XCOM	Microair	Filser ATR500	Dittel	Becker 4201
Features
Price Rec	$1395 AU$	$1295 AU$	$1295 US$	$1595 US$	$1495 US$
Intercom	Full VOX Intercom	Hot Mike	Yes	No	Hot Mike
Music Input	Yes	No	No	No	No
Dual Watch (Monitor both active and standby)	Yes	No	No	No	No
Individual PTT Switching	Yes	No	No	No	No
Digital Controls	Yes	No	No	No	No
Adjustable Squelch Thresholds	Yes	Yes	Yes	No	No
Memory Channels	99 Alpha / Numeric	25	9	?	99
Voltage Monitoring	Yes	No	No	No	Yes
Internet Software Upgrades	Yes	No	No	No	Yes
Backlight LCD	Yes	Yes	Yes	Yes	Yes
Backlight Controls	Yes	No	No	No	No
Memory Channel Scanning	Yes	Yes	?	?	?
Display	2 line Alpha/Numerical	2 line numerical	2 line numerical	1 line numerical	2 line numerical
Remote Head Unit available	Yes	No	No	No	Yes
Remote Control Unit available	Yes	No	No	No	No
Transmit Power
Power Output Carrier	6w	3.5w	4w	5w	5w
Power Output PEP	+20w pep	12w pep	?w pep	18w pep	16w pep
Dimensions
Dimensions Width	61	65	57	61	61
Dimensions Height	61	59	57	63	61
Dimensions Length (without connector)	128	135	160	210	192
Dimensions Length (with connector)	148	170	190	240	229
Connector DB 15 supplied	Yes	Yes	-	-	-
Weight	403 grams	423 grams	700 grams	800 grams	670 grams
Frequency
Receive VOR Channels (Audio only NO Nav)	108.000 – 117.875	No	No	No	No
Airband Frequency Range	118.000-136.975	118.000-136.975	118.000-136.975	118.000-136.975	118.000-136.975
Extended Receive FM	137.000 - 163.000	No	No	No	No
CAP, MARS, 2m Receive	140.000 - 144.000	No	No	No	No
NOAA Weather Channels	Yes	No	No	No	No
Frequency Channels	2200	760	760	760	760
Channel Spacing	25 kHz	25 kHz	25 kHz	25 kHz	25 kHz
Power Supply
Supply Voltage	8.0V-17V	13.8V-16.0V	10.5V-16V	?	12.4V-15.1V
Minimum Voltage	10.0V	10.5V	10.0V	?	10.0V
Standby Current	<70mA	87mA	150mA	<30mA	<70mA
Transmit Current	2.2A	1.2A	1.8A	<2.3A	<2.5A
Stuck Mike Timer	Yes	No	?	?	?

Please note: Every effort is made to make this comparison as accurate as possible including emailing the individual manufacturers and asking them to check for any errors. If you find something which you believe to be incorrect please contact me directly through this link