[LeArc] RFI from Walgreens signs

[N2DUP at aol.com]

I thought area hams might be interested in the following.  If you  aren't 
aware, Walgreens' supplier has been trying to get the Macomb City Council  to 
approve a new electronic sign for the store here in Macomb.  If it has  the 
potential to cause interference to hams and the fire department and/or other  
communications, a red flag should be raised.  It might be instructive to  call it 
to the attention of city officials.  The messages below are from a  listserv of 
radio enthusiasts in the Chicago area.
 
73, Chuck Gysi, N2DUP | scanning1.com
  
____________________________________

7a.  
224.740 
Posted by: "k9muy at netscape.net" k9muy at netscape.net   k9muy 
Sat Sep 9, 2006 4:13 pm (PST) 
Don and Group

Walgreens supplier of the LED  signboard is currently going around the south 
Cook County area (MABAS 24) doing  repairs, changes etc to the signboards. 
They wipe out MABAS 24 dispatch  frequency (153.890) within 500 to 1000 feet.

I understand that other fire  fequencies might also have problems. This info 
was sent out as a MABAS  dispatch.

I do not have the Florida company name. Will have name and  telephone number 
Monday (9/11) or  sooner.

Regards
Bob
K9MUY



-----Original  Message-----
From: KA9QJG at WOWWAY.Fro
To:  carmachicago at To:  carmacTo:
Sent: Wed, 6 Sep 2006 2:11  PM
Subject: (CARMA) 224.740



Hello Everyone I have a Repeater  on 224.740 It Covers Most of N/W Indiana
At 99 Percent of the Walgreen  Stores, There is a Dead Carrier with a Buzz
that I can here on this Freq  224.740 for about 3 Blocks, . I have taken a
HT inside but it is Stronger  outside, They do have the New Electronic
display signs up but I have actually  picked this up with that off and the
Store Closed, I know not many Scanners  pick up this freq but if anyone has
one and You happen to be in the Area of a  Walgreen Store, Please Let Me know
if You pick it up too, I would like to  isolate this to being a Wide Spread
interference Before I make a Complaint to  Walgreen or the FCC, They have a
few more Dollars than I do and I want to  make sure .Also It is not a
Harmonic it is Right on 224.740 , this is 24/7  for the last 6 Mo and I
really did not care until a User Complained to Me  about it, You can E-Me
Direct if You like at KA9QJG at WOWWAY.Dir

PS  Anyone in Range Feel free to Use the Repeater 224.740 Out

223.140 In PL  131.8

Happy Scanning

Don  KA9QJG


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Messages in this topic (6) 
7b.  
Re: 224.740 
Posted by: "Don KA9QJG" KA9QJG at WOWWAY.COM 
Sat Sep 9, 2006 4:25 pm (PST) 
Thanks Bob, that is Great info Because, I have a Friend  who is a Radio Tech
at For Motorola Tri City, and He had called Me about  Doing a DF hunt Near a
Walgreen in Lansing Il, They had a Fire Near By and  was getting some type of
Interference, on 153.890 , I will relay this info to  Him too, Maybe I
will take My spectrum Analyzer by there and see what I can  Find. Maybe the
Interference I get on 224.740 is a Harmonic.

Thanks  Don

Happy Scanning

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Messages in this topic (6) 
7c.  
224.740 
Posted by: "k9muy at netscape.net" k9muy at netscape.net   k9muy 
Sat Sep 9, 2006 9:47 pm (PST) 
Lansing has two Walgreen sites. One had a problem and  one did not. Landsing 
Fire Department reported the problem during an MABAS 24  advisor meeting in 
July. I checked the Oak Forest site and found the same  problem on 153.890. A 
telephone call was made to Walgreens and they quickly  responded with fixes by a 
Florida company. Both Lansing and Oak Forest have been  repaired. The loudest 
interference I found was from a store at 183rd and  Halsted. The site would 
open the squelch over 1000 feet from the store.

I  have info that indicates that a car wash located on the NW corner of 
Ridgeland  Ave and Route 83 in Palos Heights also causes problems on 153.890. Do 
not know  if it is the same company.

Also have info that a similar problem exists  on other fire frequencies.

The Walgreen contact is: George Fragias,  847-315-4418, Cell is 847-924-2689. 

The company is Hi-Tech Electronics  in Florida. The phone is 727-531-4800. 
The contact is Steve Taylor in  Engineering on Extension 115.

Both Walgreen and HI-Tech have been real  nice.

There is no complaint filed by us to the FCC. The local FCC office  in Park 
Ridge is aware of the problem and that we are solving the  problem.

Please let me know if anyone else is having problems in their  area.

Robert Small (Bob)
Chief, Emergency Management
City of Oak  Forest

MABAS Division 24
Communications  Advisor

K9MUY







-----Original  Message-----
From: KA9QJG at WOWWAY.Fro
To:  carmachicago at To:  carmacTo:
Sent: Sat, 9 Sep 2006 6:25  PM
Subject: RE: (CARMA) 224.740

Thanks Bob, that is Great info  Because, I have a Friend who is a Radio Tech
at For Motorola Tri City, and He  had called Me about Doing a DF hunt Near a
Walgreen in Lansing Il, They had a  Fire Near By and was getting some type of
Interference, on 153.890 , I will  relay this info to Him too, Maybe I
will take My spectrum Analyzer by there  and see what I can Find. Maybe the
Interference I get on 224.740 is a  Harmonic.

Thanks Don

Happy Scanning

[Non-text portions of  this message have been removed]