[Elecraft] Low sensitivity on K2...

I have two K2s, and I find on one of them that the sensitivity is much lower. I see this when doing a test with an XG1 signal generator. The problem is that the low sensitivity rig is one that I bought built, while the one that works fine is a rig I built myself. I have tried to reallign the rig,

Re: [Elecraft] Low sensitivity on K2...

Robin, What filter were you using when doing the sensitivity measurements? Did you use the same filter width for each? If they both have the KSB2 installed, try doing a comparison with the OP1 filter selected. Is one K2 above SN 3000 and the other below 3000? If so, yes there may be

Re: [Elecraft] Low sensitivity on K2...

Thanks for the replies. I can try to answer as follows: The good rig is in the 3800 series, and has: KDSP2, KAT2, KBT2, KSB2, KNB1, K160RX, KIO2 The weak rig is 5900 series and has: KAF2, KPA100, KSB2, KNB1, K160RX, KIO2 I have used spectogram, but not for the 5900 series rig. I did a quick