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From DIAB
Product Announcements
Topics of Interest
Wireline modems were for use over dial-up or leased telephone-type lines and are divided
into two classes of specifications: Bell (the name Bell is generally no longer used, just the
specification...
(Read More)
Amplitude modulation is the process whereby the amplitude of a carrier wave (usually a
sine wave) is varied according to the information that is to be transmitted. Amplitude modulation
involves more...
(Read More)
In this chapter we have discussed modems, from low speed to high speed, that operate
over the typical telephone wireline. Data speeds increased from the high speed of the early
1970s (2,400 bps) to...
(Read More)
Schlumberger Tool Mnemonics
Mnemonic
Type
Mode
Application
Description
CALAA
CCL
WIRELINE
Collar_Locator
Casing Anomaly Locator AA
CALB
CCL...
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Modulation is the process whereby a “carrier’s” characteristic is modified to contain the information
that is to be transmitted. The sine wave has three characteristics that may be...
(Read More)
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