FAQs

What is the min tuning resolution/freq step size for R5500/R5550/R5750?
For R5500/R5550 and R5700/R5750, the tuning resolution (or min frequency step size) is 10Hz.  Detail can be found at "[:SENSe]:FREQuency:CENTer&quo...
Tue, Aug 18, 2020 at 1:17 PM
Can instantaneous bandwidth(IBW) be set to an arbitrary value?
IBW is dependent on the RFE mode used and they are 100MHz (ZIF mode), 40MHz (SH mode), 10MHz (SHN mode), 50MHz (DD mode), and 100kHz (HDR mode).  It can als...
Wed, Jan 13, 2021 at 1:39 PM
What type of oscillator type do you use for internal reference on R5500/R5550?
ThinkRF uses TCXO.
Tue, Aug 18, 2020 at 12:51 PM
What is the external 10MHz IN reference level range for R5500/R5550?
Max +10dBm Min -10dBm
Tue, Aug 18, 2020 at 1:00 PM
Is there any pre amplifier for ThinkRF R5500/R5550?
Adjustable Pre-amplification is available for -418 and -427. Please refer to this document AppNote: Gain/Attenuation Settings for ThinkRF R5xx0-418 and -427
Tue, Aug 18, 2020 at 1:16 PM
How do I use the different attenuation (and gain) values?
This question is addressed in this article "When to use which attenuation (and gain) setting?".
Wed, Mar 3, 2021 at 3:29 PM
What is the tuning speed of R5500/R5550/R5750?
The sweep speed is in excess of 28 GHz/s with a frequency resolution of 10 kHz.  So effectively the tuning speed is faster than 3.5 ms because the sweep in...
Tue, Aug 18, 2020 at 5:02 PM
What power connector does R5550/R5500 use?
From the power supply end, the connector is Barrel Plug, 2.5mm I.D. x 5.5mm O.D. x 11.0mm
Tue, Apr 6, 2021 at 5:56 PM
Can R5550/R5750/R5500 be used to detect pulse signals?
For R5550/R5750/R5500 products, ThinkRF spec at 25us for pulse width signal detection (POI). Anything less than 25us may not be detected.  Certain span ...
Thu, Apr 8, 2021 at 3:21 PM
Does Gain setting apply to DD mode?
The gain setting does not apply to DD mode. Gain settings only apply to the mode above 50MHz for -418 and -427 models.
Thu, Apr 29, 2021 at 2:22 PM