> try here....
>
>
http://www.geocities.com/Area51/Nebula/3736/
>
> Thanks,
>
Looks like I am stuck. This is what I found here on the 100 (not 100b) from the reviewer
A REPORT ON A RAMSEY FM100 KIT
From:
[email protected] (John)
"
After assembly, here are basic observations of my particular kit:
As far a the specs are concerned, the FM100 is 'ok' for the price ,however,
in my opinion it isn't a "PROFESSIONAL FM Transmitter" as is emblazoned on the
front panel and printed within the manual.
My freshly built FM100 works in that it will go to the desired frequency
and has an OK kind of stereo like signal.... all the buttons and knobs do
what they say. But for me, the FM100 has a way to go to really be a
'PROFESSIONAL' FM stereo exciter/transmitter."
" Since Ramsey chose not to publish specs on separation, signal to noise
ratio and frequency response, I won't either."
"I have to clarify that, yes I did assemble the FM100 correctly and yes I did
use high quality HP test equipment and a top of the line Pioneer tuner to
check things out."
----------------------------------------------
This is all I could find on the 25B as far as noise and audio
Ramsey FM25B Review by FM Guy:
"Overall, it sounds like a somewhat weak FM station even when the
receiver is right next to the FM25B. You get some "fuzz" and odd stereo
artifacts at times. If you overdrive the audio input, it causes most
receivers to drop in and out of stereo in step with the music (it's also
well into audible distortion while it's doing this).
The frequency response seems quite good. I haven't measured it yet (I
might later, along with actual THD and S/N ratios). Likewise, the
stereo separation is also OK. For an all-in-one FM chip, the BH1415F
used in the FM25B does a decent job.
Ok, so enough technical stuff, how does it sound? Well... I guess that
depends on how fussy you are. As others have reported, there's some
buzz and hum that's audible during quieter passages and between songs.
It seems to be due to RF leakage back into the circuitry.
The FM25B sounds reasonably good but far from great. It won't put your
favorite FM station to shame as Ramsey claims unless your favorite
station is a hundred miles away. The distortion steadily rises with
increasing deviation (audio level) and at low audio levels the signal
gets buried in assorted forms of noise. So you're between a rock and
hard place when setting levels."
Update:
He-He This is funny, or sad! Just read the rest in the EDM FAQ document
"How does your unit compare to X,Y and Z product?
We provide detailed specifications resulting from our test results, using random test units to sample data. These figures are there in black and white to read, not like the vague "Excellent", "Professional Grade", "High Quality", "Low Noise" statements you get from many other competitors. Ask yourself: "How long is a piece of string?" To compare, ask for their figures. You will be very lucky if they know what you are talking about, and even luckier to get it from them. They may have something to hide from you, we don't!"
Maybe some employee from Ramsey that (surely must be) reading these boards can provide more information for us?
>
> >
> > Where can I find more detailed published technical specs
> on
> > the Ramsey stuff?
> > Searched their homepage but found nothing. I want to
> compare
> > apples with apples.
> > >
> >
>
