From Bob S. : Happy holidays to all... I've posted a photo of a new DF design ( on this forum ) that is approaching completion... I presently call it...
I've sold MicroHunts before that were used for link transmitters with audio modulation inputs... also one fellow did APRS with one, using an external TNC......
OK, well I can help you there... others here on the forum can help also, ( I'm certain of that ) but about 2 years ago I cut some assembly code to send APRS...
HI Bob, Thanks for the comments. I thought you had done something like that with a modified PicoDopp board, but I couldn't be sure! Are you doing anything ...
Take a look at: http://www.midians.com/html/products.asp?pline=Radio+Modems The product does not do APRS format, but is small, light weight, and low on power...
Nothing ever came of the APRS code I developed... there was a potential customer for it, but it was all very speculative so I undertook it with some healthy...
My pleasure Alan. One other site you may want to look at that offers APRS related products: http://www.argentdata.com/catalog/ Be sure to look at the...
The fellow who runs Argent is on this forum... he lives in San Luis Obispo. Bob S. ... From: "Ray Prezell" <prezell@...> To: <PicoDopp@yahoogroups.com>...
I'd like to cross seed peoples attention to Hamhud and openTracker forums where this has been discussed and some very clever solutions found. 73 de KN6TD...
OpenTracker is another product of the fellow in SLO... yes, he is more helpful than most.... he has the only web page I ever found that discusses the CRC error...
I actually got the idea to build a new uberTNC, so I contacted the authors of the newest AX.25 spec, and they told me that I was the first person to contact...
Thanks! I'll look into the OpenTracker and Hamhud (?) forums. Byonics I know! I've done a few CRCs! I wrote a tracking program for RDF (DOS), along with the...
OK, I'll send it over in a few minutes, no need for an NDA, anyone that really wants to seriously do this stuff would use Bob Ball's public code for a complete...
The place of worship that I attend has an issue. The person that operates the Sony pan-tilt-zoom camera that (by hand) tracks the minister can no longer attend...
I wouldn't reccomend it, indoor operation would be hit or miss due to reflections... although there is a fellow on this forum attempting to do ( I believe )...
Ray I have been working on doppler indoors. It is difficult due to the close proximity and reflections. We can carry out a conversation offline. You need to...
I sent an email to Robin Lovelock of Sunning Hill makers of the gpss software, that uses GPS to show map position and also displays the direction vector from...
... for ... older ... supply, ... the ... device ... have to! ... hi not sure where you are but you can buy a serial gps from ebay for £28 brand new. and you...
From Bob S. SunningHill GPSS has its blemishes and shortcomings, but it seems to be the most direct way to get useful / meaningful GPS map plots of DF lines. I...
I am looking into the purchase of one of these doppler df devices for use with my search and rescue activities which consist mainly of an occasional PLB...
From Bob Simmons... Yes, he's right, most recievers are not designed to respond to signals with durations that brief... the standard PicoDopp also won't...
Yes sir I have over 10 years of experience with CAP in the late 1980's/ early 1990's using the handheld Ltronics units to do DF work. I understand that this...
I'm surprised no-one else has jumped in here yet... thanks for the info... L-tronics is a neighbor of mine, literally 5 miles away. Many CAP people want me to...
Have you seen the Communications Specialists PR-60 receiver? I believe it is used for applications as mentioned. The PR-60 frequency list is published on their...
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