TekBox TBCG3-RN2 – Comb Generator, 5 MHz – 3 GHz

• Characterized frequency range: 5 MHz – 3 GHz
• Comb spectrum flatness up to 1.5 GHz, amplifier off: typically 8 dB at the RF connector
• Comb spectrum flatness up to 1.5 GHz, amplifier on: typically 12 dB at the RF connector
• Output impedance: 50 Ohm – External input impedance: 50 Ohm
• Output power: -5 dBm max. @ 100 MHz f comb; decreasing 6 dB with every f comb/2

The TBCG3-RN2 comb generator is primarily intended for testing radiated emission setups. It is a useful tool for validating the proper operation of the antenna and pre-amplifier, as well as the accurate set-up and configuration of the spectrum analyzer. It is well characterized in an anechoic chamber and the radiated emission plots can be used as a reference to compare an EUT in a non-ideal setup against the comb generator in the same location.

Users can select between five fixed comb frequencies and an external comb frequency input with a range of 5 kHz to 200 MHz using a rotary switch. A switchable RF amplifier may increase the output signal by 20 decibels (dB).

The comb generator comes with two monopole antennas, a 30cm monopole for frequencies up to 300 – 500 MHz and a 10cm monopole for frequencies greater than 300 – 500 MHz.

The radiated comb spectrum is characterized from 5 MHz – 3 GHz.

The TBCG3-RN2 has a 50 Ohm output with a female N-connector. It runs on six AA NiMH batteries and comes with an external charger. The housing is machined of solid aluminum. The bottom panel has a 1/4″ – 20 UNC thread that accepts regular tripod bolts.