High s-meter levels on the vhf band when unplug the antenna
Posted: Tue Jan 30, 2024 9:07 pm
Hi.
As this is my first post, I would like to thank the developers of this fantastic software.
I uploaded opengd77 to TYT MD-9600 a few weeks ago.
Recently I noticed that I have a strange symptom in the 2m band.
When no one is transmitting on the channel, the S-meter level shows about S2 (-122dBm). At first I thought it was local interference. It turned out that this interference enters along the screen of the antenna cable to the radio. When I unplug the antenna cable, S1 (-126dBm).
The maximum is at 144,000 MHz: S5 (109dBm) for the radio without the cable and antenna.
Have any colleagues had similar symptoms? The device is almost new (2 months old). I will ask for a hint on what to do about it.
Sławek
SQ2HCZ
As this is my first post, I would like to thank the developers of this fantastic software.
I uploaded opengd77 to TYT MD-9600 a few weeks ago.
Recently I noticed that I have a strange symptom in the 2m band.
When no one is transmitting on the channel, the S-meter level shows about S2 (-122dBm). At first I thought it was local interference. It turned out that this interference enters along the screen of the antenna cable to the radio. When I unplug the antenna cable, S1 (-126dBm).
The maximum is at 144,000 MHz: S5 (109dBm) for the radio without the cable and antenna.
Have any colleagues had similar symptoms? The device is almost new (2 months old). I will ask for a hint on what to do about it.
Sławek
SQ2HCZ