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Hi Michael, I've tried it from IC5 pins 1 and 7 and it did seem to be baseband audio at that point. I got at least 0 to 24kHz bandwidth feeding my homebrew panadaptor. It was a little experiment into

And with VNC (built into Raspbian) you can operate remote from anywhere! I'm honestly surprised I'm not playing radio from work every day ?

Hello, I was thinking that an add-on pan adapter would be a fun project to try. And knowing just enough to know that I know nothing about this, I thought I'd ask what may be a "simple" question. Can I

One thing I was looking at was using FLDIGI running on a RPi3 as a “front end” for the QSX. Hans says the QSX should interface nicely with JACK (Jack Audio Connection Kit). Coupled with a touch

Earlier today I was codgertating on "ain't it a shame the QSX is rolling out with an underwhelming display". But then I got to thinking abt my K3 and how rarely I actually touched the FP controls or

Garry, My coding wasn't nearly so interesting. I was building one of the first generation "Network Operations Centers" for the Telco? GTE of the SW in the 80's.?? We primarily did remote monitoring

Ten statement Fortran plus Fortran IV for the IBM 360, featuring the WATFOR and WATFIV compilers. 1st ed. 1970 - my senior year in high school. Hard to believe I was perusing that book nearly a

Jack / KZ5A, It's more like riding a 'unicycle'!? I'm 'here' to save you from hours of frustration!? I have a box of IBM cards (new) and a FORTRAN coding ruler so you can find coding errors!? :)

i finally got tracking on the replacement uP for my QCX40, looks like it will be here in a week or so.?? That shipment also includes a new QCX 20 to build after I get the QCX40 percolating.? Today

Many thanks for some great advice!? I have a dummy load and I need to get in the habit of leaving it connected until I'm really ready to go. -- Jim, KJ7EZN? ? 73!

Allison Agreed, my PLL reference was to the fact that there is a control loop but that it is slower than a conventional PLL. H&P is very useful if done properly, but can be a real nightmare if done

Mike Several years ago when I was experimenting with H&P designs I found that a Vackar VFO was better for my H&P uses. In addition to being stable, the output is low impedance and seems relatively

If you connect one end of a cable shield to ground, you create a Faraday Shield ( Google it ) and having only one end connected to ground prevents spurious current loops creating noise. You must of

Mike, I've never measured it, not having ever used it for anything except 75M AM where it was a non-issue.? I usually monitored myself on a SDR and occasionally made minor corrections to stay spot

Thanks for that Arv. I don't know about moving the yahoo group as, really, how many people are going to use a huffpuff in this age of synths? I liken my interest in this area to a kind of boat-anchor

Thanks, Allison.? I was thinking maybe 100 ohms in series with the blocking cap (to provide short circuit protection) and then 75 ohms to ground at the output of the box to recover a 50 ohm source

I would connect that shield to the ground only at one end and if the GPS kit already suggests not to use the ground plane of the GPS then you only have the rig end as an option. Both ends will give

Hi Jim, I would personally not hook the shield to to the QCX or the GPS. I have about 3 GPS units running and have never used a shield. If after using the radios and you think? that a shield would

Hi Jack, I would be interested in how the drift affects the x2 x3 and x4 multiplier for 20-10 meters on the DX-60.? What would you say the HG-10 drifts now?? From cold start and after 30 minutes? I

Hi Arv, "Consider H&P as a PLL design that locks on multiples of the reference frequency.? It? adjusts slower than a PLL but otherwise many of the PLL design formula can be used." Its not a PLL,