BK Technologies GPH21 Portable Radio User Manual Part 3

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Document ID	20615
Application ID	ugTU04o1SB7jtM9Hl0t9/g==
Document Description	Users Manual Part 3
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	175.47kB (2193358 bits)
Date Submitted	1999-01-22 00:00:00
Date Available	1999-01-27 00:00:00
Creation Date	2001-07-09 09:05:10
Producing Software	Acrobat Distiller 4.0 for Windows
Document Lastmod	2001-07-09 09:05:11
Document Title	Users Manual Part 3

SECTION III
OPERATION
3.1 INTRODUCTION
This section contains irlornmion cumming in: operation madam fur m- EPH Sarias min.
Imonnatiun on pmoranmlg and Installation Is contained in Section 2 oi this manuaL
WARNING ' WARNING
DO NOT OPERATE THE RADIO IN AN
00 NOT OPERATE THE EXFLOSIVE ATMOSPHERE
TRANSMITTER IN CLOSE PROXIMITV ‘ (PETROLEUM FUELS. SOLVENTS.
TO BLASTING CAPS. DUST. ETC.) UNLESS IT IS AN
INTRINSICALLY SAFE MODEL
DESIGNED FOR SUCH USE.
3.1.1 DISPLAY OP‘I‘INS
EPH Series radios can In equipped with a standard T-Segmam Displ . an Alphammorlc Dlspla . or
no display al al. Radios with "bar a 7~sogmam Display or an iyphanumulc Disphy an yalso
what! with l Rayburn.
An Ammnuman‘c Display snows chanflal and scanning Hormatlon In a diffiunl way from a 7~
Sagmant Display. Tho annumiabrs aims; in top 0! In. ism; an arr: Mommy. Inn convey
Ina tam. meaning. An Npmmmoflc Dlspiay can also am a. hale a! just nunters.
Radio: with Marian-mum Dig‘lzy an be program!!!“ in optralo on. or more groups in 7-Segmam
mode (sac seam 2.3.6.5). channel and sunning lmmmnlon will appear In use same way as a
7-sagmcm Duplay. but In. anmnclalors an still dllerurl.
Display annunclaturs indcata ma lolawlno kiormallon:
7- Alpha-
M mm I “I0"
PR PR Pnomy Channel
FROG PRG Programming Mode (Includes FR)
SCAN SCN Scan List Channel (On Alphanumonc Display. Hashing SCN
arrow-s Scan-nu in prowess. and RX SCN mamas
Flee-Wing on a Scanned animal.)
TX TX Transmit
RX ax Rmirw programming rlroda orw
ID 10 3:3”: Number ldariificalion (ANI) ~ programln‘ng moon
CG CG u“: Coda Guam- programming mam only
GHP erp Label (Alphammaflc Dlaplay only)
‘PROGSGANTXHXIDCG PFIG TXFIXSCNIDGG
B E El. El E 5 El fflfigflfifififi
named DI9LAV AIJ’NA manic DHFMV
FIGURE 3-1 LIQUID CRYSTAL DISPLAYS
194mm Page J-I
OPERATION
3.2
Overall
WM
hum
3.2.1
A.
O PEHATION
plasmas Ila basically 1h. um:
EFH SERIES VHF RADIO
for all mm display typos (”I-Segmsm‘ Alpnammenc.
ay), m sumo Mus dimmncss. For sample. a radio willl no display or klyboard
Rays no pun The mil
annealing on in. lemm Installed
BASIC OPERATION
Hm“.
B’P DI
um mv
B’P Bl
Ann-um-
lEhlE
"mm uwv
IFIPE H T
“mm-cm mv
Transmit
LUbH4
rm alluv
0594
Plgl 3-2
dl lay on m- aple may appear mm from ma illustrumm.
prommmoa m (m mac.
Turn 1 on mlfll the Volum' knob
elm paths FFmt .‘I'heyellowLEDMIl
luau lbs Display wll show the eumm group
numb". man In. alum-I mmnef (7sogmonl
dismay) cl chanml label (what-1mm dsplay). A
beecwilsumdjdnaflnglmmbilupembnu.
an alarm! label ran-um inswcflons an
muz-lswz-1o.pm
Home th- Chwel Selsmr knob 10 send me
urine chum-l. ' Rot-l. th- Squolch knob
us umll a ruslung nun Is mam, Set the
volumo lo a curl-normal: level. men rotate the
Swolch kmh awards (000mm) until
fill m0. mpl. TN! I: ulhd m- lhnlhold squolcn
Fumr male" mum-mum. "omens ma
mulch mum. slowing o wanna: slums lo
musmwm are. Full rotation
mmemluclmho past ma mm places in. receive!
in Coda Guam Wu man A messsgu will b.
mm only mn propor ends GM I: wanna.
