[AFMUG] OTA TV and WIFI Interference

[Larry Smith]

Interesting issue.  Installed a Mikrotik RB-2011 at a customer
site (replaced an older Linksys WRT-54G and DSL router with
wireless) and since then the customer says that when the
2011 is on (wireless on) their TV's are fuzzy and the picture 
and sound pauses and breaks up.  I can disable the wireless
on the TIK and both TV's clear up immediately.  Have tried 
changing frequencies around but that does not seem to help
at all.  Believe they are using just simple desktop "rabbit" ears
for the OTA TV, but have never run into this before.

Any ideas?

-- 
Larry Smith
lesm...@ecsis.net

Re: [AFMUG] OTA TV and WIFI Interference

[Chuck McCown]

Wow, analog TV?
Yes, 100 Mbps ethernet will interfere with analog OTA.

But I figured everyone would be digital by now.  

-Original Message- 
From: Larry Smith 
Sent: Friday, December 18, 2015 9:24 AM 
To: memb...@wispa.org ; af@afmug.com 
Subject: [AFMUG] OTA TV and WIFI Interference 


Interesting issue.  Installed a Mikrotik RB-2011 at a customer
site (replaced an older Linksys WRT-54G and DSL router with
wireless) and since then the customer says that when the
2011 is on (wireless on) their TV's are fuzzy and the picture 
and sound pauses and breaks up.  I can disable the wireless
on the TIK and both TV's clear up immediately.  Have tried 
changing frequencies around but that does not seem to help

at all.  Believe they are using just simple desktop "rabbit" ears
for the OTA TV, but have never run into this before.

Any ideas?

--
Larry Smith
lesm...@ecsis.net

Re: [AFMUG] OTA TV and WIFI Interference

[Larry Smith]

I do not know if it is actually analog or one of those
desktop digital rabbit ears.  Have not inspected anything
yet, just know that I can remotely disable the wireless
on the RB-2011 and they say both TV's immediately
clear up and work fine, re-enable the wireless (no change
to ethernet or anything else) and both TV's go fuzzy
and they start getting what they call "pauses" in both
the video and sound.

-- 
Larry Smith
lesm...@ecsis.net

On Fri December 18 2015 10:39, Chuck McCown wrote:
> Wow, analog TV?
> Yes, 100 Mbps ethernet will interfere with analog OTA.
>
> But I figured everyone would be digital by now.
>
> -Original Message-
> From: Larry Smith
> Sent: Friday, December 18, 2015 9:24 AM
> To: memb...@wispa.org ; af@afmug.com
> Subject: [AFMUG] OTA TV and WIFI Interference
>
> Interesting issue.  Installed a Mikrotik RB-2011 at a customer
> site (replaced an older Linksys WRT-54G and DSL router with
> wireless) and since then the customer says that when the
> 2011 is on (wireless on) their TV's are fuzzy and the picture
> and sound pauses and breaks up.  I can disable the wireless
> on the TIK and both TV's clear up immediately.  Have tried
> changing frequencies around but that does not seem to help
> at all.  Believe they are using just simple desktop "rabbit" ears
> for the OTA TV, but have never run into this before.
>
> Any ideas?

Re: [AFMUG] OTA TV and WIFI Interference

[Rory Conaway]

Sounds like the old days when I use to use a broadband linear amplifier on the 
CB radio and channels 3 and 5 would just go completely dark like the stations 
shut off.  Drove my mom nuts.  

Rory

-Original Message-
From: Af [mailto:af-boun...@afmug.com] On Behalf Of Larry Smith
Sent: Friday, December 18, 2015 9:48 AM
To: af@afmug.com
Subject: Re: [AFMUG] OTA TV and WIFI Interference

I do not know if it is actually analog or one of those desktop digital rabbit 
ears.  Have not inspected anything yet, just know that I can remotely disable 
the wireless on the RB-2011 and they say both TV's immediately clear up and 
work fine, re-enable the wireless (no change to ethernet or anything else) and 
both TV's go fuzzy and they start getting what they call "pauses" in both the 
video and sound.

--
Larry Smith
lesm...@ecsis.net

On Fri December 18 2015 10:39, Chuck McCown wrote:
> Wow, analog TV?
> Yes, 100 Mbps ethernet will interfere with analog OTA.
>
> But I figured everyone would be digital by now.
>
> -Original Message-
> From: Larry Smith
> Sent: Friday, December 18, 2015 9:24 AM
> To: memb...@wispa.org ; af@afmug.com
> Subject: [AFMUG] OTA TV and WIFI Interference
>
> Interesting issue.  Installed a Mikrotik RB-2011 at a customer site 
> (replaced an older Linksys WRT-54G and DSL router with
> wireless) and since then the customer says that when the
> 2011 is on (wireless on) their TV's are fuzzy and the picture and 
> sound pauses and breaks up.  I can disable the wireless on the TIK and 
> both TV's clear up immediately.  Have tried changing frequencies 
> around but that does not seem to help at all.  Believe they are using 
> just simple desktop "rabbit" ears for the OTA TV, but have never run 
> into this before.
>
> Any ideas?

