Differences

This shows you the differences between two versions of the page.

--- radios:tait_tm8100 [2024/05/27 11:23] – m0lte
+++ radios:tait_tm8100 [2025/07/13 15:21] (current) – [Power Requirements] m0ofx
@@ Line 54: / Line 54: @@
 | 25 | 3.5 |
-TODO: Check idle power
 TODO: VHF / UHF?
+(From Phil M0OFX) - Idle power while receiving and squelched is around 350 to 400 mA for a Band B1 TM8105 data radio. Radios with speakers and more complex control heads will be higher. 500 mA is probably a reasonable rule-of-thumb.
 ===== Pinout =====
@@ Line 77: / Line 77: @@
 The simplified pinout:
-| **Pin** | **Use** | **NinoTNC pin** |
+| **Pin** | **Use**                | ** Standard through-hole NinoTNC pin (9 pin D sub) ** | ** Surface-mount components NinoTNC pin (6 pin mini DIN) ** |
-| 7   | Transmit Audio (Input) | 1  |
+| 7       | Transmit Audio (Input) | 1               | 1                   |
-| 12  | PTT | 3  |
+| 12      | PTT                    | 3               | 3                   |
-| 13  | Receive Audio (Output) | 5  |
+| 13      | Receive Audio (Output) | 5               | 4 (9k6) / 5 (1k2)   |
-| 15  | GND | 6  |
+| 15      | GND                    | 6               | 2                   |
 {{:packet:nino-kantronics-db9-plug.jpg?200|}}
@@ Line 273: / Line 273: @@
 {{tag>radio packet vhf uhf 9600 1200}}
+===== Audio frequency response (mV/Hz) =====
+{{:radios:tm8100-af-response-curve.png|}}
+[[https://docs.google.com/spreadsheets/d/1O_LjKFKb_dCBFBqzZ0ZoZNVxEUT5ktLyQf1UXCmehZs/edit?usp=sharing|Raw data]]