Pru! ind hold me fido Nth To Tilt (PTT) with.
The Dlsphy m1 show me TX anrvunclaxnr and me
rld Tmnsml manor wil glow when the lnnimimr
I; on. Tak in I norm-l vain. ml- Ihl microphone
on. lo M Inchis from your hm Make nach
"autumn as and IS pusibln. Releasa in P1“?
when lo and lummlulon.
ll mo Transmit Indicator does not glow when you
manna P1'r smn the my pack may needle
mod: 1 in. ma Disphy will show Lou! and
m- yum Lam 8mm macaw wll "an, If 1!-
Transni Mr does nul also: and a tent sounds.
an on n 105!»an dunnol. or 1h: chml ls
ly (l Busy Chum-l anhom l- int-m). mung
gen-Irnlsmmnmwmmm
m.
Ithsll atywvtmmoemmupnut
firm orphan! m . mt Trnnnnllur will
momma-man alomwlswnu. ll cu
will lo m ml! "Mala". mlano‘lm T7
with. than was ll nun arm unnllnuo M-
EPH SERIES VHF HAM OPERATION
12.2
CODE GUARD OPERATION
God. GuardTM allows on. radio or roup ol radlns h: be solocfively cam within a system. It ths
radio has bun programmed wnh Guard. use rm blowing non-vs and lterlsl‘fll imnl.
3.2.3
3.2.4
Hm”.
Tum povm on by misting th- Volum km W tho OFF datum. Rotate tho
Sqnich knob dam until a lush! ml» is heard. 5 th- vellum. to a comfortable Iml,
(hon mm in. Squolch imnb mun sly com-mm. M the dot-m tor Coda Guard
upon-anon. A mum will In hoard only who" lho proper Cod- Guard is name.
Transmi
mu mmltl on Code Guard munch, manner tho channel by tum'ng tho Sqmlch
kmb charm“. tho damn, ll m. ammo! is not busy. pron and hold the P1'I' much.
Tho ud Transmn Indie-tor wi um win-n rm (murmur I: on. Holoasc ttu F'1'l‘ with to
and “mansion. Rout tho Squelch knob to the Code Guard million to racelva only “1!
transmission: m in props! Cod- Guavd. During extended lramlriunm tm nuclei Call
bl Iott open urlll rm audience has lMlfl.
I'll/LO TRANSOM? POWER
Placing tho HVLO have swim: in in HI position meals; in! trammitar rowan Tin LO
position retirees pond! to the programmed low power satfing. thereby rem: ng cumin drain
and hcmaslhg Mary lile,
BUILT N FEQTUHES
BENDIXIKING EPH sari“ ms on hand on I micropmcnsor com um um; om
101m!!! Ind comm! Mimics to be will lmo the Min. 0mm can help dsfim m.
has: opemional mums to! I system and program mm lm the radio.
Additional trlmmil and rot-m lawsuits can bu add-d. To mnior olhor local mono
warns m2: lil anywharo in tho band. a hemency w'nh or warrant Code Guard can be
to radio.
mudowmnomlppoomhowno out fimm. Thisisuseozollma dreamt-morsels and
to guard wallet afield-"tally locking on the nnsmam and lying on lhe radio sysmn. Tho
mutton at tho llrno out "mare-n be sot from 0 to 225 ascends. in 15400900 mam-ms.
A DTMFIANI mug imn is also mlllbio on all Mmud/dlsplly models. It muted. a
“unan of DTMF ton-s similar to tho Mu unit by a mndaro pushbunon tel non- mil
botunsmiittd onchflmthutmmPTTs-mchsxmsed. irDTMFaMAN whom
unabud. 1h! ANI tan! “gum“ wlll ha "summed only altar (h. [ENT'] key is pmsled WM.
the tramrnlt Pfiswliuh a mm, A slamhe oi the AMI "um! transit-mod wll also be
hard zmh tho 190“. mm an pmmm or charm the AN! hurrtorlo be uni.
A SCAN dolly “E Includut to alow u moons: in a transmission to be received botors the
mum-r mm on to lurch lot now actMly. It the scum-r i mlm adore message
npliu on hard. tm w dolly time can t:- mam (0-75 seconds)
Radios ippod with tho war-1mm niupky can no programme with warm channel
labals 3mm lab-ls. Sn “Group Ltd? on we 2-10. and annual label Instructions on
me 2-13. mo 7.
Alphanumn’: Displa madsmalsobe rmdiorLCD Mm Manama“: c
is mom or a My it pusud. s“ ‘Channs 0 Gmup Thm Funalons‘ on page 2-6. G
Then are thin dlflorant mud“ avallabla. “use my dlscussod in tho section Pr'nrlty
Operlllon on out M. ll!!! (an huh menu in. but prioriy mod! for n symm.
Codi Gin/d It I tad-mark M King Radio Corp
EMS/MG Pm 34
OPERATION EPH SERIES VHF RADIO
3.2,5 OPERATIONAL FEATURES AVAILABLE
A.
ScanOpemiMWIhcamotSqnbh
When ‘n ma Scan mod. with am" squelm set (no! Coda Guard], me radio rue-Mr
samples enamols In a prudotcrrnlned Ila! (scan In) looking but whiny I! an arm. ammo! is
round. rho sunr'mn salon u and IM mum on m chum-l us hoard. one. the
mango stops. rm rue-hm wll want for a aspen;- Inlm mm! resume. This wa' ‘
pmd.andm"scmdlhyfimt.'unbepnsulrom05 smTIrsseondan.
new Incnrnem TM scan llstunalso pant orname mam-unrwlllbo ab!»
00 and or daun- channel: 1mm tho scan m, m cram-I m which an Chanml Scissor
knob Is so! it My! Indum In ml wan llfl. wnnhorit is proof-"mod m scan or not.
scan \ \ ’ I‘ To“ gimmnag. agate 11‘s: SPCANm ll switch
n I II. l i no
I Ch 3 " mmrrnnffmw cowawn). Soc-Pfiru';
“mun" Optrmn'onp-gfl- .
car Sanopcrcbnmarwwril-momaoismr
r 'r‘ ‘ wan-rm" ' . SCAN e um ‘ indicated rwn
I. H RE I. 3 flashing by: Scourge“ Iago: a nashirsysw
va
ammonia” hwrnorlcd Ily).
1 saw When a sign-I la emu. sunning snaps and run
Eh 3 IE! pmluimmmdhncmr Truman-ml
' rs shown on ma non: side of m- uhphy (7-Sogmom
mun-v u-w way) or In plans or me nnsmn ml
(Alpmnumeri: by). Tho radio racalvor my: on
t ‘“ '°‘ §§m°“a"?.‘,r‘fi. m““¢‘.w'°'€n';“ "“‘ """"“
I1 ' l.
1 L H B E L 18 °
Mann
Mywwlwwtmmnonmlastaetrvum
crunnst rum lhl Chum-I Sela-nor knob to man
cr-nna. Turn OFF mo SCAN taggi- mun Ior
mnml “norm/m ownbn.
mmurePTl’ispr-sedwhflammescmmm‘
rm radio rrammn an thl charm-l "loan the
Chum! Sui-cm knoh‘ Upon mass or! P ,
radio nether wiI hold on Inn draml. I1 m nply
sewn fining y. ‘mn 60W flmu. RM radio
10mm“ mun-nu.
Scanning Cod- Gulrd Chamois
To nan tor chmls wungerzgmnd Cod- Guard. mm ll'l. Squolcn knob couplamy
counterclockwise. pm me n. wmn a signal I: weaned. 51:
Guard luv m- drama! 1 mend. I ma prvplr Cad. Guard 1: pm. the radio teeth/as
(Muhamlurflcadn Gun-neon“. ltrupvovanodoC-mdnmtpmemmm
roam-r w! marm- mmlnq mm
Fig.“ 1mm
EPH SER'ES VHF RADD
Chan“ Ina Scan Us
sun
15h lE
MEI-I1 Wt
mu
l.
LHBE
FannancmSc-nual
"n \I
! 7~183H5
Primy Oporallnn
Ch 3 ‘-"-'
Elma? 3
may
OPERATION
Tharadowlbo programme wltha rmanmo:
chnnoeahh scan Est. ll ma wwllsl can he
xmmlmmmmmmamormv
To avoid common. tum OFF ma FRI am SCAN
lmla mm on mg mp M the radio.
Turn the Charm-l smr knob nu ma manna lo no
mud or dam
To ENTER a channel i‘lto he star! list pass In:
{am key on me Inward. A anon beep will he
. TN disulay wi shall (no awncialur
sem- (7-Sagmanl ulsplav) or 'scn-
(whammrlc dlaplay).
To CLEAR a charm! hum tho sun list. press rm
(CLH‘LM. A than Nip will be heard. and the
SC " Of 'SCN' mmnclanr In 1”. ”play will
Glamour.
Tu mm tho scan list pmnanam or char-gums.
ram me lunrxlon lo either mauled or fisahled.
a 'Scan us: Leann“ on nag. 26.
