Very cool Dude! Was that weight batteries and all? Joe WB9SBD Near Space Sciences The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com ...
389
Jason R
ke4nyv
Nov 24, 2011 7:30 pm
We have decided to do a Black Friday Sale, starting today and going until midnight tomorrow (Friday). Many of our popular products are on sale and in stock! ...
390
n0mpm
Dec 9, 2011 12:08 am
I have two RTRAK-HAB's. One of them works great and have had a flawless flight. The second one is giving me fits. When I first received the modules, I was...
391
Barry
ve6sbs
Dec 9, 2011 4:33 pm
Are both RTrak programming setups identical? In other words, are both units no longer installed in different capsules with different antennas attached? Or did...
392
n0mpm
Dec 10, 2011 9:59 pm
I have tried a dozen things to assure rf isn't the problem...but I did remove the SRB MX146 module a few times between when I first configured the RTRAK and...
393
Barry Sloan
ve6sbs
Dec 12, 2011 12:47 am
There's no problem removing the MX146 and operating the tracker without it and have done so countless times while helping Jason finalize his design (as long as...
394
Jason R
ke4nyv
Dec 18, 2011 10:19 pm
As we come towards the end of the year, we are working on end-of-year inventory. We have three brand new RTrak-HAB units in stock and ready to ship! These...
395
n0mpm
Dec 23, 2011 3:57 pm
I would like to commend Jason and his team for resolving a RS 232 communication problem with my RTRK-HAB. In less tha a week my unit was back in my hands,...
396
lists@...
ke4nyv
Dec 23, 2011 4:54 pm
Mike, Glad to hear it made it back OK! Thank you for the kind words! Merry Christmas! Jason Rausch - KE4NYV RPC Electronics, LLC www.rpc-electronics.com ... ...
397
Jason R
ke4nyv
Mar 5, 2012 2:15 am
RPC Electronics, LLC is proud to announce a new product for the APRS community! The MX14x Test Fixture is a full feature test bed for testing all versions of...
398
Jason KG4WSV
joeuser66
Mar 21, 2012 11:59 pm
Is tere a recommended audio level for the -HAB unit? The manual shows about 50%, the first unit I opened shows about 10% (2 steps from the left). I figure this...
399
lists@...
ke4nyv
Mar 22, 2012 12:34 am
Jason, I really need to make a change to the manual. Â Let me explain... When we do final checks, we set the deviation for right at 4 KHz. Â This seems to be...
400
Jason KG4WSV
joeuser66
Mar 22, 2012 12:38 am
... OK, this should probably stay at the second tick, since anything higher distorts. Now my problem is that it won't transmit anywhere other than 144.39. I've...
401
Jason R
ke4nyv
Apr 19, 2012 11:22 pm
We finally have MX145H modules back in stock and they are ready to ship out now. http://rpc-electronics.com/rf.php Thanks and please emails us with any...
402
Jason KG4WSV
joeuser66
May 19, 2012 2:46 pm
Has the frequency change bug been fixed yet? I've got 4 defective RTrak-HABs that I can't make transmit on 144.99 exclusively. -Jason kg4wsv...
403
airsix73
Jul 30, 2012 7:32 pm
Hello, I'm preparing my first balloon launch and trying to decide on antennas for the mobile ground station as well as the balloon. I'm a new ham, and nervous...
404
Mark Conner
n9xtn
Jul 30, 2012 7:53 pm
350 mW will be fine for this distance with most antenna configurations. On one of our balloon flights, we hit a digi >250 miles away with 350 mW going into a...
405
Joe
nssdz
Jul 30, 2012 8:00 pm
Hi Ben, Welcome to the world of High Altitude Ballooning. What mode is this for? APRS? if so then of course you want the antenna on the balloon to be...
406
Jason KG4WSV
joeuser66
Jul 30, 2012 9:00 pm
By far the most reliable antenna we have used in terms of RF, mechanical reliability, longevity, etc, is a 1/2 wave dipole made from tape measure stock. The...
407
noid1037
Jul 31, 2012 2:28 pm
Ben, Another antenna that works and can survive many flights is a 450 ohm ladderline 2M antenna. You can attach a BNC connector to the antenna and then have...
408
Jason KG4WSV
joeuser66
Jul 31, 2012 3:11 pm
Something to keep in mind is the temperature rating for the insulation on the exposed material, and the fact that the payload will experience various amounts...
409
James Ewen
ve6srv@...
Jul 31, 2012 7:39 pm
There's an extremely robust antenna that will work very well for that 25-30 mile range listening for that pip-squeak 350 mW signal... It's called a 1/4 wave. ...
410
Bruce Coates
lpcoates
Jul 31, 2012 7:39 pm
Hi Ben Most people use either a simple upside down 1/4 ground plane, vertical dipole or wire J-pole on the balloon. All these give good radiation patterns...
411
Leigh
lpcoates
Jul 31, 2012 7:39 pm
... Hi Ben Most people use either a simple upside down 1/4 ground plane, vertical dipole or wire J-pole on the balloon. All these give good radiation patterns...
412
Leigh
lpcoates
Jul 31, 2012 7:39 pm
Hi Ben Most people use either a simple upside down 1/4 ground plane, vertical dipole or wire J-pole on the balloon. All these give good radiation patterns...
413
airsix73
Aug 2, 2012 10:17 pm
Thank you all for your help! This is great info. Jason, Which teflon coax do you use? Can you recommend a good supplier? Thanks....
414
airsix73
Aug 2, 2012 10:17 pm
Thank you all for your advice! I didn't expect so many responses, all of which have been great. Jason, what teflon coax are you using? Can you recommend a...
415
Jason KG4WSV
joeuser66
Aug 3, 2012 12:21 am
... Some we recovered from wiring harnesses (from a blackhawk maybe?) that were donated to the university. I think it's RG142, which is sort of a double braid...
416
airsix73
Sep 6, 2012 1:22 pm
Just wanted to follow up and let everyone know we pulled off a successful 1st balloon project. The RTrak-HAB performed well. In fact it survived a very hard...
417
Jason R
ke4nyv
Sep 6, 2012 1:26 pm
Ben, Glad to hear you have a successful first flight! ... Was this a typo or did you actually put in WIDE2,1? If so, that is the problem, the path should have...
