ATU 100 Mini User Manual Eng

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Technical Descriptin if the Autituner biard
ATU-100 mini board
by N7DDC.
Attention ! Theee e ee e no e erre icttionr en pre oeiaitionr on ree ere ot reir teree ie toe  eny pree prorea er wpe er e
e e ere teree ie ra ree eereoe  ot wpeicte ir N7DDC.

Attention! Thee intoe tetion prea iree in reir octetenr ir re ee on y wpeen ering e evicte wpire
fie twpee e vee rion 2.7. It yoe ee e enea e ro fin oer wpeicte rofwpee e vee rion ir aeing ere a epr ere
ro fie twpee e vee rion 2.7 ering ree pre oge ettee  ro enree e reer ree intoe tetion te ot ree
ercte iprtion tercteer ree evicte pre opree tier.
Yoe cten owpn oe eny vee rion ot fie twpee e eee e:
http://www.sdr-deluxe.com/forum/7-17-1
The schematic in editor:
https://easyeda.com/rolin791/atu-100-mini-v1-1

PCB roee cter toe  ree pre oge et Sprint Layout 6.0:
http://www.sdr-deluxe.com/load/

Purpise
Thee evicte ir inren e toe  ere er en e etenr ot etereee  e e io eqeiprtenra er pree r ot etpr ifiee r
oe  re enrcteivee ra oe  er e repree ere evicte reer pree toe tr ree tencttion ot tercteing ree oerprer
itpre encte ot prowpee  etpr ifiee r PAA wpire enrenne tee ee r.
Thee tencttione iry ot ree rofwpee e e owpr yoe ro ere ree evicte in ctotpr ere y ifee enr
cton itionra er wpe er feexia y e jerr rote pree eteree r toe  rprectifict cton itionr ot ere. Howpevee a
reee e ir e ctee rein “aere” to e a efine ay ree eve opree a wpire pree eteree ra eee einefee  e etee e e
ro er “ etee r” pree eteree r. Theere ee e ree pree eteree r reer wpee e oe igine y inctoe proe ere in ree
fie twpee e en wpeicte wpi tencttion enti ree eree  wpenrr ro cteenge reet rprectificte y.
Thee aerict to e a ectctoe  ing ro ree eereoe a ctonreinr ree notine ctotpronenrr in ictere in ree
iege eta e owpr yoe ro ctonnectr e rwpo- ine 1602 LCD irpr ey wpire en I2C proe r eexren ee  wpire 4E
e e err en erer jerr one aetton ro ctonre o wpeicte ir ctonnectre ro ree ctonnectroe  on ree aoee  .
Thee pree eteree r ere ay etee r geee enree e e iea e opree etion ot ree evicte in ree aerict vee rion
en ee e ree tein pree eteree r toe  rerting ee ing rofwpee e eve oprtenr ay ree eereoe . Meny
pree eteree r cten ae cteenge ay ree eree  on reeie  owpna wpeicte cten cteenge ree aeeevioe  ot ree
evicte en even teke ir enerea e. P eere e ee ree ercte iprtion ctee ete y aetoe e teking eny
cteenger.

Using the «base midel»
Thee eereoe  erreter reer ree evicte cten ae ere in rwpo rctenee ior: er en e itione to e e er
pree r ot e re enrcteivee  oe  etpr ifiee a oe  er e rren e one evicte in e repree ere cterea wpire oe  wpireoer
in ictetion. Theee e ir no nee ro e e o rotereing. Bore ree aetton toe  tenee rree r ot rening en
ree oerprer ot ree ctonre o rigne te ot ree ctonre o pre octerroe  ot ree re enrcteivee  oe  etpr ifiee  cten ae
ctonnectre ro ree ctonre o ctonnectroe .
A reoe r itprectr on ree ctonre o ine ot err reen 250 msa wpeereee  wpire e aetton oe  e ctonre o
rigne a wpi cteere ree renee  e etenrr ro e erer ro reeie  oe igine rrerea wpeen e in ectrencter en
cteprectirencter ee e ree ne of. A ongee  eo on ree ctonre o rigne wpi re iggee  ree rree r ot ree rerepr
pre octerr. Thee e ere r ot eecte ctonfigee etion pre octerr ir rroe e in ree non-vo eti e tetoe y ot ree
evicte en ir e erroe e efee  ree ning of en on ree prowpee .
A itione rigne r toe  aettee  inrege etion wpire eexirting eqeiprtenr cten ae reken te ot ree RA7 en
RA3 ticte opre octerroe  ctonnectroe r. Their ir ree Thex_e eqeerr rigne ctee e iee  e eqeerr toe  reningA in ie ectr
en invee re toe t. Their rigne ir irree ay ree evicte'r pre octerroe  toe  ree tite necterree y toe  reninga
ee ing wpeicte ree re enrtittee  terr pre ovi e e ctontineoer ctee e iee  ot reirea e prowpee . Their cten ae
ere ro eerotere ree ctonfigee etion pre octerr wpeen ree eree  oer nor nee ro pree toe t e itione
ecttionra eexcteprr toe  eowp ro pre err ree ThNNE aetton. Their ir nor necterree ya rincte ree evicte e owpr

