Re: [Elecraft] K1-4 low power and poor receive on 40 meters

Sent: Wednesday, May 20, 2020 2:37 PM To: rocke...@gmail.com; elecraft@mailman.qth.net Subject: Re: [Elecraft] K1-4 low power and poor receive on 40 meters There is the possibility that the 40 meter crystal has low activity. Check the RF voltage at pin 4 of P1 on the band board. You should read

Re: [Elecraft] K1-4 low power and poor receive on 40 meters

>> I am going to borrow an RF Power meter with probe and check 30 vs 40 meter >> readings on the Premix in & out and the RF filter in & out. That will >> greatly help pinpoint the issue. >> >> 73 >> Dave wo2x >> >> >> -Origina

Re: [Elecraft] K1-4 low power and poor receive on 40 meters

npoint the issue. 73 Dave wo2x -Original Message- From: Don Wilhelm Sent: Wednesday, May 20, 2020 11:39 AM To: rocke...@gmail.com; elecraft@mailman.qth.net Subject: Re: [Elecraft] K1-4 low power and poor receive on 40 meters Dave, Refer to the K1FL4 instructions and re-tune the trimme

Re: [Elecraft] K1-4 low power and poor receive on 40 meters

pinpoint the issue. 73 Dave wo2x -Original Message- From: Don Wilhelm Sent: Wednesday, May 20, 2020 11:39 AM To: rocke...@gmail.com; elecraft@mailman.qth.net Subject: Re: [Elecraft] K1-4 low power and poor receive on 40 meters Dave, Refer to the K1FL4 instructions and re-tune the tri

Re: [Elecraft] K1-4 low power and poor receive on 40 meters

Dave, Refer to the K1FL4 instructions and re-tune the trimmers on the filter board. They MUST be done in the proper band sequence - 30 meters before 40m, 15m before 20m. The PreMixer portion is usually the most critical for power output. 73, Don W3FPR On 5/20/2020 11:20 AM, rocke...@gmail

[Elecraft] K1-4 low power and poor receive on 40 meters

Hi All, I am going to sell a K1-4 (4 band 40, 30, 20, 15) for the estate of my Elmer. In testing the radio I found 40 meters is about 15dB less sensitivity than 30 and power out about 75 mW. I have double checked the values of components on the filter board to ensure they are correct and instal