Not so much of a review than an introduction with current measurements. Still I appreciate the kindness. 73 Julian oh8stn
Hello operators. Just to clarify starting the series with current consumption. For the field radio operator or the operator off grid, the radios current consumption couldn't be any more important. The rigs current draw defines whether we use a 2.5 amp hour battery, or a 20 amp hour battery. It defines weather will need it 30 watt solar panel, or a 120 watt solar panel. Of course I'm just throwing these examples out there, to add context. Anyway I didn't want to share another "personal opinion" video. So the series will focus on what to expect from this radio, and how to work with this radio. 73 Julian oh8stn
Yes, but the Current Draws and output power was just what I wanted to know. Look forward to more detailed reviews down the road.
An item FLdigi and JS8 users might like to see is how well width and band-pass are adjustable; in a direct conversion SDR radio, there is no IF Shift. Can it narrow down to 500hz at 1000 on the FLdigi waterfall to keep Pactor and Vara next to it from stepping on a MFSK-32 signal? It is really easy to shift -500 width set 500 on the Yeasu FT-891/FT-991a/450 etc when running JS8 and Fldigi simultaneously. On the IC-7300 I cannot get the Twin Pass-band filters and the width setting to get down that narrow at 1000 on the water fall. Instead if I have a MFSK signal running at 1000 on the waterfall, I have to tune down 500hz to bring the signal into the 1500 range the band pass filters were designed to work at. I think the X90 maybe that way also due to how Direct-SDRs are programmed.
The manipulation of filters, shift, ... on the ft-891 is exceptional. I can already tell you it's not that easy on the G90. You can manipulate the filters to a great extent, but it's almost an annoying process, process. if you're used to the Yaesu ft-891. I'll keep this discussion in mind and perhaps do an episode on manipulating the filters with the g90. Excellent points. 73 Julian oh8stn
In case anyone is looking to remote control this rig, I have created a G90 "radio file" for the Android PocketRxTx app. It's in the central repository and can be directly downloaded into the app. Note, however, I don't have the G90 myself, so the commands available are based on information about which CiV CAT commands are supported that I have managed to find online. Remote control is via USB cable or, if you add an RPi or WinPC with the free server program, (jarecmini for Rpi, Jarec for WinPC), Remote control is over LAN, WLAN or Internet. Here's a thought ... with more and more Android based head units being used as multimedia devices in cars (especially the aftermarket car-multimedia units) - put the rig in the boot under the mobile antenna, run a USB cable and operate it from the cars multimedia unit using that units handsfree capabilities. 73 Ed.
Haha I have a G90 Radio last year.Thanks for your detailed review.The G90 is really an interesting rig,it's a cheap SDR radio that our poor students can afford,20w RF power is enough for CW and FT8 oprate.I even used it to participated IARU HF championship(SSB),It's doing great!And it's very portable. It's a cute little radio,I think this radio is a good choice for you to try SDR technology.
So can this rig do full power for say RTTY, JS8Call, or what is the duty cycle. How about chassis radiation, would it meet EU level requirements? Lots more to review, but it certainly does fill in where the ole Ten Tec Argonaut V left off. Tnx -Tom K1TWH
for those curious about specs, be aware that you can xmit on the am bcst band,like 890,wls chicago...
Not unusual for any manufacturer, but especially the Chinese ones, to have specs say one thing and the real world testing show something else.
