[Elecraft] N8LP vs. Elecraft IF Output Buffer Gain Mod

2011-09-26 Thread Roger Marrotte
I'm thinking about getting a P3. My K3 has the N8LP IF Output mod. Should I undo the N8LP mod and do the Elecraft IF Output Buffer Gain Mod? Those SMT resistors aren't getting any bigger as I get older. I do have a good lighted magnifying lens and the tools required to do the SMD changes

Re: [Elecraft] N8LP vs. Elecraft IF Output Buffer Gain Mod

2011-09-26 Thread Bill W4ZV
Roger Marrotte-2 wrote: I'm thinking about getting a P3. My K3 has the N8LP IF Output mod. Should I undo the N8LP mod and do the Elecraft IF Output Buffer Gain Mod? Probably not necessary. I've had K3s with both mods and had no issues with either one. 73, Bill -- View this message

Re: [Elecraft] IF output buffer gain Mod

2010-03-02 Thread ab2tc
Hi, Via means by way of as in via airmail. In this case we route from one side of the board to the other (or from one layer to another) via a feedthrough as they used to be called. In this day of shortforms and acronyms they are universally simply called via's. AB2TC - Knut Radio Amateur N5GE

[Elecraft] IF output buffer gain Mod

2010-03-01 Thread DBellW6AQ
So I see how to attach it but have no idea what a via is? I built a KX 1 without ever running into a via I think. And if you can see the via used to anchor one lead of the resistor in the photograph that is in the instructions you have either better eyes or a better imagination than I do.

Re: [Elecraft] IF output buffer gain Mod

2010-03-01 Thread Joe Planisky
Hi Dave, A via is a small hole in the circuit board used to connect traces from the top side of the board to the bottom. There's a small hollow metal insert in them that connects the two sides of the board (called plated through vias) They're usually smaller than a typical component

Re: [Elecraft] IF output buffer gain Mod

2010-03-01 Thread Radio Amateur N5GE
On Mon, 1 Mar 2010 23:49:14 EST, dbellw...@aol.com wrote: So I see how to attach it but have no idea what a via is? I built a KX 1 without ever running into a via I think. And if you can see the via used to anchor one lead of the resistor in the photograph that is in the instructions you

Re: [Elecraft] IF Output Buffer Gain Mod

2009-10-14 Thread Jack Smith
Before the recent change in the IF sample circuit, the transfer gain was around -15 to -17 dB. In other words, a signal input to the antenna will appear at the IF sample port about 15 dB below the input level. This assumes the K3's preamplifier is off and, of course, that the K3 is tuned to

[Elecraft] IF Output Buffer Gain Mod

2009-10-13 Thread Ken K3IU
G'morning: Tomorrow I am going to make this mod on the K3 of a friend. To try to see what difference it makes, I though I'd look at the IF signal on a scope before and after. I have looked at the output on a modified K3 (mine) and it looks like about 2.5 mV (P-P). Does that look about the

Re: [Elecraft] IF Output Buffer Gain Mod

2009-10-13 Thread Don Nelson
Ken K3IU wrote: G'morning: Tomorrow I am going to make this mod on the K3 of a friend. To try to see what difference it makes, I though I'd look at the IF signal on a scope before and after. I have looked at the output on a modified K3 (mine) and it looks like about 2.5 mV (P-P). Does

Re: [Elecraft] IF Output Buffer Gain Mod

2009-10-13 Thread Duncan Carter
Don Nelson wrote: Ken K3IU wrote: G'morning: Tomorrow I am going to make this mod on the K3 of a friend. To try to see what difference it makes, I though I'd look at the IF signal on a scope before and after. I have looked at the output on a modified K3 (mine) and it looks like about

Re: [Elecraft] IF Output Buffer Gain Mod

2009-10-13 Thread Andrew Faber
- Original Message - From: Don Nelson n...@comcast.net To: Ken K3IU kenk...@cox.net Cc: Elecraft Reflector elecraft@mailman.qth.net Sent: Tuesday, October 13, 2009 10:27 AM Subject: Re: [Elecraft] IF Output Buffer Gain Mod Ken K3IU wrote: G'morning: Tomorrow I am going to make this mod