Icom IC-706 (Icom IC 706 MKIIG IC706) transceiver mods reviews software and diagrams

   
 
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Icom IC-706 (Icom IC 706 IC706)
Icom IC 706
Programming interface schematics for Icom:
Programming software for Icom IC-706 (Icom IC 706 IC706) :
PDF Service Menu for Icom IC-706 (Icom IC 706 IC706) :
PDF Service Manual with schematics for Icom IC-706 (Icom IC 706I IC706) :  Icom IC-706 (Icom IC 706 IC706) Operating manual
Schematics for Icom IC-706 (Icom IC 706 IC706) :

Mods for Icom IC-706 (Icom IC 706 IC706) :
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    Icom IC-706 (Icom IC 706 IC706) to codan 9350 auto antenna tuner interface
    Icom IC-706 (Icom IC 706 IC706) all version, modulation tweaks at ease
    Icom IC-706 (Icom IC 706 IC706) Mk1- Deaf on 144Mhz
    Icom IC-706 (Icom IC 706 IC706) Increased mic gain
    Icom IC-706 (Icom IC 706 IC706) Increased SSB modulation
    Icom IC-706 (Icom IC 706 IC706) e-z fix
    Icom IC-706 (Icom IC 706 IC706) NO RX Sensitivity
    Icom IC-706 (Icom IC 706 IC706) RF OUTPUT on 1 band only and low on others
    Icom IC-706 (Icom IC 706 IC706) Adding an extra RX-only port
    Icom IC-706 (Icom IC 706 IC706) Improved VHF receive mod (see also yellow wire mod)
    Icom IC-706 (Icom IC 706 IC706) To expand the band on the VHF portion
    Icom IC-706 (Icom IC 706 IC706) FM Transmit Fix
    Icom IC-706 (Icom IC 706 IC706) Microphone Audio Response Improvement
    Icom IC-706 (Icom IC 706 IC706) "Halbautomatik" fur manuelle Tuner
    Icom IC-706 (Icom IC 706 IC706) 10 watt tune modification/An Icom IC706 Tune Trigger
    Icom IC-706 (Icom IC 706 IC706) , MKII, MKIIG xmit mods - tip
    Icom IC-706 (Icom IC 706 IC706) Some tips.
    Icom IC-706 (Icom IC 706 IC706) MARS/CAP Modification
    Icom IC-706 (Icom IC 706 IC706) Review
    Icom IC-706 (Icom IC 706 IC706) Enables out-of-band transmit for 1.6 MHz to 54 MHz
    Icom IC-706 (Icom IC 706 IC706) More semsitive transmit for 2 meter
    Icom IC-706 (Icom IC 706 IC706) 60 MHz to 200 MHz bandpass filter
    Icom IC-706 (Icom IC 706 IC706) Extended RX mod
    Icom IC-706 (Icom IC 706 IC706) Info/mods
    Icom IC-706 (Icom IC 706 IC706) Expanded frequency
    Icom IC-706 (Icom IC 706 IC706) spare 0.3A

Icom IC-706 (Icom IC 706 IC706) technical specifications :  Icom IC-706 (Icom IC 706 IC706) technical specifications



Icom IC-706 (Icom IC 706 IC706) "Halbautomatik" fur manuelle Tuner

Die Schaltung simuliert einen am IC-706 angeschlossenen Automatik-Tuner ICOM AH-4 und vereinfacht das Abstimmen manueller Antennentuner.

Die Verwendbarkeit an anderen ICOM Transceivern mit Anschluss fur AH-4 Tuner ist wahrscheinlich, wurde aber von mir nicht getestet.

Das Abstimmen manueller Antennentuner am IC-706 ist normalerweise etwas aufwendig:

    Wechsel der Betriebsart, um einen Träger zu senden
    Sendeleistung via Menu reduzieren
    PTT drucken und den Tuner einhändig abstimmen
    Sendeleistung via Menu erhöhen
    Betriebsart wechseln
    QSO fahren

Wenn der IC-706 am Tuner-Anschluss einen Automatik-Tuner AH-4 erkennt, wird mit der TUNER-Taste fur ca. 20 Sekunden auf CW mit 10 Watt Sendeleistung umgeschaltet. Der AH-4 ubernimmt während dieser Zeit die PTT Steuerung. Danach wird auf die ursprungliche Betriebsart und Sendeleistung zuruckgeschaltet.

