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COM-3 Communications Service Monitor The COM-3 is used around the world for testing two-way radios and pagers! It is easier to set up and use than competitive units. It is small and light, weighing under 18 lbs with the battery pack installed (fully portable!). And it's priced to let you equip every one of your technicians. Here is the techical blurb from the Ramsey Electronics catalogue: ✔ 100 KHz - 1 GHz. Covers All Pager and 2-Way frequencies ✔ AM & FM Internal/External Modulation ✔ Direct Numeric Frequency Entry ✔ Digital Modulation Input Compatible with all Pager Formats Frequency Range: 100 KHz to 999.9995 MHz; Continuous tuning, no decade boundaries. Accuracy: ±0.0001% (1.0 ppm) 0 - 50º C (higher accuracy timebases available) Sensitivity: Less than 5 μV (typically less than 2 μV) FM Deviation: Two ranges... ±1.5 KHz, ±7 KHz Carrier Frequency: Two ranges... ±1.5 KHz, ±7 KHz RF Output: 0.1 μV to 10 mV in 5 ranges ±2.0 dB FM Modulation: Peak Deviation 0 - 15 KHz; Bandwidth 10 Hz to 10 KHz AM Modulation: Depth 0 - 99%. Bandwidth 10 Hz to 10 KHz Internal Modulation: Synthesized audio tones 10 - 1000 Hz in 0.1 Hz Steps, plus 1 KHz Sinewave Power Protection: Automatically switches to external jack if reverse power detected Frequency Counter: Two ranges; RF: 10 MHz - 999.999 MHz (1 KHz resolution), Audio: 10 Hz - 1 KHz (0.1 Hz resolution) Controls: Flat, fully sealed, membrane switch panel Display: Bright, seven digit LED (0.4†tall) Integrated Testing: Battery with Recharging System and Audio Monitoring Speaker Built-In Connectors: Antenna (supplied), Signal Generator Output, Monitor Audio Output (Scope), Modulation (In and Out), Digital Pager Input/Demod Output, External (Safety) Load Dimensions: 12†x 5.5†x 16†(W x H x D) Weight: Less than 18 lbs. (including built-in battery pack) PERFORMS THE TESTS YOU DO MOST Measure deviation and frequency error with an easy to read bargraph display. Encode and decode CTCSS. Built in frequency counter can determine and display the exact operating frequency and CTS tone in seconds! No guessing! DIRECT ACCESS FUNCTION SELECTIONS No fumbling with complex, shifted-key functions or embedded layers of "soft keys". The direct entry keys are logically grouped, on a sealed membrane front panel, and directly accessed with a single keystroke. If your shop does just paging, consider one of our dedicated paging test sets, the PPTS and APTS. But if you service both two way radios and paging, the COM-3 can be combined with paging accessory devices shown on page 8 to handle both. And don’t forget the optional 0.1 ppm timebase; a must for 900 MHz paging applications (please look at our rules and privacy policy) |
f_foster@machine--tools.com (Fern Foster) for additional information. This email is used for forwarding to newsgroup user.
