Limited One Year Warranty
148 NW ST Specifications
33
32
G E N E RA L
C H A N N E L S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 AM, 40 LSB, 40 USB
FREQUENCY RA N G E. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26.965 TO 27.405 MHZ
FREQUENCY CO N T RO L. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PHASE LOCK LOOP (PPL) SYNTHESIZER
FREQUENCY TO L E RA N C E. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 . 0 0 5 %
FREQUENCY STA B I L I TY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 . 0 0 1 %
O P E RATING T E M P E RATURE RA N G E. . . . . . . . . . . . . . . . . . . .-30° C TO +50° C
M I C RO P H O N E. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P LUG-IN DYNAMIC WITH PUSH-TO - TALK SWITC H
INPUT VO LTAG E. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13.8V DC NOM. 15.9V MAX . , 11.7V MIN.
(POSITIVE OR NEGATIVE GROUND)
CURRENT DRA I N. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .T RA N S M I T: AM FULL MOD. ,2 . 2 A . SSB 12
WATTS PEP OUTPUT, 2 A .
R E C E I V E :S Q U E LC H E D, 0 . 2 5 A ;M AX . AUDIO
O U T P U T, 0 . 6 A .
S I Z E. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 3 / 8 ”H X 7-7/8”W X 9-1/4” D
W E I G H T. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 LBS.
ANTENNA CO N N E C TO R. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .U H F; S O - 2 3 9
CO LOR LIGHT EMITTING DIODE
M E T E R. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .I L LU M I N AT E D ;I N D I CATES RELATIVE POWER
O U T P U T, RECEIVED SIGNAL STRENGTH AND VS W R
T RA N S M I TT E R
P OWER OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AM 4 WATTS , SSB 12 WATTS ,P E P
M O D U LAT I O N. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HIGH- AND LOW - L EVEL CLASS B, AMPLITUDE
M O D U LAT I O N
I N T E R M O D U LATION DISTO RT I O N. . . . . . . . . . . . . . . . . . . . . .S S B : 3RD ORDER, MORE THAN -25d B
5TH ORDER, MORE THAN -35d B
SSB CARRIER SUPPRESSION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55 d B
U N WANTED SIDEBA N D. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 d B
FREQUENCY RESPONSE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AM AND SSB; 300 TO 2500 HZ
OUTPUT IMPEDANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 OHMS, U N BA LA N C E D
OUTPUT INDICATO R S. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .METER SHOWS RELATIVE RF OUTPUT POWER
AND SWR.T RANSMIT LED GLOWS RED
WHEN T RA N S M I TTER IS IN OPERAT I O N .
R E C E I V E R
S E N S I T I V I TY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .S S B : 0.25 µV FOR 10 d B (S+N) /N AT
G R E ATER THAN 1/2-WATT OF AUDIO OUTPUT
A M : 0.5 µV FOR 10 d B (S+N) /N AT
G R E ATER THAN 1/2-WATT OF AUDIO OUTPUT
S E L E C T I V I TY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A M :7.8 KHZ, 50 d B @ 9KHZ
S S B : 6 d B @ 1.1 KHZ, 60 d B @ 2.3 KHZ
I M AGE REJECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MORE THAN 65 d B
A D J ACENT-CHANNEL REJECTION. . . . . . . . . . . . . . . . . . . . . . . .60 d B AM & 70 d BS S B
IF FREQUENCIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A M : 7.8MHZ 1ST IF, 455 KHZ 2 ND IF
S S B : 8.7 MHZ
AM & SSB RF GAIN CO N T ROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 d BA D J U S TABLE FOR OPTIMUM SIGNAL
R E C E P T I O N
AU TO M ATIC GAIN CO N T ROL (AG C ). . . . . . . . . . . . . . . . . . . .LESS THAN 10 d B CHANGE IN AUDIO OUTPUT
FOR INPUTS FROM 10 TO 100,000 MICRO VO LTS
NOISE BLA N K E R. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .RF TY P E, EFFECTIVE ON AM AND SSB
A N L. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .S W I TC H A B L E
S Q U E LC H. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A D J U S TA B L E ;THRESHOLD LESS THAN 0.25 µV
VOICE LOCK RA N G E. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+/- 1.5 KHZ
AUDIO OUTPUT POW E R. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 WATTS INTO 8 OHMS
FREQUENCY RESPONSE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300 TO 2500 HZ
D I S TO RT I O N. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .LESS THAN 0 % @ 0 WATTS @ 0000 HZ??
