Yaesu FT-470 User manual

' •
•
YAESU MUSEN CO., LTD.
C.P.O. BOX 1 500
TOKYO, JAPAN

CONTENTS
SPECIFICATIONS
• • • • • • • • • • • • • • • • • • • • • • • • • • • . . . .
... 2
LIST Of ACCESSO RIES & OPTIONS .•.•.....•••..••..••. 3
CONT RO LS & CONNECTO RS ..•.....••......•........ A
TOP PANEL 4
FRONT & SIDE PANELS 6
ACCESSORIES & OPTIONS .......................... B
Battery Packs and Cases
Battery Removal and Replacement
Battery Chargers
Speaker /Micropho nes
Antenna Considerations
8
9
10
12
12
OPERATION ..................................... 13
Preliminary Operating In formation
Sq uelch Setup
I mportant Keypad Information
Band Selection
VFO Frequency & Step Selection
Dual Band Reception
l 'ransmi tti ng
Repeater Offsets
Changing the Standard Repeater Offset
Me mory Storage
Memory Re cal 1& Copy
Hiding and Erasing Memories
Ca ll C hannel Memory
Alternating Band Memory Selection
Scanning
Memory Sk ip Scanning
Programmable Memory Scanning (PMS)
Priority Channel Monitoring
Tone Squelch/Pager Operation
Power Saver
APO (Automatic Power-Off)
DTMF Memories
System Reset
13
13
14
15
15
17
17
18
19
19
20
21
22
22
23
23
24
24
25
26
28
28
30
In Case of Problems . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . 31
Getting the Most from Your Batteries . . . . . . . . . . . . . . . . . . .. 32

FT-470 2m/70cm DUAL-BAND FM TRANSCEIVER
The FT-470 is an ultra compact FM hand-held providing up to five watts
of RF power on the 2m and 70cm amateur bands. A die-cast rear case
and
rubber gasket seals around controls and connectors assure years of
reliability, while multi-tasking microprocessor programming provides a
new level operating flexibility.
Unique features include s imultaneous reception on both bands, a CTCSS
(Continuous Tone Controlled Squelch System) with paging features, and
10-memory
DTMF Autodialler, all built-in as standard. Twenty multi-
function keys provide the ultimate in programmability of 21 freely
tunable memories and two vfos on each band. All memories store
repeater shifts or separate tx / rx frequencies, CTCSS tones and tone
encode/decode selections, with one instant-recall call channel memory
and two special purpose memories for limited subband tuning/scanning.
Busy channel band, selective memory and alternating band scanning are
provided along with priority channel monitoring; !MHz up/down stepping;
ARS (automatic repeater shift) when tuned to repeater subbands, plus
a top panel rotary dial for memory and frequency selection. The keypad
serves as a DTMF encoder or Autodialler selector during transmission.
The multi-tasking cpu allows scanning and priority monitoring on both
bands simultaneously.
The liquid crystal display shows 5- ~ frequency digits on both bands,
memory selection, CTCSS tone frequency while setting, paging status
when paged by a CTCSS tone, and includes a bargraph S/PO meter.
Yaesu's power saver system can be set by the operator for optimum
sampling/standby ratio, or can be turned off for packet. And our new
APO (Automatic Power Off) system shuts off the transceiver to avoid
dead batteries if you doze off or are called away unexpectedly.
Operation under difficult conditions is eased by illumination of the
display and translucent keypad and diatonically assigned function-related
keypad beeps.
Please
read this manual carefully to gain a· clear understanding of the
features of the FT-470.
· -· - I -

