Bremi BRL200 linear
toxic waste
and fitted with 2 new main valves (cant remember the valve numbers) is
worth?
Cheers
tox
Gareth (G1LVN)
news:1f2adfc1.03032...@posting.google.com...
£250 fine £250 costs if you are lucky,
http://www.radio.gov.uk/publication/press/2003/27mar03.htm
else max six months imprisonment and/or a £5,000 fine
JJ
> http://www.radio.gov.uk/publication/press/2003/27mar03.htm
>
> else max six months imprisonment and/or a £5,000 fine
Or if you are an amateur with a class A licence you can use it on 10 meters
without fear of persecution....i mean prosecution! Funny how doing an exam
can get you out of sticky situations like that, and with the same equipment
and 10khz diffrence in frequency too. It's a funny old world.
mike
most hams wouldn't touch a bremi with a barge pole.
just look at it's circuit
perhaps if were fitted with better filters.
mike
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pjj
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citizensband
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Sold for £110.
tox
Gareth (G1LVN)
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> sri disagree
> most hams wouldn't touch a bremi with a barge pole.
Exactly, you may be getting 200watts out, but exactly where in the radio
spectrum is anyones guess.
Philip de Cadenet
>sri disagree
>most hams wouldn't touch a bremi with a barge pole.
>just look at it's circuit
>perhaps if were fitted with better filters.
Unlike some of the Zetagi valve 27MHz amplifiers the Bremi has a Pi-Net
output which you'll find is a pretty efficient filter in itself.
Used on or around it's intended frequency and into a mono-band antenna
with reasonable "Q" you'd find it difficult to improve.
--
Philip de Cadenet G4ZOW
Transmitters 'R' Us
http://www.transmittersrus.com
Philip de Cadenet
>> sri disagree
>> most hams wouldn't touch a bremi with a barge pole.
>
>Exactly, you may be getting 200watts out, but exactly where in the radio
>spectrum is anyones guess.
What did they teach you in your RAE course?
The job of a linear amplifier is to amplify the input without changing
the wave-form.
If there have been no other screwdrivers in your exciter whether it be
made for CB or amateur use other than the manufacturers then you can be
pretty sure that you'll have a well-filtered input signal driving this
amplifier.
Problems only occur when people open their transceivers up to increase
modulation or output power.
" You get out what you put in".
Gareth (G1LVN)
"Philip de Cadenet" <Philst...@thebbc.fslife.co.uk> wrote in message
news:UlTG45E6...@fslife.co.uk...
> Gareth,
>
> >> sri disagree
> >> most hams wouldn't touch a bremi with a barge pole.
> >
> >Exactly, you may be getting 200watts out, but exactly where in the radio
> >spectrum is anyones guess.
>
> What did they teach you in your RAE course?
the 1984 syllabus. 3 years later I left school to study a BEng in Communications
Engineering. Passed with Hons in 1992.
>
> The job of a linear amplifier is to amplify the input without changing
> the wave-form.
>
Yep, and much easier/cheaper to get a valve to be linear than a transister,
that's assuming the power supply (components) are up to the job (which I suspect
they are not)
> If there have been no other screwdrivers in your exciter whether it be
> made for CB or amateur use other than the manufacturers then you can be
> pretty sure that you'll have a well-filtered input signal driving this
> amplifier.
>
maybe the harmonics, parastics, intermods whatever are perfectly acceptable with
4 watts output, but add 16dB and they probably wont.
> Problems only occur when people open their transceivers up to increase
> modulation or output power.
So you are saying that operating an amplifier does not increase the field
strength around the antenna, building, neighbours, round the back of their TVs?
' cause that's what the RIS men will be measuring, when they tip up as a result
of a TVI complaint. Owt much above 1.7v/m and they'll make you turn off whatever
power you are running.
Philip de Cadenet
>So you are saying that operating an amplifier does not increase the field
>strength around the antenna, building, neighbours, round the back of their TVs?
>' cause that's what the RIS men will be measuring, when they tip up as a result
>of a TVI complaint. Owt much above 1.7v/m and they'll make you turn off
>whatever
>power you are running.
No, I did not say that.
Re-read my post.
What you say above is also incorrect.
Plus, you're wandering off the original subject of the Bremi BRL 200.
The selectivity of domestic TV's leaves in most cases a lot to be
desired, especially in low signal area's.
The RIS became the RA many years ago.
On the condition one is running a licensed station should the RA be
brought in to help sort out an interference complaint then in fact they
try to be diplomatic. a simple high pass filter and or braid breaker
sorts out many a TV reception problem with a amateur or CB'er next door.
Telephone interference was rather a hairy problem in the days of illegal
AM activity especially from the over-modulating power mic freaks.
There again petrol pump digital displays caused amusement also.
Shockwave
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