AH-4 - Radio ICOM - Kostenlose Bedienungsanleitung

Produkttyp	HF + 50 MHz Automatischer Antennenabstimmer
Marke	ICOM
Modell	AH-4
Kategorie	Funkzubehör
Frequenzbereich	3,5–54 MHz (mit Antenne >7 m); 7–54 MHz (mit AH-2b)
Eingangsimpedanz	50 Ω
Maximale Eingangsleistung	100 W (SSB, typisch)
Abstimmleistung (abgestrahlt)	< 0,3 W
Frequenzspeicher	45 Speicherplätze
Gehäuse	Wetterfest (Kunststoff, versiegelt)
Stromversorgung	Über Steuerkabel vom Transceiver (13,8 V DC)
Gewicht (ca.)	1,2 kg
Lieferumfang	Montageset (U-Bolzen, Halterungen, Scheiben), PL-259 Stecker (2), Steuerkabel (5 m), Koaxialkabel (5 m), Wetterschutzkappe, Gummivulkanisierband
Montage	An Antennenmast oder flacher Oberfläche
Kompatible Antennen	Lange Drahtantenne ab 7 m Länge oder optionale AH-2b (2,5 m)
Optionen	OPC-420 abgeschirmtes Steuerkabel (10 m), AH-2b Antennenelement
Sicherheitshinweise	Erdung erforderlich; nie ohne Antenne betreiben; Hochspannung während des Sendens
Wartung	Dichtungen prüfen, Kabelanschlüsse wasserdicht machen (Gummivulkanisierband)
Reparatur	Ersatzteile über Icom (z. B. OPC-420 Steuerkabel)

Häufig gestellte Fragen - AH-4 ICOM

Wie stimme ich die Antenne ab?

Stellen Sie die gewünschte Frequenz in einem Amateurfunkband ein. Halten Sie dann [TUNER/CALL] für 1 Sekunde gedrückt. Die TUNE-Anzeige blinkt während des Abstimmvorgangs und leuchtet dauerhaft, wenn die Abstimmung abgeschlossen ist.

Was tun, wenn die Abstimmung fehlschlägt?

Wenn die Antenne nicht abgestimmt werden kann, blinkt die 10-Anzeige und der AH-4 wird umgangen, sodass die Antenne direkt mit dem Transceiver verbunden ist. Wechseln Sie die Frequenz oder überprüfen Sie die Antenne.

Welche Antennenlängen sind zu vermeiden?

Vermeiden Sie Antennenlängen, die ein Vielfaches einer halben Wellenlänge sind. Beispiel für 29 MHz: 5,2 m, 10,3 m, 15,5 m usw.

Kann ich den AH-4 drinnen montieren?

Ja, das wetterfeste Kunststoffgehäuse ermöglicht sowohl Innen- als auch Außenmontage, z. B. direkt am Antennenmast.

Wie schütze ich die Antennenverbindung vor Wasser?

Verwenden Sie die mitgelieferte Wetterschutzkappe und umwickeln Sie die Verbindung mit dem Gummivulkanisierband. Zusätzlich können Sie Isolierband darüber wickeln.

Welche Erdung ist erforderlich?

Der AH-4 benötigt eine massive Erdung. Schließen Sie ein kurzes, dickes Erdungskabel oder -band an die Erdungsklemme an. Verwenden Sie niemals die Montageplatte als Erdungspunkt.

Wie viele Frequenzen kann der AH-4 speichern?

Der AH-4 speichert automatisch die LC-Kombinationen für bis zu 45 zuvor verwendete Frequenzen. Einmal gespeicherte Frequenzen werden in weniger als 1 Sekunde abgestimmt.

Mit welchen Transceivern ist der AH-4 kompatibel?

Der AH-4 ist mit den meisten Icom HF-Transceivern kompatibel, die den HF- und 50-MHz-Bereich abdecken. Ausnahmen: IC-706 und IC-736 können nur im Bereich 3,5–30 MHz abgestimmt werden.

Welche Leistung kann der AH-4 verarbeiten?

Die maximale Eingangsleistung beträgt typisch 100 W (SSB). Während der Abstimmung wird weniger als 0,3 W abgestrahlt.

Wie lang muss die Antenne sein?

Für den vollen Frequenzbereich 3,5–54 MHz benötigen Sie eine Antenne von mindestens 7 m Länge. Mit der optionalen AH-2b (2,5 m) sind 7–54 MHz möglich.

