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Transmitting single pol on a circular license.

T

TXengineer

Guest
Is it legal to transmit on a single polarity if you are licensed to dual?
As long as the ERP, HAAT, and TL is correct.
 
> Is it legal to transmit on a single polarity if you are
> licensed to dual?
> As long as the ERP, HAAT, and TL is correct.

Not if circular is specified on the license. The power split, (50/50), or whatever listed wouldn't be correct. Same goes for "optimized" patterns that are something other than omni. I've actually seen a couple stations get cited for running parasitic elements on a supposed "omni" antenna.
 
Re: Transmitting circular w/ h-pol license.

How about if the situation was reversed? Can a station with a H-pol license go CP with everything else the same? I once talked to a consulting engineer who said that this type of change was authorized years ago to encourage H-pol stations to go CP. This sounds too good to be true. He did say that V-pol only stations, which are fairly rare, are v-pol because of channel 6 interference issues and they cannot go CP which makes sense.

Thoughts?



> > Is it legal to transmit on a single polarity if you are
> > licensed to dual?
> > As long as the ERP, HAAT, and TL is correct.
>
> Not if circular is specified on the license. The power
> split, (50/50), or whatever listed wouldn't be correct.
> Same goes for "optimized" patterns that are something other
> than omni. I've actually seen a couple stations get cited
> for running parasitic elements on a supposed "omni" antenna.
>
 
Re: Transmitting circular w/ h-pol license.

I believe it is a minor change that can be done with a Form 302.
 
Re: Transmitting circular w/ h-pol license.

> I believe it is a minor change that can be done with a Form
> 302.
>

Hmm, I think it has to be a 301 for that. IIRC a station in New York State went from 5.8kW H only to 5.8kW Circular, and had to file a full fledged application to go that far. (The funny thing is that station in question had a circular antenna long before the license change).
 
Re: Transmitting circular w/ h-pol license.

> > I believe it is a minor change that can be done with a
> Form
> > 302.
> >
>
> Hmm, I think it has to be a 301 for that. IIRC a station in
> New York State went from 5.8kW H only to 5.8kW Circular, and
> had to file a full fledged application to go that far. (The
> funny thing is that station in question had a circular
> antenna long before the license change).
>
yea, probably. Those folks are fee-happy. $600 to move an FM antenna 4 feet horizontally (tower replaced)
 
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