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 AMPHF - HARDROCK-50 HF AMPLIFIER WITH ATU! 
- RF PowerTools award winning design (formerly Hobby PCB) Hardrock-50 HF Amplifier with the ATU Board a GREAT TUNER) which is a two hundred dollar option alone! The ATU board also adds 60M but obviates ability for the QSK board as they share the same space in the beautiful brushed aluminum enclosure. Manual or auto band switching.
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I am including a DC/PowerPole cable, a 3.5mm cable, and the Elecraft KX3 interface (interfaces available for other radios) and a padded zip case. Puts out 45-55W (with 1-2W drive) on all except 6M where I get 38-40. WAY lighter than either the Elecraft or Xiegu amps with MUCH lower power draw. Non-smoking home.
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Offered for $580 via Zelle or cash-in-person to your QRZ CONUS address + $18.70 USPS Priority Mail shipping (2-3 day flat rate box). Responses ONLY via the QTH message system!
- Listing #1768358 - Submitted on 05/17/26 by Callsign WZ6K - IP: 209-148-105-68.fiber.dynamic.sonic.net
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- RADIOHF - WTB: Elecraft KX3
- P/U San Diego area.
- Listing #1768211 - Submitted on 05/16/26 by Callsign W1WY - IP: ip174-65-248-212.sd.sd.cox.net
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- RADIOHF - LikeNew Elecraft KX3 PX3 $1995 shipped
- KX3 SN 7235 was meticulously assembled from kit so service would be easier if needed. It has always worked flawlessly so service was never needed! It comes with the following:
KXAT3 Internal 20W Automatic Antenna Tuner
KXBC3 Internal NiMH Charger and Real Time Clock
KXFL3 Dual Passband Roofing Filter
MH3 Hand Microphone
E850524 Power cable with right angle plug
Assembly Manual
User Manual
Pelican 1200 Case to hold KX3 and MH3
Here is a link to the video verifying this KX3’s 12dB SINAD noise floor on my Rohde & Schwarz CMS33 Monitor:
https://drive.google.com/file/d/1krEovGA-TVkw_NKPTnzKK1nAi9z8XqbC/view?usp=sharing
PX3 SN 4456 was factory built. It comes with the following:
PX3CBL ACC1 and RX I/O cable set to connect to KX3
KXUSB USB cable for use with KX3 Utility and firmware updates
E850775 Power cable with right angle plug
USER Manual
Arteck 2.4GHz Wireless Keyboard with USB dongle & charging cable
- Listing #1768119 - Submitted on 05/15/26 by Callsign W1SKL - IP: 174-20-203-157.mpls.qwest.net
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- RADIOHF - ELECRAFT FRED CADY KE7X Macro Manual
- ELECRAFT FRED CADY KE7X Macro programming manual - K3 K3S KX3 P3 PX3 KPOD
$54.96 Delivered - check, Zelle, PP FF ok.
This is a must have manual if you own one of these pieces.
These are getting very hard to find.
I will be listing Elecraft radios,P3's and options all weekend.
Please see pictures for more details.
Local pickup is also fine.
I can be reached through email if you have questions about this manual.
Larry K6RO
- Listing #1766707 - Submitted on 05/01/26 by Callsign K6RO, Web Site: http://www.K6RO.com - IP: 99.37.37.86
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- MISC - 4Sale: AlexMic
- I have for sale an AlexMic; it’s a speaker mic which works well with a KX2 or KX3. You get mic and charging cable for mic’s internal battery. This mic has a badly frayed mic cord. You’ll want to replace the cord. $35 shipped to your CONUS QTH. PayPal or Zelle for payment. If PP, F&F, unless you pay fee.
- Listing #1766161 - Submitted on 04/26/26 by Callsign N8VZ, Web Site: https://www.n8vz.com - IP: syn-024-210-019-143.res.spectrum.com
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- DIGITAL - FOR SALE: Tigertronics Signalink USB
- This Signalink USB sound-card interface is currently configured to use with the Elecraft K3 and KX3 to connect radio to computer for operating digital modes such as FT-8, PSK31, RTTY, and JS8Call, and packet. The Signalink provides its own audio isolation and PTT
control between the radio and computer. The Signalink can be configured to use with
other radios by relocating the wires on the board inside the device.
$85 including shipping.
Payment via VENMO or USPS Money Order
- Listing #1764082 - Submitted on 04/04/26 by Callsign WA0TPN - IP: 57-89-181-166.mobile.uscc.net
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 MISC - FOR SALE: ELECRAFT KX3-PCKT cable set
- I am selling the 4 cables for the Elecraft KX3 for Packet.
Cables: E980229, E980230, E980229, E980231 and E980232
$35 shipped to lower 48
I will only reply to email through QTH Classifieds
US SALES ONLY
- Listing #1759599 - Submitted on 02/20/26 by Callsign K2GLR, Modified on 04/03/26, Web Site: https://swap.qth.com/search-results.php?keywords=k2glr&fieldtosearch=Call - IP: c-73-198-233-37.hsd1.nj.comcast.net
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- RADIOHF - Tigertronics SignaLink USB with SLMODKX3
- Tigertronics SignaLink USB with SLMODKX3 module for Elecraft KX3 and KX2 radios
$99.99 Delivered - check, Zelle, PP FF ok.
Includes SLMODKX3 module and USB cable.
This jumper module is used with SignaLink USB and radio cable p/n SLCABKX3. It is compatible with both the Elecraft KX2 and the Elecraft KX3.
This is a used piece of equipment. You will need the SLCABKX3 cable
For more information refer to the Tigertronics Signalink website.
Larry k6ro
- Listing #1763831 - Submitted on 04/01/26 by Callsign K6RO, Web Site: http://www.K6RO.com - IP: 209-76-88-34.raymorgan.com
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