am..Brew

MFJ, Bencher and Curtis team up to bring you America 's most popular
keyer in a compact package for smooth easy CW
Artificial RF Ground
MfH31
' 7 9 05
You can
crelil in
. rtifidli RF
ground and eliminate RF "bites",
feedback. TVI and RFI when you let the
MFJ·931 resonate a random length of
wire and tum it into a tuned CCUlter·
poise. MFJ. 931 also lets you electrically
place • f. r , . , , RF ground directty II
,our rig • no matter how far away il is
-by tunu'lQ out the reactance of your
ground connecbon wire. 1'/p,3'1u7 in.
Antenna Bridge W J.204B
Mow you can quickly ' 7 9 0 5
optimize your antenna tor
peak performance with this
portable. totally sencontained
antenna bridQe.
Mo other equipment
neeoed . take it to your
antenna site. Determine if
YQUr antenna is 100 long or
too short, measure its
resonant frequency and
antenna resistance to 500
ohms. It's the easiest. most
convenient way 10 determine antenna
performance. Built·in resistance bfidge,
null meter. tunable osciliatOf·driver
(1.8·30..MHz). Use 9 V battery or 110
VAC w4h AC adapter, $9.95.
SUper Active Antenna
'W0ItI RIdII TV Mlndbook' says
'*J-1Clj24
rtlMa
is "a first rate easv.tc-cceate
active quiet ... excenett
dynarn range good gain ... very low
noise f Of.•• Mlad frequency coverage
... ext t choice."
Mou it outdoors away from electrical
noise I maximl,.ln S9'a1,minimum noise.
MFJ.1 4 covers 50 KHz to 30 MHz
..'"
Real," strong. clear Signals
Irom all over lhe world. 20 dB
arteouatc.gaincontrol. ON LED
Switch two receivers and aux.
or active antenna. 6x23x5 in.
Remote unit has 54 inch whip
a
50 ft. coax and
connector. 3x2x4
,:4" in. 12 VDC or
• .1-1024 ' 1 2 8 U 110 VAC with
MFJ·131 2, $9.95.
• One year unconditional guarantee · 30 day
monlY blck guarantee (less slh) on orders from
MFJ • Add $5.00 each sIh • Free catalog
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MFJ Coax Antenna Switches
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---
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. . . - .,
~,W
'34 05 . ...1701 '21 8 5 W ...1702 '5905 MfJ.1704
Sftec1 any of several antennas lrom your opefating desk with these MFJ
Coax SWItches. They leature mounting holes and actcnane Qfounding of
weseo termmats. They come with MFJs one yea!" UlM:onditionai guarantee.
MFJ-1701 . 534.95. Six position antenna switch. 50-239 conoectOfS. 50-75
otvn loads. 2 KW PEP, 1 KW CW. Black a1lJ1linum 10x3x1'h inch cabinet.
MfJ-1702, $21.95. 2 positions. caVity conslruction. 2.5 KW PEP, 1 KW CWo
Insertion loss below .2 dB. 50 dB isolation at 450 Wiz. 50 atm. 3x2x2 in.
MFJ-1704. $59.95. 4 position Cavity SWitch with LighteninglSurge protection
cevce. center Ground position. 2.5 KW PEP. 1 KW CWoExtremely low SWR.
lSOIatiOll better than 50 dB 500 MHz. Negligtble loss . 50 ohm. 6'1.x4 V.x1 '
/. in.
" Dry" Dummy Loads for HFIVHF/UHF
-..
,"
MFH 60 MFJ.262 MFJ·26.f
MFJ's compact SpeakerlMics let you carry your HT on your
belt and never have to remove it to monitor calls or talk.
You gel a wide range speaker and first-rate electret rmc
element tor superb audio on both transmit and receive.
Earphone jack, handy lapel/pocket clip, PIT, lightweight
retractable cord. Gray. One year uncondlllonil guarantee.
MFJ·284 fits Icom. vaesu. Santee. MFJ·286 tits Kenwood.
MFJ
N'W
'28 8 5 '89 05 '109 85
MFJ has a tuil line 01 dummy loads to suit your needs. Use a dummy load
for luning 10 reduce needless (and illegal) aRM and save your finals.
MFJ·260, $28.95. Air cooled. non-mduchve 50 ohm resistor. SO-239
connector. Handles 300 watts. Run lull load 10f 30 seccrds. derating curve to
5 minutes. SWR less than 1.3:1 to 30 MHz. 1.5:1 30-60 MHz. 2 '
/u2Vu7 in.
MFJ.262.$69.95. Handles 1 KW. SWR less than 1.5:1 to 30 MHz. 3x3x13 in.