SP ECIFICATIONS
GENERAL
Fr e qu ency co ve rag e (MHz):
see Version Cha rt
Cha nn el steps:
5, I
O, 12 .5, 20& 25 kHz
S ta nd a rd repeater s hift:
see Version Cha rt
Emi ss ion typ e:
G3E
Supply vo ltag e:
s.s to 15.0 voe
C urr e nt co nsumption (single band):
Sta ndby (I sec. Save) 8mA;
Receive: l 50mA;
T
ran smi t (S W): 1300/1600 mA
(VHF/UHF) ;
Auto Pow er Off: 7 mA
Ant enna ( BNC jac k):
YHA -28 rubbe r fl ex ant enna
Case s
iz e (WHO):
55x 147x32mm w /fNB-/FBA-9
55x164x32mm w/ fNB- / FBA - 10
55x213x32mm w /fNB - 11
55x l 80x32mm
w/FNB- 1 2/-14
55x152x32mm w/ FN B -/ FBA - 17
Weig ht (approx):
420g
w/fN B-10 , 540g w/ FN B- 11
RF Power C hart
Ba tt e ry Type
~ RFOutput ( W )
""'V HF UHF
(D ry Ce ll Cases)
fBA-9 (6x AAA cells) 1.5 1.0
FBA- 1 0/ 17 (6 xA A cell s)
2.0
1. 5
(N i- Cd Packs)
FNB-9 (7 . 2V/200 m Ah)
2.0 1. 5
FNB- 10/ 17 (7. 2V/600mAh)
2.3 2.3
FNB - 11 (1 2V/600 mAh) 5.0 5.0
fl\JB-12 (1 2 V/500 mAh)
5.0 5.o·
fNB-14 (7 . 2V /1000m Ah)
2.3 2.3
- 2 -
RECEIVER
C ir c uit typ e:
Double-conversion supe rhet
Se nsitivity (f or l 2dB SI NAD):
be tt er than O. l 58uV (- 1OdBu)
Adj ace nt channel sele ctivity :
better than 60dB
Int e rm o dul a tion:
bette r than 65dB
A udio output:
0. 5W @8 ohms for 5°10 T HO (12V)
TRANS MIT TER
Power outpu t:
(see Rf Power Chart)
f re qu ency stability:
bette r than ±5 ppm ( -5 to +60°C)
Mo dul a tion system:
vari ab le r eac tan ce
Maximum de viation:
±5 kHz
FM Noise:
bette r than -4 0d8 @ 1 kHz
S puriou s emi ss ion s:
better than 60dB below ca rrier
Audio distortion (@ l kHz):
less than 5°10 , w /3 kHz devi ation
Mi c rophone type :
2-ki lohm co nden se r
Burst ton e:
1750 Hz (except versions A & H)
Vers
ion C hart
Version A B c H
VHF: 1 44-146 x x x
144- 1 48
x
UHF : 430-440 x x x
430 -45 0 x
U HF Std . Spl it 5 7.6 1.6 5

LIST OF ACCESSORIES & OPTIONS
MMB-32A
MH-12A2B
YHA-28
MH-18A2B
MH-19A2B
Mobile Ha . nger Bracket
Externa l Hand Speaker/Microphone
Rubber flex antenna
Comp act Speaker/Microphone
Earpiece/Mi c rophone
Chargers and VinyI Cases
(See RF Power Chart for list of Batt e ry P ac ks/Dry Cel l Cases)
9
10 11 12
14
17
9 10
l l 7V AC Comp act Cha rg ers
NC-18B
NC-27B
NC-28B
x
NC-34B
x "
220-234V AC Compact Chargers
NC-18C
x x
NC-27C
NC-28C
x x
NC-34C
NC-29 Desktop Quick Charger x x x x x
P A-6 Mobile DC Adapter/Chgr x x
Soft Viny1 Cases
CSC-35 x x x
CSC-36
x x
CSC-37 x
x:
CSC-38 x
17 .
Specifications subject to change without noti ce or o bligation. Availabil -
ity of accessortes may vary: some are supp li ed as standa rd per local
regulations and requirement s, others may be unavailable in so me regi ons.
Check with your Yaesu dealer for additions to the above li st.
- 3 -

