
From:
I'd recommend against 180* antennas. They are really just lopsided omni's.
Go with three 120* antennas. Mix vpol and hpol. You'll be glad you went
this route over the long haul.
marlon
- Original Message -
From: Mark McElvy mmce...@accubak.com
To: WISPA General List
I'm looking at a link that has a possible issue. I've linked pictures.
http://www.ics-il.net/images/Naperville%20-%20ATT%20Plaza%20Radio%20Mobile%20zoom.png
This is the building causing a problem. Each color ring is 1 meter of
elevation, meaning there's about 10 meters of height error in
77 matches
Mail list logo
