FAQ for Telemetry: Click the "More" button to submit the frequently-asked question to our chatbot and obtain a more detailed answer.
How long do transmitters last?
The recording life of transmitters depends on the sample rate and battery size. The battery size affects their mass and, therefore, the animals for which they are suitable. Our device version tables specify operating life, shelf life, mass, and sample rate for each version. More
What is the smallest subcutaneous transmitter (SCT) you make?
The smallest SCT we make is the A3048P, which is 1.5 g and 0.85 ml. The A3048P2 provides a single biopotential input with passband 0.2-80 Hz sampled at 256 SPS and runs for 21 days. The mass of transmitters varies with the battery size. More
Are your transmitters rechargeable?
No, subcutaneous transmitters are not rechargeable. With care, they can be re-implanted. More
Can transmitters be turned on and off while implanted?
Yes, transmitters turn off and on with a magnetic switch, and you can turn them on and off even when they are implanted. When you order an OSI data acquisition system, we will send you a suitable magnet. Note that any magnet is capable of activating transmitters, so do not store transmitters near hard drives or other magnetic objects. More
Can I record from animals living together?
Yes, animals implanted with a transmitter can live in the same cage because their recording device is completely under their skin. The OSI system permits simultaneous and continuous recoding from groups of animals in a shared living space. More
How many antennas are needed to record from 16 mice in four of my cages?
Four antennas attached to a 4-Way Telemetry Control Box are sufficient to record continuously from 16 mice in four cages. Alternately, four Animal Location Trackers (ALT) could be used, one under each cage, to record biopotential signals and measure activity from all 16 animals. More
Does your telemetry system use Bluetooth?
No, our telemetry system does not use Bluetooth. Instead, it uses the 902-928 MHz band, which is an unlicensed ISM (Industrial, Scientific, Medical) band in the United States. Our telemetry system is real-time and continuous, which makes it more efficient than Bluetooth. More
Can I obtain prices without getting a quote?
Yes, our price list is on our website. If you have questions about the products you will need, send us an email and we will provide a parts list informal quotation. More
Can I export data from your acquisition system?
Yes, data can easily be exported in your file format of choice: EDF, NDF, BIN, and TXT. More
Will I need a Faraday Enclosure to operate the OSI data acquisition system?
Maybe, laboratories with thick walls or in rural areas may already be insulated from outside radio wave interference. Above-ground, urban laboratories are likely need a Faraday enclosure especially to isolate from cell tower transmissions. More
Can you record Cortical Spreading Depolarizations? That is: can you record down to true DC?
Yes, all our biopotential sensors can be configured to record down to true DC, exactly zero Hertz. More
What is "frequency response" and why is it important?
The frequency response is how the amplitude of the output signal varies with the input frequency. It is important because it shows the relationship between input and output amplitude across a range of frequencies. The transmitter you purchase has to be sensitive, or have a passband, for the frequency range you want to measure. Almost all biopotentials, with the exception of EMG (electromyogram), must be low-pass filtered before sampling in order to reduce aliasing distortion. Every transmitter we ship comes with a certified copy of that transmitters's frequency response, so you know you what you are recording from your animals. More
Can I change the sample rate after I receive my transmitters?
Only if you have purchased one of our programmable devices. Programmable devices include the A3054P Programmable Intraperitoneal Transmitters (IPT) and the A3041 Implantable Stimulator-Transponder (IST). Non-programmable devices provide longer battery life than programmable devices. More
What is an Event Classifier Library?
An Event Classifier Library is a study-specific, set of human labels of data segments that you have manually reviewed and sorted into specific categories such as "ictal", "grooming", and "baseline". Our Event Classifier program uses this library to classify new recording intervals. By this means, the Event Classifier can analyze tens of hundreds of days of raw data in a matter of hours. More
Can I both invoke and record cortical spreading depolarizations (CSDs) in an adult rat?
Yes, we have customers doing exactly this with an Implantable Stimulator-Transponder (IST), Implantable Light-Emitting Diode (ILED), and Subcutaneous Transmitter (SCT) deployed in an adult rat. More
What is the shelf life of your implantable transmitters?
All of our transmitters are made to order. They cannot remain on a shelf indefinitely because, even when not recording, they use battery power. We define "shelf life" as how long the device can remain asleep and use no more than 10% of its battery. The shelf life of our smallest transmitters is three months, and of our largest is ten years. More
Do you make an implant that can record three channels of iEEG in a 20-g mouse for more than thirty days?
Yes, the A3054BL Long-Life Intraperitoneal Transmitter has mass 2.4 g and will record three channels of iEEG, each with 0.0-80 Hz bandwidth, for 41 days. More