Difference between revisions of "GB3HV"

Latest revision as of 13:44, 16 July 2025

GB3HV has Moved and is now on-air from IO91LD

We left our lovely Farnham site before Christmas 2021 but the good news is that Roy G8CKN is now hosting the repeater at his QTH in IO91LD - this is a great site with different coverage to Farnham but we are hoping all of you will still be able to access it.

Organisation

GB3HV will be managed by the GB3HV Repeater Group.

The Constitution is here: Media:20250423 GB3HV REPEATER GROUP CONSTITUTION.pdf

The Constitution and Site Agreement were discussed and agreed at the inaugural meeting of the GB3HV repeater Group on Tuesday 29 April 2025. The record of the meeting is here: Media:20250429 GB3HV Repeater Group Formation Meeting Record.pdf

Equipment and rebuild

GB3HV has been rebuilt and is now digital in, digital out (with a 23 cm analogue RX). This has been made possible by the great work done by Dave G8GKQ on the BATC repeater controller project which uses HDMI video switchers - see https://wiki.batc.org.uk/Repeater_Controller

The Tuesday net at 8pm is still very active with a number of stations either coming in by the stream rxr or relayed in by other users receiving 10,499.25 MHz on QO-100.

Inputs and outputs

GB3HV receives on:

70 cms: 437 MHz DVB-S or DVB-S2 at 1MS and 333kS with a steerable beam.

23 cms: 1248 MHz DVB-S or DVB-S2 at 2MS, 1MS and 333kS with a steerable beam.

23 cms: 1248 MHz FM with a steerable beam.

GB3HV also has a stream input - contact G8GTZ or G8GKQ for details

GB3HV transmits on 1308 MHz DVB-S2, 1 MS, QPSK, FEC 2/3

GB3HV streams to https://batc.org.uk/live/gb3hv

Operating Times

When not switched off for maintenance, GB3HV operates at the following times (all UTC, does not change for BST):

Receivers: 10:00 to 23:30 (the "active hours")

Transmitter: from the hour until the half hour during the period 10:00 to 23:30.

The transmitter is turned on at any time between 10:00 and 23:30 if a valid signal is received. Idents are also transmitted during active hours.

Antennas

All the ATV Receive antennas can be rotated to the user direction using the GB3HV Rotator Control

23cm RX 15dBd (17dBi) Antec 'Plate' antenna. H polarised.
70cm RX 11.5dBd (13.6dBi) 'J-Beam' Multi-beam antenna. H polarised.

The Talkback and DTMF control is vertically polarised. 2m/70cm X-30A Dual Band Collinear. 3dBd/5.5dBd (5.1dBi/7.6dBi)

Transmit antenna: 23cm TX 6dBd (8.1dBi) Antec Omnidirectional 'Plate' Array. [Radiating 50W ERP]. H polarised.

DTMF Control

During operating hours, GB3HV can be DTMF controlled to show a specific input. The DTMF receiver is on 144.75 MHz and the codes are:

*10# Repeater Controller
*11# 70 cm Digital Receiver
*12# 23 cm Digital Receiver
*13# Stream Receiver
*14# 23 cm Analogue FM receiver
*15# Quad View

*00# Reset to normal operation

Financials

A lot of the rebuild has been made possible by 2 generous BATC grants but going forward we will looking for a small annual subscription (currently £20) to cover the costs (including power) of operating at Roy’s. Please contact the Treasurer, Justin G8YTZ at justin.cockett@me.com

