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Displaying ads 1 to 10 of 3353 ads matching your search
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RADIOHF - KAT500 Antenna Tuner Display Unit   KAT500 Antenna Tuner Display — Real-Time OLED Monitor for Elecraft KAT500 Seven parameters, always visible, on a high-contrast 256×64 OLED. No menu cycling. Mount anywhere in the shack. Monitors: Mode (BYPASS / MANUAL / AUTO) · Antenna Port · Frequency Range SWR After · SWR Before L (µH) · C (pF) — auto-reordered to match your SIDE setting Frequency Range — the exact kHz bin the KAT500 is currently tuned to (e.g. 14200–14229) Direct RS-232 integration via MAX3232 — no tuner modification required. Specs: XIAO ESP32-C3 · SSD1322 256×64 OLED · 9–14.8V DC · 100mA · 4″×2″×4″ Bonus: Built-In WiFi — green phosphor web interface mirrors the OLED with color-coded SWR bars (amber >1.5:1, red >2.1:1). Web controls include Power, Mode, Antenna Port, and Full Tune. Fault alerts display instantly. OTA firmware updates — no USB required. OLED operates independently of WiFi at all times. Includes: Assembled & tested unit, DC power cable, RS-232 cable. $199 plus $10 shipping PP Listing #1762618 - Submitted on 03/20/26 by Callsign KV5J, Modified on 04/03/26, Web Site: http://www.kv5j.com - IP: customer.mmmiflx1.isp.starlink.com Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend  ROTATORS - Two Rotor Mast Clamps   Two (2) Alliance (Z-19405) mast clamps. Left mount looks to be new. These work on Alliance HD-73 rotors. Will work on some Yaesu & Kenpro rotors too. Or use just to mount a mast down. You get the two mounts shown shipped for $93 to lower 48 states. Any questions call 301-233-0910. Thanks, Dave. N3EJT Listing #1763944 - Submitted on 04/03/26 by Callsign N3EJT - IP: 145.sub-174-219-236.myvzw.com Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend  RADIOHF - FlexRadio 6600 with ATU and Maestro C   FlexRadio 6600 with ATU installed and Flex Maestro. The FlexRadio 6600 is perfect with the latest 4.15 firmware installed. Comes with Anderson power pole power cord and FHM-3 Microphone. The Maestro comes with Power cord, Aftermarket adjustable legs, Battery pack, Dust cover, and Y adapter for the Flex Mic (No Mic Included) That's over $2000 new. FlexRadio 6600 $2300 Plus Shipping Maestro C $1500 Plus Shipping Listing #1763943 - Submitted on 04/03/26 by Callsign W9EDD - IP: c-76-141-45-112.hsd1.il.comcast.net Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend  RADIOHF - Yaesu FT-710 with AESS external speaker   For sale excellent condition Yaesu FT710 with AESS external speaker. Includes original box, manual, microphone, power cable, DVI cable for external monitor, carrying handle and dust cover. Everything works as it should. Price is $850 + shipping. Payment via USPS Money Order, cashiers check or Zelle, PayPal you pay the fee. All sales final, no returns no trades. Listing #1762894 - Submitted on 03/23/26 by Callsign KO9B, Modified on 04/03/26 - IP: c-24-1-119-205.hsd1.in.comcast.net Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend  RADIOHF - Kenwood TS-590SG with Extras   This a mint condition Kenwood TS-590G with original box and TXCO oscillator, and I’m throwing in a free Kenwood hand mic. Tested for functionality and power out. You won’t find one in better condition than this one! $1099 shipped CONUS! Listing #1763942 - Submitted on 04/03/26 by Callsign K1FIE - IP: syn-016-203-133-064.res.spectrum.com Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend  RADIOHF - For SALE TEN TEC ARGO 6   For Sale Ten TEC Argonaut 6 QRP transceiver 160-10 meters CW and SSB. Exceptional condition. Includes radio, book,microphone (not TT), and power cord. $550 plus $20 shipping or pickup near Knoxville, TN Thanks for reading. 73 Pete, WM4U Listing #1763565 - Submitted on 03/30/26 by Callsign WM4U, Modified on 04/03/26 - IP: c-174-177-117-46.hsd1.tn.comcast.net Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend  MISC - FS: MLA2500 Plate Voltage Meter   Dentron MLA-2500 PLATE VOLTAGE METER. Looks and works great. $60 Shipped. PayPal, check or money order. N6CW Listing #1763941 - Submitted on 04/03/26 by Callsign N6CW - IP: syn-070-095-042-133.res.spectrum.com Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend  MISC - FS: FLEX CONTROL KNOB   FLEX TUNING KNOB. Used on my Flex 6300. Works great. $110 Shipped. PayPal, check or PMO. N6CW Listing #1760446 - Submitted on 02/28/26 by Callsign N6CW, Modified on 04/03/26 - IP: syn-070-095-042-133.res.spectrum.com Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend  TEST - MFJ-812B meter   MFJ-812B VHF meter I bought this new many years ago. Looks good; one light scratch on the right side of the meter face and one on the left side of the case. Selling because I bought a different meter and don't need this one now. Seems to work well but selling as-is due to age. $23 plus actual shipping cost via USPS Ground Advantage. USPS money order or PayPal if you pay the fee. Listing #1763940 - Submitted on 04/03/26 by Callsign KG2QM - IP: 74.244.63.3 Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend  MISC - DXE BUFFER RELAY FOR LEGACY AMPLIFIERS   6 WEEK OLD DXE BUFFER RELAY TO PROTECT THE NEWER RADIOS FROM VOLTAGE SPIKES WHILE KEYING OLDER LEGACY AMPLIFIERS. MODERNIZE TO SWITCH TWO DIFFERENT AMPLIFIERS. I PAID $116.00, ASKING, $90.00 SHIPPED CONUS. PAYMENT BY ZELLE OR POSTAL MONEY ORDER. THANKS FOR READING VY73' STEVE W8CRH SEMPER FI Listing #1763939 - Submitted on 04/03/26 by Callsign W8CRH - IP: customer.chcoilx1.isp.starlink.com Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend

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