FT-847, uni-directional or be-directional version?
Hello, Does somebody know whether one can recognize by the serial number of the FT-847 whether it is an old, uni-directional or a newer, bi-directional vrsion? A user here in Germany has two FT-847 with serial numbers 3M840064 and OE320084.
73s, Erich, DK1TB
From a prior posting:
Subject: RE: [amsat-bb] FT-847 serial number investigation From: "Alan P. Biddle" APBIDDLE@xxxxxxx Date: Sun, 2 Dec 2001 19:27:04 -0000 In-Reply-To: Pine.GSO.3.95.1011202104753.12708C-100000@oso.slonet.org
Cliff,
From a FAQ on the FT-847. Perhaps this will help.
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Serial Numbers
Updated 10Jan01
Yaesu appears to use the following format for serial numbers on their amateur products:
Year of manufacture-Month of manufacture-Production Run-Individual Unit number, where the month of manufacture is offset by 2, so "C" means January, "D" means February, "E" means March, and so forth.
Example: 8G051234 = 1998, May (fifth month, or "G"), Production Run 05, unit #1234 in this run.
One key serial number range is 8G05. This seems to be the point at which Yaesu had corrected the bi-directional CAT issue and made some other improvements. This version was made in May 1998. Later serial numbers (e.g., 8L09nnnn) all seem to have incorporated the earlier improvements plus new ones.
73, K7TRK
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Erich Eichmann Sent: Tuesday, March 6, 2018 7:37 AM To: AMSAT-BB@amsat.org Subject: [amsat-bb] FT-847, uni-directional or be-directional version?
Hello, Does somebody know whether one can recognize by the serial number of the FT-847 whether it is an old, uni-directional or a newer, bi-directional vrsion? A user here in Germany has two FT-847 with serial numbers 3M840064 and OE320084.
73s, Erich, DK1TB
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You can't tell reliably by just looking at the serial number. My FT-847 has an "old" serial number and originally had the unidirectional firmware, but when I sent it to Yaesu for servicing (early in its life) they updated the firmware to the bidirectional capability. Unfortunately, I am almost certain that they no longer offer that service.
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On Tue, Mar 6, 2018 at 9:37 AM, Erich Eichmann erich.eichmann@t-online.de wrote:
Hello, Does somebody know whether one can recognize by the serial number of the FT-847 whether it is an old, uni-directional or a newer, bi-directional vrsion? A user here in Germany has two FT-847 with serial numbers 3M840064 and OE320084.
73s, Erich, DK1TB
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
participants (3)
-
Erich Eichmann -
Ted Krempa -
tosca005 University of Minnesota