|O I've observed that when behaving like this, setting the Freq to around 26.775~26.875Mhz seems to generate in reality on 27.175 I made a short video as well to present the issue: Operator manual and the RLN-4120 Service Manual can be found below. After modifying around the frequency by repeated times sometimes it comes back to reality, sometimes not. The test rig is connected to my Yaesu FT817 on the same 27.175Mhz - First everything seems fine, the generator works as well as the receiver part in the test rig - After I modify the frequency (does the same if i modify by the rotary encoder, the keypad or even if i recall another preset) the generator and the monitor does not work anymore on the new frequency or even on the old one. Hi all, I've recently got an Motorola R2600B communications test set and few days ago I've started to encounter the next issue: - I set the frequency on the generator to 27.175Mhz and copy it to the monitor as well. Motorola R2600 Communications System Analyzer VCO/PLL issue
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