Tim-B
Member
Okay, so I have a BCD436HP connected via a usb cable to a laptop running ProScan and I have it setup to look for new previously unidentified talkgroups on a 700 MHz trunked system. The 436 also has a wire from its headphone jack to the laptop's mic input so it can record traffic on any new talkgroups found. I also have a set of speakers connected to the laptop. Ok, so far so good. Now I also have a 396XT running by itself on batteries - no wires connected to anything and it is monitoring known talkgroups on the same system. Okay, with me so far?
Now, here is the weird part:
When the 396 receives a talkroup I can faintly hear that traffic on the computer speakers that are plugged into the laptop. The 436 which is actually connected to the laptop is NOT receiving this talkgroup but is sitting there silently while looking for new talkgroups. If I turn the computer speakers all the way up I can hear the 396's talkgroup clearly and at the end of the transmission I get this weird echo with reverb effect that fades out as it repeats like:
"Are you at the station the station the station the station the station the station the station?" with each "the station" being a little lower in volume unitl it fades completely. Then there this high pitched whine like feedback between a speaker and mic too close to each other begins and gets louder and louder until I turn the speaker down.
Now remember the 396 is not connected to anything by wires. It is on its own running on batteries. Only the 436 is connected to the laptop and it is not receiving that talkgroup because it is looking for new unidentified talkgroups.
Any ideas on what it going on?
Now, here is the weird part:
When the 396 receives a talkroup I can faintly hear that traffic on the computer speakers that are plugged into the laptop. The 436 which is actually connected to the laptop is NOT receiving this talkgroup but is sitting there silently while looking for new talkgroups. If I turn the computer speakers all the way up I can hear the 396's talkgroup clearly and at the end of the transmission I get this weird echo with reverb effect that fades out as it repeats like:
"Are you at the station the station the station the station the station the station the station?" with each "the station" being a little lower in volume unitl it fades completely. Then there this high pitched whine like feedback between a speaker and mic too close to each other begins and gets louder and louder until I turn the speaker down.
Now remember the 396 is not connected to anything by wires. It is on its own running on batteries. Only the 436 is connected to the laptop and it is not receiving that talkgroup because it is looking for new unidentified talkgroups.
Any ideas on what it going on?