Telonics VHF Telemetry Receivers
Telonics VHF telemetry receivers are specifically designed for use with conventional VHF transmitters as used in wildlife tracking. These receivers have a very narrow bandwidth coupled with a very fine tuning capability, extremely low noise front end, a broad dynamic range of signal reception, and specialized gain control that allows the user to reduce the signal levels so that a bearing can be established when using a directional antenna (which must be purchased separately). This combination of specialized features is not found in commercial receivers used in other radio applications. Off the shelf or modified commercial receivers lack a number of important characteristics, including the sensitivity required to track the very low power transmitters used in VHF telemetry applications.
The following table lists the current models of Telonics telemetry receivers. Tracking receivers include the TR-4, designed primarily for hand-held use; and the TR-5, which was designed primarily for aircraft and data acquisition applications. The TVR-1 is short-range test receiver. The TNR-3000 noise reduction system was designed for use with VHF telemetry receivers operating in high noise environments.
VHF Receiver Models
|Model||Description||Common Frequency Ranges||Dimensions L x W x H (in, cm)||Weight (g)|
|TR-5||Combined receiver and scanner, can be used in mobile or fixed site applications, data acquisition system available (option 320)||148.000-151.99 MHZ, 150.000-153.99 MHz, 162.000-165.99 MHz, 164.00-167.99 MHZ, 168.000-171.99 MHZ, 172.000-175.99 MHZ, 216.000-219.99 MHZ||7.0 x 4.35 x 2.45
17.8 x 11.1 x 6.2
|TR-4||Inexpensive, lightweight, easy to use receiver. Up to 100 channels can be programmed within a 4 MHz band||148.000-151.99 MHZ, 150.000-153.99 MHz, 162.000-165.99 MHz, 164.00-167.99 MHZ, 168.000-171.99 MHZ, 172.000-175.99 MHZ, 216.000-219.99 MHZ||6.75 x 3.5 x 1.75
17 x 9 x 4.5
|TVR-1||Reliable lab or field test monitor, useful for testing transmitters prior to deployment or "exercising" during storage periods||145-170 MHz||4.5 x 2.7 x 1.3
11.4 x 6.9 x 3.3
Noise Reduction Unit
|Model||Description||Dimensions L x W x H (in, cm)||Weight (g)|
|TNR-3000||Small, rugged, and lightweight for use in portable applications and at fixed sites. Will reduce background noise ("pink noise") by 15 to 17 dB, can be interfaced with any telemetry receiver through the audio headphone jack (an adapter may be necessary)||1.34 x 2.85 x 4.5
3.4 x 7.2 x 11.4
The information below is provided for individuals who are still deploying these older systems. We no longer sell these items, however they are supported (based on availability of components) and can be sent to Telonics for repair.