Below is information on discontinued and obsolete models by support status. Links are provided for replacement models, product operating manuals and datasheets if available.
Contact tech support for troubleshooting assistance and repair services for products available with full or limited support.
1800 Series Auto Changeover Distribution Units
6688/6689 High Stability Frequency Standard
On December 23, 2016, an agreement was reached between Altaria Services and Spectracom Corporation for the rights to products marketed under the Pendulum brand.
Please visit the Pendulum Instruments website for current information about this product.