BEDIENUNGSANLEITUNG AH-4 ICOM

Fig.6 MOUNTING EXAMPLES

OPERATION

Tuning is required for each frequency. Be sure to retune the antenna before transmitting when you change the frequency— even slightly.

(eg. IC-7000)

Set the desired frequency in an amateur band. ①

• The AH-4 will not operate on frequencies outside

bands

Hold down [TUNER/CALL] for 1 seconds. ②

• " TUR indicator appears while tuning.

Hold down [TUNER/CALL] for 1 second.

③ " TUNE " indicator stays ON when tuning is complete.

- When the antenna cannot be tuned, "10" indicator blinks,

hand the AH-4 is bypassed and the antenna is directly connected

to the antenna connector on the transceiver.

To manually bypass the AH-4, push [TUNER/CALL]. ④

CALCULATION OF UNDESIRABLE ANTENNA LENGTHS

[EXAMPLE] Antenna lengths to avoid when operating

MH:

Multiple 300 1

of 1 / 2 = 29 × 2 × (1, 2, 3...) = 5.2, 10.3, 15.5 m

29.00

SPECIFICATIONS AND OPTIONS

◇ Specifications

- Frequency range

3.5–54 MHz (with an antenna longer

than 7 m; 23 ft)

7–54 MHz (with the AH-2b)

• Maximum input power

- Input impedance

• Tuning power required

- Rated voltage

[Non-Text]

- Usable temperature range

• VSWR

• Weight (approximately)

- Dimensions

(projections not included)

(1) 2

(1) 12 (2) 13 (3)

All specifications are subject to change without notice or obligation.

◇ Options

• OPC-420 SHIELDED CONTROL CABLE

Shielded control cable helps protect the transceiver from RF feed-

back and extends separation between tuner and transceiver up to

10 m. (cable length 10 m; 32.8 ft)

• AH-2b ANTENNA ELEMENT

A 2.5 m long antenna element for mobile operation with AH-4. Fre-

quency coverage: 7–54 MHz with the AH-4.

INSTRUCTIONS

HF + 50 MHz AUTOMATIC ANTENNA TUNER

AH-4

Thank you for purchasing the AH-4 HF + 50 MHz AU-

TOMATIC ANTENNA TUNER. The AH-4 matches your

transceiver to an antenna more than 7 m/23 ft long (3.5–54 MHz), or the optional AH-2b (7–54 MHz).

Please read these instructions thoroughly before installing and operating the AH-4.

DANGER!

Ground terminal

○ WIDE TUNING RANGE

The AH-4 provides reliable matching from 3.5 MHz to 54 MHz when using at least a 7 m (23 ft) antenna; or 7 MHz to 54 MHz when using the AH-2b ANTENNA ELEMENT.

○ AUTOMATIC DIGITAL CONTROL TUNING

The built-in 8-bit microprocessor chooses the lowest SWR using more than 1,040,000 different LC (coil/capacitor) combinations.

○ 45 FREQUENCY MEMORIES FOR FAST TUNING

The LC combinations of 45 previously-used frequencies are automatically memorized. Once a frequency is memorized, the AH-4 tunes on that frequency in less than 1 second. Note that the AH-4 does not memorize a frequency which is normally tuned within 2.5 seconds. Memories are retained only when the power is on.

△NEVER operate this tuner without a solid ground. Always connect the ground wire to the ground terminal. DO NOT use the mounting plate as a ground terminal.

NEVER transmit or tune without an antenna connected. Failure to use an antenna will damage the tuner.

△HIGH VOLTAGE! NEVER touch the antenna while transmitting or tuning. Place the antenna in a position where you are sure it will not be touched.

FEATURES

○ WEATHERPROOF DESIGN

The AH-4's tightly sealed plastic case allows convenient mounting virtually anywhere. The AH-4 can be mounted outdoors under your antenna.

○ 0.3 W RADIATED POWER

Radiated power during tuning is less than 0.3 W, minimizing interference to other stations.

NOTE:

The AH-4 can be used with most of Icom HF transceiver, which covers HF through 50 MHz bands.

However, the IC-706 and IC-736 can only be tuned in the 3.5–30 MHz range.

