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In an effort to reduce spam and the spread of viruses, we are now providing this form for you to contact a person that has placed an ad on QTH.COM. After submitting this form, an e-mail will be generated and sent to BOTH you and the person that placed the ad. The e-mail will contain a copy of the ad, plus your e-mail information and your comments.

NOTE -- BEFORE YOU RESPOND:

1. Please Read the Safe Trading Tips article from KA9FOX.
   Link opens up a new window, so you can come back to this ad later
2. Use the Feedback Forums to see if the person you are about to deal with has any good or bad feedback from previous dealings.
   Link opens up a new window, so you can come back to this ad later

You are responding to the following ad:

Ad Number:	1743705
Date Placed:	09/20/25
Name:	Keith Ennis
Phone Number:	E-MAIL ONLY
Callsign:	KV5J
Category:	RADIOHF
Heading:	OL-SDR HF 1.8-50MHz 2 CHANNELS SDR
Ad Message:	FOR SALE: OLLITER OL-20A SDR Transceiver – Like New! Selling my OLLITER OL-20A SDR Transceiver – top-of-the-line HF SDR with incredible performance, perfect for serious ham operators and SDR enthusiasts. Price: $4000 (free shipping) Condition: Like new – lightly used, well cared for, smoke-free shack. What’s Included: OLLITER OL-20A SDR Transceiver Microphone Power Cable Ethernet Cable Key Features: Wideband coverage: 100 kHz to 55 MHz Dual 16-bit ADC receiver with ultra-low noise floor (~-130 dBm) Multiple RX windows & sub-receivers for simultaneous monitoring High-stability TCXO (~0.05 ppm) with GPS sync capability Strong filtering and low phase noise for clean signals Full DSP processing: noise reduction, notch filters, spectrum recording, and more Gigabit Ethernet interface for PC and remote operation Multiple antenna inputs & flexible I/O for station expansion

Your Response to this Ad:

Due to the amount of non-ham scammers trying to respond to the ads, I am now asking a simple question that ham operators should easily be able to answer, but scammers may not know the answer: What is the number that hams use to represent the phrase "Best Regards"? This number is typically transmitted by hams at the end of a QSO.
Best Regards:
Your Name:
Your Callsign:	(Enter NONE if you have no call)
Your E-mail Address:
Your E-mail Address Again:
Your IP Address:	216.73.216.144
Please forget all information you have automatically stored about me in cookies.
Your message:
BUY / SELL / TRADE SAFELY! I agree that I have read KA9FOX's Safe Trading Tips HERE (link opens in new tab).

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