@@ Line 1: / Line 1: @@
 [[File:HVtest.jpg|400px]]
-==GB3HV is moving==
+==GB3HV has Moved and is now on-air from IO91LD==
-We left our lovely Farnham site before Christmas 2021 but the good news is that Roy G8CKN has offered to host the repeater at his QTH in IO91LD - this is a great site with different coverage to Farnham but we are hoping all of you will still be able to access it.  There’s a lot of work to do at Roy’s and with the repeater rebuild but we are hoping to get it installed during the spring.
+We left our lovely Farnham site before Christmas 2021 but the good news is that Roy G8CKN is now hosting the repeater at his QTH in IO91LD - this is a great site with different coverage to Farnham but we are hoping all of you will still be able to access it.
+==Organisation==
+GB3HV will be managed by the GB3HV Repeater Group.
+The Constitution is here: [[:Media:20250423 GB3HV REPEATER GROUP CONSTITUTION.pdf]]
+The Constitution and Site Agreement were discussed and agreed at the inaugural meeting of the GB3HV repeater Group on Tuesday 29 April 2025.  The record of the meeting is here: [[:Media:20250429 GB3HV Repeater Group Formation Meeting Record.pdf]]
 ==Equipment and rebuild==
-We are also taking the opportunity to rebuild HV and in particular we are hoping to get rid of all the yellow phono plugs and go digital in, digital out.  This has been possible by the great done by Dave G8GKQ on the BATC repeater controller project which uses HDMI video switchers - see https://wiki.batc.org.uk/Repeater_Controller
+GB3HV has been rebuilt and is now digital in, digital out (with a 23 cm analogue RX).  This has been made possible by the great work done by Dave G8GKQ on the BATC repeater controller project which uses HDMI video switchers - see https://wiki.batc.org.uk/Repeater_Controller
-This is currently on beta test at my QTH with a stream rxr and a QO100 rxr connected and output on the HV stream: https://batc.org.uk/live/gb3hv   The Tuesday net at 8pm is still very active with a number of stations either coming in by the stream rxr or 10,499.25 MHz on QO100.
+The Tuesday net at 8pm is still very active with a number of stations either coming in by the stream rxr or relayed in by other users receiving 10,499.25 MHz on QO-100.
 ==Inputs and outputs==
-Input and outputs on the new repeater will be as follows:
+GB3HV receives on:
+cms: 437 MHz DVB-S or DVB-S2 at 1MS and 333kS with a steerable beam.
+cms: 1248 MHz DVB-S or DVB-S2 at 2MS, 1MS and 333kS with a steerable beam.
+cms: 1248 MHz FM with a steerable beam.
+GB3HV also has a stream input - contact G8GTZ or G8GKQ for details
+GB3HV transmits on 1308 MHz DVB-S2, 1 MS, QPSK, FEC 2/3
+GB3HV streams to https://batc.org.uk/live/gb3hv
+==Operating Times==
+When not switched off for maintenance, GB3HV operates at the following times (all UTC, does not change for BST):
+Receivers: 10:00 to 23:30 (the "active hours")
+Transmitter: from the hour until the half hour during the period 10:00 to 23:30.
+The transmitter is turned on at any time between 10:00 and 23:30 if a valid signal is received.  Idents are also transmitted during active hours.
+==Antennas==
+All the ATV Receive antennas can be rotated to the user direction using the [http://gb3hv.ddns.net/ GB3HV Rotator Control]
+# 23cm RX 15dBd (17dBi) Antec 'Plate' antenna. H polarised.
+# 70cm RX 11.5dBd (13.6dBi) 'J-Beam' Multi-beam antenna. H polarised.
+The Talkback and DTMF control is vertically polarised.
+m/70cm X-30A Dual Band Collinear. 3dBd/5.5dBd (5.1dBi/7.6dBi)
+Transmit  antenna:
+cm TX 6dBd (8.1dBi) Antec Omnidirectional 'Plate' Array. [Radiating 50W ERP]. H polarised.
-cms 437 MHz DATV rx on 2ms, 1ms and 333ks with steerable beam.
+==DTMF Control==
-cms 1248  DATV rx on 2ms, 1ms and 333ks with steerable beam.
+During operating hours, GB3HV can be DTMF controlled to show a specific input.  The DTMF receiver is on 144.75 MHz and the codes are:
-cms ATV analogue rx and potentially 5.6GHz ATV rx
+ *10# Repeater Controller
+ *11# 70 cm Digital Receiver
+ *12# 23 cm Digital Receiver
+ *13# Stream Receiver
+ *14# 23 cm Analogue FM receiver
+ *15# Quad View
-We will be applying for 23cms and 3.4GHz transmit NoVs.
+ *00# Reset to normal operation
 ==Financials==
-A lot of the rebuild has been made possible by 2 generous BATC grants but going forward we will looking for a small annual subscription to cover the costs (including power) of operating at Roy’s.
+A lot of the rebuild has been made possible by 2 generous BATC grants but going forward we will looking for a small annual subscription (currently £20) to cover the costs (including power) of operating at Roy’s.  Please contact the Treasurer, Justin G8YTZ at justin.cockett@me.com