CQ
REVIEWS:
The JRC JRL-2000F
HF Linear Amplifier
P erhaps
Ja
pan Radio Com pany is
best known for its commercial marine
equ
lished themselves as a supplie r 01high-
qua
ipment, but they also h
lity radioe
quipment
for theamateu r
ave
es
tab-
radio market
The first thing thai Im
pr
essed me
when I removed the amplifier from its
carton was the nice. "clean"
appear
ance. Not only should this please the
ama
equipmentwill look
icated shack or in a room shared
entire family.
teur,butthe XYL or OM as well. The
good
eitherin a
by
ded
the
BY
Operating
Rated
Output
Harmonics
Intermodulatlon
-
-
Input
Exciting
Frequency
Power
Power
Input
Temperature
output
impedance
supply
consumption:
power
PAUL
frequency
power:
impedance
:
distortion
:
power:
switching
voltage:
factor:
range:
CARR", N4pe
bands:
:
(IMD) :
time:
1.8.3.5 . 7, 10. 14, 18 & 21
(24
sse 1
cw 1
FSK/SSTV 1 kW· 1
so
--60
--35
50Q unbalanced
l ess than
85
2.
95%
_10010 40°C
&
28
MHz
kW
PEP' 100%
sw
- 1
n
unba
dB
dB or
l
OO
W max .
10
264 VAG, single-phase
5 kVA or less (at 1k
or
lanced
or less
less
0.1 sec.
more (at 1kW output)
bands
00
% duty cvce.
. VSWR 3.0
below PEP (at 1
: antenna tuner ooly )
duty
00%
duty
Wo
MHz
cyc
24
cycle
(16
utput)
amat
le, 24
hour.
.7- 150U )
kWoutput)
.
eur
hou
'14
hour.
ba
r.
nds
.
An Overview
Now
claime
2CXX>F
matic
which
a rating of 1
·97 West Poi
362
let's
d
is a fully transis torize d,fully
HF linear amplifier. T
has
by
see
this
48
COO
RF
nt
65
some
equi
powe
watts output at a 1
Rd..
of the features
pment. The JRL·
he
r MOSFETs. h
Jac
kson
ville. AL
au
to-
final,
as
00
%
Protection
Dimensions
Weight:
'Note: Rated output on 200-240
750 WPEP.
circuits
:
T
abl
e 1- Specifications
:
VAG.
of
PA excess current; PA
load:AC power supply excess
supply
na
na
Appmx.
Approx
The
the
VSWR; exciting
matChing anomaly,
rated output power on lao -
JRC
overheat
trw
62
JRL
xt2"H)(
Ibs
·2OOQF
PA failure : excessive
power
ov
linear
erheat: PA abnormal
voltage : power
araen-
excess : and
trO
120
amp
VAG
lifie
ar
is
r,
aen-
Front view
Say
Vou
of
theJRL
Saw II In
and
CO
-2000F
remotely
amplifier
ope
. The
rated
unit
via the
can
be
placed
NCH-365
anywher
Controller
.
e in
the
shack
Resembl
NCH-365
to
check
as
you
ing
and
a TV
Remote
chan
w
ou
ld
remote
Contro
ge
things
switch
Mav 1993 • CO • 27
contro
llerallows
as
TV channels.
l, the
you
easily
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Ext~
Corrrnlllications
Corrmunicalions
CoJrmunications
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This
is
what the solid-state PAmodule looks like.
f1l).12
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ttr.t-54
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HS-51
HS-6O
UT-40
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28-MHz.
14, 18,
2-MeIer,
21, 24,
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7'9.!l!S
357.00
47.00
duty
(Yes,
featurethat
cycle
I
did
(GW
and
SSB) for 24 hours.
say 24 hours.) The second
caught
my
ey
ewas the builtin automatic antenna tuner. This tuner
has a
nels to
memory
provide
also a self-contained switching
supply
(input voltage 80 to 264 VAG).
Additionally, there are
connec
ting
instantly selectable
capacity
of 1820
chan-
for instant OSY. There is
power
pr
ovisions for
four antennas that are
by
pan el-mounted
push-button switches.
unit will
amateur
meters. On 12
develop
bands
full output
power
on all
from 160 meters to 15
and
10 meters. only the
automaticantenna tuner is functional as
shipped.