rening wpire eny inprer rigne ot refctienr prowpee a ae ir rpreectea to e ere wpire en RF rigne ay eny
rypre ot to e etiona re ege epreict prectkerra en even e noire- ike rigne . Thening wpi rropr wpeen ree
inprer rigne ir owp en e erete wpeen ir eprpreee r. Theer ira ree rening cten octctee  ie ectr y in ree
noe te opree etion ot ree eqeiprtenr.
Howpevee a toe  e e iea e opree etion ot ree evictea ir ir e virea e ro ere reir rigne ro e e ecte ree
rigne prowpee  ot ree re enrtittee  ro rete toe  ree evicte ve eer ee ing reninga toe  eexetpr e ay ectting
on ree ALC oopr.
Thee Tx_request rigne cten e ro ae ere ro ctonnectr e LED reer wpi in ictere ree ecttiviry ot ree
e jerrtenr pre octerr in ree ctere wpeen ering ree LCD in icteroe  ir en erie ea e oe  itprorria e.

Indicatin
In genee e a ree evicte cten ae ere wpireoer irpr ey e etenrra wpei e toe  toniroe ing ree opree etion
ot ree evicte yoe cten erea toe  eexetpr ea ree rcte e ot ree SWR teree  aei r inro ree re enrcteivee  oe  e
repree ere eexree ne SWR teree . Ot ctoee rea wpeen ering en eerorenee  er e repree ere evicte in yoee 
owpn cterea ir wpoe ae vee y ctonvenienr ro eeve yoee  owpn irpr ey toe  toniroe ing ree opree etion en
reir evicte e owpr yoe ro itpr etenr ir in ifee enr wpeyr.
Thee eerierr wpey ir ro ctonnectr e rwpo-cto oe  e e -ge een LED wpire e ctotton eno e ro ree prinr ot
ree ctonnectroe  toe  pre oge etting ree pre octerroe . In oe  ee  toe  reir tereo ot irpr ey ro wpoe ka yoe
nee ro cteenge rote ot ree etee r ve eera wpeicte wpi ae ircterre ae owp. Thee ctotton eno er
terr ae ctonnectre ro ree VCC prin ot ree ctonnectroe  +5 V prowpee Aa ree ctereo e ot ree ge een LED
ree oege ree ctee e enr ititing e erirroe  ro ree prin CLK ot ree ctonnectroe a ree ctereo e ot ree e e LED
ree oege ree ctee e enr ititing e erirroe  ro ree DATh ctonnectroe . Theera ree LED wpi ae ea e ro genee ere
ree ee cto oe r ot igera ge eena oe enge en e e a epren ing on ree SWR in ree ine wpire wpeicte ree
tercteing pre octerr wper ctotpr ere .
Ge een cto oe  ot e etinerctencte wpi rpreek eaoer SWR in e ine err reen 1.5a oe enge - err reen
2.5 en e e er SWR toe e reen 2.5. Thee LED wpi go oer er ree totenr ot ree rree r ot ree
e jerrtenr en wpi g owp itte iere y efee  irr ctotpr etion. Hee e yoe nee ro keepr in tin reer in
ctere ot cteenging ree ree tr ot ctooe  inetion en a ectctoe  ing ya cteenging ree SWRa ree LED wpi nor
cteenge ree cto oe  ot ree g owpa ir wpi e etein ree rete epren ing on wpeicte SWR wper fiexe er ree
en ot ree pre evioer rerepr pre octerr.
A similar LED display can be implemented using three LEDs of different colors, connecting
them to the pins RC0 (Low), RC6 (Mid), RC7 (High). LED anodes should be connected to the
processor ports via current-limiting resistors and cathodes to ground.

