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138 results from messages in tracker2

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  • Scott, Have you considered some sort of "Dayton Special" to keep yourself busy after Dayton ... since you'll be getting caught up prior to Dayton. ;-) ;-) David > I'll be skipping Dayton this year. Too busy trying to get caught up - > trying to build up inventory for Dayton is only going to get me further > behind on orders. > > Scott > > On 4/21/2014 8:27 AM, n9nwo@^$1 wrote...
    qrv@kd4e.com Apr 21, 2014
  • 5 ways or methods to use a transistor as a diode when a diode isn't at hand and a transistor is: Collector Base with emitter open Emitter Base with collector open Collector Emitter Short Collector Base short Base emitter Short Read more: http://www.physicsforums.com > Hello! Instead of D2, is a Q2 (2N7002) soldered on its place! > I put a 1N4148 between the regulator output and the...
    qrv@kd4e.com Feb 16, 2014
  • Cable built & jumper moved to HT position in OT3m. OT3m to HTX-202 appears to be working fine. I did not include the Pin 7 connection as I have satisfactory DC power sources direct to both devices. David KD4E >> D-Sub/DB-9 Pin ------------------------ 1 Mic (2.5mm) Tip 5 Spkr >> (3.5mm) Tip 6 Ground/Shell 7 12VDC (pins 2, 3, 4, 8, 9 are unused) >> >> I take it that the 2.2k PTT...
    qrv@kd4e.com Jan 12, 2014
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  • It may be helpful for the graphic to indicate that providing DC via Pin 7 is optional. I was guessing that but have learned it is best not to assume. Thanks! > As per the information provided on page 9 of the OT3 user manual, > the HT jumper is used to engage the built in resistor required for > this type of application. > > Between those two pages, they tell you that you can...
    qrv@kd4e.com Jan 11, 2014
  • Is this pin-out correct, please? I want to try a test cable before I buy one to see if the HTX-202 will be adequate for APRS here. Also, the purpose of the DC on Pin 7 is unclear. David > D-Sub/DB-9 > Pin > ------------------------ > 1 Mic (2.5mm) Tip > 5 Spkr (3.5mm) Tip > 6 Ground/Shell > 7 12VDC (pins 2, 3, 4, 8, 9 are unused) > > I take it that the 2.2k PTT resistor is inside...
    qrv@kd4e.com Jan 11, 2014
  • ...tracker signals PTT by connecting the mic audio and ground lines > through a 2.2k resistor. > > Scott > > On 1/10/2014 10:51 AM, qrv@^$1 wrote: >> I've looked at this cable for use between my OT3m and HTX-202: >> >> https://www.argentdata.com/catalog/product_info...
    qrv@kd4e.com Jan 10, 2014
  • I've looked at this cable for use between my OT3m and HTX-202: https://www.argentdata.com/catalog/product_info.php?products_id=141 Where is PTT, please? Thanks! -- David (NOT Dave) Colburn, KD4E - Nevils, Georgia USA Safe & Secure Search Engine: duckduckgo.com Android for Hams: groups.yahoo.com/group/hamdroid Creative Tech: groups.yahoo.com/group/ham-macguyver Raspi Alternative...
    qrv@kd4e.com Jan 10, 2014
  • Timing and symptoms suggest a bad cap? > I had my older T2-135 do that when I fired it up after being idle for more > than a year - wound up having to: > Download a new OTWINCFG > Disable Turbo > > Now the only problem is that the receive side appears to be deaf. > > Clay > N7QNM -- David (NOT Dave) Colburn, KD4E - Nevils, Georgia USA Safe & Secure Search Engine: duckduckgo.com...
    qrv@kd4e.com Dec 31, 2013
  • ...as-mentioned I'd like to encourage more APRS usage here & a locally-accessible digi may help. > On Sat, Dec 28, 2013 at 1:33 PM, qrv@^$1 wrote: > >> I have this old iPaq here collecting dust & wondered if it might be >> repurposed as part of a portable digipeater...
    qrv@kd4e.com Dec 28, 2013
  • I have this old iPaq here collecting dust & wondered if it might be repurposed as part of a portable digipeater+? It may see occasional ARES use to send a quick message but mainly as a quick manual location reset (without bothering with a GPS) emergency APRS digi in an area with few APRS resources. I'd hook it to a HTX-202 handheld and probably an OT3m. I've read some references to...
    qrv@kd4e.com Dec 28, 2013