18WuD2x

M scan • multiband receiver 459
base line of the reflected signal to determine the
distance to the target.
msec Abbreviation of MILLISECOND. Also, ms.
msg Abbreviation of MESSAGE.
MSI Abbreviation of MEDIUM SCALE INTEGRA-
TION.
MST Abbreviation of MOUNTAIN STANDARD
TIME.
MT Abbreviation of METRIC TON.
MTR Abbreviation of MAGNETIC TAPE RE-
CORDER.
mtr Alternate abbreviation of METER.
MTS Abbreviation for MULTICHANNEL TELEVI-
SION SOUND.
M-type backward-wave oscillator A broadband,
voltage-tuned oscillator in which the electrons interact
with a backward traveling radio-frequency
wave. Compare O-TYPE BACKWARD-WAVE OS-
CILLATOR.
mu Symbol, µ. 1. Abbreviation of the prefix MI-
CRO-. 2. Expression for AMPLIFICATION
FACTOR. 3. Expression for PERMEABILITY.
4. Expression for MICRON. 5. Expression for ELEC-
TRIC MOMENT. 6. Expression for INDUCTIVITY.
7. Expression for MAGNETIC MOMENT. 8. Expression
for MOLECULAR CONDUCTIVITY.
µ 1. Symbol for MU.
µA Abbreviation of MICROAMPERE.
µ B Symbol for BOHR MAGNETON.
µb Abbreviation of MICROBAR.
µCi Abbreviation of MICROCURIE.
µ e Symbol for ELECTRON MAGNETIC MOMENT.
µF Abbreviation of MICROFARAD.
µg Abbreviation of MICROGRAM.
µH Abbreviation of MICROHENRY.
µin Abbreviation of MICROINCH.
µl Abbreviation of MICROLITER.
µmm Abbreviation of micromillimeter (see NANO-
METER).
µ n Symbol for NUCLEAR MAGNETON.
µ o Symbol for FREE-SPACE PERMEABILITY CON-
STANT.
µ p Symbol for PROTON MAGNETIC MOMENT.
µP Abbreviation of MICROPROCESSOR.
µrd Abbreviation of MICRORUTHERFORD.
µS Abbreviation of MICROSIEMENS.
µs Abbreviation of MICROSECOND. (Also, µsec.)
µV Abbreviation of MICROVOLT.
µV/m Abbreviation of MICROVOLTS PER METER.
µW Abbreviation of MICROWATT.
MUF Abbreviation of MAXIMUM USABLE FRE-
QUENCY.
mu factor See MU, 2.
mu law In communications, a companding standard
generally used in the United States and
Canada.
Muller tube A tube that conducts by means of ionization
of an internal gas. It is used for radiation
detection.
multiaddress In a computer, a multiple memory
location.
multiband amplifier A radio-frequency power amplifier
capable of operation on more than one frequency
band. The bands are often (but not
always) harmonically related. Compare WIDE-
BAND AMPLIFIER.
multiband antenna A single antenna, such as one
used in amateur radio and television reception,
operated in several frequency bands or channels.
The bands are often (but not always) harmonically
related.
Balanced
feed line
Radiating elements
Balun
Radio
Radiating element
Transmatch
multiband antenna
Coaxial
feed line
Coaxial
line
Radio
multiband device A device (such as a tuner, receiver,
transmitter, or test instrument) that operates
in several selectable frequency bands.
multiband oscilloscope See WIDEBAND OSCIL-
LOSCOPE.
multiband receiver A communications receiver
capable of operation on more than one frequency
band. Such a receiver might, but does not necessarily,
provide continuous coverage over a wide