BU I LT-IN SPEAKER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 OHMS, 5 WATTS
E XTERNAL SPEAKER (NOT SUPPLIED) . . . . . . . . . . . . . . . .8 OHMS; DISABLES INTERNAL SPEAKER WHEN
CO N N E C T E D
PA SYS T E M
P OWER OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 WATTS INTO EXTERNAL SPEAKER
E XTERNAL SPEAKER FOR PA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 OHM, 4 WATTS MIN.
( N OT SUPPLIED)
( S P E C I F I CATIONS SUBJECT TO CHANGE WITHOUT NOT I C E )
CO B RA ELECTRONICS CO R P O RAT I O N wa rra nts that its
CO B RA CB ra d i o s, and the co m po n e nt parts there o f, will be
f ree of defe cts in wo rkmanship and mate rials for pe ri od of
two (2) year from date of first consumer purc h a s e.This wa r-
ra nty may be enfo rced by the first consumer purc h a s e r, p ro-
vided that the prod u ct is utilized within the U.S.A.
CO B RA will, without charg e, repair or re p l a ce, at its option,
d e fe ct i ve CB ra d i o s, p rod u cts or co m po n e nt parts upo n
d e l i ve ry to the CO B RA facto ry Se rv i ce De p a rt m e nt, a c co m-
panied by proof of the date of first consumer purc h a s e, s u c h
as a duplicated co py of a sales re ce i p t .
You must pay any initial shipping charges re q u i red to ship
the prod u ct for wa rra nty serv i ce, but the re t u rn charges will
be at Co b ra’s ex pe n s e, if the prod u ct is re p a i red or re p l a ce d
under wa rra nty.
Exc l u s i o n s:This limited wa rra nty does not apply; 1.) to any
p rod u ct damaged by accident ; 2.) in the eve nt of misuse or
abuse of the prod u ct or as a result of unauthori zed alte r-
ations or re p a i r s ; 3.) if the serial number has been alte re d,
d e f a ced or re m ove d ; 4.) if the owner of the prod u ct re s i d e s
outside the U.S.A.
All implied wa rra nt i e s, including wa rra nties of merc h a nt a b i l i-
ty and fitness for a particular purpose are limited in durat i o n
to the length of this wa rra nty. CO B RA shall not be liable fo r
a ny incident a l , co n s e q u e ntial or other damages; i n c l u d i n g,
without limitat i o n , damages resulting from loss of use or
cost of installat i o n .
Some states do not allow limitations on how long an implied
wa rra nty lasts and / or do not allow the exclusion or limita-
tion of incidental or co n s e q u e ntial damages, so the above
l i m i t ations may not apply to yo u.
All implied wa rra nt i e s, including wa rra nties of mer-
c h a nt a b i l i ty and fitness for a particular purpose are lim-
i ted in duration to the length of this wa rra nty. CO B RA
shall not be liable for any incident a l , co n s e q u e ntial or
other damages; i n c l u d i n g, without limitat i o n ,d a m a g e s
resulting from loss of use or cost of installat i o n .
Some states do not allow limitations on how long an
implied wa rra nty lasts and / or do not allow the exc l u-
sion or limitation of incidental or co n s e q u e ntial dam-
a g e s, so the above limitations may not apply to yo u.
Cobra Electronics
Corporation
6500 West Cortland Street
Chicago, Illinois 60707
148 NW ST manual 3.3 6/15/99 3:12 PM Page 32