I
found
no
condition
where
thesepublished specificationswere not
met or
made
by
following instructions
exceeded.
to operate on 12 and 10 meters
JRG. These instruc tions will be su
a
fte
only
r recei
The amplifier
pt
of a
cop
can
supplied
pp
be
by
lied
y of a valid
amateur license for those bands.
AAX-22C8
ARX-4SC8
M·2lO
A5O-5S
124\\'8
A
l47·11146To146-Miz.,11-E1emert
1382
224\\'8
225WB
144To
A449-6
.4449-11
22Q.t.tiz.
4SQ.t.tiz.
2~
SOTo
1~
J44Q.Wiz.
S4-1ottL
To
leMHI.,
148
222
To
225-MHz.
222
To225-l.tiz.
440
To
45Q.MHz.
44OTo
,
Ringo
,
Ringo
,
Rang«
Rangtt
,
RiI9oVri::af
5-EIement
4-E1emert8elrn__._
MIlL,l3-EIemetC
.
4-E1emert
,
15-EIemertBeam_...
,
6-E1ernn
450
a.ttz..
ll-E1emllnI
II
II
ee.n
Bearn
ASTRON
R5-7A
RS-12A13.8
RS-2M
RS-J5'
13.SVOC
, 7
vue
13.8
vue
13
.8
VOC
An1l
,
121¥nplnl.
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2OATtplnl.
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VerticaI
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8elITl_.__
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Cart.
ConI.
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55
$49
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88
141.50
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00
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.00
.50
,50
,51)
Think you haveheardeverything?Not
quite. There is also a remote-control
very
much
like a
TV
remote. which
unit
allows you to moun t the unit anywhere
in the
ham
shack
if you so desire.
Specifications
Table I lists the electrical
specifucations
01
the JRG
and
physical
2OOOF.
The
Procedure
Any
50
as
the
ceiver
nect
essary. If the
HF transmitter or transceiver with a
ohm
output
an exciter
Japan
and
cable
Radio Co. JST-135 HF trans-
the prefabricated intercon-
provided. but that isn't nec-
impedance
to
the JRL· 2000F. I used
maximum
can
be
output
of the
used
RS-12M
R5-2Cf.1
RS-3SM
V5-3SM
same
same
Same
Samek;
LP
stl
M:::
Mel
PrJ:es
~
As
As
As
l"5lJ'lW'a
La-il!:ue
1112
SCRANTON,
GRANDVIEW
PHONE
R5-12A,
R5-2OA,
R5-3SA.
RS-35M
V1~
~
Orden
To
et.nge
Wilh
Wilh
Wilh
,
hl
MeIers
MeIers
MeIers
~
VoIXar,
He
Ne
fJ-
WItIoJ
~1tfe4.
STREET
PENNSYlVANIA
(717) 343-2124
~
_
AdciI.bnaI
'
~
~
18500
82.50
108,51)
159.50
171.5I)
An
interior view
of
the antenna switching network.
CIRCLE 22 ON READER SERVICE CARD
28 • CO • May 1993
Say You SawIt In CO
tion. I
am
ha
ppy
to re
po
rt th
ai
the test
unit easily
Anothe r test which is difficult to quantify wasthe test for
co
untry
channels that I watch (there is no CATV
at this location). My
meter lo
a
bo
ve
my
for
TVI
they shou
cnuons
showed only a slight flicker
loca ted in the
on the
tests. If there are any
.Iam
exceeded
ab
out65 miles from two VHF
op
amp
is
TV
ld
show
happy
lifier
locat
antenna. Iuse this antena
ham
pe
the rating.
TV
I. My QTH
3/4 wavel
ed
up
to report that the test
shack with the meter
aking at
abo
under these con-
ut
problems
on
is
eng
15 feet
a
TV
50
0 w
in the
TV
th 80
set
all
,
s
output. That test was very impressive!
Additionally,
indicated a "clean" signal with plenty of
many
unsolicited
repo
rts
punch.
The
cuits make it almost
out
trolled unit makes many critical deci-
sions for you.You just sitbackand enjoy
the results
The unitisavailable from
Company
New
$4900
many
a
bad
York , NY 10022. The
bu
ilt-in fault protection cir-
signal . The
I
,Ltd.,
430
imposs
computer-con-
Japan
ParkAve.
price
ible to put
2nd
. This is a very impressive pi
Radio
floor,
class
ec
is
e
If
you were to remove the top cover, you would see the matching network.
excitere
rent circuit in the
activated and distortion
sure that the ALC cont rol line is
nec ted
exceed
There are provisions for fourseparate
antennas. These antennas shoul d have
an impe
ohmsto staywithin the limitsof the auto-
ma
tic antenna tuner (VSWR of 3 1 or
less ).