Mecte toe e intoe tetion eaoer ree opree etion ot ree evicte cten ae pre ovi e ay ctonnectting ro
ree ctonnectroe  toe  pre oge etting e rren ee  rwpo- ine 1602 LCD irpr ey. Yoe wpi e ro nee e rte
I2C proe r eexpren ee  ctee  ro ctonvee r ree pree e e LCD ctonre o cto e ro en I2C ree ie aer. Theere ee e
wpi e y ere aoee  r ering ree PCF8574Th cteipr en eeving en ectcterr e e err on ree 4E aer. Their ir
ree in ictetion reer ree eereoe  erer ay etee ra en ree etee r fie twpee e ir e e ee y ctonfigee e ro
wpoe k wpire recte en in icteroe . Sote proe r eexrenrion ctee  r ere PCF8574 cteiprr wpire en “ATh” in eex en
reey eeve e ifee enr aer ectcterr e e err. Theey cten e ro ae ere ay rprectitying ree erie e e e err
wpeicte wpi ae ercte iae ae owpA.
Thee prinr ot ree pre oge etting ctonnectroe  wpeen ree LCD ir ctonnectre ee e ere toe  reeie 
inren e pree prorea VCC ir 5 Vo r prowpee  reprpr ya GND ir ge oen a DATh en CLK ee e ere en ct octking
iner e erprecttive y.

Thee e iger ri e reowpr ree in ectrencte en cteprectirencte ve eer rer ay ree evicte er e e ere r ot ree
err rening pre octerr. In ictetion ir ctee e ie oer in ree fie rr en recton inera en in ictetionr L en C
cten ae inree cteenge . Their ir ere ro irpr ey ree ctonnecttion proinr ot cteprectiroe r ectctoe  ing ro ree
ct erricte L-reepre rcteete. Soa it ree in ectrencte ir on ree ropr inea ir ir errete reer ree cteprectiroe 
ot ree renee  ir ctonnectre efee  ira reer ira ro ree oerprer. It ree in ectrencte ve ee ir irpr eye on ree
aottot ine ae owp ree cteprectirencte ve eea reen ree cteprectirencte ir ctonnectre aetoe e in ectrenctea
reer ira ro ree inprer.
Thee irpr ey tey e ro ae iefy reowp rote inrcte iprtionr eexpr eining ree ctee e enr to er ot opree etion
ot ree evicte. Theere ee e ThNNEa RESETha OVERLOAD wpeen e rigne wpire e prowpee  ot toe e reen 150
wpettr ir eprpr ie ro ree evicteA.
Tho e e ecte ree rize ot ree evictea ir ir prorria e ro ctonnectr rte -rize OLED irpr eyr reer ere ree
rete I2C aer ro ctonre o .
Theere ee e tonoctee ote OLED irpr eyr wpire e SSD1306 ctonre o ee  en wpire e e ero etion ot
128ex32 priexe r wpire e iegone ot 0.91 incteera wpire e e ero etion ot 128ex64 priexe r wpire iegone r ot

0.96 en 1.3 incteer. Theere irpr eyr ee e ctonnectting in ree rete wpeya aer in oe  ee  toe  reet ro wpoe k
ctoe e ectr ya ree fie twpee e pree eteree r reoe ae cteenge ro ae ercte iae ae owpA.
Thee in ictetion on ree 0.91 128ex32 irpr ey ookr ike on e e ege ee  1602 irpr eya wpei e eeving
tiny itenrionr.

Thee in ictetion on 128 * 64 irpr eyr ookr e itt e ifee enra in toee  e owpr en wpire ee gee 
cteee ectree r.
Using OLED displays, unlike to the 1602 LCD, allows to indicate an inductance values more
precisely by one sign, and capacitance values by one more sign. This can be very important if you
decide to make your own version of the tuner with different values of the installed components.
Only these displays can indicate the value of capacitance above 999 and up to 9999 pF.

Additinal butins
Thee evicte e ro e owpr yoe ro ctonnectr rwpo e itione aettonr reer eexren ree aerict
tencttione iry. Theere ee e ree Byprerr en Aero aettonr. Thee aettonr ee e ctonnectre e erprecttive y ro
ree proe rr ot ree RB5 en RB4 pre octerroe . Ir ir e ectotten e ro ere proe rr a octke ay cteprectiroe r ro
evoi inree tee enctera wpeicte tey ein ee  ree pre octerroe  opree etion.

