Activity

So, would it be better to use the Astro 220 DC20 combo or a 70cm tx/rx system?I am getting an Astro setup as well, but am not sure what to use in my VA. I have an old dog that…   Read more»

I wonder if using shielded or twisted pair wiring would resolve some or all of the RF coupling issue? One problem I note with most altimeters is that except for the power supply negative terminal, there’s not much in the…   Read more»

Most of these units as they were designed for ground use have a lot larger output of 2 to 5 watts.. With the exception of some that are .5with that much output its no wonder they have some issues with…   Read more»

We should have a separate GUIDELINES FOR RF along with ID allocation, but could be mentioned on a future ID RESERVE page. I’d be glad to help the web dudes on writing the html for those, if necessary.Ken and I…   Read more»

Most of these units as they were designed for ground use have a lot larger output of 2 to 5 watts.. With the exception of some that are .5with that much output its no wonder they have some issues with…   Read more»

The DC20 transmits at 2W power. The low end Rinos are .5W and the higher end Rinos can do 5W on GMRS.BTW, 1/4 wavelength sensitivities are around the 6″ range for FRS/GMRS, so ebay wiring is right in the ballpark…   Read more»

I would expect separation to be an absolute requirement after Mike’s experience with his other transmitter rig although that was operating at significantly higher power than I expect the collars to transmit with.Warren

How about a TEST IT WITH ALL YOU ELECTRONICS!!! May have to be separated from main electronics and they to may also need to be shielded. Just a suggestion and reminder.

Thank you Mike. Very much appreciated. I’ve got to coordinate with Jeremiah as the development website is now running on a virtual machine on his laptop and he’s got a large code dump we’re almost ready to roll out. We…   Read more»

Warren and Eric, I think it would be a good idea to write some html to have an online pre- registration of ID numbers before folks show up to a site with conflicting ID (like the factory default setting). We…   Read more»

How big is the part that goes in the rocket? How much do they cost and where have you guys seen them available?You can get the DC-20 on Ebay for as low as $165. The dimension are below:A 3 inch…   Read more»

Putting the antenna on a short cable, it can fit in a 3″ tube. By pulling the guts out of the rugged enclosure, I believe Mike said it would fit in a 54 or maybe 38mm. If Mike chimes in,…   Read more»

How big is the part that goes in the rocket? How much do they cost and where have you guys seen them available?

Thanks Mike for putting this together. I just ordered 2 of the dog collars and will coordinate with you and Elvis on the collar # when I fly.This has the potential to be the best thing to happen to rocket…   Read more»

YES!!!Now I just need to run the “Slipstick RF Interference Test” with my Perfectflite MAWD.Thanks for the info. I’ll check the Garmin site for the new FW.Ken

I haven’t ground tested for interference, but I’ll hopefully be flying the Rino setup in Excess in Moderation. I’ll just be running on FRS channels for now.KenKen, The Garmin rep said they have received a waiver from the FCC that…   Read more»

Concerning the Garmin Astro 220 with an on-board DC20, I do not believe that the dog (rocket) trackers will interfere with other radio systems. The Rhino series are using the FMRS and GMRS bands so they do not conflict with…   Read more»

At the launches (especially the larger ones), I think it would be wise to have the signup board for ANY radio transmitting equipment, be it Adept, Rocket Hunter, Walston, Garmin dog tracker, Garmin Rino, FRS radios, GMRS radios, etc.I haven’t…   Read more»

Having a transmitter board at MHM is a good idea. (Thanks Greg)Taking it a step further, let’s post what frequencies we’re planning on using in this thread, so that those of us with adjustable frequencies can set theirs up ahead…   Read more»

Well Warren maybe we should download the file to this web site and not use Scott’s site for a hotlink to it and save some of his bandwidth.