The RGO One V6 is simply an amazing State of the Art.I have V6 v1.02 firmware revision and here is my impression after week of usage...
Audio filter (AF) option is a small board located on IF/AF board.
Spec: Digital signal processing (DSP) architecture based on ADI Sigma studio chip. 12 low pass and 7 high pass high order (6th order) filters automatically selected by the software. Audio filter bandwidth follows current IF bandwidth and pitch on CW. If narrow filter Jones – 4 pole is engaged and in line firmware adjusts LPF and HPF frequencies accordingly. (BW position B01 – B10 and OFF)
My impression:
Turning ON the AF filter is very effective. It significantly reduces local interference and noise that VBF alone is not enough to deal with. I really like the pure analogue receiver filtering but AF filter is amazing weapon for local man-made noise.
Audio peak filter (APF) feature
Spec: This is high Q parametric filter resonating at pitch frequency (±30Hz). It boosts up received signal with three adjustable levels – 8db 10db and 12db. Can be switched off and on. APF makes faint signals popping up well on the noise level.
My impression:
It is very effective feature even at 8dB gain level setting. In fact, I never used higher gain and it dramatically helps with weak signals. Several times I was able to pulling up weak signal from the noise and make it readable on CW. I definitely like it.
Noise reduction (NR) function
Spec: Based on ADI noise removal digital algorithm. Adjustable level of action.
My impression:
I tested the NR for several days on different bands. I noticed that 0-15dB level has no such big effect here in my location. At 20dB level setting is the NR very useful and reduces band noise significantly.
NOTCH/AUTONOTCH function
Spec: Works according to the bandwidth in use. AUTONOTCH works only for BW<1200Hz. Manual NOTCH frequency is adjusted by rotating ENC.3 RIT/XIT. AUTONOTCH feature is activated by long press of ENC.3 button.
My impression:
I tried to test the Notch filter in SSB on crowded 20m band a bit. I have repeatedly been able to easily remove nearby carrier or interference using this feature. I will try the Autonotch more, but it is a good tool on a crowded band.
CW TUNE / AUTOTUNE feature
Spec: This is useful CW aid function for ZERO beat or CW pitch match tuning. RIT/XIT LED glows/flickers in green when the pitch frequency locks. Short click on ENC.3 (RIT/XIT) initiates auto tune procedure which takes a second to tune the frequency to received CW signal. Auto tune won’t work if the signal is more than ±100Hz away from current VFO frequency. Weak signals bellow -121dBm won’t trigger CW autotune.
My impression:
The automatic frequency tuning on CW works very well. I have repeatedly tuned in even weaker stations this way. The feature on RGO One is a bit different from other radios. Tuning a station during autotune is not heard in the audio output and the frequency change is not visible like on other rigs. Just silence then the audio and frequency jump to the ZERO beat spot. It looks interesting but it works very good. I had time to time problem to get ZERO beat on disturbed frequency but repeating Autotune solved it.
Short video with Autotune is here:
Short video with APF in action is here:
73 - Petr, OK1RP
