David M. Simolo
Well-Known Member
I am going to start a thread with the confession that I don't know much about radio use. I am probably premature with posting this now but it might help me narrow down my search for the problem.
I have a Triumph-LS and a Triumph-2 as a base using the HPT435BT radio. I have both these antennas:
1. UHF Whip Antenna 450-470 MHz, 1/2, 2.5dB, TNC (the one I use most lately)
2. HF Antenna 450-470 M Hz, 5/8, 5 dBd gain, NMO with the ground plane disk
On about 4 occasions now towards the end of the afternoon I have had the radio link to the LS start fading and then disappear over the course of about 5 minutes or less. Sometimes while this is happening the radio will fade in and out but I think typically there are no hertz of communication happening.
This has always been on 35 watt output. The first time it happened was wintery, with no fan running. After the second time, I have been using a fan. I have never observed any components that seemed warm to me although the weather has been generally quite cool yet.
I run this off of a marine deep cycle battery. I forgot to check the voltage this last time but once I checked it and is seemed reasonable (I know this is a weak statement but I don't recall the details).
Yesterday this all happened again. I took the LS back to the base, still no communication. It had been a few minutes since it stopped working but the fan output was not at all warm. I did not reboot anything but I went through the base-rover setup again, successfully. It didn't provide communications and failed immediately with an STN solution. I had a lot of customer distractions at the moment and was on a schedule so I couldn't pay as much attention as I would have liked to the details of what was going on.
At some point I will probably want to add the capability of receiving my corrections over the internet but have not taken that step yet.
As a side note, I have been extremely impressed with this Javad setup. I work in GPS-poor environments a lot and have generally been able to use the LS to get the work done. I have had the occasion recently to get it out into some more open environments and it really screams through the shots.
Any thoughts anyone?
Thanks much in advance, the support here has been great.
Dave.
I have a Triumph-LS and a Triumph-2 as a base using the HPT435BT radio. I have both these antennas:
1. UHF Whip Antenna 450-470 MHz, 1/2, 2.5dB, TNC (the one I use most lately)
2. HF Antenna 450-470 M Hz, 5/8, 5 dBd gain, NMO with the ground plane disk
On about 4 occasions now towards the end of the afternoon I have had the radio link to the LS start fading and then disappear over the course of about 5 minutes or less. Sometimes while this is happening the radio will fade in and out but I think typically there are no hertz of communication happening.
This has always been on 35 watt output. The first time it happened was wintery, with no fan running. After the second time, I have been using a fan. I have never observed any components that seemed warm to me although the weather has been generally quite cool yet.
I run this off of a marine deep cycle battery. I forgot to check the voltage this last time but once I checked it and is seemed reasonable (I know this is a weak statement but I don't recall the details).
Yesterday this all happened again. I took the LS back to the base, still no communication. It had been a few minutes since it stopped working but the fan output was not at all warm. I did not reboot anything but I went through the base-rover setup again, successfully. It didn't provide communications and failed immediately with an STN solution. I had a lot of customer distractions at the moment and was on a schedule so I couldn't pay as much attention as I would have liked to the details of what was going on.
At some point I will probably want to add the capability of receiving my corrections over the internet but have not taken that step yet.
As a side note, I have been extremely impressed with this Javad setup. I work in GPS-poor environments a lot and have generally been able to use the LS to get the work done. I have had the occasion recently to get it out into some more open environments and it really screams through the shots.
Any thoughts anyone?
Thanks much in advance, the support here has been great.
Dave.