Pe erring ree Byprerr aetton cteerer e retproe ee y reer owpn ot e cteprectirencter en in ectrencter
on ree prere rigne te ot ree inprer ro ree oerprer. Their to e eer ree ctoe e erpron ing in ictetion on
ree LCD irpr ey in ree toe t ot en en ee rctoe e. It Aero to e eer aeen ecttivere a irr opree etion wpi
ae retproe ee i y rroprpre wpei e ree Byprerr to e ir in efectr. Pe erring ree aetton egein ree nr of
Byprerr to e en ree evicte e ectonnectrr ree cteprectirencter en in ectrencter reer wpee e inrre e er
ree en ot ree err rening pre octerr. Aero to e wpi e ro e erete it ir eer aeen ecttivere pre evioer y.
Pe erring ree Aero aetton ecttiverer ree eerotetict to e ot ree evictea wpeicte ir in ictere on
ree irpr ey er e or rign. Thee evicte wpi e etetaee  ro ree n on ree eerotetict to ea en wpi
e etein wpire ir even efee  ree ning of ree prowpee a enti ir ir ree ne of egein ay pre erring ir egein.
Aerotetict to e cten e ro ae ecttivere ay cteenging ree pree eteree r ee ing ree fie twpee e
inrre etion wpi ae ercte iae ae owpA.

Autimatc mide
Thee eerotetict to e ot opree etion pre ovi er e eniqee oprproe reniry toe  ree eree  ro ere ree evicte
wpireoer ree nee ro pre err aettonr en ctonnectr eny eexree ne ctonre o .
Thee evicte cten ae erigne wpireoer aettonra wpireoer in ictetion en er ree rete tite wpi
pree toe t irr tencttion ot tercteing ree e erirrencte ot ree enrenne prowpee  reprpr y ine.
Thee e goe iret erer ree to owping: it ree ctee e enr SWR eexctee r 1.3 en ir eer cteenge ro 1.3 - 1A
e e etive ro ree ve ee e ectoe  e efee  ree pre evioer rening pre octerra ree rening to e ir ecttivering.
Nree ya reir cton ition ir eeri y ter wpeen ree aen r ee e cteenginga wpeicte cteerer en itte iere
re iggee ing ot ree newp rening pre octerr.
It necterree ya ree re iggee  ree ereo ot ree rening cten ae cteenge ay cteenging ree pree eteree r
ee ing ree fie twpee e inrre etion ercte iae ae owpA.

Special mides if iperatin
Thee evicte eer revee e rprectie to er ot opree etiona erigne ro tecti irere ree pre octerr ot
erreta inga eaegging oe  re oea ereooting.
Ween prowpee  ir eprpr ie ro ree evicte wpire e ree ee pre erre aettonr Thenea Byprerr en Aeroa ree
Ferr Therr to e ir ecttivere . In reir to ea ree evicte pre ovi er prowpee  ro e e e eyra wpeicte e owpr
yoe ro qeictk y i entity tee rr erroctiere wpire re enrirroe  rwpircteer oe  ro ee ing tee rr.
Ween prowpee  ir eprpr ie ro ree evicte wpire ree Byprerr en Aero aettonr pre erre a ree evicte
enree r ree ritpr e Therr Mo e. In reir to ea yoe cten tenee ya rrepr ay rrepra ere ree Byprerr en
Aero aettonr ro cteenge ree ve ee ot cteprectirencte oe  in ectrencte. A ong pre err on ree Thene aetton
e owpr yoe ro re ectr wpeicte e etenrr wpi ae tove er ree totenra en e reoe r pre err cteenger ree
proinr ot ctonnecttion ot ree cteprectiroe . In reir to ea ir ir prorria e ro teeree e inprer prowpee  en SWR
in ine. Thee wpeo e pre octerr ir ectctotprenie ay e ct eee  in ictetion.

Modification of the device to work on the low bands
Relatively small values of installed reactivities do not allow the device in the basic version to
operate effectively at frequencies below 7 - 10 MHz. The simplest solution of this problem may be
increasing the range of inductances and capacitors by two steps higher. The rest of the construction
remains unchanged. The algorithm responsible for tuning SWR wirks with no matter what values
of reactivity installed, but the indication of the correct values will suffer. The latest firmware
versions allow the user to independently set the values of capacitances and inductances set by him
for the correct indication on the display (to be described below). It should be borne in mind that
only the use of OLED displays of any acceptable type will allow you to display the value of the
capacitance more than 999 pF, but not more than 9999 pF. Download the source of the printed
circuit board, slightly reworked for ease of installation of large inductances here
ettpr://wpwpwp.r e - e eexe.ctot/ oe /irkeo niki