Mf J-264. $109.95. Versatile UHFN HF/HF 1.5 KW Dry Dummy load. An MFJ
first. Gives you low SWR to 650 MHz, usable 10 750 MHz. You can run 100
watts IOf 10 minutes. 1500 watts lor 10 seconds. SWR is 1.1 :1 to 30 MHz,
below 1.3:1 to 650 MHz. 3x3x7 inches. 50·239 connector
MFJ-1286 Gray Line OX Advantage
"'.... ' 2 985 MfJ.nB6 Snag rare ox fOf only $29_95! The MFJ-1286
is a computerized OXing tool that predICtS OX
propagation. Even the casual OXer can wn rare
OX by know ing when conditions are best fOf OX.
The Gray line is the daylnight divider line where
the most amazing OX IIappens every day. Now
you'" know IlKtly when totake advantage of i:.
Gi,es detailed WOf1d map. Shows Gray Line IOf
any date/lime, UTC in 24 user chosen aTHs, time
~ zones and more. IBM compatible. Any graphics.
MFJ's SpeakerJMics .......
. J.U I
For Kenwood, Icom, Yaesu, Santec '240.
The besl of al cwwOflds· a deluxe MFJ Keyer using a CurtiS 8044ABM Chip in a
compact package that fits right on the Bencher iambic paddle l
This MFJ Keyer is small in size but big in teans es. Yoo get iambic keying. adluslable
weight and tone and Iront panel volume and speed controls (8·5e. WPM). oct.easn
memories. speaker, sidelone and push button selection 01automatic or semi-autamaticJ
lune modes. It's also totally RF proof and has ultra-reliable SOlid state outputs lila' key
both lube and solid state rigs. Use 9 V battery Of 110 VAC with MFJ·1305, $9.95.
The keyer mounts on , Bencher paddle to form a small (4 1/8 x 2 5/8 x 5 l h inches)
attractive combination that is a pleasure to look at and use.
America's lavorite paddle, the Bench. has adjustable gold-plated silver contacts. lucile
paddles, chrome plated brass, and a heavy steel base with non-skid feet.
$1 29ItS You can buy just the keyer assembly, MFJ.422BX, for only $79.95 to mount on your
Bencher paddle.
MFJ ... making quality affordable
12/24 Hour L Docks
_.._---
m
..._~
s 1 98S ; J.1088 ' 9 05-M-;'~ 107B
Huge 5/8 inch bold LCD digits let you
see the correct time from anywhere in
your Shack. Choose "om thet1ua! clock
that has separate UTCIIocaI lime display
Of the Single 24 hotw ham clock.
Mounled in a trosned alumim.m
kame. Easy to set. The world's most
popuIaf ham clockS IOf eccwate logs.
MFj.l08B 4 1 hxh2; MFJ-107B 2lf.xh2
Lighted Cross/Needle
MFJ.'15
SWR/Watlmeter ' 8 9"
MFJ Closs­
Needle SWR/
Wattmeter
shows you
SWR, lorwanl
and reuected power In 3 ranges (2012001
2000 watts forward/5/50/500 reflected).
Push bcuon range selection. 1.8-30 MHz.
Mechanic al zero adjust for movement.
SO·239 connectors. light requires 12
VDC or 11 0 VAC with MFJ- 1312, $9.95.
Deluxe Code Practice
N'W Oscillator
MFJ·557
' 2 4 8 5
MFJ·557 Deluxe Code rrsctce
OscillatOf has a Morse key and oscillator
unit mounted together on a heavy steel
base so it stays put on your table _AlSO
portable because it runs on a 9 ,oil
battery (not included) or an AC adaptBf
($9.95) that plugs into the side.
Earphone fatk for private pactce.
Tone and volume controls lor a wide
range of sound_ Speaker. The key has
adlustable contacts and can be hooked
to your transrTlltter. Sturdy_ 8'1u 2V.x3 J /.
in. One year unconditional guarantee
MFJ AC Voltage Monitor
H.-
'19 05 MFJ.e50
Prevent damage to rig.
computer or other gear. ~
Monitor AC line voltage for ..±
potentially damaging surgel
brown out conditions on
z-coicr expanded 95-1 35 volt scale.
;;..,~_~.-,
Plugs into any AC outlet. 2·1.
accuracy. 2' /.~2 lf.x1 1ff inches.
MFJ ENTERPRISES, INC.
P.O. Box 494. MiSSiSSippi State, MS 39762
(601) 323·5869: TELEX: 534590 MFJSTKV
Nu rest De,lefor DnIef1 only: 1100·647-1800
CIRClE 24 ON RE4Df:R SEIl'YlCl CAItO
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