Prlorlty operation comma M rec-Mlle on any
chml whfla all! mentoring (or a mango on tho
‘ ‘ chann'I. Priority an alas b- used In
comb mien wlth Sun mum". When scanning a
priority arm-anal that usas Coda Guard. m- mlo will
lock on no lhll channnl. But a mum. veil In hoard
0 when ms curred code In: bun quafl. Tho
will resume scannlrlg alter ma srgml has
ended and the scan deny time has explrld.
Whan m. PHI (priority) m mm ls rum-e ON.
ma channal duly-sated "pgmy‘ is 53:19le al a
pmal mm (35 to 3.75 am] regardless ol
achry on any ohm channel. Th- dlrplay "an“
mm »"-“°".°"":;‘ mum. fn'. 237"
mm: ay r a s
sawing ma pray Jamal. K a is racuived
on ma prlnmy channel. ma radio vac r will lock on
to that alanml lor m- mmim of lht transmission
wmnrnqsqm glomnlsorumrmm
mlamuOF,mm-Iacamlngwloewrm
mule mmwllnmboamdwbolnmn
andprln lo mar-coltlha wllllulcfionas
lrrbaslcopara rm
flag. as
OPERATION EPH SERIES VHF RAD!)
Prinfly Mod”
Priority Mod. A .. Tho prinrlyglannll is nod to tho Camel Salem: knob. Whm the
sow ls so! on dunno! 5. ml: 3 lb. My charm-I. II the scholar ls switched lo char-ml
8. ml: been“: m: M channel. You wlll "Insmfl on lm lrequerlcy chosen by (M
cunnul Selmr knob.
Priority Mod- 5 - m may char-uni in. am. You wll lunsrnlt on the "tenancy chum
by an. Chlnnnl Salaam .
Prlomy Mode l: - Th- pflo chnnnol ls find, wmn lrlo Pfil mun is ON. you will
transmit on me priority ohm mud-u d In. Chum-l swam mlnq.
Which Pvlnmy Modelllmlalld
Fowrhesemummmimwnlchpfiomynm'unlhlmdomlpvndwflnl
moo-m am filmy.
1. Sq! tho ml and SCAN lowl- nlnonos lo OFF.
2. Hum lt- Channel Selector mob. shopping at each
mm b vbw lha LCD Display.
Fl 3. I! A 1 ‘FR' syml (ll In. unpor I!!! M an LCD
c h a ‘ anlay) do“ no! aw“! for any ml. you have
‘ l Monty Mouth
VMVMMV
4 If "PR“ is dusty“. ram: lm Charms! Salaam
m ‘ moo In a dlnom chlml. man mm m. FRI mom.
LRBEL 3 °”
W want
If in. LCD chaml sags on (HE ”hail! channel
you run prlorlty Mod.
ll mo LCD charm-I mung-s lo 1n- priorlly chinnol.
you have my Mod. c,
Pmmy Made A bum
,___——— .
rm ’ In ml; modm mo prl channel ls lled no tho
E h 3 'El Channol swun- moo, an m. scm mo Pm
' l (priorty) Tom Smith“ are ON. sunning nil
rwwv ecu: um an actlvo won channel ls former The
radio «a mom me mm channel vmlll cortiming
"‘ '“ ”’ awammmmmam Tn"
c , .
LHBEL {a Pmflwmdworw'zyllom. Thoradlomivuwl’llgo
mmv
lo Ir- prlnny nhamul and hold luv the duration or
m. Motion. Tho Moray chum-l will on moan
lhl cup)!“ (on tho fight hand sic. of 7 Seaman!
m | "Minoan; harnesses; on me latri’o‘nrlz
ovum arm a w mm
C h 3 a priorly dumL ”Mouosmmepmrly
unu-r-vu' alum-1.0! radio mum to sum operation.
M R a
LRBEL 3
MW
Fig. 3-6 am
EFH SERES VHF RADIO
Pmmy Mod- 8 Denlls
Pmmy Mod. 0 Dela]:
OPERATION
Thismodofixuomohamolhmmasm
9 annual. WI"! the SCAN such OFF
and Hllwlortynoggbtvmch .lherodocan
new. on lho "momma chanml wnllo still
sompino In. pdorixy ohannol. ll the prlumy «flannel
boeomos acfivo. In. Pnony mum: you on and
mo Mb hold: on lilo Madly chunml In: no
wmlon 0! lm lummisslon. ll you with to mply to 5
mm on m prlo channel mus! roul- mo
cmnnol Salado: k to me ammuL man
mm".
