John - KD5YI wrote:
N9OGL wrote:
Brenda Ann wrote:

"John - KD5YI" wrote in message
news:AqTBg.55239$Lh4.46900@trnddc02...

Slow Code wrote:

dxAce wrote in
:

N9OGL wrote:



Not Lloyd wrote:


wrote in message
...
are you using an ex Ham transmitter?
I hear with LSB/USB get further than AM but is the LSB really wide
enough for quality audio? Got a grandpappys MP1000 here that will rag
50 watts AM all day long, but the band width is to narrow for
anything like nice music audio... Speech is nice though. Maybe there
is a wider AM filter than stock, some Ham wizardry to make it fit a
decent audio element on to the carrier,
........................................... ...........................

Transmitting on illegal frequencies with an illegal transceiver?
Only stupid Toad would do that.

Gather around the legal frequencies this evening at 14.331 as we get
a forum of LEGAL Hams together to discuss the nefarious activities of
Toad and Roger. Look for this forum to begin on or about nine p.m.
eastern time. Toad cannot join in, nor can KB9RQZ, since they are not
licensed for this freq. Roger needs no invitation...he will lurk and
jam as he sees fit.

Before you go around spouting that I'm running illegal, I would
suggestion that you read Part 15 (47 CFR 15) but more to the point 47
CFR 15.225

How much power you running? Unable to hear you here, but I'll give a
listen again tomorrow if you're still up and running.




10000uV/m at 30m is the maximum. How much power into an isotropic
radiator give 10000uV/m at 30m. Of course, when the antenna has gain,
power has to be reduced to avoid illegal operation.


My guess is 3 mW.

John

The level is the same as emissions within the CB band:


Sec. 15.227 Operation within the band 26.96-27.28 MHz.

(a) The field strength of any emission within this band shall not exceed
10,000 microvolts/meter at 3 meters. The emission limit in this paragraph is
based on measurement instrumentation employing an average detector. The
provisions in Sec. 15.35 for limiting peak emissions apply.

(b) The field strength of any emissions which appear outside of this band
shall not exceed the general radiated emission limits in Sec. 15.209.

I don't know that there is a difference anymore between Part 95 and Part 15
emissions in the CB band... the old Part 15, back when a license was
required, used to be 100mW.


PART 15 in the CB band is 10,000 uV/meter @ 3 meter (100 mw).(Walkie
talkies and cordless phones are also 10,000 uV/meter @3 meters) While
on 13 MHz it's 10,000 uV/meter @ 30 meters or about 1.8 watts at 100
feet.

Todd N9OGL
OMEGA ONE RADIO


You are wrong about the FCC limits on 13 MHz. There is no mention of 10,000
uV/m. Here are the limits:


Sec. 15.225 Operation within the band 13.110-14.010 MHz.

(a) The field strength of any emissions within the band 13.553-

13.567 MHz shall not exceed 15,848 microvolts/meter at 30 meters.

(b) Within the bands 13.410-13.553 MHz and 13.567-13.710 MHz, the

field strength of any emissions shall not exceed 334 microvolts/meter at

30 meters.

(c) Within the bands 13.110-13.410 MHz and 13.710-14.010 MHz the

field strength of any emissions shall not exceed 106 microvolts/meter at

30 meters.


You are also wrong about the power level required to achieve these limits.
The power required is much lower.

Cheers,
John

That's the revised version updated in 2006, the old version was 10,000
uV/m @ 30 meters.

Todd N9OGL