Diarcy Technologies -- Frequency Standards and Sources, Cellular Test Receivers, Data Recorders, Specialty RF

Diarcy Technologies is pleased to announce our line of Frequency Sources and Frequency Standards. All electronic products require precise control of parameters to operate properly. These Frequency Sources and Frequency Standards maintain a high degree of frequency accuracy and stability at a reasonable cost. These products can increase the frequency accuracy 5000x aided by the timing accuracies available from the GPS satellite system. Just tell us what frequency output you need. We can usually set it to within 0.1 Hz of your needs, while maintaining that accuracy to a few parts per billion (PPB) stability. Internal oscillators used in commercial test equipment, while usually very stable, are only accurate to 25 PPM (parts per million) or about 250 Hz error for a 10 MHz frequency reference. One PPB (part per billion) at 10 MHz is 0.01 Hz — how good is the frequency reference you’re using now?

These Frequency Sources and Frequency Standards can be used as Calibration Standards, Laboratory Signal Generators, as Synchronization Sources, Cellular Base Station References, Phased-locked loop reference signals, and more. The frequency can be tailored to your needs, typically to within 0.1 Hz of your desired frequency. Frequency Stabilities are on the order of 5 ppb (parts per billion) or less after just a few minutes warm-up time.

Standard frequency output is 10 MHz sine wave at 0 dBm into a 50 Ω load, but the frequency can be set in the range of 4 MHz to 35 MHz. Frequency accuracy is controlled in one of two modes: (1) as a constantly calibrating Frequency Standard using an external GPS antenna; or (2) as a stand-alone, GPS calibrated source.

Application Note

This application note gives a detailed description on how our Frequency Sources work. NEW
AN-1104: GPS Disciplined Sources: HTML PDF

GPS Disciplined Frequency Sources

Output frequency is set to your specifications within the range of 4 MHz to 35 MHz. These sources are constantly being updated based on GPS timing signals. Cold start accuracy typically better than 1 ppm and will quickly settle to within tens of ppb's in just a few minutes. For best accuracy, GPS signals should be active for at least 30 minutes. Once unit is calibrated, it will continue to make corrections throughout the day. If GPS signal is removed after this initial calibration, unit will continue to hold frequency accuracy to within 10 ppb per day, typically much better depending on environmental conditions. Unit is available with a single front-mounted output or multiple (three or five) rear-mounted outputs. Each output's amplitude can be set at time of manufacture to match test equipment reference signal requirements.

10 MHz Frequency Standard, GPS Disciplined

DS-1000 -- Low-cost 10 MHz Frequency Standard, GPS Disciplined    from $1095: BUY NOW
DS-1000 Specifications:     HTML         PDF
Installation and User's Guide:     PDF
Three Standard Configurations available. Can be customized to your specifications.

Frequency Standard (4 MHz to 35 MHz), GPS Disciplined

DS-2000 -- Low-cost Frequency Standard, GPS Disciplined    from $1395: BUY NOW
DS-2000 Specifications:     HTML         PDF
Installation and User's Guide:     PDF
Three Standard Configurations available. Can be customized to your specifications.

Highly-Stable Frequency Sources, Bench-calibrated to GPS Accuracy

Output frequency is set to your specifications within the range of 4 MHz to 35 MHz. These sources are bench calibration at time of manufacture using GPS timing signals. Cold start accuracy typically better than 1 ppm and will quickly settle to within tens of ppb's in just a few minutes. Unit is available with a single front-mounted output or multiple (three or five) rear-mounted outputs. Each output's amplitude can be set at time of manufacture.

10 MHz Frequency Standard, GPS Calibrated

FR-1000 -- Low-cost 10 MHz Frequency Standard, GPS Calibrated    from $995: BUY NOW
FR-1000 Specifications:     HTML         PDF
Installation and User's Guide:     PDF
Three Standard Configurations available. Can be customized to your specifications.

Frequency Standard (4 MHz to 35 MHz), GPS Calibrated

FR-2000 -- Low-cost Frequency Standard, GPS Calibrated    from $1295: BUY NOW
FR-2000 Specifications:     HTML         PDF
Installation and User's Guide:     PDF
Three Standard Configurations available. Can be customized to your specifications.