tag:blogger.com,1999:blog-953397841255562532.post5660511118971803560..comments2023-09-30T14:59:05.385+01:00Comments on G4ILO's Blog: Handheld receiver blocking shootoutAnonymoushttp://www.blogger.com/profile/11984840704237681015noreply@blogger.comBlogger6125tag:blogger.com,1999:blog-953397841255562532.post-2112418918393723882011-05-06T11:17:00.452+01:002011-05-06T11:17:00.452+01:00Thanks for such an interesting blog Julian, well d...Thanks for such an interesting blog Julian, well done. The UV-3R is available to buy with a dual-band aerial for a fiver more, 73, Len, G3XXQ<br /><br />http://cgi.ebay.co.uk/UV-3R-BAOFENG136-174-400-470Mhz-Dual-band-Antenna-/150598327032?pt=UK_ConsumerElectronics_SpecialistRadioEquipment_SM&hash=item23105c1af8#ht_6145wt_1205arguendohttps://www.blogger.com/profile/16825998269688585047noreply@blogger.comtag:blogger.com,1999:blog-953397841255562532.post-75078820306299350592011-04-30T14:32:45.132+01:002011-04-30T14:32:45.132+01:00Modern radios with their wide receive/transmit ban...Modern radios with their wide receive/transmit bandwidth can't have dedicated and real input filters like their bigger/older brothers. Guess that's what cause their "low" performance, it's always a tradeoff...Ricardo - CT2GQVhttps://www.blogger.com/profile/10682005152577217807noreply@blogger.comtag:blogger.com,1999:blog-953397841255562532.post-44418702978217208922011-04-28T17:08:34.541+01:002011-04-28T17:08:34.541+01:00That's actually what I particularly liked abou...That's actually what I particularly liked about the AIO-4. It was a single box, no wires, with an SMA connector on the top. Hook up an antenna, turn it on, close the case, and you're done.<br /><br />Connect to the Bluetooth from APRSISCE on my phone, and messaging was fully available via the KISS over BT. Even with nothing connected (or with the phone connected), the AIO-4 was tracking and could also be digipeating.<br /><br />No wires, just a pelican case connected to an antenna.<br /><br />It looked like this http://www.byonics.com/mt-aio but with a larger TT4 chip instead of the little TT3. Oh, and the transceiver was larger with the transmit/receive switch through the power amp.<br /><br />I never heard a price, but it was probably in the same vicinity if not a tad more for the receive capability.<br /><br />(I hate wires too!)Lynn (D)https://www.blogger.com/profile/13946330136544635525noreply@blogger.comtag:blogger.com,1999:blog-953397841255562532.post-80076186585720741182011-04-28T16:27:28.533+01:002011-04-28T16:27:28.533+01:00Hi Alex. Yes I was very sorry to see the VX-8GR go...Hi Alex. Yes I was very sorry to see the VX-8GR go there too. But I've had my doubts about the receiver for a long time and I had to try to get to the bottom of it.<br /><br />Lynn, the Byonics unit sounds interesting, but solutions that require several different boxes connected by a multitude of cables and each with their own power supply don't really appeal to me. There are enough things to carry up a summit (or forget to carry up a summit) as it is.<br /><br />What I really need is something that runs on a device like a Windows mobile phone that is a full APRS client and has a built in AFSK packet modem that can simply be hooked into the speaker and mic ports of any handheld. Hint, hint. :)Anonymoushttps://www.blogger.com/profile/11984840704237681015noreply@blogger.comtag:blogger.com,1999:blog-953397841255562532.post-72882338079602521862011-04-28T15:42:05.046+01:002011-04-28T15:42:05.046+01:00Byonics was working on an All-In-One based on thei...Byonics was working on an All-In-One based on their TinyTrak4 which I was privileged to try out a prototype unit. Picture a TinyTrak 4 coupled to an internal GPS, a Bluetooth to Serial on the PC port, a transciever (yes, transmit AND receive) paired through a transmit relay to a 10watt power amp all packed into the same Pelican case as their current TT3-based transmit-only AIO. Oh, and powered by 8 AA cells also packed inside the case.<br /><br />It was a nice unit, but apparently the transceiver/TT4 didn't appreciate being in close proximity to the RF from the amp. It worked really well on lower power in my testing (and pairs well with APRSISCE/32 as well), but when I dialed up the power, apparently things didn't work out so well.<br /><br />They're going back to see how they can fix it, but I have no idea when it might be available again.<br /><br />With the TT4 internal, it could be a standalone digipeater, with the GPS it was a self-contained tracker, with the Bluetooth link, you could mount it up a tree and still connect a mobile Internet-capable device via Bluetooth to bring a full-function IGate out to the field.<br /><br />I really, really wanted it to work!<br /><br />Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32Lynn (D)https://www.blogger.com/profile/13946330136544635525noreply@blogger.comtag:blogger.com,1999:blog-953397841255562532.post-19143375536155470672011-04-28T14:17:12.489+01:002011-04-28T14:17:12.489+01:00I was very sad to see my lovely VX8 at the bottom ...I was very sad to see my lovely VX8 at the bottom of the pile in your recent test. Trouble is as you've said it really is a nice radio for its other features. Theres only one thing for it Julian, you're just going to have to make you're own<br /><br />Oddly enough I was having a google yesterday to see if there were any homebrew plans or kits that could be used as trackers or digipeaters that didn't need a transceiver. In the short time I was looking I didn't find much. Plenty of trackers though.<br /><br />The TH205 isn't exactly pocket sized and it's probably bigger than my rucksack!Alex Hillhttps://www.blogger.com/profile/09985363196485318644noreply@blogger.com