In PR-Mailboxen gibt es einen Vorschlag zur manuellen Simulation eines Automatik-Tuners, der aber immer noch einen, manuell zu bedienenden, Schalter benötigt [1]. Der Versuch, diesen Schalter äganz einfachô durch ein Monoflop mit NE555 zu ersetzen, schlug fehl: Der kurze Ausgangsimpuls des NE555 beim Anlegen der Versorgungsspannung irritiert den IC-706 und dieser verweigert die Zusammenarbeit mit dem äTunerô. Das verzögerte Einschalten der Versorgungsspannung des NE555 umgeht dieses Problem. Der Tuner-Simulator ( Bild 1 ) pass einschließlich Stecker ( Bild 2 ) auf eine Lochrasterplatine mit 43 mm x 25 mm ( Bild 4 + 5 ). Das Ganze wird in ein äGehäuseô aus Schrumpfschlauch verpackt. Die Bezugsquelle fur den Anschlussstecker findet man in [1]. Ein Stromversorgungsstecker fur PC Festplatten kann, nach Ausschneiden der in Bild 3 durch Pfeile markierten Stellen, ebenfalls verwendet werden.

Wichtiger Hinweis: Eine superdunne Leiterbahn verbindet im IC-706 den +12V Pin mit der internen 4 A Sicherung und schutzt diese bei Kurzschluss. Der Widerstand R7
( 15 Ohm ) ist also kein Gag.

Materialaufwand ca. 5,- DM , Aufbauzeit ca. 1 Stunde.



Funktionsbeschreibung:

Der Widerstand R3 legt den START-Pin des IC-706 hoch und signalisiert einen angeschlossenen AH-4 Tuner. Wenn die TUNER Taste gedruckt wird, legt der IC-706 den START-Pin kurzzeitig auf Massepotential und triggert dadurch den NE555. Das Triggersignal wird auch dem RESET Pin des NE555 zugefuhrt. C4 verzögert die ansteigende Flanke des Triggersignals, um RESET und TRIGGER zeitlich zu trennen. T1 legt den KEY-Pin des IC-706 auf Massepotential und schaltet den Sender ein.

R1 und C1 bestimmen die Einschaltzeit des Monoflops (R1*C1*1,1=T). T(NE555) muss grösser T(IC706) = 20 Sekunden bei IC-706MKIIG gewählt werden.

Da mir keine detailierte Funktionsbeschreibung der Prozessorsteuerung des IC-706 und AH-4 vorliegt, wurden diese Werte empirisch ermittelt.

Die Einschaltverzögerung von ca. 1,5 Sekunden wird mit R4 û R6, T2,T3,C5 und D1 realisiert.



Bedienungsanleitung fur die "Halbautomatik":

Die TUNER-Taste hat die gleiche Funktion wie mit Automatik-Tuner, nur Abstimmen muss man manuell. Falls die Antenne vor Ablauf der 20 Sekunden angepasst ist, schaltet ein Druck auf die TUNER-Taste den Transceiver auf QSO Betrieb um.



Haftungsausschluss:

Der Autor ubernimmt keine Haftung fur eventuelle Schäden an Geräten, Leib und Leben der Nachbauer.



Literaturhinweis: [1] ICOM @DL de:DJ9XB
24.08.99 18:30 21 1555 Bytes
tune control' fuer IC706, aber Handbetrieb HI
*** Bulletin-ID: O89DB0ZDF02H ***


Stuckliste

    R1 = 1M Widerstand
    R2 = 10k Widerstand
    R3 = 8k2 Widerstand
    R4 = 100k Widerstand
    R5 = 1k Widerstand
    R6 = 5k6 Widerstand
    R7 = 15 Widerstand
    C1 = 22µ Tantal-Elko 16V
    C2 = 10n Sibatit
    C3 = 100n Sibatit
    C4 = 100n Sibatit
    C5 = 22µ Tantal-Elko 16 V
    T1 = BC548 NPN-Transistor
    T2 = BC559 PNP-Transistor
    T3 = BC548 NPN-Transistor
    D1 = ZPD 5V1 Z-Diode
    IC1 = NE 555
    Lochrasterplatine ca. 46mm x 25mm
    Schrumpfschlauch
    St1 = siehe Text


Alternative zum modifizierten PC Stecker:

Steckergehäuse Molex 03-09-2041, Best.Nr. 143-207, ca. DM 0,40
Chrimp-Kontakte 02-09-2118, 143-219, ca. DM 12,- (gibt es nur in Beutel = 100 St.)
Fa. Farnell, Grunwalder Weg 30
82041 Deisenhofen.
oder
Original ICOM Kabel fur AH-3 oder AH-4
zum Preis von ca. DM 80,00