SUPPLIED ACCESSORIES

① U-bolts 2

② O-bolt brackets 2 ③ Flat washers (MC large) 9

⑤ Flat washers (MO large) .... 8 ④ Flat washers (MO small) .... 4

④ Flat washers (MO small)....4 ⑤ Spring washers (MG)....8

⑥ Nuts (M6) 8

⑦ Hex head bolts (M6 × 50) 4

⑧ Self-tapping screws (A0 6 × 30) 4

⑨ PL-259 connectors 2

⑩ Weatherproof cap 1

⑪ Rubber vulcanizing tape 1

Control cable* (5 m; 16.4 ft) 1

Coaxial cable* (5D-2V: 5 m; 16.4 ft)....1

*Not shown in the illustration to the left.

Icom Inc.

1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan

Count on us!

A-8295H-1EX-② Printed in Japan

© 1997–2012 Icom Inc

INSTALLATION

NOTE: After inserting the coaxial cable through the waterproof cap and into the AH-4 top cover, solder the PL-259 connector to the coaxial cable.

Remove the top cover (Fig. 1). ①

Install the control cable and coaxial cable (Fig. 1). ②

Connect and solder the PL-259 connector to the coaxial ③

cable (Fig. 3).

Connect the control cable to the AH-4 (Fig. 2-1). ④

Connect the GND cable to the AH-4 (Fig. 4). ⑤

Replace the top cover. ⑥

Mount the AH-4 in the desired location; on an antenna ⑦

pole, in your vehicle's trunk, and so on. (Fig. 5).

Connect an antenna to the AH-4 (Fig. 6). ⑧

Connect the control cable and the coaxial cable to the ⑨

transceiver.

Fig. 1 COVER REMOVAL AND CABLE INSTALLATION

About the rubber seal

Correct position
Incorrect position

NOTE:

• Make sure the cable clamps are well tightened with the screws, oth-
  erwise the waterproof protection may not be guaranteed.
  • We recommend that you also wrap rubber vulcanizing tape or electri-
  cal tape over the cable clamps for better waterproofing.

NOTE:

When attaching the tuner cover, make sure dust or other material does
not adhere to the rubber seal. If dust or other material is on the seal
when attaching, waterproof protection may not be guaranteed.
Make sure the rubber seal is properly seated into the groove.

Fig. 2-1 CABLE CONNECTIONS (eg. IC-7000)

NOTE: Connect the coaxial cable to the appropriate antenna

connector if the transceiver has more than one.

See your transceiver's instruction manual for details.

See the Fig. 2-2 as shown to the right above.

Put the flat washer, crimp-on wire terminal, star washer and then wing nut on the base bolt. Then, tighten the wing nut.
- Before you tighten the wing nut, make sure the base nut is firmly tightened.
• After you tighten the wing nut, carefully bend the wire terminal up so the wire lines up with the insulator.

② Place the weatherproof cap over as much of the insulator as possible.
③ Wrap the insulator with the rubber vulcanizing tape, starting at its bottom, then the cap, and finally the antenna wire.
This will help prevent water seepage.
- Also, you may wrap electrical tape over the wrapped rubber vulcanizing tape for better waterproofing.

Fig. 2-2 Waterproofing the antenna connection

Carefully bend this part up, AFTER you tighten the wing nut.

Pull the tape to slightly stretch it as you wrap firmly around the weatherproof cap.

Rubber vulcanizing tape

Fig. 3 PL-259 CONNECTOR SOLDERING

(10 mm ≈ 3/8 in)

① Slide the coupling ring over the coaxial cable. Carefully cut only the cable jacket, and pull it out to reveal 10 mm (0.4 in) of braid.
• Tin the exposed braid and then pull the jacket out.
Strip the cable, as shown to the left. Tin the entire length of the exposed center conductor.
③Slide the connector body over the cable and solder, as shown to the left.
⑧crew the coupling ring onto the connector body.

Fig. 4 GROUND CONNECTIONS

The transceiver and antenna tuner must have an adequate ground connection. Otherwise, the overall efficiency of the transceiver and antenna tuner installation will be reduced. Interference, RF feedback and electrical shocks from other equipment could also occur.
For best results, use the heaviest gauge wire or strap available, and make the connection as short as possible. (see the illustration to the right)
- A long wire connected to the GND terminal as a counterpoise is also acceptable.

Fig. 5 MOUNTING THE AH-4

• Mounting on an antenna pole
  

• Mounting on a flat location
  Using self-tapping screws
  Using nuts and bolts
  

Two identical line drawings of a digital meter device with base, no text or symbols present

(diameter: 6.6–7 mm; ¼–⁹/32 inches)