- Remote matching of antennas – less losses in the feed line. Designed for installation in a shack, under a shed, or in open (see mounting kit options). Can be distanced up to 100 m (330 feet) from amplifier.
- Powered and controlled directly from the ACOM solid state HF+6m amplifiers through the amplifier RF output cable only – there is no need for power or control cables between the shack and the tuner.
- Provides automatic or manual antenna change and automatic antenna impedance matching to the ACOM solid state HF + 6m amplifiers, controlled entirely from the amplifier front panel and your transceiver CAT.
- Guards the transceiver and amplifier against excessive impedance mismatch during the tuning process.
- Operates with two types of tunings: full tuning (basic matching cycle) and fast tuning (retrieving user tuning patterns from nonvolatile memory.
- Full tuning is 100% automated however a cycle is initiated only by the operator. User tunings track the antenna and frequency changes automatically during amplifier and transceiver operation.
- Four typical antenna types: Regular, Sharp, Wide, and Fixed-frequency are available so the operator can adapt the frequency segment width to the specific antenna bandwidth; BYPASS mode is also available.
- Antennas appear with a number, type, and user-editable name on the ACOM solid state amplifiers screen.
- Tunings availability presented by a graphic scale on the ACOM solid state amplifiers screen.
- A plenty of antenna- and tuner- related information is available on the ACOM solid state amplifier screen: menus ATU SERVICE, ATU MEASURE, ATU TUNINGS LOOKUP/ERASE, Resource-estimate function etc.
- Tuning “age” warning can be set to warn you when you attempt to use an outdated tuning.
- The user can archive all tunings from nonvolatile memory in a computer file as well as upload earlier archived files in the ACOM 04AT nonvolatile memory through the ACOM solid state amplifier’s RS232 port.
- Protections: PS voltage, Reverse PS polarity, Excessive RF voltage, RF current or reflected power at the antenna outputs, Excessive tuning power, Excessive Input power, Hot switching of relays, Overheating etc.
- Protected against building of static electricity in the antennas via bleeding resistors and against close lightning strikes via gasfilled discharger; unused antennas are directly grounded during operation as well as all antennas are when the ACOM 04AT is powered off.
- Frequency coverage: 1.8 to 30MHz and 50 to 54MHz, continuously (30 to 50MHz on request).
- Antenna impedance matching capability: all impedances with 50 Ohm-SWR between 1:1 and 3:1; (for some higher-SWR impedances matching is also possible see power limitations below).
- Maximum RF Input power admissible, average or continuous (no mode limitations; in brackets – PEP):
|
SWR |
1-3:1 |
3.5:1* |
4:1* |
5:1* |
7:1* |
10:1* |
|
Pin, W |
1200 |
900 |
700 |
500 |
300 |
200 |
* (when tuning is possible for SWR above 3:1)
- Rem: Operation at SWR above 10:1 is not permitted even though matching could be possible in some cases.
- RF Input characteristics:
-Nominal impedance: 50-Ohm unbalanced;
-Connector type: UHF/PTFE (S0239A);
-Input SWR during full tuning (basic matching cycle): below 2:1
-Input SWR soon after full tuning: less than 1.5:1 (below 1.3:1 typ.).
- Antenna output characteristics:
-Nominal impedance: 50-Ohm unbalanced;
-Connector type: UHF/PTFE (S0239A);
-Number of outputs – 4;
-Antenna SWR: between 1:1 and 3:1 for 100% matching, full power; for higher-SWR impedances (provided matching is possible) see power limitations above).
- Full tuning duration (basic matching cycle):
-Below 10MHz: less than 5s (2-3s typ.)
-Above 10MHz: less than 3s (1-2s typ.).
- RF Input power required during full tuning: 25W +3/-3 dB (12.5 to 50 W), non-modulated.
- Power supply and control: available from the ACOM solid state HF+6m amplifiers through RF-output coaxial cable; +26VDC, up to 25 W consumption; control data using a FSK modem at 60 kHz.
- Coaxial cable maximum length (same for RF power, DC power supply, and control):
-100 m (330 feet) for cable type RG-213.
Size and mass (operating)
width 345mm (13.6”)
depth 250mm (9.9”)
height 190mm (7.5”)
mass 4.2kg (9.25lbs).
- Operating environments:
-Weather protection: IP 53 (NEMA Type 3);
-Temperature range: -40 to +65 degrees C (-40…+150F);
-Humidity: up to 98% @ +40 degrees C (104F);
-Height ASL without parameters deterioration: up to 3050 m (10 000 feet).
Equipment
DX Engineering RT4500HD Heavy Duty Rotator
SPECIAL ANNOUNCEMENT: We are introducing the DX Engineering RT4500HD Heavy Duty Rotator pic.twitter.com/xxjFk0QW4D — DX Engineering (@DXEngineering) M... Read more
MTR3b_LCD Mountain Topper
Mountain Topper MTR3B_LCD Launching 10/1/18 – Please note we will have an initial release of 50 units on a first come, first serve basis. There... Read more
Xiegu X108 QRP Transceiver Kit 9 Bands – AM – SSB – CW
Xiegu X108 QRP Transceiver Kit 9 Bands – AM – SSB – CW 1 – 20 watts The X-108 is a single-conversion transceiver for all ama... Read more
CW Decoder – Inac
decoder translates and displays the tones of a telegraph or teletype signal on a display of alphanumeric characters. Only required to run a connection... Read more
Automatic Semiconductor Analyser
Connect any way round to automatically identify and measure a wide range of semiconductor devices. The DCA55 will automatically identify the type of t... Read more
Digital Modes
JS8Call Overview and Settings 2021
JS8Call Overview and Settings 2021 Read more
FT8DMC 3rd Anniversary-Activity Days 2020
To commemorate our 3rd anniversary, special event stations will be on air during the FT8DMC Activity Days from 1. to 31. July 2020. All stations will... Read more
