Features

• Ethernet Control Motorised Operation
•  +24 V DC Operating Voltage – mains
  adaptor is supplied
• Models from 6.58 to 500 GHz
  (WG15, WR112 to WM570, WR2.2)
• Full Waveguide Band Operation
• 0 to 60 dB Attenuation Range
• Attenuation Accuracy <0.1 dB or 1%
  (whichever is greater)
• 0 to 60 dB Cycle Speed <1 second

Applications

•  Automated Test Equipment (ATE)
• Testing millimetre-wave Point to Point Radios
• Bit error rate testing
•  Fade margin testing
• Transceiver diversity

The Series 625-03 Ethernet range of High Precision Programmable Attenuators utilise the proven rotary vane principle and Flann’s “Industry Standard” experience to offer very high performance at a competitive price.

This model is based on Flann’s highly respected Series 620/621 Rotary Attenuators, which offer high accuracy and high repeatability over the full attenuation range. In addition to the microwave performance expected of Flann, the Series 625-03 offers Ethernet control enabling connectivity from anywhere worldwide. The integrated touch screen display enables full manual operation where an Ethernet connection may not be available.

Repositioning time between 0 and 60 dB is less than one second.
Additional functionality features enable the instrument to be driven to higher attenuation values up to 90 dB.

Please note: The traditional CP2021 Control Processor is not required to drive the instrument.

 

Related Products

Series 620: Programmable Attenuator, GPIB/USB

Series 621: Programmable Attenuator with Manual Control, GPIB/USB, Drumscale Readout

 

Specifications

Model Number	Frequency Range (GHz)	Waveguide				VSWR (max)	Maximum Insertion Loss (dB)	Attenuation Accuracy (better than)	Maximum Power (W)
		WG	WM	R	WR
15625-03	6.58-10.0	15	-	84	112	1.15	0.25	Greater of 0.1 dB or 1% (up to 60 dB)	6
16625-03	8.20-12.5	16	-	100	90	1.15	0.25	Greater of 0.1 dB or 1% (up to 60 dB)	4
17625-03	9.84-15.00	17	-	120	75	1.15	0.25	Greater of 0.1 dB or 1% (up to 60 dB)	3
18625-03	11.9-18.00	18	-	140	62	1.15	0.3	Greater of 0.1 dB or 1% (up to 60 dB)	2
19625-03	14.5-22.0	19	-	180	51	1.15	0.4	Greater of 0.1 dB or 1% (up to 60 dB)	1.5
20625-03	17.6-26.7	20	-	220	42	1.15	0.6	Greater of 0.1 dB or 1% (up to 60 dB)	1.0
21625-03	21.7-33.0	21	-	260	34	1.15	0.8	Greater of 0.1 dB or 1% (up to 60 dB)	0.75
22625-03	26.4-40.1	22	-	320	28	1.15	0.9	Greater of 0.1 dB or 1% (up to 60 dB)	0.50
23625-03	33.0-50.1	23	-	400	22	1.15	1.0	Greater of 0.1 dB or 1% (up to 60 dB)	0.30
24625-03	39.3-59.7	24	-	500	19	1.15	1.0	Greater of 0.1 dB or 1% (up to 60 dB)	0.25
25625-03	49.9-75.8	25	-	620	15	1.15	1.0	Greater of 0.1 dB or 1% (up to 60 dB)	0.15
26625-03	60.5-92.0	26	-	740	12	1.15	1.3	Greater of 0.1 dB or 1% (up to 60 dB)	0.10
27625-03	73.8-112	27	-	900	10	1.15	1.5	Greater of 0.1 dB or 1% (up to 60 dB)	0.07
28625-03	92.3-140	28	-	1200	8	1.18	1.7	Greater of 0.1 dB or 1% (up to 60 dB)	0.05
29625-03	114-173	29	-	1400	6	1.18	1.9	Greater of 0.1 dB or 1.2% (up to 60 dB)	0.035
30625-03	145-220	30	-	1800	5	1.22	2.5	Greater of 0.15 dB or 1.5% (up to 50 dB)	0.020
31625-03	172-261	31	-	2200	4	1.30	3.0	Greater of 0.2 dB or 1.5% (up to 45 dB)	0.015
32625-03	217-330	32	-	2600	3	1.50	3.0	Greater of 0.2 dB or 1.5% (up to 45 dB)	0.010
710625-03	260-440	-	710	-	'2.8'	1.75	4.0	Greater of 0.3 dB or 2% (up to 35 dB)	0.007
570625-03	330-500	-	570	-	'2.2'	2.20	5.0	Greater of 0.4 dB or 2.5% (up to 30 dB)	0.005