CONTROLS & CONNECTORS
TOP PANEL
3
(1) EAR Jack
This 2-conductor mini phone jack provides audio output for an external
earphone or optional Speaker/Mic (listed on previous page). When a plug
is installed in this jack the front panel loudspeaker is disabled.
(2) MIC Jack
This 2-conductor micro-mini phone jack accepts microphone input from
an external Speaker/Mic or other external source. When a plug is instal-
led in this jack the front panel microphone is disabled.
(3) DIAL Rotary Selector
•
This 20-position ro tary switch tunes the operating (or CTCSS tone) fre-
quency or selects the memory channels, according to which function is
selected by the keys on the front panel. This knob duplicates some of the
functions of the up and down arrow keys for operating convenience.
- 4 -

(4) VOL - ~ BAL Controls
The inner VOLume control adjusts receiver volume, and turns the set
OFF when set fully counterclockwise (into the click stop). The outer
BALance control adjust the relative balance of receiver audio for the
VHF and UHF bands, when receiving on both.
(5) SQL Control
This control sets the threshold level at which received signals (or noise)
open the noise
squelch. For prolonged battery life and maximum squelch
sensitivity, set this control from counterclockwise just to the point where
noise is silenced (and the BUSY/TX indicator on the front panel is off)
when the channel is clear.
(6) Antenna Jack
This BNC jack accepts the supplied YHA-28 rubber flex antenna, or
any other antenna designed to provide 50-ohm impedance on BOTl-1 the
2m and 70cm bands.
- G -
.--·

FRONT & SIDE PANELS
( 1) Lamp Button
Press this button to illuminate the di splay and key p ad when ne cessa ry.
(2) Monitor (Burst) Button
In version A & H, this b utt on ope ns the squelch momentarily without
distu rbing the se tting of the SQL con tr ol. In othe r versio ns, this but to n
ac tiv ates the 1750 Hz Burst tone genera to r.
(3) PTT Button
Press and hold this (Push-to-Ta l k) bu tton to transmit on the Main Band .
The BUSY/TX in dicato r glows red while t ran sm itting (or orange when
the secondary band is busy). •
(4) Unlock Lever
Slide this m echanica l lever upward to r elease the battery for removal.
- 6 -

(5) BUSY/TX Indicator Lamp
This
LED indicator glo\VS green when the noise squelch is open during
reception, and red when trqosmitting (or orange if the seco ndary band is
busy).
(6)
LCD (Liquid Crystal Display)
The display shows the selec ted operating conditions as indicated in the
following diagram:
Pa er Active
Alt Ke ad
Memory Number
Tone Encoder/S uel ch Active
Repeater Shift
Memor Ski ~~
8
~~-,-1-
0
-w---:1'. ~s~a,4-- - + - AL'?"T :::.... b_T _ M _ F:1+-- ------- ~-
Memor Tune f'--'---/ ._ii ti tlfli.t Second Band Fre •
Selected VFO :~ '-/3Ct.00 ~ l'-:8.88
•
PTT Locked ...- ~lll~ f!~:O~il·~~l1l~• ll:: ' •=•= · a=•f•= · :.:•:::• :.:: s::A'.f'E :.:..: l l!\ ::; . ;4~'.:$; · . e;~ · !Hl ~ tm =*'~!:;Lo~w~B~a.!,!tt~er.:r L:!_Vg_oJ_!l t~a ~e
Keypad Locked Power Save r
Auto Power Off
S/PO Meter
(7) Keypad
These twenty keys select the various operat ing features of the trans-
ceiver during reception. The lower six teen also generate DTMF (Dual
Tone Multi frequency) tone pairs during transmission. One or two beeps
sound
whenever a key is pressed (if the beeper is active). The label on
the face
of each key indicates its primary function, while the label above
it (if present) indicates an alternate function, activated by pressing the
f /M key at the lower right first, and then that key within three seconds.
When
referring to an alter n ate key function in this manual, we usually
show the alternate key label followed by the primary label in parenthe-
ses () . A primary key function is referred to only by the label on the
k~y face, except the arrow keys, which are just called the "arrow keys".
Remember to always press the f /M key first (momentarily, unless
otherwise · indicated) when you want to use an a lt ernate key function.
All key functions are described in the "Operation" sect ion, and s um -
ma
ri zed on the FT-4 70 Operator' s Quick Referenc e Card.
- 7 -