WIlh oolh SCAN and FRI loop. Moms ON. the
ruinwilsanumllitlodlsonlomadlvodumll
Tho rub commas lo same In. prloliy dunno!
mm. Ilswnlnq no me am channel. ll calvily
ooours on tho priorlty cmnnol. lho mob wIII would.
on loll“ scan channel, no lo me Mo channel.
one hold lor 1m mmllon cl Ins lransmls n. I! you
wish lo lo I many. on the prio cmmal,
mm (In ham! Solemn! knob lo priorily
dunnol. than lunsmi, One. am» has come on
mo Monty chanml. IM radio mum to noon
opemuon
VIM! m0 PHI W. NM ON and SCAN swlldl
OPEMopemlonismmesamluln Mom
Bl The find prlorlly ammo! Is anal-d at the
prom! rlla. ll new court on the poorly channtl.
In! rldb Ml r to priomy chmnol and mld for
on “man u tho lransmlssiorg ll you wish lo reply
lo a massage head on m: pmrlty channel, press
the NT swim and tho Mb wil mlmulloally
truumll on lhl pr‘v' orllnml rigorous; of the
smlnq cl rm Chan": some: knob. In Prlonty
Modoclnemdiowflmysnmonlm lofty
mnml l mu FRI noggin Men I: ON. TN rlomy
Indium mi own on as I mum“ that you are
mmmifli‘g on the pflo channel Once acuvily
has com on In! prlo ohaml. lhe rain will
mum lo m. Chum-l Solomr knob roam channel.
wan mm SCAN mo FRI bugls switches ON. ma
llflowlllscanwmlilooksonlo mlfllvochamell
TM uh oontlmn lo anal. tho prlo'ily chum!
whlh Inning b 111- m charm-L ll let'my
occurs on m. priority d’lflllel. mo Mlo wil override
(ha mm sun chamol. to lho pmmy enamel
we hold lovlho mullon rm mmminion. ll you
wihwn lonrmsugonlmpflofllychlnml,
pun [ht Mull 31d radio will WWW
luau"! on me my clmml. regard“: 01 the
Mus m m. mm! Selector mm In Prlomy
Huh 0 1h. rub will My: lmmml! on tho snowy
enamel if m. PHI locale switch Is on. TM may
Infidel wlll come on to remlnd you mu morn
lam-mm on m- wiorly‘ chum-L one. may
monuododlyomnmumudomunlm
w oporalon.
Pm 3-7
OPERATION EPH SERiEs VHF HADD
F Changing in! Pmrly Chums!
The iIx-fl glorify channci uud ii Pr'nriiy Maths 5 and C may be 9mm set or may be
changub . See ‘PRI Kay Landau” 01,319. 2-6. ii in. min has a chmgubh poorly
dilmsi. use m- inibwho mute mlkl l M0.
NOTE: Only on channel can be dusigmiod n in. Wily chum.
1. To avoid postibh contusion. turn OFF the FRI 1nd
scmmmcmm nnihnnpoltha ride.
a Man ms Chamui 80W knob in the chamai
that you wish to GM! as Ifie MW pilotity channel.
‘m 3. Pan iris [fifll] kny. A phi-m Mop will sound. and
‘ E h a m- ‘PH‘ mneilror will b. dipiayud. indicating
i ‘ innit-am minnow/me pmmy
mums-u- chamai.
i" Ammimbohoihaprbt'andnmmad
LHBE' 3 chum-i. Bunion-litmus: inqoiim same
i l- alumni. "Wm"! puimname occurs mu me
mumv pfinrity chamoi is "cl use I sun criminal.
0. Selling Fnonty Chennai Lodoui
i. To lockoui a priority chmnoi selling in. min nun
iim bu mammal ior priority und- B of Cl
2. Virilhih'flminnnfmaiopeminnwndcwlha
clams! salsa knob to in. mm prioriy chmi
3. Pass in. [Pail my on 1h! klyboard. K in. PR
uni-chin! appears on me dbphy. in! FRI Kay
w luncuon B mind. I! ihe PR mnuncimr
don not null on ma dimily. 1m PHI Key Lockout
Human is cnahindi
mm \|/ i 4. Pm ma PRI Kny Locum iunnion in firm
i u_ A334? on 0: disabled. 5“ ‘PHI Key Lockout" on
i ' 'f- J‘ pan. 2-6.
H. use: Cod. m Sci-silo"
Cumin Bendix/King Radix model- wilh kl bead and dint-y nun uur 3mm cl Cod-
(‘mam vans I ml at in. Chum-i oimr knob “mi Thu is scent-pushed using
ihe inboard. mdin an i:- pmumnmou io enable ur asabie this loam». The
amniiimmmydeodoG-mdandam
rum has also as
rum-my ancCodi Guanine nth pulionsnownnnihc Chmn‘i Sandor knob. Thl Coda
Guard van-s ior Chamois 1-0 can be pill-d any item their normal paring and muuisd
wiihanyolil-mrmwmfiuhmemm.
