HISTORY:
Working through the boxes of electronic spare parts I have gathered together over the years, originally this microphone was partnered with the Motorola GM300 UHF transceiver which I have advertised separately HERE
Good solid microphone with can also be used with other Motorola radio equipment (you must establish compatibility yourself)
Here's the rub ....
While it looks, feels, build quality for all the world looks like a quality commercial grade Motorola product, I am not so sure it is actually genuine Motorola.
Why?
Nowhere on the body or within is there any indication this is Motorola product. There are however two recessed areas where it appears a label may once have been, these being on the rear and front top edge. Motorola loved screen printing their logo or name on the metal parts of their microphones (this is an old mic after all) or direct printing to the high impact plastic body - they tended not to use "stickers" to identify their microphones.
On this microphone there is no such direct printing, in fact there is no printing at all.
The well made PCB inside the housing does have part numbers on a sticker but I cannot match these up with any Motorola product. See below for details of those numbers on the label.
Interesting though, the 4x screws securing the two mic body parts together use the same type of screw as the Motorola GM300 - you need a special driver to undo these.
That said though, this is a very nice "feeling" microphone and built to last when used "in the field"
UNIDENTIFIED MANUFACTURER - Transceiver Microphone
Model: Unknown
Microphone insert: Condenser (NOT a dynamic mic)
Estimated year of release is the late 1990's ~ early 2000's
Previously used with the Motorola GM300 I am also seeking a new home for
Rugged high impact body construction
Removable front chromed METAL (NOT pretend metal painted onto plastic!) grille
Good curly cord entry point security
Nice PTT switch arrangement - spring loaded mechanical arm which activates the PCB microswitch
PCB is a high quality product, as are the interconnect plugs/sockets
HERE are the product code numbers on the ID label on the PCB
1HZHABZT002
SM11R
1300SN11R0010
Condenser element (Electret) in the centre of the microphone
Curly cord (5.2mm diameter) is in great shape
Terminated with an RJ-45 plug.
Nice "feel" which comfortably fits into the hand and not heavy
Easy to operate PTT side button
Metal clip ring on the rear is included
WEIGHT: 150g
COSMETIC CONDITION:
USED
CLEAN
NO physical damage at all
NO substantial marks or scratches on the body, only very light wear
Push-To-Talk side button operates easily and smoothly
Curly cord has NO nicks or sheath damage and the coils all have integrity, meaning that the curly cord has not been unduly stretched in the past.
RJ45 boot is intact and undamaged
TESTING:
Tested this microphone (Both PTT electrically and speech audio) using DC resistance testing of the switch and an audio amp with a suitable mic input - no problems at all.
I couldn't use the Motorola GM300 for these tests due to that unit not having any programming, yet.
I have now placed this microphone into a sealed clear plastic pack, awaiting a new owner.