Bild 1 Stromlaufplan




Ausschneiden 
Bild 2 PC-Stecker

Bild 3 Layout ( vergrössert )





Bild 4 Lochrasterplatine

Bild 5 Lochrasterplatine Lötseite

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    Icom IC-729 (IC 729 IC729) service manual and specs
    Icom IC-730 (IC 730 IC730) service manual and specs
    Icom IC-735 (IC 735 IC735) service manual and specs
    Icom IC-736 (IC 736 IC736) service manual and specs
    Icom IC-737 (IC 737 IC737) service manual and specs
    Icom IC-737A (IC 737 A IC737A) service manual and specs
    Icom IC-738 (IC 738 IC738) service manual and specs
    Icom IC-740 (IC 740 IC740) service manual and specs
    Icom IC-741 (IC 741 IC741) service manual and specs
    Icom IC-745 (IC 745 IC745) service manual and specs
    Icom IC-746 (IC 746 IC746) service manual and specs
    Icom IC-746 PRO (IC 746 PRO IC746PRO) service manual and specs
    Icom IC-750 (IC 750 IC750) service manual and specs
    Icom IC-751 (IC 751 IC751) service manual and specs
    Icom IC-751A (IC 751 A IC751A) service manual and specs
    Icom IC-756 (IC 756 IC756) service manual and specs
    Icom IC-756 PRO (IC 756 PRO IC756PRO) service manual and specs
    Icom IC-756 PRO II (IC 756 PRO II IC756PROII) service manual and specs
    Icom IC-756PROIII (IC 756 PRO III IC756PROIII) service manual and specs
    Icom IC-760 (IC 760 IC760) service manual and specs
    Icom IC-761 (IC 761 IC761) service manual and specs
    Icom IC-765 (IC 765 IC765) service manual and specs
    Icom IC-775 (IC 775 IC775) service manual and specs
    Icom IC-775DSP (IC 775 DSP IC775DSP) service manual and specs
    Icom IC-780 (IC 780 IC780) service manual and specs
    Icom IC-781 (IC 781 IC781) service manual and specs
    Icom IC-7000 (IC 7000 IC7000) service manual and specs
    Icom IC-7400 (IC 7400 IC7400) service manual and specs
    Icom IC-7800 (IC 7800 IC7800) service manual and specs
    Icom X3 (X 3) service manual and specs
    Icom IC-7700 (IC 7700 IC7700) service manual and specs
    Icom IC-7100 (IC 7100 IC7100) service manual and specs
    Icom IC-7200 (IC 7200 IC7200) service manual and specs
    Icom IC-7410 (IC 7410 IC7410) service manual and specs
    Icom IC-7600 (IC 7600 IC7600) service manual and specs
    Icom IC-9100 (IC 9100 IC9100) service manual and specs
    Icom IC-78 (IC 78 IC78) service manual and specs

Icom receiver/scanner:
    Icom IC-R1500 (IC R 1500 ICR1500) service manual and specs
    Icom IC-PCR1500 (IC PCR 1500 ICPCR1500) service manual and specs
    Icom IC-R2500 (IC R 2500 ICR2500) service manual and specs
    Icom IC-PCR2500 (IC PCR 2500 ICPCR2500) service manual and specs
    Icom IC-R9500 (IC R 9500 ICR9500) service manual and specs

CB Equipment


President
Midland
Uniden
Zodiac

 Power amplifiers


Beko
Icom
Alinco
Drake
Yaesu
Daiwa
Collins
Kenwood
DanAmps
Ameritron
Autophon
Eto/Alpha
Command Technologies
E.F.Johnson
Dentron Radio Co.

FRS/GMRS


Bell
GPX
ENC
Tekk
Icom
Sony
Alinco
Drake
Cobra
Maxon
Vertex
Conair
Uniden
Jenson
Ranger
Midland
Whistler
Magnum
Unwired
Coleman
Motorola
Audiovox
Memorex
Columbia
Samsung
Standard
Kenwood
Cherokee
Panasonic
Freetalker
Vtech Vtalk
RadioShack
Fanon Courier
Sharper Image
General Electric
Oregon Scientific

PMR446


Sommerkamp
FreeQuency
Goodmans
Kenwood
Lafayette
President
Binatone
Motorola
Multicom
Albrecht
Maycom
Topcom
Xtreme
Ondico
Telcom
Maxon
Vertex
Zodiac
Yaesu
Cobra
Alinco
Icom
Alan
ITT