Differences

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

--- packet:being_a_user [2023/06/10 16:15] – 2e0sip
+++ packet:being_a_user [2024/04/07 20:17] (current) – m0lte
@@ Line 9: / Line 9: @@
 We've started compiling a list of suitable radios and instructions to interface them here - [[packet:transceivers|packet:transceivers]]
-Note unfortunately that due to poor turnaround times, cheaper radios such as Baofengs and the like probably won't be suitable, however suitable radios can be picked up at rallies for as little as £5.
+Note unfortunately that due to poor turnaround times, cheaper radios such as Baofengs and the like probably won't be suitable, however suitable radios can be picked up at rallies for as little as £5. They *might* work, but would certainly be discouraged for anything other than bench testing and experimentation.
@@ Line 16: / Line 16: @@
 ==== Windows ====
-If you're using a KISS TNC such as the NinoTNC, you will need a Packet Terminal. See [[packet:qttermtcp|QtTermTCP]]
+If you're using a **KISS TNC** such as the NinoTNC, you will need a Packet Terminal. See [[packet:qttermtcp|QtTermTCP]] or [[https://wiki.oarc.uk/packet:xrouter:howtos:xrkiss|xrouter in KISS terminal mode]].
-If you're using a Sound Interface, you will need a Software Modem. See [[packet:qtsoundmodem|QtSoundModem]]
+If you're using a **Sound Interface**, you will need a Software Modem. See [[packet:qtsoundmodem|QtSoundModem]] as well as a Packet Terminal, as above.
+==== Linux ====
+If you're using a **KISS TNC** such as the NinoTNC, you will need a Packet Terminal. See [[packet:qttermtcp|QtTermTCP]] or [[https://wiki.oarc.uk/packet:xrouter:howtos:xrkiss|xrouter in KISS terminal mode]]
 ===== Frequencies =====
-==== VHF ====
+You'll generally find packet nodes on the following frequencies. Note that whilst the Bandwidth is set, the usage may vary.
+==== VHF / 2m ====
+The default "legacy" mode is 1200 baud standard AX.25, though newer modes, modulations and encodings are starting to appear, offering more resilience and throughput.
+| Frequency | Bandwidth |
+| 144.925   | 12.5 |
+| 144.9375  | 12.5 |
+| 144.950   | 12.5 |
+==== UHF / 70cm ====
+kHz channels, might be using 9600bps or more. Nodes may also be using IL2P (Improved Layer 2 Protocol) and FX.25 (AX.25 + Forward Error Correction)
+| Frequency | Bandwidth | Usage |
+| 430.200 | 25   | Forwarding  |
+| 430.225 | 25   | Forwarding  |
+| 432.625 | 25   | User Access |
+| 432.650 | 25   | User Access |
+| 432.675 | 25   | User Access |
+| 433.625 | 25   | User Access |
+| 439.900 | 12.5 | Forwarding  |
+| 439.925 | 25 (with overlap to lower adjacent channel) | Forwarding  |
+| 439.950 | 25 (with overlap to upper adjacent channel) | Forwarding  |
+==== VHF / 4m ====
+Legacy channels, no new applications can be granted on 4m.
+| Frequency |
+| 70.325 |
+| 70.4875 |
+==== VHF / 6m ====
-.925
+| Frequency | Bandwidth |
-.950
+| 50.650    | 10 kHz    |
-.9375
+| 50.660    | 10 kHz    |
-==== UHF ====
+==== Exotic stuff ====
+Not packet radio, but worth a mention:
+  * 144.8000 APRS
+  * 433.8000 APRS where 144.8000 MHz can’t be used e.g. Within 50km of TA012869
+  * 439.9125 LORA APRS Low Power only no amplifiers permitted
+  * 439.9875 Pagers
+  * 5675.0000 Mesh networking - using CE Licensed Exempt Equipment does not require frequency clearance
+Reference: https://ukrepeater.net/doc_files/PacketRadioFrequencies.pdf