ICOM-720-A MOD FOR AMTOR AS RELEASED BY THANET OBTAINED FROM ADVANCED ELECTRONIC APPLICATIONS. (KA0VXO)
THIS MOD CHANGES TX-RX AND RX-TX TIMING FROM 55MS TO 10MS.
--ON MAIN BOARD--
CHANGE C40,42,43 AND 54 TO .1UF
CHANGE C69 TO .01UF

ABOVE CAPS ARE POLARIZED

---ON IF BOARD---
C87 CHANGE TO 2.2UF (NOT POLARIZED)

---ON RF BOARD---
REMOVE C169, AND C167
  NOTE:THE AEA INFO HAS A TYPO ERROR, AS IT SHOWS TO REMOVE C127 RATHER THAN C167, C127 IS NOT ON THE BOARD. DO REMOVE C167
CHANGE C165 TO .68UF POLARIZED
WHILE ON THIS BOARD CHECK FOR NOISE BLANKER UPDATE.
C116 .47UF SHOULD BE 10UF POLARIZED
C171 .01UF SHOULD BE .1UF(NOT POLARIZED)
NOISE BLANKER UPDATE IMPROVES WOODPECKER REJECTION.
ON 24 PIN ACCESSORY PLUG:
#3 IS PTT
#4 IS RX AUDIO OUT
#5 IS MIC INPUT
#8 IS GROUND
YOUR AMTOR SHOULD BE CONNECTED TOTHE ABOVE PINS  
GOOD LUCK FROM
 DAN K5KQG
P.O. BOX 2801
SHERMAN,TX 75091