For “was. in m lhl Cod. Quid Vliuubl Chum-i 9mm. lroquonu‘n of Chaml 5:
1. Tum OFF the FRI and SCAN WI switch“ bn in.
lap 01 it- radio.
2. Set in. Chennai Salado! knob in Channel 5.
EPH SERIES VHF RADIO
} an
L RBE L 5
mama“.-
NOTE: In scan or may scan ma. m;
not vrI it an warmr-a
OPEHAflON
3. Pru: lb: (01 Ray on ma radio kayboard. Tho CG
annunclalor will he dsplayad.
Tha radio W. now aparalt on the lroquancles 01
Charms! 5 will: Channal 9 Coda Guard van-s.
TM 7 519mm dlsplay will snow lha minded
chamal an the left (5) and the Coda Guava valua
manna! an um mm m
The Ami-awn: daplay wlI snow 1h. Code Guam
val» channel. man m0 ulmsd channel To see
me Com Guam value mam-r aqaln. pros me 01
My on (fl! kayboam: ‘I’ha gmup rlumlm wrl a
(ll-play“. lollowid bnally VI lhe Coda Guard valua
channel. lllan rm sol-m cnannol.
4 Press the [0] My no use! all valuas lo the on lnal
prom-mum. or pan 1 dlllaram dioll nay (l~ ) lo
ulna a MW we! can. Guard vans.
inlay all not shut: salecled user Code Cum values,
alum/ad Cod-Guamvalueslnsean moat.
NOTE: Dru-Omewuvahanasbaonuucadbrmumudiwilmlchanqawenll
mark lmarmpladorlllha Charm-l selector knubisehangad.
I. Busy Channel Oplrallon
ll lna radio has boon programmed lor busy cram-l cannon. i wil operate in cm of 1m
lemlng mm mar
Busy Channel mm"
mums
TM yellow Bus Channel Indicator WI! 1 man
“u earner am on ma channol sel ad. I! the
MI saloqn la a God. Guard channel and ma
unmet coda ls nol damsel. lm Busy Channel
Indicator-mil min on for'“"fi'ubrili°n1.°:;m am"
acfiviy no massages wr . nng
Sam and Priorlly Scan opuallen. lm Busy Channel
lndalor wI glow wmn lcwily "s deeded on any
mantiamlhescanm wmnscaming
Coda Guard channols. mm rm Squeldl knob m lo
In. God- Guaru polnianr and Ill. acllvly nu bun
«tact-d. tho Busy Charm-l Indlcawr will glow lor
the urn. portal necessary to delarmlm I the pro r
Code Guard has been rue-Md. caul‘nu In. L lo
“flash“ at varlous rat-s. In Prionly Sean opatatlon.
rm busy Channel India!“ will remain on hr lha
wribfl d the cam" aah/fly on In! prb channel
mmaflnacorrudcoflaluflluw ornol.
M! 3-0
OPERATIW
Busy Channel Locknm
Busy Chmml Lockout 00mm
J. AN! Wm
K. DfMF Oplrilloll
moms
EPH SERIES VHF RADIO
Tho Busy cram-i Locknul «stun mall‘s only to
than cumin pmraqmna for native Coos Guam
opt-mien, Wmn wrist ncfiviy has bun “inane
on ma dunnoi «band. (in reams Code Guard is
chldmt if m- p r cod. is prison! you will no
uni-mime!!! channel. riamncomdsouo
orwnsradivityonvyisunemmnima
swam limb Is not in the 6000 Guild position. (he
“MIMI! “- disablod. an aim ion- '! hoard. and
in. LCD denim the word ~Busy" wmn ms radio‘s
F'TI’ Is amassed.
Channels not gamma-ed for rue-iv. Coin Guru
mailer! M! Ward march” of carrier activity.
This moo aural-s in the 5am manner as Busy
cmwmmummame uurcanovmm
mmwwm' V-Squfichkmbofllhl
Cod. Gum! mm. transmitter is lodud out
mmmnsweimmssmmnecmmm
A DTMFIANI 1mm mam 1! also MINI. on all
mantis. I enabled. a “worm: cl DTMF ms
similar in in loans used by a star-dam amnion
almon- wII in aned “a! limn mm!
P‘fl'swichlwivmd. AslmntoilhflANi
mime! nnsm‘md will also be heard wow!- it!
1mm speaker.
wmn DTMF and AN! an bov- manila 1m ANI inn-
“wane. vii b. mmlmd only alter lhe [EMT]
m was“ Milli lhe Barnum PTT Mild! is
‘ as. A mum 01 int ANI number lrunsniti-d
val also BO man: man me scum
mwruoseaippmmnlwypaficanbeusnd
for DTMF maul The main can no pmgrammed
Io ambl- uv 0 mil locum. To mo in.
