Differences

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

--- nodes:gb7win [2026/03/29 16:35] – [Current and planned ports] g5rkt
+++ nodes:gb7win [2026/03/29 21:39] (current) – [GB7WIN Crab Wood, Winchester] g5rkt
@@ Line 1: / Line 1: @@
 ====== GB7WIN Crab Wood, Winchester ======
-**GB7WIN is now INP3 only, we are hoping to be able to provide end-to-end NETROM connections to nearby nodes but we're still figuring out the gremlins :)**
 GB7WIN was commissioned on 23rd March 2025 by Alan G8IPG and Jason G5RKT as part of [[https://swhr.org.uk/|South West Hampshire Raynet's]] wider project to provide digital voice and data services to amateurs across the wider area and as a spiritual successor to [[nodes:gb7sou|GB7SOU]].
@@ Line 20: / Line 18: @@
 =====Current and planned ports=====
 ^ Port ^ Frequency ^ Antenna   ^ NinoTNC Mode    ^ ERP / Dev. ^ Status ^ Neighbors ^ WebSDR ^
-|2| 144.925MHz \\ 12.5KHz FM | V Omni\\ 3dBd 40mAGL  | 0100 GFSK 4k8 IL2Pc\\ flat "9600" audio   | 14dBW 2.4KHz | online | [[nodes:gb7bdh|GB7BDH]] | [[http://wessex.hopto.org:8070/|Wessex]] |
+|2| 144.925MHz \\ 12.5KHz FM | V Omni\\ 3dBd 40mAGL  | 0100 GFSK 4k8 IL2Pc\\ flat "9600" audio   | 14dBW 2.4KHz | on air | [[nodes:gb7bdh|GB7BDH]] | [[http://wessex.hopto.org:8070/|Wessex]] |
 |4| 70.4875MHz \\ 12.5KHz FM  | V Omni\\ 0dBd 7mAGL   | - | -  | planned | | |
-|6| 50.660MHz \\ 12.5KHz FM  | V Omni\\ 0dBd 40mAGL | 1011 QPSK 2k4 IL2Pc\\ flat "9600" audio    | 13dBW 2.4KHz | online | [[nodes:gb7bdh|GB7BDH]] [[nodes:gb7rdg|GB7RDG]] |[[http://wessex.hopto.org:8070/|Wessex]] |
+|6| 50.660MHz \\ 12.5KHz FM  | V Omni\\ 0dBd 40mAGL | 1011 QPSK 2k4 IL2Pc\\ flat "9600" audio    | 13dBW 2.4KHz | on air | [[nodes:gb7bdh|GB7BDH]] [[nodes:gb7rdg|GB7RDG]] |[[http://wessex.hopto.org:8070/|Wessex]] |
 |7| 432.650MHz \\ 25KHz FM  | V Omni\\ 5dBd 40mAGL   | - | - | planned | |
 =====Coverage Model=====
@@ Line 34: / Line 32: @@
   * Modified Comet GP-15N @ ~40m AGL / ~200m ASL, 55m Andrews LDF7-50A
   * Raspberry Pi 5 (Debian Bookworm)
-  * 2m: Motorola GM380 (narrow filter, flat audio)
+  * 2m: [[https://wiki.oarc.uk/radios:tait_tm8100|Tait TM8110]] (narrow filter, R1 / T13 taps)
-  * 6m: [[https://wiki.oarc.uk/radios:dr-m06th|Alinco DR-M06TH]] (narrow filter, flat audio)
+  * 6m: [[https://wiki.oarc.uk/radios:dr-m06th|Alinco DR-M06TH]] (CFW455G filter, discriminator / varactor tapped)
   * 2x NinoTNC A4 v3.42 firmware
   * Tx/Rx audio capture on 2m port
@@ Line 41: / Line 39: @@
 ====LinBPQ====
 **Version**
-<code>G8BPQ AX25 Packet Switch System Version 6.0.25.24 February 2026 (Test/pilinbpq64)</code>
+<code>G8BPQ AX25 Packet Switch System Version 6.0.25.26 March 2026 (Beta/pilinbpq64)</code>
 **Last updated**
-<code>2026-03-07 13:41 BST</code>
+<code>2026-03-29 22:33 BST</code>
 **Global**
@@ Line 92: / Line 90: @@
 PORT
   PORTNUM=2
-  ID=144.925MHz/Nino-0101/QPSK/3k6
+  ID=144.925MHz/Nino-0101/GFSK/4k8
-  M0LTEMapInfo=RF,144.925,QPSK,3600,3600,Mixed
+  M0LTEMapInfo=RF,144.925,GFSK,4800,4800,Mixed
   TYPE=ASYNC
   PROTOCOL=KISS
   KISSOPTIONS=ACKMODE
-  COMPORT=/dev/tnc-2m
+  COMPORT=/dev/tnc-2m-ext
   SPEED=57600
-  TXDELAY=200            ;msec, OK for all stations?
+  TXDELAY=30             ;msec, shortest possible to decode at BDH
-;  TXDELAY=150            ;msec, OK with relay-switched 857d
-;  TXDELAY=80             ;msec, shortest possible to decode at BDH
   TXTAIL=1               ;msec, Needed to prevent NinoTNC sending 30msec tail
   FRACK=7000             ;msec, Busy channel, 7sec ACK timeout
   PACLEN=236             ;bytes, 236 is max for a NETROM frame
   MAXFRAME=4             ;no., Default frames before ACK
-  RESPTIME=788           ;msec, Delay before L2 ACK (256*8)/3600=568 + TXDELAY +100msec
+  RESPTIME=457           ;msec, Delay before L2 ACK (256*8)/4800=427 + TXDELAY
   RETRIES=10             ;no., L2 retries before failure, default=6
   SLOTTIME=100           ;msec, Wait time before checking PERSIST again
@@ Line 112: / Line 108: @@
 ;  PERSIST=64            ;255/(# 5 - 1) Probably ~5 hidden stations, maybe
   DIGIFLAG=0             ;Don't digipeat (=1 all, =255 UI only)
+  INP3ONLY=1             ;
+  ENABLEINP3=1           ;Try INP3 immediately when a link is established
+  ALLOWINP3=1            ;Respond to INP3 on this port
+  QUALITY=1              ;Nodes heard on this port get this quality
+  MINQUAL=50             ;Therefore do not broadcast nodes heard on this port
+  NODESPACLEN=160        ;Keep NODES broadcast shorter to help decode
+  NONORMALIZE=1          ;Disable node quality normalisation algorithm
+  IGNOREUNLOCKEDROUTES=1 ;Locked routes only
+ENDPORT
 PORT
@@ Line 123: / Line 129: @@
   SPEED=57600
   TXDELAY=250            ;msec, DR-M06 takes ~150msec to key up
-;  TXDELAY=180            ;msec, DR-M06 takes ~150msec to key up
-;  TXDELAY=500            ;msec, help BDH to decode over the QRM
   TXTAIL=1               ;msec, Needed to prevent NinoTNC sending 30msec tail
   FRACK=8000             ;msec, Needs tuning
   PACLEN=180             ;bytes, 236 is max for a NETROM frame
   MAXFRAME=2             ;Default no. frames before ACK
-  RESPTIME=1153          ;msec, Delay time before L2 ACK (256*8)/2400=853 + TXDELAY + 100msec
+  RESPTIME=1103          ;msec, Delay time before L2 ACK (256*8)/2400=853 + TXDELAY
   RETRIES=10             ;no., L2 retries before failure, default=6
   SLOTTIME=100           ;msec, Wait time before checking PERSIST again