Done! ’73 de JIM N2ZZ

To the group admins, I believe when you ported over to groups.io you brought over some old yahoo accounts. My old account was whpmotorsports@.... I'm unable to access it from groups.io and therefor

You'll probably want the fm filter for AM transmit to get 8kc instead of 6 7! Absolutely Awesome

Power for AM is 20 to 25 watts unless I'm driving the amp at which point the drive power is a bit less to get 250 watts carrier output as the amp has about 12 dB gain. . 73 Bob, K4TAX

The mike is a Shure SM-58 on a desk boom. For AM operation, TX EQ: 50 Hz -16 dB, 100 Hz -16 dB, 200 Hz -9 dB, 400 Hz 800 Hz 1.6 kHz all 0 dB, 2.4 kHz +3 dB, 3.2 kHz +6 dB. CMP at 15. One has to

Bob Thanks for the information What mic and power and audio settings are you using on your K3? Presently I am using a modified Lafayette Starflite but I have an Apache also. Don’t like the heavy

Turn the K3 power to zero and, put a dummy load on the ANT 1 port and select same. Connect the K3 PTT line to a contact set on the antenna relay for the AM transmitter. Use the K3 RX ANT input for

I have several T/R relays for antenna switching with extra contacts for receiving muting, VFO activation, and activating an amplifier. I just wanted to use the receive antenna input on the K3 and I

Careful.  Test mode doesn't survive a power cycle. Even if it did there is still signal from the TX that reaches the output.  I have brought this to Wayne's attention and he informs me that the

One possibility that occurs to me would be to put the K3 in "TX Test" mode so that it does not actually transmit. Then make the appropriate interface/connections so that it keys at the same time as

I frequently like to get on 80m or 40m AM and chat with my old friends. My old boat anchor receivers (SX100, SX101, Drake 2A, R4, and HQ170a) can’t compare to the K3s on AM with the AM filter. Is

KX 2nd L👀K- is an accessory for use with the Elecraft KX2 or KX3 Radios. The display is 80 characters and scrolls as new text is decoded. I wanted a way to display more characters so I designed

I think if 1 were bad, power out would be zero. With power set to zero they will get hot to the touch fast. If ones bad it'll be cool. You should be able to find info on this perhaps via babble or

Keith..thanks .. problem solved. 73 All. Jose EA7BJ.

Jose; You need to put in the offset for your 2.7 filter!! Should be something like -.84 It should be on the sticker on the inside of the top cover. Keith WE6R

GM Mark: If, as you suggest, one of the FET's in the LPA has died, I don’t think you would still be able to get 100W out. Perhaps a intermittent connection on the pins / connecter between the

My K3 with built-in 100W amp power out into nice dummy load and LP100 wattmeter reads reasonably accurately as PWR is advanced to 6W. Then, with PWR set 6-12W, RF out maxes at ~4-8W depending on band.

-- I had the same problem with my K-3 and found that the cable that runs to K-3 had bad connection. I sprayed with contact cleaner and no longer a problem. I had problem after doing upgrades. The

Hi Bob, yes, I've been looking at those parameters but the problem continues. Now I have uploaded a video where the reception difference between filter 1 and 2 is better appreciated. With the F2 I

I tried to use the amp on 6 meters the other day and discovered a strange problem. I was using WSJTx on a digital mode and wanted the run about 200 watts. For some reason the K3 wasn’t activating