Re: [Elecraft] [KX3] RS232 xcvr control when serial ports are occupied

2018-07-15 Thread Stephen Rector via Elecraft
ote: > > Sorry about the pin typo. Look at the cable link for the steppIR that Dick > K6KR sent and that will be obvious. I was looking at that diagram when I > typed my response, but did not proof it. > TXD is really pin 3. > > 73, > Don W3FPR > > On 7/8/2018 7:24 PM, S

Re: [Elecraft] [KX3] RS232 xcvr control when serial ports are occupied

2018-07-08 Thread Stephen Rector via Elecraft
but from the explicit signals > separate from TXD and RTS. > > Note that the KX3 (and most other Elecraft products) rely only on TXD and > RTS, which are reserved for data transmission only in the RS-232 scheme of > things. > > 73, > Don W3FPR > > On 7/8/2018 4:5

Re: [Elecraft] [KX3] RS232 xcvr control when serial ports are occupied

2018-07-08 Thread Stephen Rector via Elecraft
e 3.5mm connector to the > KXPA100. > > http://www.steppir.com/wp-content/uploads/2011/10/Y-Cable.pdf > > 73 de Dick, K6KR > > > -Original Message- > From: elecraft-boun...@mailman.qth.net On > Behalf Of Stephen Rector via Elecraft > Sent: Sunday, Jul

Re: [Elecraft] [KX3] RS232 xcvr control when serial ports are occupied

2018-07-08 Thread Stephen Rector via Elecraft
5mm stereo plug and two 3.5mm > stereo jacks if using the KXUSB. > If you are using the KXSER cable instead, yes, you can connect a "Y" DB9 > splitter to the DB9 end of the KXSER cable - the computer connects to one > side and the magloop controller connects to the other side of th

[Elecraft] [KX3] RS232 xcvr control when serial ports are occupied

2018-07-08 Thread Stephen Rector via Elecraft
Hy home station is a KX3 + KPXA100, and I can control the radio via the RS232 port on the KXPA. However, recently I added a Ciro Mazzoni magloop to the station, and its controller plugs in to the KXPA serial port to sniff for frequency information, allowing re-tuning on the fly. This leaves no

[Elecraft] KX3 #1690 observations

2012-09-16 Thread Stephen Rector
Hi All: I received my KX3 s/n 1690 about 10 days ago and have been putting it to work on many modes. It's got best receiver I've ever used, although the highest end xcvr I've owned previous to it was a TS850 with narrow filters - not quite high-end compared to the $5K radios on today's market.

[Elecraft] Devices for upcoming KX3 PA

2012-08-12 Thread Stephen Rector
I've got a KX3 on order, with the idea of replacing my K2-100 as the primary radio at home. So, the PA is something I'll be watching for. I wonder what Wayne and others think about using push-pull mosfet finals as opposed to the BJT used in the K2-100 PA. Mosfets are almost universally used in

[Elecraft] K2 modification of the variable BW Cohn CW crystal filter

2011-07-17 Thread Stephen Rector
I ve been using me K2 (s/n 6770) in the digital modes lately and have wanted to make an improvement in the passband ripple, which is almost 10 dB p-p when the BW is set at 2 KHz, with the RX audio viewed spectrally. So I simulated the filter using the crystal parameters given here:

[Elecraft] MH2 Mic issue

2009-07-26 Thread Stephen Rector
Hi All: I'm new to this list. As of last week, my K2 s/n 6770 is up and running - I'm quite happy with it. Even though I have a stealth sloper to a pine tree (HOA restriction), the receiver has impressed me, and the QRP gets out (next weekend's board is the 100W PA). This weekend I got

[Elecraft] K2 CAL_FIL and the BFO

2009-07-26 Thread Stephen Rector
I'm new to the list, with a couple of questions on the K2. My s/n 6770 has been running for about a week: this weekend put in the KSSB2, KDSP2 and KNB2. When I select from the four CW xtal filter bandwidths, I get a slightly different pitch on the received CW station. Qusetion 1: Is that

Re: [Elecraft] K2 CAL_FIL and the BFO

2009-07-26 Thread Stephen Rector
and above, the VFO is on the low side - that is what causes the sideband inversion. If you prefer to listen to CW in LSB for all the bands, then switch to CW reverse for 15, 12 and 10 meters. Stephen Rector wrote: I'm new to the list, with a couple of questions on the K2. My s/n 6770 has been

[Elecraft] Fwd: MH2 Mic issue

2009-07-26 Thread Stephen Rector
Begin forwarded message: From: Stephen Rector azstef...@mac.com Date: July 26, 2009 5:26:51 PM GMT-07:00 To: d...@w3fpr.com Subject: Re: [Elecraft] MH2 Mic issue Message-Id: 32086425-1687-4f48-8559-b91c3895b...@mac.com In-Reply-To: 4a6cee8d.2070...@w3fpr.com Content-Type: text/plain