Differences

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--- radios:tk-90 [2024/05/13 16:44] – [Data modes / modem use] m0lte
+++ radios:tk-90 [2024/10/20 13:35] (current) – [KCT-39 pinout] m0lte
@@ Line 16: / Line 16: @@
 {{ :radios:kenwood_tk-90_service.pdf | Kenwood TK-90 service manual }}
+{{ :radios:kenwood-tk-90-pc-commands.pdf | PC Commands }}
+{{ :radios:tk-90_function_reference.pdf | Function Reference}}
+{{ :radios:tk-90_navigator_ttl_cable.pdf | Navigator TTL Cable}}
+{{ :radios:tk-90_navigator_rs232_cable.pdf | Navigator RS232 Cable}}
+{{ :radios:tk-90_modification_reference.pdf | Modifications Reference}}
 Requires programming. Both serial and USB-serial mic jack programming cable is available as a Kenwood part (see below) or off brand USB versions are also available. This implies it is just straight serial so a generic USB serial cable with an RJ45 plug crimped on the end may be suitable.
@@ Line 68: / Line 78: @@
 {{:radios:tk-90_accessory_port_pins.png|}}
+==== KCT-39 pinout ====
+^ Pin ^ Colour    ^ Internal ^ Name ^ Notes    ^
+| 1   | Red       | CN9-1    | KEY  |          |
+| 2   | Pink      | CN10-1   | IGN  |          |
+| 3   | Black     | CN9-3    | GND  | Ground   |
+| 4   | Brown     | CN10-3   | DEO  | RX audio |
+| 5   | Orange    | CN10-2   | DI   | TX audio |
+| 6   | Yellow    | CN9-8    | DPTT | PTT      |
+| 7   | Green     | CN9-7    | RTK  |          |
+| 8   | Blue      | CN9-9    | GND  | Ground   |
+| 9   | Purple    | CN9-12   | AUX3 |          |
+| 10  | Gray      | CN9-10   | AUX1 |          |
+| 11  | White     | CN9-11   | AUX2 |          |
+| 12  | NC        | NC       | -    |          |
+| 13  | NC        | NC       | -    |          |
+| 14  | Sky blue  | CN9-6    | RXD1 | Assumed to be serial, maybe TS-2000-alike |
+| 15  | Turquoise | CN9-5    | TXD1 | Assumed to be serial, maybe TS-2000-alike |
+External channel control looks feasible:
+{{:radios:tk-90-external-channel-control.png|}}
 ====== Dealer mode ======
@@ Line 81: / Line 113: @@
   * M22 DATA S-BAND: which sideband will data be transmitted on - generally set to USB
-====== Adjusting sensitivity ======
+====== Adjusting TX audio response ======
 Remove the top lid of the radio- 8 screws.
@@ Line 87: / Line 119: @@
 Trimmer VR852 is TX sensitivity - max sensitivity to TX audio input is fully clockwise.
+To set up TX audio, I recommend the following procedure:
+  * in the dealer menu, set DI to 4, the default
+  * set the radio to 100W
+  * set your modem to its maximum volume level (on NinoTNC I recommend DIP switch 1 is down/off (i.e. lower transmit audio range and with its DEV pot set to maximum)
+  * have the modem transmit repeated frames (on NinoTNC, hold test TX button for ~20 seconds and release)
+  * turn VR852 until a power meter connected to the radio reads say 50W
+  * adjust the modem output volume down until the power meter reads the desired output power, e.g. 25W
 ===== Navigating =====