Interference Report Form
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Band QRM by VU2POP
Courtesy: A. R. Prathap Kumar, VU2POP
As you are all aware that the Long Range Cordless
phones have infested the 130-180 Mhz band, more so causing severe QRM to the 144 - 146 Mhz
Ham band. These LRCs have a range of more than 15-20 kms.
We in Bangalore face the the QRM round the clock from hundreds of these units and had
reported the matter to WPC and Dept Of Telephones, alongwith newspaper articles mentioning
its nuisance and illegality to create awareness among the general public.
Though some have refrained from using it, day by day more and more are purchasing and
operating them causing QRM not only to hams but to the other authorised VHF band users
like the Police, Airband, Fire, Hams, etc etc.
In our newspaper articles we had mentioned the extent of QRM it would cause to the various
licenced users but we received no response from WPC or DOT.
It has also been reported from various other cities and towns across our country about the
extent of QRM they cause.
Now WPC has woken up to the long range cordless QRM becoz it was observed and reported by
the Airline pilots around Rajkot and Ahmedabad areas that the phone conversations were
interefering with their communication channels.
It was first assumed to be Ham talk but they have now understood it be from these LRCs. (
lets not take the blame for it, sitting quiet )
DGCA has made strong report of such QRM to WPC and as WPC does not have wide and extensive
monitoring setup has now requested Hams to provide any kind of information with regard to
User names, phone nos, frequencies, etc OR even locations of such long range cordless
antennas. One could easily spot such antennas becoz they look like a Trishul with ground
You may fax or email the information to any one of the following
VU2SDN Sahar Fax 011-2622521
VU2ZAP Raj Fax 080-2258454 or email email@example.com
VU2POP Pop Fax 080-3388073 or email firstname.lastname@example.org
All are requested to kindly support this movement to assist WPC in wiping out such QRM
from our bands and maybe WPC would recognise the services and usefulness of Hams.
So happy hunting.