QTH.COM Ham Radio Classified Ads - Swap amateur radio HF VHF equipment buy sell trade on line

AMPHF - Extended Display for Elecraft's KPA500: Extended Display Unit for Elecraft's KPA500

A compact, easy to read KPA500 Digital Display Unit (DDU). It allows the monitoring of five crucial readings all at the same time.

The DDU measures only 4X4X2 with an easy to read 2 line display that can be located at the operating position and the KPA500 located up to 100 feet away.

The DDU is designed with the following features:

1. Power amplifier's heat sink temperature
2. Power amplifier's high voltage supply voltage
3. Power amplifier's current
4. Power amplifier's output power
5. SWR that the KPA500 sees at its output
6. Operate or Standby mode
7. Band amp is tuned to

All cables supplied. Easy setup.

Only 1 left.

Newest Hardware and Software. $199 plus $10 shipping.; Listing #1753918 - Submitted on 12/28/25 by Callsign KV5J, Modified on 12/28/25, 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
TEST - Need Info - MFJ-891 Meter: I have an MFJ-891 power/SWR meter that the 200watt scale reads about 10% low, but i don't want to make any tweaks until I have some info. I'm looking for information on which potentiometers inside the meter adjust what. This is a three range meter and there are 8 different pots inside. I'm guessing a full scale adjustment for both forward and reflected readings on each range. Not sure about the other two. The pots are also not well identified. I have searched the internet everywhere with no luck. If anyone has info on these adjustments, it would be greatly appreciated if you would share it.; Listing #1753960 - Submitted on 12/28/25 by Callsign N0DF - IP: 69.71.5.190; Click to Contact -- Send this Ad to a Friend
RADIOHF - Yaesu FT-710 FIELD: I have for sale in like new condition a Yaesu FT-710 FIELD. The radio serial number is 3G14XXXX. It was purchased new by me in December 2023 and has seen very little use since then. It has always been covered when not in use. I have two of these and this one needs to go to someone who will use it. The transceiver comes with the hand mic, full-length power cord with Anderson Powerpole connectors, owners manual, and the original double boxes that I received it in. Price is $750.00 or best reasonable offer shipped, insured CONUS. No known issues, however, this sale is as-is, with no warranties, and no returns. No trades. This sale will be to a licensed US amateur radio operator only, no exceptions. Payment by Paypal. Serious inquiries only. If interested please contact me via email and include your callsign, I'm good on QRZ. Thanks and 73 de K4IDT.; Listing #1753907 - Submitted on 12/28/25 by Callsign K4IDT, Modified on 12/28/25 - IP: 99-123-17-199.lightspeed.nsvltn.sbcglobal.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
AMPHF - FORSALE: EMTRON DX - 3sp: FORSALE::SALE PENDING" EMTRON DX-3sp
As you know this is a 4-5kw amplifier
Comparable to the Alpha 77SX.
Running a pair of FU-728F tubes.
This amplifier is forsale at $3500 LOCAL
PICK-UP ONLY DUE TO WEIGHING 120LBS..; Listing #1753852 - Submitted on 12/27/25 by Callsign N2EWM, Modified on 12/28/25 - IP: customer.nwyynyx1.pop.starlinkisp.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
RADIOVHF - Tytera MD-380 DMR handheld for sale: I wish to sell my Tytera DM-380 hand held transceiver. I have two of these units and only need one at this time. The unit is in excellent shape and will come in its original box with all included accessories.
Price: $75.00 shipped.; Listing #1751339 - Submitted on 12/01/25 by Callsign K1MZM, Modified on 12/28/25 - IP: c-73-227-200-91.hsd1.vt.comcast.net; Click to Contact -- Send this Ad to a Friend
MISC - Iambic paddles for sale: I built these Iambic paddles from a kit several years ago but I no longer use them. There is some tarnish on the base that can be polished off. The paddles function well.
Price: $50 shipped.; Listing #1751340 - Submitted on 12/01/25 by Callsign K1MZM, Modified on 12/28/25 - IP: c-73-227-200-91.hsd1.vt.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
RADIOVHF - Anytone AT-D578UVIII Pro for Sale: This Anytone AT-D578UVIIIPro is essentially new. It will operate as an analog or DMR radio on both VHF and UHF bands. I bought it when our local RACES group established a DMR statewide network in order to familiarize myself with DMR. It has seen less than 1 hour's use since new. Unit comes complete with all accessories in its original box.
Price: $350.00 shipped OBRO.; Listing #1751332 - Submitted on 12/01/25 by Callsign K1MZM, Modified on 12/28/25 - IP: c-73-227-200-91.hsd1.vt.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
MISC - Ameritron QSK-5 for sale: I have two Ameritron QSK-5 units for sale. These were purchased when I owned two legal limit amplifiers that I no longer own. One unit is new in its original box. The other unit is in new condition.
Price: $200.00 per unit shipped. If someone wishes to purchase both units a discount will be offered.; Listing #1751338 - Submitted on 12/01/25 by Callsign K1MZM, Modified on 12/28/25 - IP: c-73-227-200-91.hsd1.vt.comcast.net; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
TEST - Rigexpert AA 30: Excellent antenna analyzer very limited use . Perfect condition ?
170.00 shipped priority mail.; Listing #1753959 - Submitted on 12/28/25 by Callsign W5RD - IP: 172.59.192.130; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend
TEST - FS: Heathkit IGW19/IG102 Sig. Generator: The Heathkit IGW-19 is the fACTORY WIRED IG-102. It works well//clean/ /non-smoker//copy of manual/ $50.00 plus conus shipping. See other ad for frequenct counter.; Listing #1753958 - Submitted on 12/28/25 by Callsign WD(GMG - IP: syn-071-011-194-065.res.spectrum.com; Click to Contact -- Click Here to View Picture -- Send this Ad to a Friend