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One of our designers created a new PCB layout. All of the pads and vias have what looks like a solder paste on them instead of the typical hole with a annular ring around it. It wouldn't be so bad if the net name wasn't obscured. This persists even when a new project is created on a different...
I haven't seen Altium 2003 since 2004 so my reply will be general. If you have two nets on the schematic with different names that are connected together when it is converted to a PCB layout Altium will assign both nets one of the two names. For example you have VCC1 and VCC2 on the schematic...
We used a Microchip "PICDEM™ PIC18 Explorer Demonstration Board" for a quick set up in our lab. It came with everything we needed.
Also check distributors available to you such as digikey, mouser, Farnell etc for PIC kits.
If price is an issue note that some boards have a programming interface...
transconductance is (change of drain current)/(change of gate voltage).
BJTs, FETs (and vacuum tubes) are basically voltage controlled current sources so "transconductance" is a measure of performance and is the amount of output current change versus the amount of input voltage change. It can...
Like the rest of the responses without information it is impossible to give a specific answer.
I just fixed a computer with the same complaint, very slow. It had a "aquarium" screen saver with swimming fish, a live news banner, live weather, 5 tool bars on I.E., pop-ups searching for ads and...
We do not have very much to go on such as the device, frequency range, etc.
There are a couple of thing to check.
1.) make sure you are not putting too much power into the input and causing it to compress
2.) if possible measure the return losses at the input and output ports (with no input...
We have a similar system with a W/G filter, W/G limiter and W/G to SMA adapter. These element are 8-12.4 GHz WR90 components and have <.25dB insertion loss each. The ripple over our 500 MHz band is <.2dB. These are followed by a LNA, a image reject high pass ( 2 W/G to SMA adapters back to...
There are many good inductors that have a SRF of greater than 10GHz. You will find them limited to <10nH but this is ok for most designs at 2.4GHz. The best performance are the wire wound on a air or ceramic core.
If you use the sort filter on the digikey page at...
I have only used the C8051F340 for USB and Ethernet with the cp2200. I have not used PIC32MX. Therefore I can only write about SiLabs.
The design steps using the SiLabs IDE (it is Kiel based) with its extensive library of examples coupled with the SiLabs USB Express libraries with Visual C and...
True physics at work. You illuminate a smaller area with a constant amount of energy, and the energy in the illuminated area increases, which defines an increase in gain. Also as opposed to defocusing the feed you have actually improved the focus since the beam-width was narrower.
The...
I have often though of doing this. The commercial units have a start time and then each section is run for its duration without a break. Mine has 4 start times A and B which can contain different sections. One start time is shown in App1.
What would be useful is shown in App2. Each sprinkler...
As the beam narrows the flux density in volts per meter in the beam increases. The ratio of the increase when compared the flux density of a dipole at the same range is gain.
Stated another way if you change beamwidth you change the gain.
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