ACM Series

ACM Series, Antenna & Cable Monitors are the solution for monitoring your transmission antenna systems. Service providers and self maintained end user’s can rely on this monitor and alarm to keep their critical sites up and running. Designed to detect antenna and cable faults that transmitter-internal VSWR monitors may not detect, it also provides accurate in-line power measurement functionality.

Models available from 136-225 MHz, 225-520 MHz, 470-960 MHz, 960-2400 MHz Accurately monitors your antenna and cable system VSWR levels.
Integral coupler with high directivity optimizes measurement accuracy. Measures small changes in antenna VSWR with high feeder and interface losses.
Provides alarms if an antenna or cable failure should occur.
Color display is clearly visible in direct sunlight.
Monitors transmitter output power and includes low or high power alarms.
Measures true average power of signals with high peak-to-average characteristics - works with any modulation!
Sample ports allow measurement of the forward and reflected signals without the need for system downtime ACM-SS15 Surge suppressor for 15-pin power and alarm connector, compatible with +11 to +26 VDC or ±36 to ± 72 VDC.
Included as standard Push-To-Talk (PTT) input to avoid false alarm triggering when the transmitter (radio) is not keyed.

Applications:
Includes 3G, AMPS., Broadcast, CHAM, CHAM 2000, DSC, EDGE, Government, GRIS, GUM, iden, Industrial, NYSSA, Microwave, Military, Paging, Public Safety, Rail, SMUR, TEMA, Tetrapolar, Trunking, UHF, Utilities, VHF, W-CHAM and WLL .

ACM Part Number Definition
Model/ Power Range (Watts)	Freq Range (MHz)	RF Input Conn.	RF Output Conn.	Monitor Port	Input Voltage
ACM = 2.5 - 100	L1 = 136 - 225	NM = N Male	NM = N Male	N = N Female	L= + (11 to 25) VDC
ACM 500 = 12.5 - 500	L2 = 225 - 520	NF = N Female	NF = N Female	T = TNC Female	H = ± (36 to 72) VDC
	M = 470 - 960	DM = 7/16 DIN Male	DM = 7/16 DIN Male	B = BNC Female
	H = 960 - 2400 *	DF = 7/16 DIN Female	DF = 7/16 DIN Female

* “H” Frequency Band Unavailable with the ACM 500 Version.

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product specifications:

Item No	ACM Series
Item Name	ACM Series, Antenna and Cable Monitors
Frequency Range	136-225 MHz 225-520 MHz 470-960 MHz 960-2400 Mhz
Measurement Range	ACM: 2.5 W to 100 W ACM 500: 12.5 W to 500 W
Power Accuracy	136-225 MHz, ± 10% 225-520 MHz, ± 8% 470-960 MHz, ± 5% 960-2400 MHz, ± 5%
Insertion Loss	0.1 dB (136 - 960 MHz) 0.15 dB (960 - 2400 MHz)
VSWR	1.07 (136 to 960 MHz) 1.1 (960 to 2400 MHz, N Connectors) 1.1 (960 to 2000 MHz, 7/16 Connectors) 1.2 (2000 to 2400 MHz, 7/16 Connectors)
Reflected Directivity	30 dB (136 to 960 MHz) 26 dB (960 to 2400 MHz)
Alarm Characteristics-VSWR	Alarm Set Point: 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5 to 1 Relay Contact Type: Dry, Form C, relay contacts, common, normally open, normally closed Contact Rating: 100 VDC @ 0.5A Visual Alarm: Red LED will illuminate to indicate alarm Stimulus: VSWR set point exceeded, response time proportional to overload Reset: Local Mechanical reset switch Remote input (Reset if VDC is 0 to +0.8 volts) Push to Talk: +5/+24 VDC to activate
Monitor Ports	Connectors: Female N, TNC or BNC Coupling: -63 dB approx., Subject to changes in full-scale power
Interface Port	Connector: Female DB-9, compatible with IBM PC AT serial port Protocol: Serial RS-232, 9600 baud, no parity, 8 data bits, 1 stop bit, no handshake
General	Thruline® sensor for direct insertion in 50-ohm line
RF Connectors	N or 7/16 DIN, see chart above
Maximum Line Section Power	Dependent on frequency and connector
Alarm--Power Connector	15-pin Female “D” connector
Temperature	Operating: 0 to 50°C Storage: -20 to 80°C
Humidity	0 to 95% (non-condensing) max.
Altitude	Up to 3000 meters above sea level
Passive Intermodulation Products	Less than -130 dBc
Power Requirements	+11 to +26 VDC or ±36 to ±72 VDC
Dimensions	4.75” (121 mm) wide (7.55” (192.mm) with connectors) 4.2” (107mm) high, 1.06“ (27mm) deep
Weight	Less than 2 lbs. (0.9 kg)
EMC	European Standard EN 61326-1:1997 + Addendums A1: 1998 and A2:2001 - Electrical equip. for measurement
Safety	European Standard EN 61010-1:2001 - Safety Requirements - Electrical equip. for measurement, control and laboratory use - ECM Requirements.

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accessories:

ACM-RACK
ACM Series Rack Kit

ACM-RACKU
ACM Series Rack Kit with Power Supply