[Scan-DC] Classical music on 149.750 mhz

[john wilson]

1.    The limits are specified in the appropriate FCC rule/regulation.  I believe they would be documented in the CFR Part 47 which might be available on the internet.  You can email the FCC tech help and they probably can tell you where to search.  I have a two meter transceiver using a discone for the local repeater and a 144/440 dual band transceiver using a tower mounted Diamond dual band ground plane antenna.  I have never had any ingress of cable tv signals on either of the rigs.  It seems to me from your post that there is excessive leakage.  I would not hesitate to call Cox and ask them to have someone check out the neighborhood cable distribution system.  Tell them you are receiving portions of
their video and audio signals on your radio receiver that are interfering with reception.  If asked give the frequencies experiencing the RFI.  I would not digress beyond that.   That's the type of call I made when I had a cable tv RFI.

2.  Ch. 18 495.2500 mhz. V, 496.7500 mhz, V; Ch. 23 501.250 mhz. V, 505.750 mhz. A; Ch. 24 531.250 V, 535.750 mhz. A.



Stephen Platt wrote:

> ---- There will be some RF leakage on cable tv distribution systems.  The issue is
> whether or not it exceeds FCC maximum set limits.
>
> Yes, I realize there will always some leakage somewhere. I wish I knew what the limits are. I know it
> can't be much!
>
> At my house I pick up channels 18, 23 & 24 on my 144/222 dualband rigs. I had narrowed them down to
> the drop ports on the poles. There seemed to be several locations in the neighborhood. I hadn't called Cox to this point because I'm not sure how much I'm getting INTO the cable system when I'm on the air beyond my
> house. I believe that the sets in my house pick me up from front end overload on the above channels.
> If I am getting into neighbors' sets I don't thing they realize where it's coming from... no calls, visits or vandalized cables yet!! ;-) Also, because I mainly operate packet & APRS from the house they probably have no idea what's going on. There was an incident several years ago when a tech in a Cox signal sniffer truck knocked at the house of a ham running a packet bulletin board system in Virginia Beach and after asking if he had a transmitter on 145.63 told him to shut it down! Seems they had been getting complaints about channel 18 getting barraged by QRM. Needless to say the ham told the tech it's their problem; fix it. Unfortunately a few weeks later he decided to shut down his PBBS permanently.
>
> That incident proved that if there is a TV leakage somewhere in the cable line, outside sigs can get IN.
>
> Often someone who is getting cable without paying for it has done a pitiful job and is the source of many leakage complaints.
>
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