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uBLOX MAX-M8Q 5V GPS Breakout for Active Antennas
$34.95This is an assembled breakout board with a uBLOX MAX-M8Q-10 module and SMA female connector suitable for connecting to a suitable active patch antenna (See related products).
Suitable for HAB Usage Max Altitude 50,000 meters / 164041 feet in Flight Mode.
The board is constructed on 1.6mm PCB and features a PPS LED and Supercap for retaining settings through power cycles. Improved power filtering over previous versions.
On the header are TX, RX, TP (PPS Output), 5V Supply (4.5V to 30V), I2C SDA/SCL and GND.
The MAX-M8Q delivers all the benefits of the u-blox 8 GPS platform in a more compact form factor than ever before: high-sensitivity, intelligent power management.
Supporting temperatures down to -40'C and featuring a TCXO for better power saving and quicker startup the MAX M8Q is an ideal module.
As per the data sheets the MAX M8Q can use upto 22mA under aquisition (5mA in power save mode once tracking).
The breakout has the following dimensions : 22mmx22mmx1.6mm approximately.
The default baud rate is 9600bps.
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Leo Bodnar Icom IC-9700 Reference Injection Board
$49.95- Adds frequency reference/stability to the Icom IC-9700
- This module allows locking the ICOM IC-9700 radio transceiver internal frequency reference, to an external 49.152MHz signal. If the internal reference is locked to a GPS signal, achievable ICOM stability can be better than 1Hz on all bands.
- Installing this module inside the ICOM IC-9700 does not require any soldering or modification to internal circuitry. This modification is completely reversible and should not affect your warranty.
- This module is designed to be used and has been tested with the Leo Bodnar GPS reference clocks signal sources.
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440 MHz Filter/Preamp
$52.95Uputronics filtered preamps for improved reception on 440 Mhz.
This is a cost effective SAW based unit which give excellent performance gains.
All Uputronics preamps are compatible with most USB SDR Dongles such as the Airspy. You can power them from either bias tee (This item is 100% compatible with the Airspy bias-tee) or a simple USB minicable (Purchased separately). Bias tee/USB voltage is 5V max.
This unit is a small filter and preamp designed to go between a software defined radio receiver and an antenna. Using a SAW bandpass filter and a low noise amplifier (LNA), it stops out of band intermodulation while providing additional gain for increased sensitivity. The LNA is before the SAW filter. To block strong commercial FM signals a high pass filter is installed before the LNA.
The LNA used is a MiniCircuits PSA4-5043+ which provides at least 19dB of gain. To stop out of band intermodulation a 440Mhz SAW bandpass filter, which has a 15MHz bandwidth is also present. The insertion loss of this filter is approximately 2.3dB, which does increase the overall noise figure of the unit to 0.75dB.
The connectors on both input and output are SMA Female. The external power connector is a USB-C and this revision has a power LED.
Datasheets:
https://store.uputronics.com/files/HAB-FPA_Datasheet_Latest.pdfMechanical diagram:
https://store.uputronics.com/files/LNAMechcanicalDiagramV2.pdfQuick View -
USB-to-USB-C Cable for Filter/Preamps (newer style)
$4.95- USB cable for the Filter/Preamps and Preamps that have a USB-C connector.
- For use when Bias-T is not available (when Airspy is not used)
- NOTE: Color may vary
- NOTE: NOT compatible with Airspy (use OEM cable)
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USB-C-to-USB-C Cable for Filter/Preamps (newer style)
$4.95- USB cable for the Filter/Preamps and Preamps that have a USB-C connector on BOTH ends.
- For use when Bias-T is not available (when Airspy is not used)
- NOTE: Color may vary
- NOTE: NOT compatible with Airspy (use OEM cable)
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LeoNTP 1200 (Network Time clock)
$650.00LeoNTP Time Server 1200 is a Stratum 1 Master Clock / Time server with GPS synchronised clock source designed from the ground up with the sole purpose of providing a cost effective but highly accurate and extremely high performing networked time server. Extremely easy to setup and configurable with flexible power options USB/PoE (802.3af) it can provide accurate synchronised time for your LAN, WAN, CCTV, PLC, Telephone systems or anywhere accurate standalone time is required.
Optional 1U rackmount for mounting one,two or three units (Rack mount kit comes with shelf, screws and 2 blanks. Each kit can take one, two or three LeoNTP 1200 units)
Optional DIN Rail Mounting Kit
Unit can sustain 100Mbps (> 100,000 NTP Packets a second)
Traditional Master Clocks either have high performance or low cost. With LeoNTP Time Server 1200 you can have both in the same package.
Key Features
- True Stratum 1 NTP Compatible Master Clock / Time Server.
- Can serve tens of thousands of clients.