ACCESSORIES & OPTIONS
Battery Packs and Cases
The following rechargeable Ni-Cd battery packs are recommended for
U; >e with the FT-4 70:
FNB-9
FNB-10
FNB-11
FNB-12
FNB-14
FNB-17
7.2V 200 mAh
7.2V 600 mAh
12V 600 mAh
12V 500 mAh
7 .2V 1000 mAh
7 .2V 600 mAh {compact)
The
following battery cases are also available for ope rating the FT-4 70
with non-rechargeable dry cell batteries {not supplied):
FBA-9 Battery Case for 6 'AAA' {UM-4) dry cells
FBA-10 Battery Case for 6 'AA' {UM-3) dry cells
FBA-17 Compact Battery Case for 6 'AA' {UM-3) dry cells
In some countries, one or more of the above may be supplied with the
transceiver. If not, contact your Yaesu dealer to purchase the desired
battery pack or case. We do not recommend use of any other type of
battery with the FT-4 70: using another type may affect your warranty.
The FN . B-9 through FNB-12, FNB-14 and FNB-17 may be recharged
either while attached to the transc eive r or separately, using the battery
chargers described on the following pages. Each Ni-Cd pack should be
fully charged before it is used wi th the transceiver for the first time.
Note that each of these packs requires a different wall charger:
N1 C -27B/C for the FNB-9, NC-28B / C for the FNB-10/-17, NC-18B/C for
FNB-11 or FNB-12, and NC-34B /C for FNB-14. Make certain that you
u se the correct c harger for each pack. The NC-29 Desktop Quic.k
Charger may be used with all of these Ni".'"Cd packs.
- 8 -

RF power o utput from the transmitter will differ in some cases accor-
ding to which type of battery is used, as shown in the Rf Power Cha rt
.
in the Specifications sectio n.
Battery Removal and Replacement
1. Make s ur e that the VOL co ntr ol is set into the Off cli ck-stop, and
remove the
pr otective soft or hard case, if used.
2. Grasp the upp er portion of the transceiver with yo ur left hand, so
that your palm is ove r the speake r and your l eft thumb is on the
UN LOCK button.
3. Move the UNLOCK button in the direct i on in dicated by the sm all
ar rowh ead , while using yo ur right hand to sl ide the battery case
toward the side with the UNLOCK button. The battery case should
slide smoothly o
ut of its track.
4. To open the f BA-9, fBA-10 or f BA-17 battery case , place both of
your thumbs on the mounting tracks on top of the case and gently pry
the tracks apart . Install six batt eri es , paying attent ion to the pola rit y
indicated inside the case . Always r eplace all six cel ls.
Do n
ot at tempt ~open any Q.f the rechargeable Ni-Cd packs.
5. To replace the battery case or Ni-Cd pack, repeat steps 2 and 3
above, simply sliding
the battery case in the othe r direction after
aligning the sho rt er side of the battery case with the track below the
UN LOCK butt on.
DO NOT PUT NI-CD CELLS IN AN FBA BATTERY CASES, AS
THESE DO NOT INCLUDE THE PRGTECTIVE DEVICES
NEC~SS . Y FOR SA E QPIERATION ~ NI-CD CELLS ~ SE
AN FNB ~r-CD PACK IF "' ow NEED A RE'. CiH ARGEABt.E P~CK.
- 9 -