DTMF'unctbfl sirmlyanssw mama ”I'I'twitch
alum-swam“: Mod. Nimble
melons will b. have mm mo lrom speak".
Th C PR. .n¢CLR wood
Dfifimmllfimhim m" “
EPH SERIES VHF RADIO
32.8 GROUP OPERATION
A. Group Dmflpfion
B. erp Sanction
QrP GS
rum o-rur
,9’P 35
M my
5th=e
nun-m nwv
FIRE H T
”wane-e our."
‘nn r l
L—figgéfifli
"hasfpss
Annuals-our
IWWW
OPERATION
Tin cnml sol-cor knob has 14 positions.
films with mor- ihln 14 channels or! stoma
m ‘nroups' or 13 dramas “on.
For slmplllcmq purpnau owl group should no
look-d I! I: In umwum “dunno! radlo. Eun
m can M fimgmmrr-d to have an ‘mmal
purnslonaly‘ wit tho operational failures «wired
en arr
Radon win an Ayah-numeric display can be
program-o with group labels. Sn "Group Labor
on ”002-10.
To avoid onrlus'on. with In. SCAN und PR!
sultan: to in. OFF position. By pruning tho (ll)
lay on me kayoad. mo display shows you which
group you are opera in. For “swim ml:
“simian shows tho a lay immune om 00.
Puss lb. KENT! by or van lpploxiMly 5
mm; m- radio mans no normal opomlon and
the dlsplay shows the channel solected.
wtm an Momma-one display crossing mo At] key 3
saeono llmo sham ma group label. Pros I [EMT]
My or ml roxlrnai-ly 5 «outrun: 1m rm
brlnlly dually: Usor Coda Guard channel label
(ll my) lh-n rtvms lo norrml opemian and dlsulays
the IM ol the animal filtered.
Tn change woupt. pros: tho [ll] kn lolowod by m.
p numb-r doslrud. Fuss the lay or was
uproxirrllery 5 saw: me radlo men; I: normal
openmn lor ml growl and the nlocm chnnml
app-m In lhn display. All scanning Ind priority
him": “I‘m 511m onry tho chanmls in the
MMMOD'MM
Whine mu.iarlofl-p runmsdor
invalu ur‘ls‘I ”fixed (05. brrzgunvle). the
mm“ ”in MN am (no rm will mum
la in! pr'vloutly nleaed groupr
Pg: 3-H
SECTION IV
THEORY OF OPERATION
4.1 INTRODUCTION
The sect‘nn cousins lhe lhecry oi ppereflen lor me EFH Series “waivers. To aid in
understanding the operation of the equipmere. schemes diagrams are Iound in Section Vi of mi;
annual.
L2 EQUIPMENT DESCRIPTION
The EPH series redo! en eel-contained VHF FM Treneeewen counting In the "8qu lo 17AMH:
bend. EFH mm are dignity lymhnizefl and use e mole cyan! inc Imp-my camel. An
EEPFIOM is Imported for the SW oi mam-I frequency. Code Gum. and Dual Tone Muiflple
Frequency/numb Numeric Idereiier (DTMFIANI) encode mrmwon LED: insure lrmsmli.
priorily. low may. and busy channel.
Toggle switches control higMow Iranm r. prioriy sun. and mill-channel sun. Status and
channel lnlenmflonis deptyed ever a Im'crystal die (LCD) on Keyboard/Display maels.
Connectors are pmfled on the em 04 lhe unl hr one"! antenna. "ml-one. speekev. and other
epiionei modes. A verity oi Mist-oil may puke In I.» neiehie. Usable channels are
deelerpmwemmebie.
4.3 THEORY OF OPERATION
cmmy fer me E?" series transceivers ie unwind of but mean mite:
The RECEIVER consists 01 HF preseiemrs. RF amplifier. "fixer. IF Mere. IF lmpifiere. FM
IF chip, and noise smeich emery.
The TRANSMITTER consist ol power armlil‘ier. hamnic fler. enema switch, em power
comm! civcuiry.
The SVNTHESIZER census oi meme centrem oscilum' (VCO). VOO butler. preecalef
by"? preecaier. Welter lC. reference «diner. loop liter. and acquisition aid an
new ry,
The SYSTEMS AREA consists oi microprocessor. microprocessor osciilmr. EEPROM.
sign-ling and "new, here end liming. SV and 9.2V regulate“. "Iniminer was. devillinn
oompenutinn. mulch Inmneid cirwury. and receiver audio.
1.3.1 RECEIVER
The receiver "- a Gui melon design with immediate Ireeuenciee of IiQMHz and
field-h. HF sigma received enh- menu pm lhroum the antenna when and mm one.
