10 Meter Mobile Radios	DX99	DX88	DX-77	DX-73	DX-66	DX-55	DX-44	DX33
Frequency Counter (with "ON/OFF" switch)	YES	YES	---	YES	YES	YES	---	---
Pre-wired for FC 347 Frequency Counter	---	---	YES	---	---	---	YES	YES
Dimmer Control	variable	---	---	variable	variable	variable	2-stage	---
Meter Size	LARGE	small	small	LARGE	LARGE	LARGE	small	small
SWR Scale	---	---	---	YES	---	---	---	---
Red/Green Transmit LED	---	YES	YES	---	---	---	YES	YES
Meter glows red during Transmit	YES	---	---	YES	YES	YES	---	---
Roger Beep (with "ON/OFF" switch)	YES	YES	YES	YES	YES	YES	YES	---
Noise Blanker/ Automatic Noise Limiter	YES	YES	YES	YES	YES	YES	YES	YES
PA Features:	99	88	77	73	66	55	44	33
Echo Board with Dual Controls	YES	YES	YES	YES	YES	---	YES	YES
Voice Changer with Pitch Control	YES	---	---	YES	---	---	---	---
Robot Sound (four-position)	---	---	---	YES	---	---	---	---
Robot Sound (one-position)	YES	---	---	---	---	---	---	---
Talk Back "ON" during Echo, VC or Robot	YES	YES	YES	switched	YES	---	YES	YES
Talk Back "ON/OFF" Switch	---	---	---	YES	---	---	---	---
	99	88	77	73	66	55	44	33
SSB in addition to AM/FM/PA	YES	YES	YES	---	---	---	---	---
Number of Output Levels	variable	2	3	variable	variable	variable	variable	3
Maximum Power Output - AM	10	10	10	8	8	8	8	8
Maximum Power Output - SSB	25	25	25	---	---	---	---	---
1.5 KHz Clarifier for Receive Only	YES	YES	YES	---	---	---	---	---
5.0 KHz Clarifier for Receive and Transmit	YES	YES	YES	YES	YES	YES	---	---
TWO YEAR Limited Parts and Labor Warranty	YES	YES	YES	YES	YES	YES	YES	YES
	DX99	DX88	DX77	DX73	DX66	DX55	DX44	DX33