Battery Chargers
It is not necessary to remove the battery pack from the transceiver when
charging, but tran sce iver operation may be impaired (by noise) while
charging the battery. Therefore we recommend having an extra battery
pack on hand so that the transceiver can be used while the spare pack
is being charged.
Do not attempt to recharge dry ce ll batteries used in the f8A-9,
F8A-10 or F8A-17.
NC-18B/C
The NC-188 ( 1l7V AC) and NC- I BC (220-234V AC) are compact
chargers for recharging the FN8-11 and FNB-12 N i-Cd battery pack s
from the AC line. A comp letely discharged pack requires approximately
15 hours to recharg e with the NC-188/C . Do not attempt to charge any
of the other Ni-Cd packs with the NC-188/C, as the charging voltage
is too high to safely charge those packs.
NC-278/C
The NC-278 (117V AC) and NC-27C (220-234V AC) are compact
chargers for recharging the FN8-9 Ni-Cd battery pack from the AC line.
A completely discharged pack requires approximate ly 15 hours to re-
charge with the NC-278/C. Do not attempt to charge any of the other
Ni-Cd packs with the NC-278/C, as the charging voltage is not high
enough.
NC-288/C
The NC -288 (l 17V AC) and NC -28C (220-234V AC) are compact
chargers for recharging the FNB-10 and FNB-17 Ni-Cd battery packs
from the AC line. A completely discharged pack requires approxim . :itely
15 hours to recharg e with the NC-288/C. Do not attempt to charge an.y
of the other Ni ·!.Cd packs with the NC-288/C, as the charging voltage
is not cor rect for those packs.
.. 1 () -· ..

NC-348/C
The N C-348 ( 117V AC) and NC-34C (220-234V AC) a re compact
chargers for rech arg ing the FN8-1 4 Ni-Cd battery pack from the AC
lin e. A completely discharged pack requires approxim a tely 15 hours to
r ec ha rge with the NC-348/C. Do not at tempt to charg e a ny of the other
N i- Cd packs with the NC-348/C, as the ch argin g voltage and current
are not correct f or those packs.
NC-29 5 .. hour Quick Charger
Thi ~ NC-29 is a univ ersa l battery ch arger with qui ck a nd trickle char-
ging modes for all of the FN8 Ni-Cd packs listed on page 8. The quick
mode is automatically se lected initially, to bring the battery pack up to
fu ll cha rg e as fast as sa f ely possible us in g an in tern al timer . Three LED
indicators show elapsed charging tim e afte r 1, 3 and 5 ho ur s. The char-
ger then automati cal ly r eve rts to the trickle mode (green L ED indicator),
to prevent self-di scha rge. The qui ck m ode recharg es a co mpletely di s-
charged battery in abo ut 5 hours, depending on temp erat ure.
CAUTION: When using the NC-29 , do not remove and then replace a
battery from the ch arge r while it is charging , as this will reset the timer
and
may then overcharge the batt ery .
P A-6 Mo bi le DC-DC Adapter/Charger for FN B-9, FN 8-10, FN B-14 and
FN B-17
The PA-6 is a DC-DC adapter for use when operating the t ransc eive r
mobile, and for charg ing the F NB-9, FNB-10, FNB-14 and FNB - 17
Ni-Cd battery pa cks . T he PA-6 r echa rges a complet e ly discl1arged
FNB-9 in about 5 hours, an FNB-10 / -17 in about 15 hours, or trickl e
charges an FN B-14 (to full charge in abo ut 35 hours). Care must be used
to avo id ove rchar g in g the batteries, as the P A-6 does not include a
timer. The PA-6 cannot be used for cha r ging the F NB -11 or FN B-12, as
the cha
rging voltage is too low.
Use with 12-volt negative ground electrical system s only.
·-·- l l .. .

