I have now operated K2 S/N 4751 for about a month and everything seems to work pretty good. I am mainly a PSK and RTTY operator and I would like to know if others have had the same experience about the K2 with PSK.
The narrow band width with PSK requires a stable radio. I see sporatic cases on receive where a station transmits a "waterfall" line and then stops to receive a signal. When the station restarts transmitting again, the K2 receiver has drifted about 1/3 the width of the average waterfall line. This drift (10-20 HZ I think) requires me to reclick on the waterfall line to recenter the cursor so Digipan 1.6 can continue to decode the "waterfall line" information. Last night , I got a similar report on transmit as well. The effect appears sporatic. Right now, this is an bother - not a fatal defect, BUT my old ICOM 706MIIG never exhibited this drift . So has anybody seen this effect before. Obviously, CW, SSB and RTTY seem unaffected by this drift. * Is this drift normal for the K2? * If not, can I reposition the thermal sensor card (i.e., tilt it slightly) to get better performance? * Also, at what power levels do most people run a barefoot K2 in PSK? (I get slight heating of the heat sink (~100F) and I am thinking that the heat effects the PLL)? 73, Les WA3SGZ _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
