I recently wrote jeff deck of meducci, llc about a quality C-QuAM Monitor for my AM Station and this is his reply....
Note:This is good news for us AMS buff's
I recently wrote jeff deck of meducci, llc about a quality C-QuAM Monitor for my AM Station and this is his reply....
Note:This is good news for us AMS buff's
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Hi Bob,
Thank you for the interest in our Meduci
AMX-2000 product line. Also, thank you Amy
for the kind words!
Last year we developed prototype Meduci AM
stereo tuner for two Chicago AM stations that
included the following features:
* Motorola C-QuAM AM Stereo Decoder
* Frequency Input: 520 kHz to 1,710 kHz
* Antenna Input: BNC 50 ohms
* Balanced stereo audio outputs (left, right)
* 600-ohm +4bBu balanced audio output standard
* 12-volt D.C input via class-2 U.L. listed Power
* Rack-mounted 19" wide EIA enclosure (1 RU tall)
* Phase Locked Loop Synthesized Tuner
* Frequency Response: 25 Hz to 15,000 Hz (-6dB)
* Carrier Sense / Carrier Loss Alarm
* "Adjustable Carrier Sense" (adjustable threshold)
* Good flat envelope distortion free bandwidth
* High Stability
* Quartz Crystal-Controlled Local oscillator
* Internal DIP Switch Station Selection (8 bits)
* 10kHz (Canada, Americas) or 9kHz Frequency Plan
* Instrumentation-grade low slew rate audio amplifiers
* Low Harmonic Distortion (under 1%)
* Full steel chassis for maximum RF shielding and durability
* Can be operated in high RF field environments
Our newest tuner has all of the above features,
as well as the following additional new features:
* 10kHz Notch Filter
* AMAX Stereo
* Effective Noise Blanker
* Switchable Wide / Narrow Audio Bandwidth
* NRSC-1 75uS audio de-emphasis network
Balanced audio outputs with XLR male
connectors provide uncompromising audio
performance for critical listening applications
with compatible audio components.
Each tuner is frequency agile, with
drift-free crystal phase lock loop accuracy
(down to better than 100 ppm stability).
Each tuner is set to the station's frequency,
based upon internal DIP switch selection.
Loss-of-carrier signal sense (open collector)
is also standard, to interface to user-supplied
alarm device. Each tuner can be mounted
to standard EIA 19" relay rack. Antenna input is
50 ohm BNC connection. Purchaser can also
specify either XLR, Euroblock, or 1/4" TRS audio
outputs.
Designed as a general purpose off-air AM monitor
demodulator grade receiver for EAS or other critical
applications.
Each tuner is $325 plus postage. There is
an approximate four-week manufacturing lead time.
Sincerely,
Meduci, LLC
Jeff Deck
http://Meduci.com