ETMegabyte
Member
So I've been beating my head against the wall here...
There are a number of local DMR repeaters on VHF locally, and I wanted to listen in on them (or one, or whatever)... I'm sorta considering getting a DMR capable radio, but I want to see what kind of traffic is around on the DMR repeaters before I spend the money...
So here's what I have:
1) A fairly hefty computer - certainly plenty enough to run DSDPlus
2) A Signalink USB
3) A Yaesu FT-5100 VHF/UHF mobile radio
4) Stubbornness
I used an unterminated cable from Tigertronics to wire my Signalink USB to the 3.5mm data jack on my FT-5100. I also have a cable for my HF radio. I noticed that my HF radio works as expected, tx and rx levels on the signalink are around 9:00 to 10:00 positions, just like everyone else, and audio is just right. but on the Yaesu, the audio coming out of it is very low, and the transmit level is also low. So low that I have to raise the rx and tx knobs all the way to max for it to work. This has been fine for PSK125 work that I do on some of the local VHF repeaters, however...
When trying to record audio from it, I noticed that the Signalink actually produces quite a bit of hissing sound behind the audio when the rx audio level is maxed out. And the audio level is low. So low, that the hiss from the signalink is just about as loud as the audio I'm trying to record. When I turn down the signalink to a more normal level, the hiss goes away, but now the audio from my Yaesu is almost inaudible. And DSDPlus does not even acknowledge anything when the repeaters key up.
On the other hand, I have a scanner, and using the headphones output, into the signalink, with the rx level at a reasonable level, I can get DSDPlus to respond every time a DMR repeater keys up. However, I presume that because there's no discriminator tap in the scanner (and I'm not skilled enough to put one in - I already ruined one scanner trying), this is what I get:
Sync:+DMR
+DMR slot2 BS DATA ERR2 CC=2 Idle
Sync: no sync
Sync:+DMR
+DMR CACH ERR slot1 BS DATA ERR3 CC=2 Unknown TypeC
Sync: no sync
Sync:+DMR
+DMR CACH ERR slot1 BS DATA ERR2 CC=3 Idle
+DMR slot1 BS DATA ERR3 CC=0 Unknown TypeF
Sync: no sync
Do I need a discriminator tap to decode DMR? Anyone ever used the data i/o on the back of a FT-5100 and know how to raise the audio output level a bit? Anyone ever run into this or have any ideas how to proceed?
There are a number of local DMR repeaters on VHF locally, and I wanted to listen in on them (or one, or whatever)... I'm sorta considering getting a DMR capable radio, but I want to see what kind of traffic is around on the DMR repeaters before I spend the money...
So here's what I have:
1) A fairly hefty computer - certainly plenty enough to run DSDPlus
2) A Signalink USB
3) A Yaesu FT-5100 VHF/UHF mobile radio
4) Stubbornness
I used an unterminated cable from Tigertronics to wire my Signalink USB to the 3.5mm data jack on my FT-5100. I also have a cable for my HF radio. I noticed that my HF radio works as expected, tx and rx levels on the signalink are around 9:00 to 10:00 positions, just like everyone else, and audio is just right. but on the Yaesu, the audio coming out of it is very low, and the transmit level is also low. So low that I have to raise the rx and tx knobs all the way to max for it to work. This has been fine for PSK125 work that I do on some of the local VHF repeaters, however...
When trying to record audio from it, I noticed that the Signalink actually produces quite a bit of hissing sound behind the audio when the rx audio level is maxed out. And the audio level is low. So low, that the hiss from the signalink is just about as loud as the audio I'm trying to record. When I turn down the signalink to a more normal level, the hiss goes away, but now the audio from my Yaesu is almost inaudible. And DSDPlus does not even acknowledge anything when the repeaters key up.
On the other hand, I have a scanner, and using the headphones output, into the signalink, with the rx level at a reasonable level, I can get DSDPlus to respond every time a DMR repeater keys up. However, I presume that because there's no discriminator tap in the scanner (and I'm not skilled enough to put one in - I already ruined one scanner trying), this is what I get:
Sync:+DMR
+DMR slot2 BS DATA ERR2 CC=2 Idle
Sync: no sync
Sync:+DMR
+DMR CACH ERR slot1 BS DATA ERR3 CC=2 Unknown TypeC
Sync: no sync
Sync:+DMR
+DMR CACH ERR slot1 BS DATA ERR2 CC=3 Idle
+DMR slot1 BS DATA ERR3 CC=0 Unknown TypeF
Sync: no sync
Do I need a discriminator tap to decode DMR? Anyone ever used the data i/o on the back of a FT-5100 and know how to raise the audio output level a bit? Anyone ever run into this or have any ideas how to proceed?
