How to decode Yaesu serial numbers and know exactly when your Yaesu radio was manufactured
serial number of 9J271567
Position 1 = year made
Position 2 = month made
C = January
D = February
E = March
F = April
G = May
H = June
I = July
J = August
K = September
L = October
M = November
N = December
Position 3 and 4 = lot number(s)
Position 5 to 8 sequence in that lot
Position 1: last digit of the year in which the radio was produced
Position 2: Determine the position of the letter in the alphabet (C=3,D=4,E=5, etc)
then subtract 2.
The result gives the month in which the radio was manufactured.
Note that the letters will range from C (January) through N (December).
Thus, my FT-817 radio with a serial number of 9J271567 would have been manufactured in 2009 (9), during the month of August (J, August is the 8th month), was part of lot 27, and was the 1567th radio in that lot.
ve3ips 
How do I see the difference for 2004 and 2014
LikeLike
Excellent *****A*****
LikeLike
Reblogged this on Ham Radio By John Allsopp G4YDM and commented:
Hope this is useful to you. 73 de John G4YDM
LikeLike
A friend has a strange Serial Number on his FRG-7 Unit, (Grey Case), being: 150G 300374. Does anyone know the year of manufacture from this Serial Number?
LikeLike
I bought my FRG-7 back in the 1970s. I remember it was like $300 or so which was the price almost of a car. It was based on the brilliant Barlow Wadley loop design. However, who knows what the serial number code was but its a great radio and I really liked the ability to put batteries in it and use it in a tent in the field.
LikeLike
how do you tell the difference between 2002 and 2012 or 2007 and 2017???
LikeLike
The ND came out in 2005 which has a display that can be configured as orange or blue. That may help
LikeLike
Thanks for the marvelous posting! I definitely enjoyed reading it, you happen to
be a great author.I will remember to bookmark your blog and
will often come back down the road. I want
to encourage you continue your great posts, have a nice day!
LikeLike
How do you tell the date of a FT857D, they came out in 2004 but now in 2017/18/19 you can still but one. So my serial number is 4 I that is a letter i 700342 that make my radio 2004,July but I bought it new in January 2015, so that makes no sense.
LikeLike
I dont know that as I sold mine
LikeLike
It is called “New Old Stock “
LikeLike
Radio from 04 would have a low lot #. Radio from 14 would have higher lot # than one from 04.
LikeLike
My 857D from 2010 has a lot # of 26 so one from 14 would be higher i.e. 70.
LikeLike
I HAVE A YAESU FT-8900R WITH A SERIAL # 4E760721. I WAS ADVISED BY A YAESU REPAIR SHOP THAT THIS WAS NOT A VALID SERIAL # AND THAT THIS RADIO IS A COUNTERFEIT.
LikeLike
There has been Fake 8900 floating around do you have the official box and warranty card?
LikeLike
Hi OM I have a FT-920 with the serial number 3J690045 and it will be like it was made i august 2003 I think it is right, mine was one of the last on made.
LikeLike
A really nice contest radio on a budget but No I have no idea.
LikeLike