I've had good results with some of the pre-wash detergents, ie: Spray'n
wash, Clorox Stain out, etc.. Just spray it on full strength and use a
small paint or cleaning brush to get the tight spots . Wait a few mins. then
wipe off using damp sponge, (hot water). Then final clean with rubbing
alc
The paint used on Drake front panels is pretty fragile. I'd not
try any harsh cleaners... creme hand cleaner is gentle enough, and I've
tried it with Drake gear with success. I'd not try Windex/Fantastik or
other harsher chems... the paint is pretty thin!
John K5MO
At 12:24 PM 3/23/04 -0600, Ri
Hello Dick;
Your question is one of the more frequent questions that pops up on both
this and the Collins CCA reflector and it almost always generates
considerable commentary. Suggestions range from putting the gear in the
dishwasher for a cycle to taking it to the carwash... although I would NOT
FYI regarding S meter calibration:
Elecraft (www.elecraft.com) has produced one of the best tools I've found
for measuring receiver performance and calibrating S meter readings to the
50 microvolt "standard". It is the "XG1 Receiver Test Oscillator" and it can
be found at http://www.elecraft.com/m
A last comment from my side to this topic: a reliable and
accurate [µV], [dBµV] or [dBm] signal amplitude readout
in
an amateur receiver, that is frequency and bandwith indepen-
dent, is one of the challenges, that directly leads to the
development of something similar to a measurement-class-
rec
Richard,
in case you can and will disassemble the front panel totally
from the rest of the chassis that way, that you have the single
front panel and the knobs available as single part, my experience
is:
Clean it with a stiff-bristled handbrush in warm to hot water
with lot's of soap and lot's of
I have just purchased a Drake set of rigs, R-4C, T-4XC, AC-4, MS-4, and FS-4.
The transmitter front is relatively clean but the receiver and associated
units hae been used by a heavy smoker. There is a considerable difference
in color bwteen the front of the receiver and the transmitter. Also
Tnx to everybody for the explanations that give to the S meter a real
relative value and function. Much more correct it could be just to read the
microvolts indication for signal intensity instead of a S meter settled
following different standards among different receivers. 2 signals with
amplitud
Great explaination Bob,
Yes to all. I have only once in my life seen a receiver that had any "standard" and
that was a receiver from South Africa. I don't now remember who made it, but it was
designed for their equivilent of our FCC. I was calibrated in microvolts and not "S"
units. As I recal
When signal strength meters were added to receivers they were set up measure the
reduction in plate current flow, typically in an AGC controlled IF stage. The AGC
voltage was a high impedance circuit and could hardly drive a milliamp meter. Since
plate current was typically several milliamps, i
Good morning all,
The “standard” in the US has always been what
ever the manufacturer has specified in the manual for a particular rig. Most of
the older equipment I have seen use 50 mv into 50 ohms as the s9 standard, some
use more. What ever your book says it is, is the standard for
Tnx Herbert for your explanation. The issue change
from "to be or not to be" to "db or not db" due to the different used
standards. Also if you do another simple calculation in db as for the hereunder
listed table, it looks the receiver dynamic range has to be, by considering as
receiver n
Months ago, i have read in a publication, that "S9" in the US
corresponds to 50[µV] into 50[Ohms] and that one S-unit is
5[dB]. In Europe, "S9" is equal to 100[µV] into 50[Ohms]
and
one S-unit corresponds to 6[dB]. I have to double check, if my
remembrance according this article is right, but i t
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