It was certainly one of the very first radios with it - but there was also a non HQ version (the most obvious sign was that the synthesizer slice just had "Synth" rather than "Synth/ECCM" on it. The RAF in the UK had a bunch of them and wanted to modify them to HQ spec for interoperability - the reason for the "special" timing box was that the one the USAF were using was based on a military spec GPS receiver that was a much bigger export problem than the HQ radios were. I also have a vague memory that although the actual GPS would work in a degraded mode if it didn't have current key data the TOD output just turned off because it could no longer decode the corrections for SA and the designers had decided that possibly wrong was worse than nothing at all.
Thinking about this stuff makes me feel old (looks at his phone with a 40 channel parallel tracking GPS/GLONASS receiver in it). On Fri, Dec 14, 2012 at 7:30 PM, Bob Camp <li...@rtty.us> wrote: > Hi > > Ummm…… errrr….. wasn't the ARC-164 the original HAVE QUICK radio? They > certainly came out in both HAVE QUICK I and HAVE QUICK II versions. > > Yes, that was 30 years ago…. > > Bob > > On Dec 14, 2012, at 1:24 AM, Peter Bell <bell.pe...@gmail.com> wrote: > > > One of the very first time related projects I was involved in was for > > synchronizing radios - this was when they were retrofitting HAVE QUICK to > > the AN/ARC-164 and wanted a cheap, portable source of TOD data - the GPS > > was a 2-Channel Magnavox unit (C/A code only) and they also did the > > firmware modifications to generate the right data format (STANAG 4246?) - > > so basically all that was left was putting them into a box with battery > > backup. > > > > Wow, that was more than 20 years ago - I guess I'm getting old... > > _______________________________________________ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
