[bars] Motorola R2001DHS

[Juan Jiménez]

Thank you! I called them but they say they don't do this particular piece
of equipment, which is strange, because on their web site they have a list
of RF-related equipment they can do, and this box checks almost every item
on their list. They didn't ask me if I have the service manual, so i guess
they must have more than enough work already to deal with something new. :)

73,
K1CPR
Juan


On Tue, Jun 10, 2025 at 3:03 PM Richard Heckbert <richard.heckbert at gmail.com>
wrote:

> Hi Juan,
>
>
>
> Congratulations on the new piece of kit.  Sounds like a great addition.
> Back when I was teaching electronics at a trade school, we would get all
> our equipment (that we couldn’t do ourselves) repaired and calibrated at
> Hayes Instruments in Billerica.  They’re located just south of Billerica
> Center on Boston Rd.  They were a great company to deal with then and
> looking at their website, it appears they do the kind of calibration you’re
> looking for
>
>
>
> https://hayesinstruments.com/
>
>
>
> Just another option for you
>
>
>
> Rick – W1OLU
>
>
>
> *From: *bars <bars-bounces at w1hh.org> on behalf of Juan Jiménez via bars <
> bars at w1hh.org>
> *Reply-To: *Juan Jiménez <k1cpr at bd5.com>
> *Date: *Tuesday, June 10, 2025 at 11:25 AM
> *To: *w1hh <bars at w1hh.org>, "mmra at groups.io" <mmra at groups.io>
> *Subject: *[bars] Motorola R2001DHS
>
>
>
> 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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