Technical Characteristcs,
«Base midel»
Thee e enge ot pree tirria e reprpr y vo reger: 10 - 15 V DC
Meexitet ctee e enr ctonretprtion: 300 tA*
Meexitet wpoe king ree oegeprer: 100 wpettr
Meexitet prorria e teeree e prowpee : 150 wpettr
Minitet prowpee  e eqeie e ro rree r rening: 5 wpettr **
Thee tinitet prorria e teeree e prowpee : 0.1 wpettr
Meeree etenr rrepr er prowpee  epr ro 10 Wettr: 0.1 Wett
Meeree etenr rrepr wpire prowpee  eaove 10 wpettr: 1 wpett
Actctee ecty ot prowpee  teeree etenr: 10%
Meexitet inrre e in ectrencte: 4 µH
Thee tinitet inrre etion rrepr ot in ectrencte: 0.1 μH
Meexitet inrre e cteprectiry: 400 prF
Minitet cteprectirencte inrre etion rrepr: 10 prF
* Thypricte ctonretprtion 100-150 tA
** Sote pree eteree r cten ae cteenge it necterree y.

Change if default setngs
Dee ing pre oge etting ot ree ticte opre octerroe a in e ition ro wpe iting ie ectr y ro ree ctonre o cto e
pre oge etAa ir ir e ro pre oprore ro e ectoe  e rte netaee  ot cte r ot ree e ewpe irea e tetoe y
EEPROM. Thee intoe tetion in reere cte r cten ae cteenge ay ree eree  aetoe e pre oge etting. Dee ing
eecte rree r ot ree pre octerroe a irr pre oge et fie rr e ee r ere te ot ree cte r ot ong-ree t tetoe y in
oe  ee  ro tee reee  ere reir intoe tetion toe  wpoe k. Theera ree eree  cten eeri y cteenge teny pree eteree r
ot ree evicte wpireoer en ee rren ing ree tecte toe e ctotpr eex rofwpee e eve oprtenr pre octerrer.

Be owp wpi ae ercte iae in erei e ree rignifictenr cte r ere in reir vee rion ot ree fie twpee e.
P eere nore reer ree netaee ing ot ree cte r rree rr te ot zee oa en ree netaee ing ir given in
eeexe ete cto e. Netaee ing wpire recte e e er ir cte e “e e erringa” en ree cte netaee  in reir
toe ter ir cte e ree „cte `r e e err”. Foe  eexetpr ea ree cte wpire ree e e err 10 ir nor ree renre cte
in ree ectctoenr. Their wpi ae ree 16re cte . Be owp wpi ae given on y ree e e errer ot ree cte ra rincte
ree e e erring ir ere in ree pre oge et toe  pre oge etting ree pre octerroe .
Thee ere in ree cte r reetre ver e ro e epre erenr ve eer in eeexe ete cto ea eowpevee a reir ir one
toe  ree ctonveniencte ot eree r reer reee e wpi ae no nee ro ctonvee r oee  eree ve eer inro
eeexe ete toe ter. Soa toe  eexetpr ea ro e ectoe  prowpee  ve eer ot 15 wpettra ir ir enoege ro wpe ire ree
netaee  15 in ree cte a en ro rer ree SWR 1.7a jerr wpe ire ree netaee  17. Cee ete y e ee ree
ercte iprtion en tocter on ree etee r ve eer.
Foe  ctonvenienctea ree fie twpee e cten ae e ee te ot ree ticte opre octerroe a cteenge tetoe y cte r en
wpe ire aectk. Tho e eree n e ve eer ro ree etee r ve eer ir ir enoege ro e e-fere ree oe igine eereoe 'r
fie twpee e.
00 — I2C address setng cell if the cinnected display.
Thee proe r eexrenrion aoee  toe  irpr ey 1602 te e on ree PCF8574ATh cteipr eer ree e e err 7Ea on
ree cteipr wpire ree “Th” in eex - 4E. OLED irpr eyr eree y eeve en e e err ot 78 oe  7A. Ir ir e owpe
ro e ectoe  eny e e err in ree cte toe  noe te opree etion wpire ree ctonnectre I2C evicte. Thee etee r
ve ee ir 4Ea wpeicte ctoe e erpron r ro ree LCD irpr ey 1602 wpire en eexrenrion aoee  wpire ree
PCF8574Th cteipr.
01 — cell ti indicate the type if display cinnected.
A ve ee ot 00 ctoe e erpron r ro e ctonnectre rwpo-cto oe  LED.
Ve ee 01 - 1602 LCD wpire proe r eexrenrion ctee  .
Ve ee 02 - OLED irpr ey 128 * 32a 03 - OLED irpr ey 128 * 32a en invee re itege.
Ve ee 04 - OLED irpr ey 128 * 64a 05 - OLED irpr ey 128 * 64a en invee re itege.
Attention! Woe k wpire irpr eyr oreee  reen reore ercte iae eaove ir nor pre ovi e ay ree evicte.
02 — autimatc actvatin cell. It yoe pr en ro ere ree evicte wpireoer e itione aettonra yoe
cten enea e ree eerotetict to e ay retng ree ve ee ro 01. Thee etee r ve ee ir 00. Ween yoe
ecttivere ree to e te ot ree aettona ree pre octerroe  wpi wpe ire ree ve ee 01 ro reir cte a reer
e etetaee ing ree eree 'r cteoicte.
03 — tmeiut cell efee  giving e rigne ro ecttivere oe  e e eere e e e ey. Their tite e ro inct e er ree
tite e eqeie e ro errea ire ree vo rege er ree oerprer ot ree RF erectroe  efee  ree e e eyr eeve aeen
errea iree er ree rprectifie proritionr. Sprectifie in ti irecton ra ree etee r ve ee ir 15. Thoo reoe r
etoenr ot tite cten cteere te tencttionr ee ing rening pre octerr.

