... I haven't seen any ready to go kits, but I recall articles about building 80/40/30 meter QRP amps using paralleled CMOS logic gates as drivers for common ...
I saw someone on E-bay selling a HF amp with a few Watts output for about 80 bucks ( they are in Germany or Greece as I recall, and don't care about the FCC...
Hi Allen, The driver and PA sections of the MMR-40 transceiver (Hendricks QRP Kits - he'll be at Dayton, near the ARRL booths) would be a nice starting point....
... A full-size quarter-wave wire would be about 24 feet. I would envision a vertical dipole consisting of 24' upwards from the payload to the balloon and ...
Hi Allen, I tried to reply to the thread a couple of times but for some reason my reply got cut off and only the original was sent... here's a try as a ...
Jim, Thanks for the info, I will look him up if I can get out of my booth for more than a bathroom break! Allen In a message dated 5/3/2012 5:29:13 A.M....
Good evening, I just fired up my AIO V 2.2 after moving all my goodies from HI to VA, and while booting up the status LED flashes green, red, green, then goes...
Jack KE4LWT wrote... ... Actually, it is fairly normal... unless it is turned on and visible to the sky during the move. It should eventually be able to...
I thought as much, but I’d never noticed the orange LED before! Thanks! Jack KE4LWT From: MicroTrak@yahoogroups.com [mailto:MicroTrak@yahoogroups.com] On...
I see your position out there as a bicycle using -9 hitting a digi an hour or two ago. The yellow light occurs when the GPS lights Green and the Red ( ...
Roger, Allen. It finally got the satellite data and is now showing me in the right location. I’m heading out on a hike up the side of the Blue Ridge...
Jack, Thank you for your kind words! Watch out for bears! FYI, we have noticed that some hams, especially as they get up in years, are a little color blind in...
The 7812 12 volt regulator is generally good for an amp, maybe an amp and a half tops. If you are trying to pull 3 amps from it, then the output voltage will...
I thought you might like to know that the son of the MT-BFT, which we are tentatively calling the MT-BFT FA ( clever huh?) was put through its actual drive...
THANKS GUYS FOR THE REPLYS, This has helped me start testing in one direction and narrow down the problem ,although i still have the problem. First test was...
Ran out of things to try.... MT-AIO, MicroRidge ComTestSerial (Com3,4800-n-8-1), using a 9V, with pwr all the way off, I get a clean reply MicroTrak FA V1.42....
FWIW, I have found my MT-AIO is voltage-sensitive when trying to read or write. I power it with rechargeable NiMH batteries. If the batteries are not (nearly)...
For some reason my unit quit sending its info to the Igate. I'm a stone throw from ve3sne in Sault Ste Marie. The unit is a steady green. It stopped just...
You can use an IPod, IPad. And iPhone. It's only send info to www.openaprs.net. When you fill in the info, it ask if you like your data to go to other AIS...
A client sent me a set of Energizer Lithium primary batteries along with a Micro-Trak for repair. These were the Energizer "ultimate" lithium (non-rechargeable...
I use the Ultimate Lithium AA cells routinely in our balloon packages and have alway put a resettable fuse in the line. A pack of 8 cells is noramlly used to...
Would the AIO accept a voltage low enough to put in 1-fewer lithium batteries, and jumper the open battery position? This might keep it in range, while still...
You would generate substantially less output power at 10.5 volts. I think the best solution is to back the power trimmer pot down just a hair to keep it in...
i finally got a chance to try my AIO in my airplane. It did not seem to do as well as I thought it should. It had fresh duracells and when I brought it home I...
Michael, You should be seeing a lot more power output. Is the PWR control set fully clockwise? Allen AF6OF VHS In a message dated 5/25/2012 6:39:28 P.M....
yes it is all the way up....mike www.wa8ywo.com I have been having trouble with my short term memory. Also , I have been having trouble with my short term...
Did you do the test in the "send both" test mode or while the unit was in normal operation? When a MT-RTG-FA is attached to my Bird meter, the analog meter...
It did not seem to do as well as I thought it should. Define well? Did your position reports appear on your local APRS Station via RF? Did they appear on...
