Re: [DSTAR_DIGITAL] Quick Check of Repeater Frequency
Nate, You are a funny guy.I like your humor. Easier said than done. Still questions Easy, simple connect ask. As of today I have do not a IC-UT18 installed in the radio. But what I looked up is below: DSTAR.org W3EOC Pocopson PA 445.07500MHz -5.000 Recent ARCC Coordination Actions Actions as of Feburary 18, 2010 http://www.arcc-inc.org/arc-actions.html Modified Digital Repeater Coordination 445.06875- W3EOC Pocopson, PA ARCC EPA / SNJ Coordinated Repeater Database Listed by Frequency January 15, 2010 http://www.arcc-inc.org/arc-fdbas.html PA / Chester / Pocopson 445.0750 – W3EOC CCAR Yeah, I opened Pandora's box, went to a repeater councils list and CCAR D-Star Repeaters Chester county Pennsylvania's first coordinated D-Star repeaters On the air since May 25, 2007 W3EOC at Pocopson, Pennsylvania, (Central and Southern Chester County) our full stack includes a gateway: Call Sign Output Frequency Offset (MHz) Mode W3EOC A 1255.5000 MHz +12 DV W3EOC B 445.006875 MHz -5 DV http://www.w3eoc.org/dstarrepeaters Thanks, :-) Tom Kb3hg Ask the owner? :-) Nate WY0X
[DSTAR_DIGITAL] Re: ID800 High power DV transmit issue- More info
So I took the radio our of the truck and plugged in into the control head and power supply for my other 800 in the house and it worked fine. Therefore the radio itself must be fine, meaning that the SWR of the system in the truck is high and/or the power supply in the truck is problematic. I did notice that when the truck is running, the power to the rig is a bit high (14.5V). When keyed on high power and when the truck is off, voltage drops from 12V to 11.6V. I think I might need to invest in a voltage regulator. Any suggestions? 73 de Bud W0RMT
[DSTAR_DIGITAL] Re: ID800 High power DV transmit issue- More info
So I took the radio our of the truck and plugged in into the control head and power supply for my other 800 in the house and it worked fine. Therefore the radio itself must be fine, meaning that the SWR of the system in the truck is high and/or the power supply in the truck is problematic. No, you can't say that until you also take the radio from the house and run it in the truck for a while and experience the same problem. The conditions are not the same as you point out in your next paragraph... I did notice that when the truck is running, the power to the rig is a bit high (14.5V). When keyed on high power and when the truck is off, voltage drops from 12V to 11.6V. I think I might need to invest in a voltage regulator. Any suggestions? Any over-power, over-voltage, over-reflected power, etc., fault that might be occuring will be worsening (or caused by) a higher supply voltage. Your truck radio could be just enough more sensitive to not tolerate as much of a fault as your house radio. I think 14.5 v is pretty common, but you could have spikes, especially in a truck, depending on your voltage regulator. You could try a power line filter, or just a good choke. Anyone who thinks mobile amateur radio is simple has not tried it! 73-John http://www.ke5c.net/mobile/
[DSTAR_DIGITAL] Re: ID800 High power DV transmit issue- More info
Good point, John. That will be my next step when I have a moment. Something has changed about the conditions in the truck and/or radio, as the system worked fine for 1+ years before this. Also, my D710a works fine on the same power supply in the truck. Obviously a different radio altogether, but a data point nonetheless. No, you can't say that until you also take the radio from the house and run it in the truck for a while and experience the same problem. The conditions are not the same as you point out in your next paragraph...
Re: [DSTAR_DIGITAL] Re: ID800 High power DV transmit issue- More info
I am more concerned about the 11.6 than the 14.5. You should see 13.6 at the battery with the engine running and the headlights on. 14.5 for an extended length of time will be a little hot for the car battery. My guess is a corroded connection, resistive fuse, or too small a DC power cable. Another assumption. Lets say the car battery is actually 13.6 and you meter may be reading high. Then under load you will still have around a 3 volt drop. Just a guess, and your meter may be just fine. I have seen power taps onto the battery cable become resistive and some folks even put an eye connector under the bolt connecting the cable to the battery - will work for a while. All the best, steve I did notice that when the truck is running, the power to the rig is a bit high (14.5V). When keyed on high power and when the truck is off, voltage drops from 12V to 11.6V. I think I might need to invest in a voltage regulator. Any suggestions? 73 de Bud W0RMT -- NU5D - Nickel Under Five Dollars
Re: [DSTAR_DIGITAL] ID800 High power DV transmit issue
On May 25, 2010, at 9:34 AM, w0rmt wrote: Greetings all- This morning I noticed an issue with the ID800H in my truck. When transmitting on high power (into port B of W0CDS), the unit cuts out and gives four long beeps. I initially thought it was a high SWR safety feature, but when transmitting on high on other frequencies near this one there is no problem. It seems to be working fine on low and medium power settings. Any ideas? I've never had this problem before on this rig. (I'm not near the rig right now). 73 de Bud W0RMT I believe it'll also alarm on high temperature (I hit that one once) and low/high voltages. -- Nate Duehr, WY0X n...@natetech.com facebook.com/denverpilot twitter.com/denverpilot
Re: [DSTAR_DIGITAL] Re: ID800 High power DV transmit issue- More info
On May 26, 2010, at 5:30 PM, w0rmt wrote: So I took the radio our of the truck and plugged in into the control head and power supply for my other 800 in the house and it worked fine. Therefore the radio itself must be fine, meaning that the SWR of the system in the truck is high and/or the power supply in the truck is problematic. I did notice that when the truck is running, the power to the rig is a bit high (14.5V). When keyed on high power and when the truck is off, voltage drops from 12V to 11.6V. I think I might need to invest in a voltage regulator. Any suggestions? 73 de Bud W0RMT Bud, This is going to sound stupid, but is it a Chevy/GMC? I've seen the voltage too high when the stupid ground strap needed some TLC... Could be a lot of reasons, but start with the simple stuff. Check the battery terminals for corrosion, loose connections, etc... Clean everything up and while you're there... No-Ox/PenetrOX the whole thing... (That's Mr. W0KU's pet peeve that I never did that on anything under the hood. He's made me a believer over the years. He even puts the stuff in the fuse-holders.) Probably worth a stop at any shop to have 'em throw the tester on the battery that tests the whole system under load. You may just be seeing a battery that's headed south, too. (If we're working off the What changed? theory. What's the voltage read when the engine is off?) -- Nate Duehr, WY0X n...@natetech.com facebook.com/denverpilot twitter.com/denverpilot