Speaker/Microphones
The MH-l 2A2B and MH-:- l 8A2B Speaker/Mies and MH-19A2B Earpiece-
/Mic can be used to increase operating convenience and extend com-
munications range and signal strength. Each is equipped with a dual plug
connector which mates with the EAR and MIC jacks on the top panel of
the transceiver, disabling the internal speaker and microphone. The cable
allows the transceiver to be left clipped to your belt, or to be held
overhead above obstructions for improved performance, if required. For
mobile operation with the MMB-32A Mobile Hanger, the transceiver can
be left in the Hanger during operation.
A Speaker/Mic can be held close to your ear during reception; or an
external earphone can be connected to the transceiver via the Speak-
er/Mic plug, attenuating audio from the speaker in the Speaker/Mic. To
transmit just hold the Speaker/Mic close to your mouth and close the
PT1' switch on the microphone (or on the cord of the MH-19A2B).
Antenna Considerations
While the supplied YHA-28 rubber flex antenna is convenient for
short-range operation, the standard BNC connector allows use of higher
gain antennas for extended range base or mobile operation. However,
any antenna used with the FT-470 must have an impedance close to 50
ohms on the operating frequency(ies). Therefore, for dual band operation,
you have two options:
(a) Use an antenna
specifically designed for 2m/70cm operation.
(b) Use two single band antennas, connected through an antenna
duplexer {such as the Yaesu model AD-2) to the transceiver ..
Also, if the antenna is connected with a feedline, use only good quality
50-ohm coaxial cable to avoid losses. To obtain a proper fit with some
BNC plugs, you may need to remove the rubber gasket around the
antenna jack on the transceiver.
·· ···- 12 ·- -

OPERATION
This chapter describes the various transceiver functions in detail. After
studying these descriptions, keep the fT-4 70 Operator's Quick Refer-
ence Card handy in case you need to refresh your memory.
Preliminary Operating Infor111ation
Before operating the transceiver for the first time, charge the battery
pack completely (if using Ni-Cd batteries) as described on pages 8
through 11. If using a dry cell battery case, install the batteries as des-
cribed on page 9.
Connect the YHA-28 rubber flex antenna to the antenna jack on the top
panel. Never operate the transceiver without an antenna connected.
For now, do not connect a Speaker/Mic (until you are familiar with basic
operation).
Before proceeding, please read the Controls and Connectors chapter if
you have not already, to familiarize yourself with the functions of the
controls. Note especially item (7) on page 7, which describes the
terminology used in this chapter when referring to the keys.
Except for special cases mentioned later, the lower 16 keys serve as a
DTMF (Dual Tone Multi frequency) tone generator during transmission.
If you have trouble getting the transceiver to work as described, see "In
Case of Problems" on page 31.
Squelch Setup
Set the SQL control fully counterclockwise, rotate the VOL control out
of the click-stop and adjust for a comfortable volume on the noise or
received signal: The BUSY /TX indicator LED should glow green. If a
signal is present, rotate the DIAL selector on the top panel to a channel
where only noise is heard.

Adjust the SQL control just to the point where the noise is silenced and
the
LED is extinguished. If the SQL control is set further clockwise,
sensitivity to weak signals will be reduced. Now, whenever a signal
reaches the receiver that is strong enough to open the squelch, the
indicator will glow green.
Note that while receiving, one or more bargraph segments may appear
'
along the bottom of the display, indicating signal strength on the
receiving frequency. This indication is not affected by the squelch
setting, so even squelched signals may have some indication. If you
notice more than one or two bargraph segments appearing while the
squelch is still closed, try reducing the squelch control setting (if you
want to hear weak signals).
The Monitor switch on the A & H versions (just above the PTT switch)
allows checking for channel activity beneath the squelch level and to
adjust the volume without having to adjust the squelch: just press the
Monitor switch and the squelch will open. Above the Monitor switch (the
Burst switch on European versions) is the Lamp switch. Press it to light
the display and keypad.
Important Keypad Infor111ation
If the keypad beeper is enabled, each key on the keypad produces its
own beep (or combination) when the key action is accepted. If you don't
hear a beep when a key is pressed, either the volume is set too low, or
the keystroke was not accepted. During transmission, key tones of the
lower 16 keys are the DTMF tone pairs (which are also transmitted).
Pressing the F/M key (at the lower right corner) momentarily activates
the alternate keypad functions, labelled on the panel just above each
key. If no key is pressed within three seconds of pressing the F /M key,
the keys return to their standard functions, labelled on each keyface.
Throughout this manual, when we say ''press the f/M key" we mean
press
it just momentarily (less than ~second), unless specified otherwise.
The keypad can be locked to prevent inadvertent changes in frequency
and functions, by pressing F/M followed by the LOCK(6) key. When the
·--·· l '1 . ., ..

