Sierra Niners
High-signal insights from the middle of the Pacific.
A video series to help you get the most from the apps and your radio.
Latest episode
RadioMail 2.0 Overview
A quick tour of RadioMail 2.0. See what’s new for sending and receiving amateur radio email on iPhone and iPad, and get oriented before diving into the feature episodes that follow.
October 31, 2026 · 2 min
Watch nowPrevious episodes
Off-Grid Email with UV-Pro Radio
Send and receive email over the air with a UV-Pro handheld and RadioMail. Walk through the setup so you can stay connected when the internet...
October 30, 2026 · 5 min
Off-Grid Email with any Radio
You do not need a special radio to move email over the air. This episode shows how RadioMail works with packet radio so almost any...
October 29, 2026 · 3 min
IC-705 RadioMail Wi-Fi and Bluetooth Setup
Pair an IC-705 with RadioMail over Wi-Fi or Bluetooth. Follow the connection steps so your iPhone or iPad can talk to the radio cleanly for...
October 28, 2026 · 7 min
RadioMail 2.0 Best Path Prediction
Pick a better station before you transmit. RadioMail 2.0 path prediction helps you choose routes that are more likely to succeed, so you spend less...
October 27, 2026 · 7 min
Listen for Incoming Peer-to-Peer Connections
Leave RadioMail ready for stations that call you directly. Learn how to listen for incoming peer-to-peer connections so others can reach you without going through...
October 26, 2026 · 5 min
Keep all your Devices in Sync
Use RadioMail on your iPhone, iPad and Mac without losing track of your messages. This episode covers icloud sync so your mailboxes stay consistent across...
October 25, 2026 · 6 min
RadioMail Mobile-Friendly Forms
Fill out Winlink forms the way they should work on a phone. RadioMail’s mobile-friendly forms make common templates easier to complete in the field without...
October 24, 2026 · 5 min
AX.25 Packet Digipeaters and Scripts
Join WH6AZ as he explores how to send and receive Winlink messages using AX.25 packet radio with RadioMail on iOS. Learn the basics of packet...
April 08, 2024 · 17 min
B.B. Link Adapter DIY
Are you a Kenwood TH-D74 or TH-D75 owner frustrated by the lack of Bluetooth support for iOS? In this episode, WH6AZ takes a slight detour...
February 03, 2024 · 27 min
P2P VARA HF with iPad
Join WH6AZ for a live walkthrough of sending a peer-to-peer (P2P) message using VARA HF and the RadioMail app on iPad. Learn how to configure...
January 05, 2024 · 10 min
Portable VARA HF HotSpot
Go off-grid and on the air! In this episode, WH6AZ shows you how to create a VARA HF hotspot to send and receive Winlink email...
December 12, 2023 · 17 min
Portable VARA FM HotSpot
Can you check email from the jungle? With a headless VARA FM hotspot and RadioMail, yes you can. In this episode, WH6AZ walks you through...
December 12, 2023 · 28 min
Add Location to Your Messages
Want to add GPS location to your Winlink messages—automatically? In this episode, WH6AZ shows how RadioMail supports embedded location headers in every message you send....
October 14, 2023 · 7 min
Simulated Emergency Test (SET) Exercise
Step into an off-grid emergency comms simulation with WH6AZ using RadioMail on iOS. In this episode, he participates in a statewide Simulated Emergency Test, showing...
October 14, 2023 · 10 min