Yes and no. The transmitted phase noise on the K2/100 is well within FCC regs. However, when driving a 1.5 KW linear in close proximity (few miles line-of-sight) to other contesters, it was bothersome for weak signal reception. That was the primary reason I abandoned the K2/100 for SO2R and contesting (at home) in general. As you know, it has an excellent receiver and handles DX and contest expedition pile-ups excellently. It just isn't friendly with other close-by receivers when running > QRP. It should be fine if you do another QRP contest expedition. ;>) 73, Ed - W0YK
_____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kenneth Silverman Sent: Sunday, 05 October, 2008 07:53 To: [email protected] Subject: [Elecraft] K2 Transmitted Phase Noise? Do K2/100's have a known transmitted phase noise issue? I looked at the reflector archives, and there was some comment by K6SE (SK) in 2005 that seemed to indicate there was, but the scenario seemed rather specific. Last year as C6ATA I ran in-band SO2R on 40m using a K2/100 (s/n 2773) and a TS-850. Both were low power. The antennas were verticals on the beach, and a dipole about 400' away. When transmitting on the TS-850, I could listen to the weakest of stations on the K2 within 2 kc of the TS-850's freq. Though when transmitting on the K2, there was wide-band noise on the TS-850, covering up a layer or two of signals. It didnt matter which rig was using which antenna, the results were the same. I tend to think this was a TX phase noise issue, and not a more robust RX in the K2. Can anyone shed some light? If this is an issue, is there any resolve? Many thanks, Kenny K2KW
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