The from end concise a! er- armiiiier end 2 miclupmeeesnl tuned harness filters. The front
and milks Ihe receive hequerlcy end memes image. M IF m oIher Ireqxencies that
degrene fee-m: Mon-name.
RF sine: from me Iron! end emer a me! Mien cement them In I6.9MHz. The 10 BMHz
IF signal wees ("won a cryew filler! which pmvifie econ! channel eeiedhrily. The IF
Inller m umfiee the em end calcite ‘e In Ihe kHz IF “named circuit The
45 kHz IF ch' consists of e mixer. Elmer. mum and mien circuit. The 16st
sign-1mm muwwuww-mnusswmfi .Aueramicrimra¢ssm
provides me Eden-m cheml unduly. The lignel is unlined by the limiter and
demand. Aude prone-sing in men done on lhe owone been-L filtered audio new. u
need be pwvioe e equeich Ireiulion.
THEORY OF OPERATION EPH SERIES VHF RADUO
lou-
nun... n...“
e "um: um
Ina-nun:
,. 1 mm
"Mil-"IO
m u
O—v—‘ mum-m
Am.
”nun
< 1"
° mun
rad-um “um-e
A. RF PRESELECTORS
Thou-sebmspmv-deqrammudbo'afllwmnum‘mm a .Bom
bananas Ill!!! In vanaor land which allow: 3 wide inquoncy Amt-ad"| were! th-
paw-cw: “Mn a ham nI CISMNZ. TM prmlomrs consist of L2. L3. Ll. L5. and
Milt-d drum!
3. RF AMPLIFIER
The RF wlificr is I “all (mum lnplifiur 91m zzdb 0! gain. The amplifier consists
0! 01 and amidst! clmuury.
C. MIXER
Tm balm-d aloe. nix" com tho RF Inquncy to 169mm The mixer consists 01
ans, CFI7. can. cm. and imam-d clmuiuy,
D. IF FILTERS AND IF AMPLIFIERS
Tho aymi mm FHA and FL‘IB m cm a menu: “We manuamn to
"scum: mac“ no the main! may. The mm allhe rs Is 151041 The IF
mum wines zsub 0! gal" a! m. MHz. Th! nmpiiot comm: of O4 and niacin-d
Witty.
E, FM IF CHIP
The PM IF am 12 a 2nd mix". l h gain m. l d-modmmr. ll! OP-AMP and
1 “mm nigger. rumor com-m m 10. MM simal to 455m; Th- ml oscillator Io:
In. mum-1m: 01 a 17355an crystal (V! and mod-10d ci . The 455m: signal is
"ulna by a commie Ill! FLZ. A Hill! I2 amide- most 0“ hr m- waiver.
TMFM aI uhmmmdwm-m-lnnmcmmb mammal“
modal drwiry.
F. NOISE SOUELCH
Th: dammed Mia B 1110de“ mm will" in mm mm consisting 00 I2‘s 1!"an 0P-
AMF and nil-mp! away. Sawd- pin com! n W b 00 and ”sedated circuitry
The squid- mm is act-cm by 2‘s inn-mil scum r. a micropmassor saw-pits
mt mini! “We! uulwl w datum SW lava! and can Iriermlfian.
Paul 44 Am
EPH SERIES VHF RAND THEORY OF OPERAYION
4.342 TfiANleTTER
Tho Mmimr comm: ol low "flier black: (so. Mun). Then an:
m Fmr Almliln
(2) mm: Film
(3) mm: Slat"
(A) Power Control
M To E!
Main “g:
Haw-c
Arum
R! 5 Pun
;_ n
"Gumball-p-
The power "bf um um mcnury gllnno ampily lhl low lml 15: local “1:in
slnmlwalev alsmzzmbrzwnmm.
The harvnonlc filter ‘5 3 mm polo Imus! flier which pmvlm rehab" of Mn Innsmn
l‘raqamfs litmus.
The amount swibeh switches an RF signal path lrom mo amma pen to lhn lransmlnef while
lmransnimoa. Inmmmlmmhmammmn minuscule the roamr
Tm pew-r control clrwfl use: mack control w level the RF poem out ol the lransmiflov.
The dosing lransnillar our! r is adjust“ mom of (he PWR SET lino voltage lo:
mas mum 1 will ml (1.5 walls and an. for 2 Wall mm.
A. POWER AMPUFIEH
Th- pku umllller ls amused cl four HF amplllu amuse fig“). Thou Ira:
(1) Low 1.th Amplifier
(2) Pram Sun.
(3) Drivu 51m
(4) final sun.
Llnl Camel
(To Pow." Comm
‘-° o———<’ 07 ‘as n '
m . "ms?"
Dllw Flw
m Lovcl Prnmnr
Amplifm Shut sue sun.
mmummm
59min Pun-z

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