Re: [AFMUG] OTA TV and WIFI Interference

[George Skorup]

Could be an intermediate frequency leakage issue from the radio in the 2011?

On 12/18/2015 10:51 AM, Rory Conaway wrote:

Sounds like the old days when I use to use a broadband linear amplifier on the 
CB radio and channels 3 and 5 would just go completely dark like the stations 
shut off.  Drove my mom nuts.

Rory

-Original Message-
From: Af [mailto:af-boun...@afmug.com] On Behalf Of Larry Smith
Sent: Friday, December 18, 2015 9:48 AM
To: af@afmug.com
Subject: Re: [AFMUG] OTA TV and WIFI Interference

I do not know if it is actually analog or one of those desktop digital rabbit ears.  Have 
not inspected anything yet, just know that I can remotely disable the wireless on the 
RB-2011 and they say both TV's immediately clear up and work fine, re-enable the wireless 
(no change to ethernet or anything else) and both TV's go fuzzy and they start getting 
what they call "pauses" in both the video and sound.

--
Larry Smith
lesm...@ecsis.net

On Fri December 18 2015 10:39, Chuck McCown wrote:

Wow, analog TV?
Yes, 100 Mbps ethernet will interfere with analog OTA.

But I figured everyone would be digital by now.

-Original Message-
From: Larry Smith
Sent: Friday, December 18, 2015 9:24 AM
To: memb...@wispa.org ; af@afmug.com
Subject: [AFMUG] OTA TV and WIFI Interference

Interesting issue.  Installed a Mikrotik RB-2011 at a customer site
(replaced an older Linksys WRT-54G and DSL router with
wireless) and since then the customer says that when the
2011 is on (wireless on) their TV's are fuzzy and the picture and
sound pauses and breaks up.  I can disable the wireless on the TIK and
both TV's clear up immediately.  Have tried changing frequencies
around but that does not seem to help at all.  Believe they are using
just simple desktop "rabbit" ears for the OTA TV, but have never run
into this before.

Any ideas?

Re: [AFMUG] OTA TV and WIFI Interference

[Joshaven Mailing Lists]

Is it possible that it is related to the power maybe you have a ground loop 
caused by something crazy like a ground on the RB-2011 that isn’t in place with 
the Linksys?  I know that other things like this have happened with appliances 
or other powered devices.  Maybe they have need of better home grounding.


Sincerely,
Joshaven Potter
Google Hangouts: j...@g2wireless.co
Cell & SMS: 1-517-607-9370
supp...@joshaven.com



> On Dec 18, 2015, at 11:24 AM, Larry Smith  wrote:
> 
> Interesting issue.  Installed a Mikrotik RB-2011 at a customer
> site (replaced an older Linksys WRT-54G and DSL router with
> wireless) and since then the customer says that when the
> 2011 is on (wireless on) their TV's are fuzzy and the picture 
> and sound pauses and breaks up.  I can disable the wireless
> on the TIK and both TV's clear up immediately.  Have tried 
> changing frequencies around but that does not seem to help
> at all.  Believe they are using just simple desktop "rabbit" ears
> for the OTA TV, but have never run into this before.
> 
> Any ideas?
> 
> -- 
> Larry Smith
> lesm...@ecsis.net

Re: [AFMUG] OTA TV and WIFI Interference

[Joshaven Mailing Lists]

Is it possible that it is related to the power maybe you have a ground loop 
caused by something crazy like a ground on the RB-2011 that isn’t in place with 
the Linksys?  I know that other things like this have happened with appliances 
or other powered devices.  Maybe they have need of better home grounding.


Sincerely,
Joshaven Potter
Google Hangouts: j...@g2wireless.co 
Cell & SMS: 1-517-607-9370
supp...@joshaven.com 


> On Dec 18, 2015, at 11:24 AM, Larry Smith  > wrote:
> 
> Interesting issue.  Installed a Mikrotik RB-2011 at a customer
> site (replaced an older Linksys WRT-54G and DSL router with
> wireless) and since then the customer says that when the
> 2011 is on (wireless on) their TV's are fuzzy and the picture 
> and sound pauses and breaks up.  I can disable the wireless
> on the TIK and both TV's clear up immediately.  Have tried 
> changing frequencies around but that does not seem to help
> at all.  Believe they are using just simple desktop "rabbit" ears
> for the OTA TV, but have never run into this before.
> 
> Any ideas?
> 
> -- 
> Larry Smith
> lesm...@ecsis.net 

Re: [AFMUG] OTA TV and WIFI Interference

[Chris Wright]

That would be my guess. Try using a ground lifter on the RB2011’s power.

