Want one of these; search for “SGVU-L” @ ebay.
I am planning to use this in displaying RF-power measurement, but it needs some modifications. So stay tuned……………
Here is some more info:
I got this of ebay as a kit. PCB’s are very nicely build. Kit comes with LM3916 chips, which is a semi logarithmic VU meter LED driver.
Cascading six of these don’t really make any sense if you want to use it as a meter for readings.
So, I have replaced the LM3916 with one LM3915 logarithmic 3 dB/step driver chip for the ten first LED segments, then five LM3914 linear LED driver follows for the rest of LED segments.
Of course this is for one channel only, so you need 2 x LM3915, and 10 x LM3914 for doing both channels.
This is not unusual at all, but it is very unfortunate.
Currently the local ambient noise level is 4 or 5 dB higher then I can tolerate.
I simply cannot hear anything of the moon at this noise level.
I am standing by, and hoping it will go away.
DNS provider Dyn.com is currently under heavy DDoS attack which has affected many well known brands across the Internet including Amazon, Netflix, Reddit, Paypal and many others.
This may affect your site if you use them for DNS or if you use any service, like Paypal, that uses DynDNS.
This is a bit off topic, but it is fun to hear the Blues Brothers version of this song.
Will be participating in the ARRL EME 50 to 1296 MHz Contest this weekend. My band will be 144MHz in digital mode only. I have been working on giving my QRPp setup a 3dB boost for this weekend, but I had to abandon this due to mechanical difficulties. (Antenna staking hardware was not strong enough to hold the antennas straight, back to the drawing board I guess.) 🙂 My setup: Band: 144, mode: digital, antenna: 13,4dBd, power: 100-150w Good luck all!
This morning I decided to do some work on the good old Kenwood TS-2000.
The MULTI/CH encoder is operating erratic and has getting worse lately. I replaced that with new one.
Replaced the 144MHz UHF-type antenna connector with a N-type jack.
Installed the 1.2GHz Tx Distortion mod/fix by VE2ZAZ