Overview

ACOM ASW-120 Remote Antenna Switch and Selector Sets

ACOM ASW-120 Remote Antenna Switch and Selector Sets contain two essential components: the 2000SW Remote Antenna Switch and the 2000S Automatic Antenna Selector, pre-set internally for 120 VAC with a USA plug installed on the power cord. This combination system provides complete antenna selection automation when interfaced with the Acom 2000A Automatic HF Linear Amplifier, or it may be used as a manually or PC controlled antenna switching system.

The included 2000SW Remote Antenna Switch is a rugged, high-quality weatherproof outdoor relay unit with 10 antenna ports and 1 common port, all PTFE UHF female (SO-239) connectors useable up to 60 MHz. At low SWR this switch handles up to 5,000 W at 30 MHz and 3,600 watts at 50 MHz. Hot-switching protection is provided and unused antenna inputs are automatically grounded for surge suppression. Relay water intrusion protection is at the IP53 level. These remote switches will tolerate a very wide temperature range and operate on a control voltage range of 24 to 31 VDC, as supplied by the 2000S Automatic Antenna Selector.

The included 2000S Automatic Antenna Selector, as shipped in the ASW-120 package by DX Engineering, has a power cord terminated with a NEMA 5-15P plug for 120 AC. No additional power supply is required. The system uses a 4 bit BCD selector signal and incorporates a feedback signal to the controller. Connection of the 2000S Selector to the 2000SW Switch requires a minimum of a 7-conductor shielded control cable of AWG-24 (CAT5e) which is sufficient to about 165 feet. A longer control cable will require a larger wire gauge. Connectors included require soldering. Also included are a 3-meter length of 7-conductor control cable and 1 interface cable for connecting the controller to the ACOM 2000 amplifier.

Here are the Specifications of the ACOM ASW-120 Remote Antenna Switch and Selector Sets:

* Operating Frequency: 0 to 60 MHz.
* 10x UHF female (SO-239) PTFE connectors
* Power Handling vs. SWR: 0 to 30 MHz: 5000W at 1:1; up to 2500W at 2:1; up to 1600W at 3:1
* Power Handling vs. SWR: up to 60 MHz: 3600W at 1:1; up to 1800W at 2:1; up to 1200W at 3:1
* Mismatch VSWR: for 0 to 1.8 MHz better than 1.02:1; 1.8 to 30 MHz better than 1.08:1; 30 to 60 MHz better than 1.20:1
* Crosstalk isolation: for 0 to 1.8 MHz-better than -100dB; 1.8 to 30 MHz -better than -70dB; 30 to 60 MHz better than -66dB
* Relay Changeover Time: Less than 150 milliseconds including any relay chatter
* Operating temperature range: minus 30 to plus 60 degrees C
* Water Intrusion: IP53
* Power Supply: 120 VAC, NEMA 5-15P three-prong power plug (USA)
* Total shipping weight 6kg (products 4kg)

NOTE: This Acom ASW-120 Remote Antenna Switch and Selector Set is available from DX Engineering ONLY as a 120 VAC system. The internal selection is pre-switched to 120 VAC and the power cord is pre-wired with a NEMA 5-15P three-prong grounded plug, as a convenience for our North American customers. This negates mention in the 2000S Manual of "Normally the unit is supplied with Voltage Selector set for…240 V." This is not the case of the ASW-120 purchased from DX Engineering, therefore is not necessary to "…contact the dealer for details…" The 120 VAC selection has been made in advance for every ASW-120 set. The "Documentation" tab provides links to each unit's manual which include additional product information that is useful.

For a remote antenna switch and controller of excellent design, order ACOM ASW-120 Remote Antenna Switch and Selector Sets from DX Engineering!

Documentation