Doug, The number 19C327927G2 positively identifies your unit as a VHF high-band panel, designed for the 152 MHz mobile telephone channels. The RF Detector Module actually contains four stripline directional couplers; two are used to detect forward and reverse power for the transmitter controls, and the other two are used only to drive the front-panel wattmeter. These panels are normally delivered set to operate on -48 VDC (the standard telephone central office voltage), but can optionally be set for -24 VDC. Some re-design will be necessary to convert the panel to operate properly at 12-14 VDC. Nevertheless, it should be fine at 2m with only calibration of the wattmeter being needed. Dunno how useful it would be on a Mastr II repeater, which already has forward and reverse power controls.
73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Doug Sent: Monday, June 08, 2009 7:47 PM To: [email protected] Subject: RE: [Repeater-Builder] 19D424984 G1 Tx Monitor panel At 07:28 PM 08/06/2009, you wrote: >Doug, > >If your panel has only one RF Detector Module, then it definitely is not the >low-band unit- which has two modules in series. What part number is stamped >on the module in your unit? > >73, Eric Lemmon WB6FLY > ----------- It has only one rf unit, but on the circuit board, there are two directional couplers. Rather unique. The only number on the detector sub assembly (a little metal box ) is PL19C327927G2. I think this is the part number for the box only. It has a five wire cable with a molex connector that goes to the cct board. Should get some interesting conversations at a swap meet with it... Never worked on the IMTS, just the old MTS using COT6 units. IMTS came after I moved on along with the solid state stuff... I hope this answers your question Eric.. 73 Doug VE5DA
