Uploaded August 2025 | Updated September 2026, 2 weeks ago
Lab599 TX-500MP Winlink: off-grid HF email at 10 watts using the TX-500MP manpack and LiNK500MP interface.
In this short demonstration, I show my first successful Winlink session with the Lab599 TX-500MP on 40 meters. The connection reached approximately 760 km using only 10 watts, completely off-grid and without internet at the operating position.
This video focuses on real-world data-mode performance rather than theory. You’ll see the TX-500MP paired with the LiNK500MP data interface handling Winlink email in a practical field-style setup.
Key points covered:
• First Winlink connection with the TX-500MP
• Approximately 760 km on 40 meters at 10 watts
• LiNK500MP data interface in operation
• Off-grid operation without internet at the operating position
• Practical data communications for field and emergency use
Chapters:
00:00 Introduction
00:35 Setup overview
01:40 Starting the Winlink session
02:50 Connection and message transfer
04:10 Results: approximately 760 km
04:50 Closing thoughts
The TX-500MP and LiNK500MP combination demonstrates how a compact, rugged 10 W manpack radio can provide reliable HF email and data communications when paired with the right interface.
Minimize Gear, Maximize Capability.
More TX-500MP resources:
Full TX-500MP field test:
youtu.be/oQKY1BZIOwY
TX-500MP getting-started guide:
oh8stn.org/blog/2025/11/10/lab599-tx-500mp-getting-started
LiNK500MP wireless data and CAT-control setup:
youtu.be/0YTN2ZYL8D4
Complete TX-500MP playlist:
youtube.com/playlist?list=PLKMrdrsNkFA5lYHbKfQY5B0iRUpaaIRg0
Where to buy the Lab599 TX-500MP:
United States — Ham Radio Outlet:
hamradio.com/detail.cfm?pid=H0-019288
International — PileupDX, Sweden:
pileupdx.com/product/lab599-tx-500-mp-manpack-hf-50-mhz-sdr-transceiver
Support Off-Grid Ham Radio:
Website: oh8stn.org
Amazon author page: amazon.com/author/julian-oh8stn
73
Julian OH8STN
Off-Grid Ham Radio
Minimize Gear, Maximize Capability
#Lab599 #TX500MP #Winlink #QRP #HamRadio #OffGrid #DigitalModes #LiNK500MP
Lab599 TX-500MP Winlink: off-grid HF email at 10 watts using the TX-500MP manpack and LiNK500MP interface.
In this short demonstration, I show my first successful Winlink session with the Lab599 TX-500MP on 40 meters. The connection reached approximately 760 km using only 10 watts, completely off-grid and without internet at the operating position.
This video focuses on real-world data-mode performance rather than theory. You’ll see the TX-500MP paired with the LiNK500MP data interface handling Winlink email in a practical field-style setup.
Key points covered:
• First Winlink connection with the TX-500MP
• Approximately 760 km on 40 meters at 10 watts
• LiNK500MP data interface in operation
• Off-grid operation without internet at the operating position
• Practical data communications for field and emergency use
Chapters:
00:00 Introduction
00:35 Setup overview
01:40 Starting the Winlink session
02:50 Connection and message transfer
04:10 Results: approximately 760 km
04:50 Closing thoughts
The TX-500MP and LiNK500MP combination demonstrates how a compact, rugged 10 W manpack radio can provide reliable HF email and data communications when paired with the right interface.
Minimize Gear, Maximize Capability.
More TX-500MP resources:
Full TX-500MP field test:
youtu.be/oQKY1BZIOwY
TX-500MP getting-started guide:
oh8stn.org/blog/2025/11/10/lab599-tx-500mp-getting-started
LiNK500MP wireless data and CAT-control setup:
youtu.be/0YTN2ZYL8D4
Complete TX-500MP playlist:
youtube.com/playlist?list=PLKMrdrsNkFA5lYHbKfQY5B0iRUpaaIRg0
Where to buy the Lab599 TX-500MP:
United States — Ham Radio Outlet:
hamradio.com/detail.cfm?pid=H0-019288
International — PileupDX, Sweden:
pileupdx.com/product/lab599-tx-500-mp-manpack-hf-50-mhz-sdr-transceiver
Support Off-Grid Ham Radio:
Website: oh8stn.org
Amazon author page: amazon.com/author/julian-oh8stn
73
Julian OH8STN
Off-Grid Ham Radio
Minimize Gear, Maximize Capability
#Lab599 #TX500MP #Winlink #QRP #HamRadio #OffGrid #DigitalModes #LiNK500MP
