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Aaron Coolidge wrote in news:cm4ceq$d31
: I just flew a '77 Arrow with a 430 and a KX170B. The reception on the 170B was FAR superior to that on the 430. I think that the old-timers that designed the 170/175 radios really had a handle on how to take care of low signal strength inputs, while the 430 designers copied the TI databook for a "118 to 135 MHz aircraft transmitter/receiver". Beyond that, the antennas can make a big difference in how a receiver performs. Very true, but still the difference is real. My '77 Arrow has a KX170B and a GX-60 (now also Garmin). The KX170B is good for another hundred miles over the GX-60. In my case it's definitely not the antenna, but the squelch. Many times ATC will not come in, or will come in very broken. Pull the squelch and they are loud and clear. Switch to the KX-170B and it works beautifully. I questioned UPSAT if the GX-60 squelch could be adjusted and was told a blunt "NO, it's fixed. Go away." jmk |
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hi
James M. Knox wrote: Aaron Coolidge wrote in news:cm4ceq$d31 : I just flew a '77 Arrow with a 430 and a KX170B. The reception on the 170B was FAR superior to that on the 430. I think that the old-timers that designed the 170/175 radios really had a handle on how to take care of low signal strength inputs, while the 430 designers copied the TI databook for a "118 to 135 MHz aircraft transmitter/receiver". Beyond that, the antennas can make a big difference in how a receiver performs. Very true, but still the difference is real. My '77 Arrow has a KX170B and a GX-60 (now also Garmin). The KX170B is good for another hundred miles over the GX-60. In my case it's definitely not the antenna, but the squelch. Many times ATC will not come in, or will come in very broken. Pull the squelch and they are loud and clear. Switch to the KX-170B and it works beautifully. I questioned UPSAT if the GX-60 squelch could be adjusted and was told a blunt "NO, it's fixed. Go away." My experience with the UPSAT guys is diefferent. They were very responsive. In the installation manual of the GX-60 you will find a way to adjust the squelch. Send me a mail if you don't have it. Maik |
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Maik wrote in :
I questioned UPSAT if the GX-60 squelch could be adjusted and was told a blunt "NO, it's fixed. Go away." My experience with the UPSAT guys is diefferent. They were very responsive. In the installation manual of the GX-60 you will find a way to adjust the squelch. Send me a mail if you don't have it. I have the manual, and it is NOT in there. I wonder if it is a capability that they added in the newer units. What version of the GX-60 is yours? [Mine is something like 2.4] jmk |
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