Whether you’re prepping for everyday communications or emergencies, digital ham radio modes offer reliable, efficient ways to stay connected—no internet or cell service needed.
Here are my top 6 digital modes that I personally use and recommend for preppers building a solid communications plan:
1. Winlink (VHF/HF)
Winlink is the go-to for email over radio, working on VHF and HF to send messages and files anywhere in the world without internet. It’s perfect for daily check-ins or critical messaging during outages.
2. JS8Call (HF)
JS8Call expands HF digital communication into real-time conversational text messaging with persistent nets running 24/7. It’s a reliable way to chat and share quick messages across long distances.
3. VarAC (HF)
VarAC supports digital voice and data on HF, enabling conversations and file transfers with clear, efficient signals—a flexible choice for preppers wanting both voice and data over one radio.
4. VaraFM (VHF Packet)
VaraFM is a modern take on VHF Packet, providing faster, more reliable file and message transfers, including support for Winlink traffic. It’s excellent for local VHF digital networks needing speed and dependability.
5. APRS (VHF)
Often thought of as GPS tracking, APRS also has powerful messaging features for short texts and alerts over VHF—great for everyday coordination and emergency use.
6. VHF Packet (BBS/P2P)
VHF Packet at 1200 baud offers point-to-point chat, bulletin boards, and resilient node-based messaging. Its community-built networks keep local communication flowing when it matters.
Simplify Digital Comms with DigiRig and a Micro PC
Digital modes can seem complex, but devices like the DigiRig paired with a Bee-Link Micro PC and a vintage VHF rig make setup straightforward. I use this combination daily to handle Packet, VaraFM, Winlink, and APRS on VHF—taking the technical headache out of digital radio.
Licensing & Gear Essentials
Most HF digital modes require a General Class license or higher, plus HF radio and antenna. VHF digital modes work well on simpler setups and can perform well with my favorite walkie-talkie; the BTech UV-PRO, which supports APRS, Winlink, and Packet modes.
Your Next Step: Get Licensed and Get On The Air
If you’re not licensed yet, you’re missing out on the most powerful digital communication options. That’s why I partner with HamRadioPrep.com—they offer a focused, step-by-step course that helps you get your ham ticket quickly and confidently.
Visit HamRadioPrep.com and use coupon code HamRadio360 at checkout to save 20%.
Mastering these digital modes puts you in control of your family’s communications—every day and when it counts.
God Bless & 73 Y’all,
Caleb Nelson, K4CDN
Founder, Family Connect System
Founder & Host: HamRadio 360 / Prep Comms Podcast
Before you go! What is your favorite Digital Mode(s)? Let's chat!
About the Author
Caleb Nelson (K4CDN) is a husband, father of five, and the founder of the Family Connect System—a practical, family-first approach to emergency communication. A veteran of FM radio and a licensed Amateur Radio Operator, Caleb draws on decades of real-world experience, including nearly ten years in the professional fire service as an Engineer and EMT.
He and his wife of over 25 years, Carla, homeschool their children and run a small business together—often with the help of their two loyal Goldendoodles. Whether he's writing, teaching, or talking on the airwaves, Caleb’s heart to serve and protect families is at the center of everything he does.
More from Caleb: