At 12:33 PM 09/02/08, you wrote: >Are there any guidelines as to what level from the receiver to the >TS-64 should >be used?? The out put of the receiver is set for one volt with a 3khz deviated >signal and for my part seems to be a bit high for the lp/hp filter op amps. In >my case, when observed with a scope, the signal out of the rx at pin >11 is nice >and clean as it is going into the lp filter section on the TS-64. >Coming out of >the TS-64 hp filter, it is distorted and noisy. With the levels left >the way they >were, the unit could be made to take off at a low frequency and high >amplitude. >Also, there appears to be a hf signal coming out at all times with an >amplitude of >about 105mvs. For some reason I can't seem to sync it in with the >scope.(grass!) > >If I reduce the level out of rx to the point where it does not take >off, and most >of the distortion disappears, I still have the steady "grass" >somewhat diminished >in amplitude. The grass is removed by the input circuit of the MRC100 >controller >and the audio to the first op amp is clean. The distortion is as heard on the >MSTRII speaker. I won't know what it sounds like coming out of the controller >until I get it operational. (blown op amp) > >I did patch the TS-64 out and the repeater works just fine. The TS-64 >also functions >the way it is supposed to when in the radio. The squelch works with >the reduced receiver >level and the grass does not seem to bother it. > >What is the recommended input level that should be set for the TS-64. >Has any one else >seen this behavior. > >Thanks and 73 > >Doug VE5DA
The TS-64 data sheet (at <http://www.repeater-builder.com/com-spec/com-spec-ts64inst.pdf>) says "15mv minimum" and that the input is "60K Ohms AC coupled". In your shoes I'd call Com Spec at 800-854-0547 between 8a and 4:30p Pacific Time and describe the situation. Spence is good people and he'll help. Mike WA6ILQ
