EXCITER Indentification help, please.
Posted: Sun Apr 02, 2006 11:54 am
Hello All,
I am new to the group, and I am seeking information about a module I picked up a year or so ago on ebay. The following information is what I know about the module:
This is a slide-in module, approximately 12 inches deep, by 8 1/8 inches high, by 1 1/8 inches thick. There are two small Avery-type labels on the rear of the module, just above the ventilation hole pattern. The first label contains X134AB the second label contains 016. Someone has written in SHARPIE the following: CA02V78. At the bottom of the rear panel, there is an edge connector approximately 2 1/16 inches in length, with a registration slot starting 9/16ths of an inch from the upper edge of the edge connector. The rear aperture is roughly 2 and 9/26 inches in length, and 7/16 inches in width. There is a mini-UHF connector which faces up, protruding from a recessed shelf on the front panel. The front panel is black, with a label on the top finger-pull of EXCITER. There are four status LEDs, located in the middle 1/3 of the panel, labeled, from top to bottom, Tx Lock, PA Full, PA Low, PA Fail. The bottom 1/3 of the panel has a ventilation hole pattern similar to that on the rear panel.
With the cover removed (It is press-fit, with four oval holes- one each corner on the top and bottom lips, which pick up nubs on the main chassis), one can see a slightly-yellowed bar code sticker with the following nomenclature: TLF7070C41 CA02V78. There is also school-bus-yellow sticker with nomenclature: TLF7070D, which I suspect is some sort of firmware upgrade. The topology of the interior is as follows: At the front of the CCA (circuit card assembly) there are three perforated "can" assemblies, which are labeled from top to bottom E3100, E3101, and E3202. E3100 does not seem to have any components mounted within it. E3101 and E3202 seem to have small surface mount components- most likely either caps, inductors, or resistors, but nothing that looks like power transistors. There are four large "cans", with removable lids, the largest has a label on the CCA marked MICROPROCESSOR, the other can, of the same size is marked SYNTHESIZER, and the next smallest is unmarked. The smallest "can" is marked POWER CONTROL. Each can lid has a black plastic strap to be used to remove the lid.
One other piece of nomenclature is on the silkscreen, between the mini-UHF connector and the POWER CONTROL "can": GCI-2 ^ E where '^' is a white, filled-in triangle (Delta?).
SO, my main question is, what is it? What is the frequency range it can operate within? Are there documents/schematics that cover the connector assignments? Has anyone been able to adapt this unit to the ham bands? I bought it because it was inexpensive, and the seller said it was a 900MHz exciter. I figured it would make a nice transmitter side of a repeater. So, did I buy a paperweight, or what??
Thanks, in advance, for any assistance you may provide.
Shane[/b]
I am new to the group, and I am seeking information about a module I picked up a year or so ago on ebay. The following information is what I know about the module:
This is a slide-in module, approximately 12 inches deep, by 8 1/8 inches high, by 1 1/8 inches thick. There are two small Avery-type labels on the rear of the module, just above the ventilation hole pattern. The first label contains X134AB the second label contains 016. Someone has written in SHARPIE the following: CA02V78. At the bottom of the rear panel, there is an edge connector approximately 2 1/16 inches in length, with a registration slot starting 9/16ths of an inch from the upper edge of the edge connector. The rear aperture is roughly 2 and 9/26 inches in length, and 7/16 inches in width. There is a mini-UHF connector which faces up, protruding from a recessed shelf on the front panel. The front panel is black, with a label on the top finger-pull of EXCITER. There are four status LEDs, located in the middle 1/3 of the panel, labeled, from top to bottom, Tx Lock, PA Full, PA Low, PA Fail. The bottom 1/3 of the panel has a ventilation hole pattern similar to that on the rear panel.
With the cover removed (It is press-fit, with four oval holes- one each corner on the top and bottom lips, which pick up nubs on the main chassis), one can see a slightly-yellowed bar code sticker with the following nomenclature: TLF7070C41 CA02V78. There is also school-bus-yellow sticker with nomenclature: TLF7070D, which I suspect is some sort of firmware upgrade. The topology of the interior is as follows: At the front of the CCA (circuit card assembly) there are three perforated "can" assemblies, which are labeled from top to bottom E3100, E3101, and E3202. E3100 does not seem to have any components mounted within it. E3101 and E3202 seem to have small surface mount components- most likely either caps, inductors, or resistors, but nothing that looks like power transistors. There are four large "cans", with removable lids, the largest has a label on the CCA marked MICROPROCESSOR, the other can, of the same size is marked SYNTHESIZER, and the next smallest is unmarked. The smallest "can" is marked POWER CONTROL. Each can lid has a black plastic strap to be used to remove the lid.
One other piece of nomenclature is on the silkscreen, between the mini-UHF connector and the POWER CONTROL "can": GCI-2 ^ E where '^' is a white, filled-in triangle (Delta?).
SO, my main question is, what is it? What is the frequency range it can operate within? Are there documents/schematics that cover the connector assignments? Has anyone been able to adapt this unit to the ham bands? I bought it because it was inexpensive, and the seller said it was a 900MHz exciter. I figured it would make a nice transmitter side of a repeater. So, did I buy a paperweight, or what??
Thanks, in advance, for any assistance you may provide.
Shane[/b]