keypad is locked a small "L'' in reversed letters is di sp layed in the lower
left corner, and the keypad tones (while re ceiving) are then as follows:
.
. -
. . . .. ·- ..··- ·-
. 1UNE T SET LOW 1119-i.7 ~VI: . APO LOCK IV1HT STEP 111 : ~ . 1' P fT LOCK RPTSET Sl(P BELL PAI
' ~ --- .1 !l 11 z. Jl fCJ·· 11 [r rj I!_4 11[L 'li _ JJtc Cl .d(c " · 1][1 1 11 ~~ a ir~ _ !J:,i ) [I eef iJ 11 mJ1 lj . .. ·a )I [1vto ~ [ iif M11
Feel free to use the keypad as a piano wh en the keypad is locked (who
s aid we would couldn't fit a piano in a hand-held?). The only key
combina tion that will affect tran sc eiver op eration is f / M followed by
LOCK(6) within three sec onds, which unlocks the locked keypad.
When unlocked, the tones produc ed by th e arrow keys are changed to
audibly indicat e the dir ect ion of the arrow, and some other keys also
sound twice in ce rtain cond ition s.
You can expect keypad operation to become eas ier as you become
accustomed
to the tone(s) associated with each key and func tion. If you
want to disable the keypad beeper, press f / M and th en the BEEP(8) k ey .
Repeat these keystrokes to turn it back on (we recommend you ke ep it
on at least whil e learning the key function s) .
The PTT switch can al so be locked (ind e pendently of the keypad) to
prevent inadvertent transmission, by pre ss ing F /M followed by the PTT
LOCK(9) key. When the PTT is lo ck ed a s mall "Ptt" in rever se letters is
displayed in the lower le ft corner. Press the same keys again to unl oc k.
Band Selection
Press the BAND key on the top row to s witch the primary operating
band between 2m and 70cm bands.
VFO Frequency & Step Selection
Make sure the keypad is unlock ed, and pr ess the VFO butt o n, if neces-
s ary, to se lect the VFO mode (see box next page). l 'he FT-470 has two
vfos, la belled A and B, e ither of which ca n be used for all of the
. .. 1r:) ..... ..
. ..

procedures described in this manual. You can change vfos with the VFO
button at any time, allowing one to serve as an extra memory.
You have several ways to tune the FT-4 70: in selectable steps or 1 MHz
steps with the arrow keys or DIAL knob, and direct keypad entry.
Use the DIAL knob to tune the displayed VFO frequency at the current
channel step rate. You can ' also press the arrow keys momentarily to do
this, but if you press an arrow key for more than !-second scanning will
start. This is described later, so for now, just press an arrow key again
to stop (if you have to).
To change the MHz range of the VFO, you can press the F/M key
followed by an arrow key (or turn the DIAL knob). Note the beeps when
using the arrow keys: ( . ~ =: ) when moving up, and ( ~) when moving
down. When done press F/M again, or just wait three seconds.
You can also enter a frequency directly just by keying in the 1 MHz
and the kHz digits. If you are using 5 or 10 kHz steps enter four digits.
Otherwise just three digits will do. Partial entries can be cancelled with
the VFO key.
Tuning steps are factory preset according to version. To change to
another step size press F/M and then STEP(?) and use the DIAL knob or
arrow keys to select 5, 10, 12.5, 20 or 25 kHz steps (displayed at the
right. the "5" or "P" in the shaded box at the upper left is the scan mode
indicator, described later). Once the desired step is displayed, press
STEP(7) by itself to return to the VFO frequency display.
- 16 -

