The “A” had the handle on the front of the unit, you have to be real tall or have short arms to carry it and not break the legs off. Also the A had a position switch to dial up or down the freq, fast or slow. The later (C,D maybe) models had a VFO style with a small knob to help you dial. The carrying handle was moved to the long side also. I think the B,C,D all look the same. You can use the sweep and spectrum feature of the A to look at the pass of a can but it leave allot to be desired. I used to just use a separate generator to create a signal and then viewed my tuning results with the R2001 spectrum.
73 Don W5DK >From: ks4ec <[EMAIL PROTECTED] <mailto:robp%40JFCSOnline.com> > >Date: 2008/03/13 Thu PM 06:55:06 CDT >To: [email protected] ><mailto:Repeater-Builder%40yahoogroups.com> >Subject: [Repeater-Builder] R2001 Service monitor question > >Sorry if this is a little off topic. > >I have located what appears to be a Motorola R2001 service monitor, >although there is no model number sticker on it. > >I identified it by the pics on the net. > >Does anyone know what the difference between the A-B-C and D versions >is. and can you tell by looking at it. > >Also everything I see on the net says this has a sweep generator, some >say this is used for tuning duplexors. > >I have heard of both a sweep generator and a tracking generator. I >know you use a tracking generator but is a sweep generator the same >thing just a different name? > >Thanks in advance - Rob > >
