Download Alpha 9500 HF Specifications

Alpha 9500 HF Linear Amplifier Operating Manual
Terminology
Alpha Radio Products
Product Release 1
F
FCC — Federal Communications Commission.
For more information, go to www.fcc.gov.
FM — Frequency modulation. Modulation scheme
in which information is conveyed over a carrier
wave by variations in frequency.
FSK — Frequency-shift keying. Type of
frequency modulation in which information is
conveyed by shifts in the output frequency
between predetermined values.
H
HF — High frequency. Radio frequency within the
range 3–30 MHz.
HV — High voltage. Electrical circuit in which the
voltage used presents risk of both electric shock
and electrical arcing.
Hz — Hertz. One periodic event per second.
I
Ip — Idling plate current. Plate current measured
when the amplifier is keyed and RF is not
present.
K
key — Signal from the radio to the amplifier that
instructs the amplifier to switch from receive to
transmit mode because the radio is ready to
generate RF power. The (programmable) delay
between keydown and RF out is generally 8–12
ms. When the amplifier is keyed, it is in State 5.
kV — Kilovolt. 1000 V.
kVA — Kilovolt-ampere. 1000-W capability.
kVA * 0.8 = kilowatts.
kW — Kilowatt. 1000 W.
L
LED — Light-emitting diode. Semiconductor
diode that emits incoherent narrow-spectrum
light, providing a form of electroluminescence.
Terminology–2
LV — Low voltage. Electrical circuit in which the
voltage used presents risk of electric shock but
only minor risk of electrical arcing.
DOCNUMBER 9500
Document Issue 1, Revision 7
June 2009