Hey Keith, I'm bringing this thread back from the dead.
I was talking to a friend at lunch today about buying a HT and he asked me what type of modulation the TeleMetrum uses. He mentioned that some of the HT can only receive FM while others can receive CW. I hadn't given this any thought. I bought the Gordon West Technician Class Manual today. So hopefully I'll know enough to know what to look for soon enough. ;^) Chris On Thu, Jun 18, 2015 at 12:06 PM, Chris Attebery < [email protected]> wrote: > Thanks Kurt. I'll put it on my wish list. > > On Wed, Jun 17, 2015 at 6:23 PM, Kurt <[email protected]> wrote: > >> Yes, >> >> I have one. The F6A is a nice unit and has the potential of being >> able to track the >> stuff on the 1.25cm band because it can receive in several different modes >> on VFO B. (hi-SSB, lo-SSB or CW modes) >> Stick an offset attenuator on your YAGI and you're in business. >> This one is pretty decent: >> >> http://www.west.net/~marvin/k0ov.htm >> >> You can lookup schematics or other kits too. Alot easier spinning a pot >> than changing antennas or what have you. >> >> One needs to keep in mind if one's rocket is lying in an open area, piece >> 'o cake >> to find it via RDF. If it's hiding in tall grass, corn, between >> hedgerows, in furrows and shallow depressions, >> that's when being able to hold an accurate bearing up close will help you. >> >> If you are using a GPS tracker and are able to get this close, you'll be >> receiving a valid >> GPS packet unless there is some malfunction with your tracker or it's not >> receiving a >> vaild lat/long. In that case, if it's hidden, being able to home in via >> RDF might be useful. >> >> Heck, the open squelch technique is perfectly valid and I use it every >> time with an APRS tracker. >> For a rocket that's down, if one can open the squelch and faintly "hear" >> a packet that's too distorted to be decoded, viola' they know >> immediately the APRS tracker is still working. This is especially >> reassuring for a flight where there is no visual confirmation >> of any of the events. If one sees valid altitudes coming across, they >> can surmise by the rate of descent reported that the >> drogue has deployed and the main made it out. Walk to the last known >> reported position and likely one will receive >> the position of the final resting place if the rocket is not already seen. >> >> This is where GPS tracking really shines on flights where small rockets >> go "way high", "way fast" and land "way far" away. >> Way far away may just be just 1/2 mile. My Wildman Jr., I nor anyone >> else has ever seen a complete flight on the five J motors >> I've flown in it. Every time the rocket disappears I can tell the events >> have occurred and which direction to try to look for the main chute. >> Never seen it under the main but the altitude indications show it's >> deployed and it looks nice as can be when walking up to it. >> One of these days I'll fly it on an I motor to see what is looks like. >> Oh, I do pop the main at 1000' to increase the chances it's seen. >> Kurt KC9LDH >> >> >> -------------------------------------------- >> On Wed, 6/17/15, Chris Attebery <[email protected]> wrote: >> >> Subject: Re: [altusmetrum] RDF on the cheap >> To: "Altus Metrum" <[email protected]> >> Date: Wednesday, June 17, 2015, 2:02 PM >> >> Do any of >> you have experience with the Kenwood TH F6A HT? There are a >> couple on ebay for reasonable prices. >> >> _______________________________________________ >> altusmetrum mailing list >> [email protected] >> http://lists.gag.com/mailman/listinfo/altusmetrum >> > >
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