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#1
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Dittel KRT2 disfunction
Last week, after a few months of proper functioning, the new KRT2 radio
I have installed this spring suddenly stopped transmitting. Pressing the PTT button makes it send a carrier wave, but without any modulation. The receiving section is OK, though. Anyone run into the same problem? Any hints about the probable cause? Thanks, Okko (Netherlands) |
#2
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Dittel KRT2 disfunction
On Wed, 24 Aug 2016 21:45:09 +0200, okko kloosterman wrote:
Last week, after a few months of proper functioning, the new KRT2 radio I have installed this spring suddenly stopped transmitting. Pressing the PTT button makes it send a carrier wave, but without any modulation. The receiving section is OK, though. Anyone run into the same problem? Any hints about the probable cause? Thanks, Okko (Netherlands) My then-new KRT2 did that when I first installed it in my glider, back in early 2015. It went back to Germany on warranty and has been fine ever since. The problem seemed to be internal, somewhere between the microphone amplifier and the RF section of the transmitter. I say this because the unmodulated CW was quite strong and, when the radio was in MIC Setup mode, I could see the signal level bar responding to speaking at or tapping the microphone. -- martin@ | Martin Gregorie gregorie. | Essex, UK org | |
#3
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Dittel KRT2 disfunction
My 2013 model now transmits a squeal when the PTT pressed. It transmits voice OK but sends squeal in all the silences. Swapping radio and aerial between it and an Icom confirms that it isn't caused by the glider aerial, microphone or wiring and seems to be internal.
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#4
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Dittel KRT2 disfunction
Thank you Martin, for your information.
I think I'll have my device sent back tot the manufacturer for repair, it's less than 8 months old, so still under warranty. Bur first I will check the microphone setup, as you described. Okko Op 24-8-2016 om 22:55 schreef Martin Gregorie: On Wed, 24 Aug 2016 21:45:09 +0200, okko kloosterman wrote: Last week, after a few months of proper functioning, the new KRT2 radio I have installed this spring suddenly stopped transmitting. Pressing the PTT button makes it send a carrier wave, but without any modulation. The receiving section is OK, though. Anyone run into the same problem? Any hints about the probable cause? Thanks, Okko (Netherlands) My then-new KRT2 did that when I first installed it in my glider, back in early 2015. It went back to Germany on warranty and has been fine ever since. The problem seemed to be internal, somewhere between the microphone amplifier and the RF section of the transmitter. I say this because the unmodulated CW was quite strong and, when the radio was in MIC Setup mode, I could see the signal level bar responding to speaking at or tapping the microphone. |
#5
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Dittel KRT2 disfunction
On Thu, 25 Aug 2016 15:49:14 +0200, okko kloosterman wrote:
Thank you Martin, for your information. I think I'll have my device sent back tot the manufacturer for repair, it's less than 8 months old, so still under warranty. Bur first I will check the microphone setup, as you described. Okko Sounds like the right sequence to me. I'd reinstalled the ATR-500 that the KRT2 replaced because I didn't know how long the repair might take. So, I was pleasantly surprised to get the radio back much faster than I expected because it went back to Dittel via the UK agent. -- martin@ | Martin Gregorie gregorie. | Essex, UK org | |
#6
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Dittel KRT2 disfunction
Today, I tried again and switched the radio on to have a look at the
microphone setup page. To my surprise the transmission was functioning normally, as if there hadn't been any problem at all... Most probably it has been a software issue, simply solved by a restart/reset of the radio. One should think of that when using computer-driven devices ;-) Okko (never to old to learn) |
#7
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Dittel KRT2 disfunction
Op woensdag 24 augustus 2016 21:45:40 UTC+2 schreef okko kloosterman:
Last week, after a few months of proper functioning, the new KRT2 radio I have installed this spring suddenly stopped transmitting. Pressing the PTT button makes it send a carrier wave, but without any modulation. The receiving section is OK, though. Anyone run into the same problem? Any hints about the probable cause? Thanks, Okko (Netherlands) We have the same. Ans some club members experience this problem too. Before transmitting, we switch the radio off and on again. Then the radio transmits again for a while. De KRT2 2nd edition seems not to have this problem. |
#8
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Dittel KRT2 disfunction
To add to this thread I am helping a friend with exactly the same issue.
Carrier is strong but without audio. I replaced the mic but without effect. No signal shown in the mic setup screen. Anyone know of a US repair shop? |
#10
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Dittel KRT2 disfunction
John
Last year my Dittel had a similar no transmit problem. I downloaded the user manual available online and fixed it in the troubleshooting chapter. Do you have the manual? Nick T |
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