UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Help with FM tuner Signal injection/probing

Oldcodger · 9th May 2019, 10:24 pm

Interesting mix of ideas on looking at tuning patterns using a sweep generator and a tuner. Standard production method on the Marconi Clansman 353 was to use a x10 scope probe on the output. But in my time in the repair are ( we were a small team refurbishing Army returns) , we did an experiment tuning receivers using a x10 scope probe and a length of Coax with two clips. The test was carried out on a complete radio, and we found that we got a better response from the radio in receive by using the coax with clips.

9th May 2019, 10:24 pm	#4
Oldcodger Nonode Join Date: Oct 2014 Location: West Midlands, UK. Posts: 2,181	Re: Help with FM tuner Signal injection/probing Interesting mix of ideas on looking at tuning patterns using a sweep generator and a tuner. Standard production method on the Marconi Clansman 353 was to use a x10 scope probe on the output. But in my time in the repair are ( we were a small team refurbishing Army returns) , we did an experiment tuning receivers using a x10 scope probe and a length of Coax with two clips. The test was carried out on a complete radio, and we found that we got a better response from the radio in receive by using the coax with clips.