Chris Wright
Network Administrator
Velociter Wireless
209-838-1221 x115

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Joshaven Mailing Lists
Sent: Friday, December 18, 2015 12:34 PM
To: af@afmug.com
Subject: Re: [AFMUG] OTA TV and WIFI Interference

Is it possible that it is related to the power maybe you have a ground loop 
caused by something crazy like a ground on the RB-2011 that isn’t in place with 
the Linksys?  I know that other things like this have happened with appliances 
or other powered devices.  Maybe they have need of better home grounding.


Sincerely,
Joshaven Potter
Google Hangouts: j...@g2wireless.co<mailto:j...@g2wireless.co>
Cell & SMS: 1-517-607-9370
supp...@joshaven.com<mailto:supp...@joshaven.com>


On Dec 18, 2015, at 11:24 AM, Larry Smith 
mailto:lesm...@ecsis.net>> wrote:

Interesting issue.  Installed a Mikrotik RB-2011 at a customer
site (replaced an older Linksys WRT-54G and DSL router with
wireless) and since then the customer says that when the
2011 is on (wireless on) their TV's are fuzzy and the picture
and sound pauses and breaks up.  I can disable the wireless
on the TIK and both TV's clear up immediately.  Have tried
changing frequencies around but that does not seem to help
at all.  Believe they are using just simple desktop "rabbit" ears
for the OTA TV, but have never run into this before.

Any ideas?

--
Larry Smith
lesm...@ecsis.net<mailto:lesm...@ecsis.net>

Re: [AFMUG] OTA TV and WIFI Interference

[Ken Hohhof]

The RB2011 also probably has a higher WiFi power output than the Linksys.  Is 
it close to the TV antenna?  If the TV setup has PIM issues (like dissimilar 
metals or loose/corroded connections), then intermodulation products of any RF 
in the area may be generated.

Indoor rabbit ears are going to be dicey.  They really need something outdoors, 
with a powered preamp at the antenna so the signal coming into the house is 
more robust.

Can you move the RB2011 away from the rabbit ears and TV, or turn down the xmt 
power?  Or if they like the WRT54G, just go back to that.  If you want the 
Mikrotik there as a managed router, turn off the WiFi and use the WRT54G as a 
wireless AP?


From: Chris Wright 
Sent: Friday, December 18, 2015 2:44 PM
To: af@afmug.com 
Subject: Re: [AFMUG] OTA TV and WIFI Interference

That would be my guess. Try using a ground lifter on the RB2011’s power.

 

Chris Wright

Network Administrator

Velociter Wireless

209-838-1221 x115

 

From: Af [mailto:af-boun...@afmug.com] On Behalf Of Joshaven Mailing Lists
Sent: Friday, December 18, 2015 12:34 PM
To: af@afmug.com
Subject: Re: [AFMUG] OTA TV and WIFI Interference

 

Is it possible that it is related to the power maybe you have a ground loop 
caused by something crazy like a ground on the RB-2011 that isn’t in place with 
the Linksys?  I know that other things like this have happened with appliances 
or other powered devices.  Maybe they have need of better home grounding.

 

 

Sincerely,

Joshaven Potter
Google Hangouts: j...@g2wireless.co
Cell & SMS: 1-517-607-9370

supp...@joshaven.com

 

 

  On Dec 18, 2015, at 11:24 AM, Larry Smith  wrote:

   

  Interesting issue.  Installed a Mikrotik RB-2011 at a customer
  site (replaced an older Linksys WRT-54G and DSL router with
  wireless) and since then the customer says that when the
  2011 is on (wireless on) their TV's are fuzzy and the picture 
  and sound pauses and breaks up.  I can disable the wireless
  on the TIK and both TV's clear up immediately.  Have tried 
  changing frequencies around but that does not seem to help
  at all.  Believe they are using just simple desktop "rabbit" ears
  for the OTA TV, but have never run into this before.

  Any ideas?

  -- 
  Larry Smith
  lesm...@ecsis.net

 

Re: [AFMUG] OTA TV and WIFI Interference

[Jaime Solorza]

Yep!"!"
On Dec 18, 2015 9:39 AM, "Chuck McCown"  wrote:

> Wow, analog TV?
> Yes, 100 Mbps ethernet will interfere with analog OTA.
>
> But I figured everyone would be digital by now.
> -Original Message- From: Larry Smith Sent: Friday, December 18,
> 2015 9:24 AM To: memb...@wispa.org ; af@afmug.com Subject: [AFMUG] OTA TV
> and WIFI Interference
> Interesting issue.  Installed a Mikrotik RB-2011 at a customer
> site (replaced an older Linksys WRT-54G and DSL router with
> wireless) and since then the customer says that when the
> 2011 is on (wireless on) their TV's are fuzzy and the picture and sound
> pauses and breaks up.  I can disable the wireless
> on the TIK and both TV's clear up immediately.  Have tried changing
> frequencies around but that does not seem to help
> at all.  Believe they are using just simple desktop "rabbit" ears
> for the OTA TV, but have never run into this before.
>
> Any ideas?
>
> --
> Larry Smith
> lesm...@ecsis.net
>