l
Dual Band Reception
The SUB key along the top row allows you to control the secondary
band. During the above band and frequency selection procedures, you
may have seen the secondary band frequency displayed, or you may have
seen only "---" (in the right half of the display). By pressing the SUB
key you can choose to either display (and receive on) the secondary
band, or to hide it and operate the FT-4 70 like a single band transceiver.
When the secondary band is displayed the receiver combines the
received audio from both displayed frequencies, so you can listen for a
call on one band while monitoring or working stations on the other. Use
the BALance control to adjust the relative audio levels of the two bands,
if necessary, after the VO Lume control has been set.
Ct1anges to the frequency or other settings can only be made on the
primary band (displayed at the left). So if you want to change settings
of the secondary band you must temporarily make it the primary band
by pressing the BAND key. Then make the desired changes, and press
BAND again to return it to secondary status. Note: tone squelch/pager
features are only effective on the primary band, regardless of settings.
Transmitting
Press f /M and then LOW(3) to toggle between high and low power
output. The pitch of the keypad beeper will indicate whether high or
low power is being selected, and "LOW" is displayed above the 1 MHz
digit of the primary frequency when low power is selected (we recom-
mend using low power whenever possible to minimize possible inter-
ference to other stations and prolong battery life).
When you wish to transmit, wait until the channel is clear (BUSY/TX
lamp off), and squeeze the PTT switch. During transmission the BUSY-
/TX lamp glows red or orange (if the secondary channel is busy), and
relative power output is indicated graphically along the bottom of the
display. Release the PTT switch to receive.
- 17 --

If using a European version, press the BURST switch (above the PTT
switch) to transmit a 1750 Hz tone to access repeaters that require it.
Repeater Offsets
The ARS (Automatic Repeater Shi ft) feature provides repeater offset of
the transmit frequency whenever you are tuned to a standard repeater
subband (see diagram below). When enabled, a small "-"or"+" displayed
above the lOO's of MHz digit of the secondary frequency indicates that
repeater shift is active, and closing the push-to-talk switch changes the
display to the (offset) transmit frequency.
/,) 2
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Band : Version A2
144.00 . 145.50
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145.JO
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1
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144.00
I s
146.00
145.80
1-1 s I
146.40
1s I
146.60
145.60 146. 00(Mlfz)
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2
430. 00
s
147.00
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147.40
447. 00
-I
148. 00(Mflz)
.S : Simplex
- : Minus Shift
l- : Plus Shift
·150 .00 (MHz)
The ARS function is disabled at the factory. It is toggled on and off by
pressing f/M, RPT, f/M and RPT (that is, each key, twice alternately).
Pressing f /M and RPT the first time displays the repeater offset
(adjustable) at the right, and if ARS is now enabled, an "A" in the
shaded box at the upper left. With this display, pressing only the f /M
•
key toggles ARS between enabled and disabled states, and RPT returns
the display to the operating frequency. So after pressing F/M and RPT
the first time, if you want to leave ARS as it is, just press RPT.
Otherwise, press f/M to change it and press RPT once more when done.
When the ARS feature is inactive (either disabled, or when tuned outside
of the standard repeater subbands) the RPT key manually activates
transmitter offset from the displayed receiving frequency for plus or
minus shift. Just press RPT: once for minus shift, or twice for plus shift
("-" or "+
11
displayed above the 100 MHz secondary frequency digit).
When you press the PTT switch to transmit (or the REV key along the
top row to reverse transmit and receive frequencies), the display will
. ...... 18 ----