04 — cell ti set the threshild setngs in autimatc mide.
Ir ir e ectoe  e in ree toe ter: ree fie rr netaee  ir ree SWR inregee  pree ra ree recton netaee  ir ree
renrer. Thee etee r ve ee ir 13. Theer ira wpeen ree eerotetict to e ir ecttivere a ree rening pre octerr
wpi ae re iggee e wpeen ree SWR ir eaove 1.3 en wpeen ir cteenger ro 1.3 — 1A.
05 — minimum piwer cell e eqeie e ro rree r ree rerepr.
Rectoe  e in ree toe ter: ree fie rr netaee  - renr ot wpettra ree recton netaee  ir wpettr. Thee etee r
ve ee ir 05a reer ira ree rening wpi on y wpoe k er en inprer prowpee  ir er eerr 5 wpettr oe  eaove. Thoo
owp ve ee tey e ere r in inrefctienr y fine rening.
06 — cell fir maximum piwer toe  rete rening. It ree inprer prowpee  ir eaove reir ve eea ree rening
wpi nor ae pree toe te en ree evicte wpi wpeir ree prowpee  eve ro ae rer ay ree eree . Rectoe  e in
ree rete toe ter. It ree ve ee ir 00a ree teexitet prowpee  cteectk ir nor pree toe te . Thee etee r
ve ee ir 00.
07 — cell ti set the riws ifset diwn (vertically move) toe  OLED irpr eyr. Mey ae necterree y
toe  rote irpr eyr. Thee etee r ve ee ir 01.
08 — cell ti set the ifset riws ti the lef (eoe izonre y toveA toe  OLED irpr eyr. Mey ae
necterree y toe  rote irpr eyr. Thee etee r ve ee ir 02.
09 — cell ti set the maximum inital SWR value, wpeen rening octctee r. Ve eer ee e rprectifie in
ree toe ter: ree fie rr netaee  ir ree SWR inregee  pree ra ree recton netaee  ir ree renrer. It ree
ve ee ir 0a ree cteectk ir nor pree toe ting en ree rening e wpeyr wpoe kr. Thee etee r ir 0.
Startng frim address 10, the values if the installed inductances. Thwpo cte r pree  ve ee ee e ere a
rree ting wpire ree rte err in ectrencte. In ectrencter ee e wpe itten in nenogene i. Foe  eexetpr ea 4 μH ir
4a000 nenogene y. We wpe ire in cte r 40 00. 110 nenogene y - wpe ire 01 10. A rore ot 10 cte r ee e
ere a rwpo toe  eecte inrre e in ectrencte.
Startng frim address 20, the values if the installed capacitirs. A ve eer in prictotee e . Foe 
eexetpr ea 82 prictotee e r ee e wpe itten er 00 82. 1.2 nenotee e r ee e wpe itten er 12 00. 10 cte r ee e
ere a rwpo toe  eecte cteprectiroe  .

© David Fainitski, N7DDC
2019



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