The TK7180 service manual states that you just input fixed default values for the front end softpots?
This suggest that NO further alignment is required.
Has anybody managed to obtain better sensitivity by adjusting the default values?
With other radios I have found that front end alignment is very broad so small changes in softpot values makes no difference...I guess this must be the same for the TK7180 otherwise why have fixed default values?
With my TK3180 hand portable it appears that the radio was set up for "exactly" 119dBm for 12dB SINAD and no attempt was made by the factory to get better performance. I obtained a good improvement when I actually aligned it for better than 12dB SINAD. But the TK3180 did not use 100% fixed default values as with the TK7180!!!
So can I get better RX performance from my TK7180 be doing a careful front end alignment or is it a waste of time?
Thanks
This suggest that NO further alignment is required.
Has anybody managed to obtain better sensitivity by adjusting the default values?
With other radios I have found that front end alignment is very broad so small changes in softpot values makes no difference...I guess this must be the same for the TK7180 otherwise why have fixed default values?
With my TK3180 hand portable it appears that the radio was set up for "exactly" 119dBm for 12dB SINAD and no attempt was made by the factory to get better performance. I obtained a good improvement when I actually aligned it for better than 12dB SINAD. But the TK3180 did not use 100% fixed default values as with the TK7180!!!
So can I get better RX performance from my TK7180 be doing a careful front end alignment or is it a waste of time?
Thanks