Re: [Elecraft] Bad crystal filter ?

2015-09-19 Thread Mike K2MK
Hi Jamie, I was just looking at the crystal filter configuration menu in the K3 Utility program and I noticed that there are check boxes for enabling the filters for DATA mode. I don't know if this is for transmit and receive or just transmit. On my K3 I have this box checked for all of my

Re: [Elecraft] Bad crystal filter ?

2015-09-19 Thread Joe Subich, W4TV
The Pitch is 650 Hz on the K3S. And the Mark for RTTY is the standard2125 Hz. PITCH should be set to the same as MARK in RTTY. 73, ... Joe, W4TV On 9/19/2015 12:49 AM, James C. Hall, MD wrote: In response to W4TV Joe's question: The frequency offset for the 8-pole crystal filter is

[Elecraft] Bad crystal filter ?

2015-09-18 Thread James C. Hall, MD
Working with my newly constructed K3S today, I noticed that receiving through the FL4 crystal filter (400 hz, 8-pole) was noticeably suppressed. Through the FL3 (1.8 kHz) filter, an RTTY signal would be nice and strong with good S-meter indications. Going to 400 Hz the signal would nearly be

Re: [Elecraft] Bad crystal filter ?

2015-09-18 Thread James C. Hall, MD
In response to W4TV Joe's question: The frequency offset for the 8-pole crystal filter is 0.00 Hz. The Pitch is 650 Hz on the K3S. And the Mark for RTTY is the standard 2125 Hz. I've got a new 400 Hz filter on its way so I'll see what the problem is. I just hope it's not an RF board. I took

Re: [Elecraft] Bad crystal filter ?

2015-09-18 Thread Joe Subich, W4TV
Jamie, What is the offset (FL# FRQ)? What is the PITCH in the K3S vs. MARK in your RTTY software? 73, ... Joe, W4TV On 9/18/2015 3:30 PM, James C. Hall, MD wrote: Working with my newly constructed K3S today, I noticed that receiving through the FL4 crystal filter (400 hz, 8-pole) was

Re: [Elecraft] Bad crystal filter ?

2015-09-18 Thread Don Wilhelm
Jamie, Is there any chance that you have installed the 400Hz filter backwards. Several have reported similar results from that problem. 73, Don W3FPR On 9/18/2015 3:30 PM, James C. Hall, MD wrote: Working with my newly constructed K3S today, I noticed that receiving through the FL4

Re: [Elecraft] Bad crystal filter ?

2015-09-18 Thread Jerry Moore
There's a process in the owners manual for adjusting dB loss compensation for the roofing filters. You can see it with the k3 utility On September 18, 2015 4:57:39 PM EDT, "Joe Subich, W4TV" wrote: > >Jamie, > >What is the offset (FL# FRQ)? > >What is the PITCH in the K3S vs.