> The encoder provides 80 steps per revolution - so turning the knob 4.5 degrees gives you one step. This is not a lot of movement
I am turning it VERY slowly and am not jumping past 4.5 degrees physically, which is quite a lot of movement. If I am the back edge of a slot on an encoder, then to jump two will take more than 5 degrees of movement. I am not moving that far when I observe this. > you are using DDUTIL you can alter this by clicking on the EXPERT button Using yet another pieces of software to solve the problem isn't really solving in the FlexControl software. But at least you do offer a work around. Yet another great use for DDUtil. 73, Scott AC8DE -----Original Message----- From: Stu Phillips [mailto:[email protected]] Sent: Wednesday, June 15, 2011 6:38 PM To: Scott Myers; 'Tim Ellison'; [email protected] Subject: RE: [FlexEdge] FlexControl "Nervousness" There are two factors at work here... The encoder provides 80 steps per revolution - so turning the knob 4.5 degrees gives you one step. This is not a lot of movement so based on visual feedback as you tune, you may stop very close to the next step... ie if you turn 3.5 degrees while you are getting visual feedback on your tuning action, you may "nudge" the encoder step as you take your hand off the knob. The second is how tuning acceleration is detected - if you are using DDUTIL you can alter this by clicking on the EXPERT button on the Knob tab. The ZR value controls the sensitivity of the acceleration detection and is in 5 mS "ticks" - the value is in hexadecimal so the default 0x0A is 50 mS - you can reduce this all the way to 0 (which is NOT the same effect as turning variable rate tuning OFF) BTW. If you are still feeling the FlexControl is "nervous", try reducing the value down to about 5 and leave variable rate tuning ON. Since now everyone will be wondering what the other values represent... ZC is the time period for double click detection ZL is the time period for long click detection ZE can't be changed by the DDUTIL interface and controls the number of steps/revolution There is also a difference in how variable rate tuning is implemented between DDUTIL and FlexControl - you might want to try both. With DDUtil, you can leave the step size small - I typically leave my FlexControl set to 5 Hz steps and with variable rate tuning turned ON in DDUtil. I can make large frequency changes by turning the knob quickly - in the DDU implementation, this changes the STEP size dynamically and transparently for you. This enables very fast QSY without having to change the step size up and down. Hope this gives some more background! Stu K6TU -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Scott Myers Sent: Wednesday, June 15, 2011 2:12 PM To: 'Tim Ellison'; [email protected] Subject: Re: [FlexEdge] FlexControl "Nervousness" That is definitely better. But it is still a tad jumpy. That really settled down the RIT and XIT adjustments nicely. 73, Scott AC8DE -----Original Message----- From: Tim Ellison [mailto:[email protected]] Sent: Wednesday, June 15, 2011 4:53 PM To: Scott Myers; [email protected] Subject: RE: [FlexEdge] FlexControl "Nervousness" Yes, turn off Tuning Acceleration in the FlexControl form. -Tim -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Scott Myers Sent: Wednesday, June 15, 2011 4:39 PM To: [email protected] Subject: [FlexEdge] FlexControl "Nervousness" I have noted that the FlexControl can be a bit "nervous" when you are trying to make small adjustments. I've had it want to sit there and dither back and forth between two or three steps. Also, when I am turning it slowly, it will often jump by a step. For instance, with steps set to 250 Hz, it may jump from 250 to 750 and then I have to come back to 500. I tried turning down the send and receive buffers in device manager for the com port, but that didn't seem to have any effect. Seems the electrical averaging is having difficulty. Any suggestions? 73, Scott AC8DE _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software. _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software. _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
