From a1b3bf78a3ae18da5c5eeef2f522550484f7772a Mon Sep 17 00:00:00 2001
From: mrschick <58027418+mrschick@users.noreply.github.com>
Date: Wed, 8 Jan 2025 19:23:16 +0100
Subject: [PATCH] Document variable Tx Power of PRC-77

---
 docs/wiki/radios/an-prc-77.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/docs/wiki/radios/an-prc-77.md b/docs/wiki/radios/an-prc-77.md
index 16648deee..c6bf14f64 100644
--- a/docs/wiki/radios/an-prc-77.md
+++ b/docs/wiki/radios/an-prc-77.md
@@ -38,6 +38,18 @@ Two knobs, one for 1 megahertz increments and another for 50 kilohertz (0.05 MHz
 
 This switch toggles between the upper and lower frequency bands that are available. The lower, default, position lets you tune the radio to frequencies from 30.00 MHz to 52.95 MHz, and the upper position is for the  53.00-75.95 MHz range.
 
+### Transmit power
+
+The radio's maximum transmit power is 4W, but depending on the selected frequency its effective transmit power can be lower.
+
+| MHz range (inclusive) | Effective Tx Power |
+| --------------------- | ------------------ |
+| 30-33 MHz | 3.5 W |
+| 34-50 MHz | 4.0 W |
+| 51-53 MHz | 3.5 W |
+| 54-71 MHz | 3.0 W |
+| 72-75 MHz | 2.6 W |
+
 ### Preset buttons
 
 You can save two presets on the PRC-77 by using the two buttons above each tuning knob. Right-click on the button to save the preset, and left-click to recall it.