Ifthe exciter is a JST
nectthe pref
in the instruction booklet.
is different , there are clear instructions
to show
all necessa ry connections.
Perhaps a brief synopsis of the front-
panel con trols is in order.
Power
on and off. When the
LED
tuner will function. When power is off,
the antenna switches will function , but
the amplifier or automaticantenna tuner
will not function: straight-th rough
ation is possi ble.
xcee
ds
1
00
pow
watts.th
er supply
may
so the exciter outpu t d
proper
dance
is
lit
prope
Switch
an
limits.
be
tw
ee
n 16.7
-1
35,simply con-
abricat
r procedures for
d the au
ed
cablesas shown
:Turns the main p
powe
toma
eo
ver-c ur-
may
result. Be
oe
and150
be
co
n-
s not
IIyour exciter
making
ow
er
r is on, the
tic
antenna
ope
r-
to re
ALC. Betwee n the two meters there are
two eight-segm ent readouts to indicate
ba
ing the tune-up
the antenna
data
lit
drive in
drive level is okay; if the light is orange,
the amplifier is being overdriven
exciter. Si
The Remote-Control
As indica ted earlier, there is a remote-
control unit (very similar to a
control unit) whi
tions as the
amplifier. This allo ws the a
place
retaining full
pos
operator
ad
nd
Tune
du
drain
ofo
in memory. An associated LED
ring the procedure. There is also a
pe
Switch
dica
mp
cu
rrent.
rationorotherfunctionsdur-
procedure
: Automatically
and
tor. If the li
ly r
sto res the
edu
dra
ce the dri
in voltage, or
.
gh
t is
matching
gre
en, the
ve
po
Unit
TV
remote-
ch
has the same func -
co
ntrols on the front of the
mp
d across the shack if desired while
ition.
Irs
con
a great
trol at the
~Iazy
ham"device
lifier to be
opera
Conveniences
tunes
by
the
wer.
ting
is
of equipment. •
BASE
STATION
ANTENNA
HF
500
Model
Continuous
Frequency
Por
iltiIll_
Ip<l'dal
d
oeployN.ad
JoI.
comllloerdal ilnd
Km
SG-I03T
are
iI.,p
-
1I'OPElrrTOTAL
-<l
HIGH
.
1.8-30
SSB
BROADBAND
SG"103
cn
oel'Kied
pl
ied wi"'
J
",",£
PERF
3106
$195.00
ANTENNA
and
Coverage
profftilloaal
or lM:IkiIJ o
tKtIc.al
I.
aIl
...
SeM
tu.l0
lMtdlolli-.
LENCTH
NN,L
RADIATING
ORMANCE
MHZ
DB
loobo¥e
RANGE
GAIN
, MHaI
SG-I03T
pec
riltlo
,.10
lll
"
.
c.u
mhnllel
Itea.
-
b_
n.
b.
.
~
PA
for the
lit and the
maticantennatunerwill function
power amplifier
Thereare
the front panel ,
switched mcrtimeters. The left meter is
switched
output. The right meter can
Say You Saw It In CO
Switch:
pow
er amplifier. If the LED is not
po
two
10
This turns on the power
wer switch is on, the auto-
and
will operate.
conventional meters on
both
indica
te VSWR
func
be
tioning
or
switch
p
the
ow
as
er
ed
This IS the first
con trolled a
sure to opera te,
impressed woul d
ment. As stated earl
where the specifications were not met
or
exceeded
the
po
unit is 7
am
plifier with 115V
wer sup
50
mpl
ply
watts
co
mpletely c
ifier I h
and
be
ie
r, Ifound no
. For
.The rated
example
PEP
om
puter-
av
e h
ad
the plea-
to say I was
an
under this con di-
und
. I
inpu
output
erstate-
place
operated
t 10 the
from the
~
~
' 0
SGC,
Inc,
Bellevue,
Tel:
Fax:
Visa
206-746-6310
206-746-6384
f
sc,
&:
Mauer
CIRCLE 23 ON READER SERVICE CARD
.....
lrins
VSWI
Fftl
typkaJ
onnll
Box 3526
WA
/O.IT
98009 U
-"",
May
1993
nol
below
ien p
_ _
card
..
2>1
SA
<t
,
a
ccepted
•
CO
• 29
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