G8JNJ

I replaced the LAN8710A (PHY) chips on the two original Beagle boards and they now work correctly.

I had a bit of a problem with the second board as the LAN8710A is a 32-pin QFN/SQFN surface mount package with a fairly large heatsink pad on the underside. I thought I'd got it hot enough with the hot air gun on the rework station, but unfortunately three of the pads lifted off the PCB from one corner when I removed the chip :-(

Fortunately I managed to repair the missing tracks and the chip works OK :-)

However the second new Beagle board I got from Farnell still refuses connect. I've tried just about everything with it, but it just won't cooperate. I've checked the same image I've loaded onto it on two other Beagles, which have both started up and connected to the router, so I don't think it's a MAC address conflict as the same problem would have occurred. So I'm 95% certain there is a problem with the new Beagle board.

I've still got enough spare chips to try swapping the LAN8710A, but I think it's probably better just to send it back to Farnell and get a replacement board.

So it looks like the Ethernet port is the Beagles weak spot.

Regards,

Martin - G8JNJ

Hi John,

I like the new TDoA maps in v1.238, I think I actually prefer them to the original :-)

Thanks for the quick fix.

Regards,

Martin - G8JNJ

Ah yes I missed the other thread, I got confused because I'd been following a similar conversation on another forum regarding the loss of Google maps.

They had suggested Leaflet (an open-source JavaScript library for mobile-friendly interactive maps) https://leafletjs.com/ as being worth looking at, but I'm sure there are many other contenders too.

I think this decision may actually cost Google more than they may gain in the long term, and it's not as though they really need the money either.

Regards,

Martin - G8JNJ

Hi John,

I have a test setup running on http://g8jnj.proxy.kiwisdr.com:8073/ with two AM signals being modulated by a CW recording.

TEST TEST TEST 1234567890 THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG

The two signals are at different levels

3598.00KHz @ S3

4548.00KHz @ S5

I can get good decodes (just) on 4548.00 with 50Hz BW and a threshold of 42 but 3598.00 is too weak.

I'll leave it running so please feel free to use it for your own tests as required.

Regards,

Martin - G8JNJ

Hi Lonecrow

Try http://g8jnj.proxy.kiwisdr.com:8073/

It's a very quick and nasty lashup which is lying on the floor of my workshop so there is a lot more unwanted noise and hash than there should be.

VHF 144MHz band antenna, 100m of coax to workshop, 20dB low noise preamp, VHF BPF filter (6dB loss) , 10dB preamp, FM BC Band notch, 10dB preamp, Mini-Circuits Mixer, 115MHz LO injection from a signal generator, 40MHz LPF & into the KiWi.

I've edited a few DX labels with local airports, but I've not done anything fancy with removing or editing the HF Band markers etc.

Best performance is between about 120-130MHz as I had to quickly build a band pass filter to remove the FM Broadcast Band and it's not very good.

I'll leave it running for a few days until I need it for something else.

Have fun,

Martin - G8JNJ