[bars] Motorola R2001DHS

Tue Jun 10 13:59:45 CDT 2025

You can also try

Cal-Tek in Billerica

https://repaircalibration.com/contact/

I don’t know if they do this particular piece of equipment or not, but call them.

I have had some vintage’ish  HP gear calibrated here.

73 de ws1m

bammi

From: bars <bars-bounces at w1hh.org> On Behalf Of Leandra MacLennan via bars
Sent: Tuesday, June 10, 2025 2:51 PM
To: Tim K1DC <k1dc.radio at gmail.com>
Cc: bars at w1hh.org
Subject: Re: [bars] Motorola R2001DHS

Essco is where we had all of the company test equipment calibrated. They are near the Billerica area so you can drop it off. 

Www.Esscolab.com <http://Www.Esscolab.com> 

Contact them first to get a quote and set up an appointment date for the calibration.

-Leandra AF1R 

On Jun 10, 2025, at 9:03 AM, Tim - K1DC via bars <bars at w1hh.org <mailto:bars at w1hh.org> > wrote:

Whoa!!!  That's one fine piece of kit!

T.

On 6/10/2025 11:24, Juan Jiménez via bars wrote:

https://wiki.w9cr.net/index.php/Motorola_R2001D

On Sunday I drove down to PA to pick up a Motorola R2001DHS (an R2001D with the high stability oscillator option).

Wow. This thing is the most complete piece of radio test equipment I have ever been able to find (and afford), even if it was made in the 1980's. It was worth the 14 hour drive there and back, and the reminder than all of Central PA smells like manure this time of the year. It makes the Swiss Army Knife look like something that came out of a box of Cracker Jacks.

*	Spectrum Analyzer
*	Duplex Generator
*	Modulation Oscilloscope
*	Frequency Counter
*	AC/DC Digital Voltmeter
*	RF Wattmeter/Signal-Level Meter
*	General Purpose Oscilloscope
*	Multimode Code Synthesizer
*	Distortion/SINAD Meter
*	Sweep Generator
*	DTMF Encode/Decode
*	Printer Port

I missed the auction for the one with the coffee maker option. 😆

Frequency range is 10 kHz to 999.9999 MHz with a resolution of 100 Hz. Output in 50 ohms is 0.1 uV to 1 Vrms on FM and 0.1 uV to 0.4 Vrms on AM.

The monitor mode measures frequency from 1 MHz to 999.9999 MHz. The auto-ranging CRT display has a resolution of 10 Hz for frequency error. Input sensitivity is 1.5 uV for 10 dB EIA SINAD. The spectrum analyzer has a 75 dBm dynamic range.

Anybody know anyone who works on calibrating these? The service manual is straightforward (and hefty) but I don't have the additional equipment to do the calibrations.

And no, this one is not going to Ukraine unless I find a sponsor with deep pockets who wants to buy it for them. Too expensive for that, way out of my meager charity budget...

73, 

K1CPR

Juan

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