Search found 9 matches

by mildex
Thu Oct 14, 2004 4:20 pm
Forum: Schematics - help and ideas
Topic: UHF long life & distance transmitter
Replies: 3
Views: 11627

No, I have not seen your bugs. What I need is SCHEMATIC DIAGRAM, with PC board schema, with full components specification. That I could assemble a bug myself. Could someone help?
by mildex
Wed Oct 13, 2004 3:56 pm
Forum: Schematics - help and ideas
Topic: UHF long life & distance transmitter
Replies: 3
Views: 11627

UHF long life & distance transmitter

I need schematic diagram of micro UHF Long Distance transmitter (bug), frequency near 398Mhz-400Mhz, PLL-quarz controlled, distance near 300m or more, battery life: about 5 Days, Power: cell tablet CR2032(3V) x 1PCS or CR2450 (3V) Li. SMD design. Could someone help with schematic?

mildex
by mildex
Tue Oct 28, 2003 7:33 pm
Forum: Users share experience...
Topic: micro UHF transmitter
Replies: 15
Views: 35529

Hi,
could you accomplish this your suggestions into improved schematic of this transmitter(for 400MHz) and make it available?

mildex

Hi!

Thanks for the schematic, I'll add it to our schematic section.

I have a few suggestions:

1.) Only one AF stage should be enough for this

2.) The problem ...
by mildex
Sat Oct 25, 2003 6:47 pm
Forum: Users share experience...
Topic: micro UHF transmitter
Replies: 15
Views: 35529

Hi,

This VHF transmitter author, as well as mentioned website owner is Daniel Norman. I just showed his transmitter as an example.

mildex

Otherwise, your website is really cool. Feel free to contact me with any ideas or questions at any time (use email). We might even find a way to colaborate in ...
by mildex
Thu Oct 23, 2003 3:19 pm
Forum: Users share experience...
Topic: micro UHF transmitter
Replies: 15
Views: 35529

Here is description and schematic of good VHF bug
http://hem.passagen.se/communication/buggtx.html
You can use it for free.

The BUG PRO I is a product of another company of my very close
friend. He does not want to publish a schematic.

BUG PRO I is a pretty unique piece of transmitter and I don ...
by mildex
Thu Oct 23, 2003 10:59 am
Forum: Users share experience...
Topic: micro UHF transmitter
Replies: 15
Views: 35529

No, I do not make my TVset myself. This is other thing, its outside of my interests.
pcs wrote:Did you make your TV set yourself also?
by mildex
Wed Oct 22, 2003 3:55 pm
Forum: Users share experience...
Topic: micro UHF transmitter
Replies: 15
Views: 35529

I'd always prefer build unit independently, this allows choose/customize some options, case size, power etc. Why do not make the schematic diagram AVAILABLE for community? This topic calls "User share experience..." Community could discuss its, maybe, even to improve some parameters. There many good ...
by mildex
Wed Oct 22, 2003 10:37 am
Forum: Users share experience...
Topic: micro UHF transmitter
Replies: 15
Views: 35529

I need more professional and more quality bug then listed here, I need Schematic diagram.

mildex
by mildex
Tue Oct 21, 2003 5:58 pm
Forum: Users share experience...
Topic: micro UHF transmitter
Replies: 15
Views: 35529

micro UHF transmitter

I am looking for schematic diagram of micro UHF transmitter(bug), frequency band near 400MHz (quarz controlled) ,range near 500m or more, professional SMD design, small size, battery life 10-20 days. Could someone advice good solution?

mildex