- Very cost effective
- Supports NTP/SNTP
- Front TFT Display for time display and configuration
Network:
10/100Mb RJ45 Autosensing
IPV4 DHCP/Static IP
IPV6 SLAAC/Static (DHCPv6 not supported)
Time:
NTP V2, V3, V4, SNTP V3, V4
NTP Requests/sec:
>100K (Wire speed) per unit.
> 1million concurrent clients typical
GPS:
72 Channel
-167dBm Sensitivity
Power for active antenna supplied via bias tee.
Power:
USB/ 48V PoE 802.3af
Timing Performance:
GPS Accuracy:
30ns RMS, 60ns 99%
Cold Start acquisition < 30s
NTP Accuracy:
< 1µS Hold over on loss of GPS signal Typically 1-4ms in 24 hours Reverts to Stratum 16 after 24 hours with no GPS
Mechanical Dimension:
140mm x 170mm x 45mm
BNC Output:
PPS/1Mhz/10Mhz Accuracy 30ns RMS, 60ns 99%
Warranty:
1 year RTB
Lifetime Firmware updates and support.
In The Box :
1 x LeoNTP Time Server 1200 Device
1 x GPS Puck Antenna with 3 meter cable
1 x USB Cable
1 x 2 meter RJ45 Patch Cable
See associated items for external timing antenna and BNC to MCX cables.
Documents:
LeoNTP 1200 Time Server Manual
Frequently Asked Questions:
Q/ Is this unit based on Linux and NTP ?
A/ No the hardware and code running it are completely propriety and don’t use any source code from Linux or NTP. This is done to ensure maximum performance with no overheads and security issues.
Q/ Can I configure it via HTTP/Telnet ?
A/ No. Running a web server on this device although entirely possible would reduce the performance of the unit. Therefore we took the decision to just do configuration via the front panel.
Q/ The performance figures look too good to be true at the price
A/ The performance figures are the result of a focused determination to get the best performance out of the hardware. By not using off the shelf hardware and software we have no overheads or compromises. Try it yourself using Miroslav Lichvar's ntpperf tool.
It only starts to drop when the 100Mb interface is maxed out:
nevis@test:~/ntpperf$ sudo ./ntpperf -i enp5s0 -m 70:B3:D5:E3:D0:04 -d 172.16.1.72 -s 172.16.1.0/16 -B
| responses | TX timestamp offset (ns)
rate clients | lost invalid basic xleave | min mean max rms
1000 100 0.00% 0.00% 100.00% 0.00%
1500 150 0.00% 0.00% 100.00% 0.00%
2250 225 0.00% 0.00% 100.00% 0.00%
3375 337 0.00% 0.00% 100.00% 0.00%
5062 506 0.00% 0.00% 100.00% 0.00%
7593 759 0.00% 0.00% 100.00% 0.00%
11389 1138 0.00% 0.00% 100.00% 0.00%
17083 1708 0.00% 0.00% 100.00% 0.00%
25624 2562 0.00% 0.00% 100.00% 0.00%
38436 3843 0.00% 0.00% 100.00% 0.00%
57654 5765 0.00% 0.00% 100.00% 0.00%
86481 8648 0.00% 0.00% 100.00% 0.00%
129721 12972 15.49% 0.00% 84.51% 0.00% <- 100Mb Interface Saturated 194581 16384 43.65% 0.00% 56.35% 0.00% 291871 16384 62.43% 0.00% 37.57% 0.00%
Q/ Can the unit be firmware updated?
A/ Yes via USB into a Windows PC or Mac. Updates take about 5 seconds to apply.
Q/ Is the BNC output compatible with the Airspy
A/ Yes. Set the BNC output to 10Mhz. Connect the unit to your Airspy via the optional BNC to MCX cable and power the Airspy on.
Q/ Can the unit display my local time ?
A/ Yes. Press the button on the clock screen and use the knob to select your time zone.
Q/ Whats the maximum length of coax to the antenna ?
A/ This depends on the antenna and coax. We've tested our timing antenna (comes with 10 meters of coax) with a 20 meter extension and it works fine. The unit is POE so it may be easier to run a network cable closer to the antenna and install the unit there.
Q/ Does the unit support IPv6
A/ Not currently its in the pipeline and will be available to all units on release via firmware update.
Q/ What happens on loss of GPS Signal
A/ The unit enters failover mode which uses internal compensation to maintain the accuracy of the timing to 1-4ms typically over 24 hours. After 24 hours with no GPS signal the unit reverts to being a Stratum 16 time source.
Q/ Leap Second Support
A/ The unit has leap second support and a count down timer to the next leap second insertion.Quick View -
LeoNTP 1200 Rack Mount Kit
$150.00LeoNTP 1200 1U rackmount for mounting one,two or three units (Rack mount kit comes with shelf, screws and 2 blanks. Each kit can take one, two or three LeoNTP 1200 units)
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