Amateur Radio Public Seismic Network

Amateur Radio Public Seismic Network (ARPSN)
Current Equipment

TM-D700AG
http://www.kenwoodusa.com/Communications/Amateur_Radio/Mobiles/TM-D700A

Kenwood continues to provide new and advanced APRS™ ham radio equipment by introducing the new TM-D700A mobile transceiver. For current owners of the TH-D7A handheld with built-in TNC and APRS™ software, the TM-D700A offers even more features and versatility. The TM-D700A is unlike any other dual-band mobile radio Kenwood has ever produced. The control head is detached and comes with remote cable for easy installation. The new radio also incorporates a 9-pin PC connection for easy hook-up to program frequencies and other APRS™ mapping programs. Your TM-D700A is a full dual-band operation radio so VHF+VHF/VHF+UHF/UHF+UHF operation is possible. Full digipeater functions allow anyone to set up a digipeater location wherever needed to help fill in APRS™ nationwide network. Internet gateway operation is also possible for world-wide text communication over VHF.

General Features

• 144/440 MHz TX operation
• 118-1.3 GHz receive with cellular + blocked
• Built-in 1200/9600 bps TNC
• 200 memory channels/PC programmable
• 10 memory scan bands possible
• Visual band scope for scanning activity
• DX packet cluster monitoring
• Grid square locator
• NMEA 0183 GPS input terminal
• Built-in CTCSS
• Built-in digital coded squelch (NEW)
• Remote control and cross-band repeater operation
• Mars modifiable with permit
• 64 character international messaging with Interet gateways
• NEW backlite alphanumeric microphone for message input
• Position (latitude/longitude) memory function
• Transmit message memory function

Specifications

APRS Yes
ARRL TravelPlus Compatible No
Cross Band Repeat Yes
CTCSS Enc/Dec
DCS Enc/Dec
Dual Band Receive Yes
Dual Receive on Same Band (VxV, UxU) Yes
EchoLink Memory Automatic Dialer No
EchoLink Sysop Mode For Node Terminal Operation No
Extended Receive VHF Band, UHF Band 118-470MHz
VHF Band, UHF Band 136-174MHz 300-524MHz
excluding cellular band
Memory Channels 200
Number of Bands 2
Output Power 50W VHF
35W UHF
Packet Cluster Tune Yes
PC Programmable Yes
Receiver Operating Mode FM-W/AM
SkyCommand Yes
TNC Yes
Transmit Frequency Range 144-148MHz
430-450MHz
Voice Synthesizer (Optional) Yes VS-3
Weather Alert No
Wide/Narrow FM No
Wireless Remote Yes

Comet GP-9

Comet GP-9 DualBand antenna 146/446MHz

GP-9 (with SO-239 Conn) GP-9N (with N-Conn)
DualBand 146/446MHz
Gain & Wave:
146MHz 8.5dBi
5⁄8 wave x 3
446MHz 11.9dBi
5⁄8 wave x 8
VSWR: 1.5:1 or less
Max Power: 200 watts
Length: 16' 9"
Weight: 5 lbs. 11 oz.
Mounting to Mast Size:
11⁄4-21⁄2"
Connector:
SO-239 or Female N-type
Construction:
Heavy-duty fiberglass, 3 sections

VolksMeterII - 1RU
http://www.rllinstruments.com/

VolksMeter II with cover removed VolksMeter II with cover in place

VolksMeter II Sensor Components

The VolksMeter II is a Seismometer/Tiltmeter. It is based on a unique, patented sensor technology that provides low frequency capabilities not found in any other seismometer, at a fraction of the price of conventional professional instruments. The VolksMeter requires a dedicated PC (Windows XP, 2000 or Vista OS) for control, data logging, display, analysis and, optionally, networking.

The VolksMeter is appropriate for geophysical research, education and the amateur seismologist.

[A VolksMeter II 1RU Single Channel can be upgraded to 2RU Dual Channel]

Performance/Capabilities

* Detects and measures local and teleseismic earthquakes
* New window on VERY-LOW-FREQUENCY earth motions
* Sensitive Tiltmeter
* Optional GPS-based time standard

Powerful, User-Friendly Software

* WinSDR for control, data acquisition, display and recording
* WinQuake for display, analysis and data conversion
* Compatible with USGS "Earthworm" seismic recording package
* Easily generate TRUE power spectral densities (in progress)

GPS Receiverconnected to VolksMeter

Optional GPS Time Standard

The VolksMeter is equipped to use an optional GPS-derived time standard that provides a clock that is accurate to ±2mS. This is useful in teleseismic research where knowing the precise time of a seismic wave arrival is critical. The GPS unit consists of a GPS receiver and 16 foot long RS232-C cable that plugs into the GPS port on the VolksMeter. Extension cables may be used if necessary. The GPS receiver also provides a precise location (latitude and longitude) for the VolksMeter (more specifically, the GPS receiver, which may be positioned some distance from the VolksMeter itself). The GPS-Receiver is powered by the VolksMeter.

In the absence of the GPS option, the time stamp for instrument data is derived from the support computer, which may be off by seconds or more, depending on how the computer clock is set.

The GPS Receiver is weather-resistant and is intended to be mounted outside, with a clear view of the sky. (At the RLL Instruments test site, the GPS Receiver is located on the roof of the building, at the far end of a 100 foot extension cable.)

http://www.rllinstruments.com/VMIIDSPg6.htm

1RU to 2RU Upgrade
Assembling VolksMeter II - 2CUG Kit
http://www.flyingsnail.com/AmateurRadio/assm2cug.html
"And I did it my way" - Sid Vicious (-;
2CUG Kit Highlighted - Tools are part of the original 1RU
2CUG Kit Highlighted - Tools part of original 1RU

http://www.rllinstruments.com/

L15B - A/D & Amp. Filter - L15B

Mark Products L15Bs with A/D and Amp/Filter by Lar ry Cochrane in box

Mark Products L15B - http://psn.quake.net/geophone/index.html

A/D - http://psn.quake.net/serialatod.html

Enclosure - http://psn.quake.net/datalogger/index.html

Amp. Filter - http://psn.quake.net/serialamp.html

Davis 6152c (cabled) Weather Station
http://www.davisnet.com/weather/index.asp

Davis 6152c (cabled) Weather Station

with WeatherLink APRS software (6540). More information located on Progress Log page.