Scores of people have complained about the interference

The Tetra mast at Dursley was switched on last week for tests - but residents have complained about a loss of TV signals ever since.

Tetra is the new communications system for the police force, aimed at replacing radio.

Communications company O2 has admitted the problem is being caused by the new base station.

O2 admits the mast is at fault

But the company says it is transmitting within frequencies given by the Radiocommunications Agency.

The two groups are now in discussions to decide who will pay for the problem to be corrected.

The government insists the masts are safe, but residents are concerned about their health implications.

Graham Morgan said: "Obviously something has been omitted from it because it is reaching here and blocking the aerial - I am naturally concerned for our health."

Anti-Tetra campaigner Lynne Edmunds has been monitoring radiation levels in the town.

She said: "Before, I did not find any sign of radiation close to the masts or close to the houses.

"But in the last week I have been finding spots of radiation."