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AMPHF - **KPA500 RF Power Monitor/WiFi remote**: **KPA500 RF Power Monitor**

*Real-time monitoring for Elecraft KPA500 owners*

Six critical parameters — Power, Voltage, Current, SWR, Temperature, and Band — displayed simultaneously on a high-contrast 256×64 OLED. No menu cycling. No squinting. 10 updates per second.
Built-in WiFi streams live data to any smartphone, tablet, or browser — no app required. One-time 5-minute setup. Access locally via *kpa500.local* or remotely via Tailscale from anywhere in the world.

✦ 500ms intelligent peak hold on power output
✦ WebSocket web interface with retro terminal aesthetic
✦ Remote Power ON/OFF and Operate/Standby control
✦ Over-the-air firmware updates
✦ OLED works independently of WiFi — always
Plug-and-play RS-232 connection. No amplifier modifications. Assembled and tested. Cables included.

**4″ × 2″ × 4″ · 9–14.8V DC · 100mA**

*Built by hams, for hams.*

---$199 plus $10 shipping; Listing #1761436 - Submitted on 03/09/26 by Callsign KV5J, 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
RADIOHF - For Sale Yaesu FV-101Z Ext VFO: I have an very nice working as it should external Yaesu VFO. Asking $175.00 for it shipped to your QTH. Continental US only please. This comes with connection cable & power cord its currently on a FT-101ZD MARK II it may need calibration but it is over 40 yrs old. Questions reach out to me Thx Scott; Listing #1761435 - Submitted on 03/09/26 by Callsign W8SKK - IP: cable-204-175.sssnet.com; Click to Contact -- Send this Ad to a Friend
AMPHF - Looking for a Flex PGXL: I need a third PGXL. From non smoking environment. Would like a 3-1 if available. Let me know what you have and lets talk. Rick NQ4I
678-595-6235; Listing #1761434 - Submitted on 03/09/26 by Callsign NQ4I - IP: 218.sub-174-209-102.myvzw.com; Click to Contact -- Send this Ad to a Friend
TUBES - For Sale: two (2) 4cx1000 tubes: From an estate. These tubes were used to power a Collins 30S-1 amplifier. I believe both to be good but have no way of testing. Selling for the widow of the deceased ham who has already sold the amplifier. They performed very well when installed but I believe they were pulled because the owner wanted "more power" and installed 4cx1500's, which were sold with the amplifier. Asking $525 shipped and insured to anywhere in the continental USA. Will accept personal check, postal money order or Paypal.; Listing #1761432 - Submitted on 03/09/26 by Callsign W8QW - IP: dyn-149.19.222.129.hrvl.mi.homeworksinternet.net; Click to Contact -- Send this Ad to a Friend
RADIOHF - W2 wattmeter digital/remote upgrade: Monitor Your RF Power From Anywhere with your W2 wattmeter

The Elecraft W2 is a great wattmeter — but what if you could see your peak power, average power, SWR, and even reverse power on your phone, tablet, or shack PC in real time, from anywhere in the world?

This W2 upgrade keeps the graphics display working perfectly while adding a live web dashboard accessible over WiFi or remotely via Tailscale. No apps to install. No subscriptions. Just open a browser.

Features:
Live PEAK, AVERAGE, REVERSE power and SWR
Auto-ranging 2W / 20W / 200W / 2kW
One-click sensor switching between S1 and S2
Stunning green-on-black instrument display
Works on any phone, tablet, or PC simultaneously
Remote access via Tailscale from anywhere
One-time WiFi setup — no hardcoded passwords

The display is always on. The web page is always ready. Your W2 just got a serious upgrade!

$199 plus $10 shipping PP; Listing #1761368 - Submitted on 03/08/26 by Callsign KV5J, Modified on 03/09/26, 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
RADIOANQ - ICOM R2 AND R7100 RECEIVERS FOR SALE: fOR SALE ARE TWO MATCHING RECEIVERS - THE ICOM R72 AND THE ICOM R7100.
THE R72 FREQUENCY COVERAGE IS FROM 30 KHZ TO 30 MHZ SSB, AM, CW, AND FM (WITH OPTIONAL U1-8 OPTION. POWER: WILL OPERATE FROM 117 VAV OR 13.8 VDC.
ICOM IC 7100 FREQUENCY RECEIVE RANGE IS FROM 25 - 1999.9999MHZ CONTINOUS
RECEIVE MODES ARE: SSB (USB, LSB) AM, (NORMAL, WIDE) WFM, FM (NORMAL, NARROW).
ONE BINDER MANUAL IS INCLUDED FOR BOTH RECEIVERS.
THESE RECEIVERS HAVE NO APPARENT PROBLEMS THAT i AM AWARE OF AND THEY APPPEAR TO WORK AS INTENDED. THERE ARE NO ADDED OPTIONS THAT i CAN REMEMBER OR AM AWARE OF SO THE DEAL WILL INCLUDE BOTH RECEICERS, AND MANUALS. THESE UNITS APPEAR TO BE SOMEWHERE BETWEEN A8TO A 9 WITH NO NOTICEABLE SCRATCHES, DINGS, DENTS, OR ANY OTHER NOTICEABLE IMPERFECTIONS. I WILL SHIP AND INSURE BOTH UNITS FOR $1000 FROM 32909 OR WE WILL DEAL FOR PICK-UP.
```````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````; Listing #1761431 - Submitted on 03/09/26 by Callsign N3QK - IP: 99-169-95-133.lightspeed.dybhfl.sbcglobal.net; Click to Contact -- Send this Ad to a Friend
AMPHF - QRO-2500 FR or FT at Sevierville: For sale is a QRO-2500 with full output tubes. Legal limit with around 20w drive. Brand new electrolytic capacitors, rectifiers and metering resistors. Peter Dahl transformers. Heavy duty multi-teach industries 86 series band switch and PTFE wiring throughout. These are built like a tank. $2200. Can demonstrate over the air, FaceTime or in person. Please reply through qth, phone or text only.
I can add cash for the right trade. Looking for an Alpha 8410 or similar.
If it does not sell by March 21st, I can bring it to the Sevierville, TN ham fest.
Thanks and 73's; Listing #1760631 - Submitted on 03/02/26 by Callsign W4EKY, Modified on 03/09/26 - IP: 173.80.201.26; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
RADIOANQ - FOR SALE: Drake 2C receiver: Selling a very clean Drake 2C receiver with the nicest copper chassis I've seen in a long time. It appears to be all original other than a 5x7 speaker mounted inside the top cover which can be easily removed (no added holes) and a SO-239 antenna connector on the rear. Original Sylvania tubes tested strong with one RCA replacement. Controls and switches cleaned and lubricated.
Made a couple of dozen contacts using this 2C on SKN. Does not have the optional Xtal calibrator or noise blanker boards installed. Asking $200 +shipping PayPal, USPS MO or cleared personal check accepted. Additional photos available by request.; Listing #1761430 - Submitted on 03/09/26 by Callsign WB9EGZ - IP: 50-105-185-205.snpr.wi.frontiernet.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
RADIOHF - Yaesu FTDX-101MP 200W tranceiver: For sale excellent condition Yaesu FTDX101MP 200W transceiver.
Purchased September 2024. Everything works as it should. Comes with original boxes, hand mike, manual and power cables.
Price is firm $3800, local pickup preferred. Professional packing and shipping can be completed at the buyers expense, add $250.
I am willing to travel up to 50 miles for the sale. No trades.
Payment accepted via Zelle personal check or Money Order. Item ships once payment clears. PayPal add $150 fee.
All sales final, no returns. Any questions please feel free to ask.; Listing #1761339 - Submitted on 03/08/26 by Callsign KO9B, Modified on 03/09/26 - IP: c-24-1-119-205.hsd1.in.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
TEST - Comet CAA-500 mark 1: Nice original Comet CAA 500 antenna analyzer
It measures SWR and Resistance (ohms)
It is in great shape
Very well made 0-500 MHz
It does not have the lcd with graph it was before that upgrade
Much more stable than MFJ meter
Priced to sell 200.00 shipped; Listing #1761429 - Submitted on 03/09/26 by Callsign KE5FAQ - IP: 146.12.250.247; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend