Frequently Asked Questions:

What is the difference between the SayWeather Base and SayWeather Pro weather systems?

  • SayWeather™ Base includes a Davis Vantage Vue (Davis #6250) weather station; SayWeather™ Pro includes a Davis Vantage Pro2 with fan-aspirated outdoor temperature/humidity sensor (Davis #6153) weather station.
    • The Vangage Vue has an integrated wireless outdoor weather sensor (temperature, humidity, anemometer, wind direction and rainfall).
    • The Pro2 has a separate outdoor humidity/temperature/rainfall sensor module and wind direction/anemometer sensor module.
    • The Pro2's separate outdoor sensors allows installing the anemometer higher on a smaller mounting pole (eg. at 30' above ground level recommended by the FAA for federal installations) and the outdoor rain/temperature/humidity sensors nearer ground level (eg. at 5' or 2' above average snow level above ground level recommended by the FAA for federal installations).
    • The Pro2's separate sensors can lower cost and increase ease of installation since a
    • close-to-ground rain gauge receptacle can be easier to clean debris vs. the Vue's integrated sensor suite, which is typically mounted high up in clear air.
    • The Pro2 outdoor sensors and barometric pressure sensor can be NIST calibrated, whereas only the Vue's barometric pressure, indoor temperature/humidity may be NIST calibrated
    • The Pro2 system includes a solar-powered fan-aspirated temperature/humidity radiation shield, so it can more accurately measure temperature and dew point in sunny locations. We confidently include density altitude in the advisory with Pro systems due to higher temperature accuracy.

    • The Pro2 console, which attaches to the SayWeather main console, has a multi-channel wireless receiver, and is expandable for future SayWeather system upgrades, such as measuring soil moisture on your grass strip runway.
    • The Pro2 station is somewhat more expensive and thus is the SayWeather Pro system.
    • Please see the weather station manufacturer's specifications linked below for details.

  •  SayWeather Pro includes the Publish Weather to Internet (PWI-1) option, which wirelessly sends weather information to www.wunderground.com. PWI-1 is an option with SayWeather Base systems.

What does the included weather station look like? How accurate is it? Do you have a specification sheet for the weather stations?

Please see the weather station manufacturer's specifications for details.

SayWeather™ includes either a Davis Vantage Vue (Davis #6250) or a Davis Vantage Pro2 with fan aspirated outdoor temperature/humidity sensor (Davis #6153)  weather station.

 

Why use Davis weather stations?

Simply- great value. We chose Davis Instruments as our weather station providing partner because: the product is of high quality and durability; they have available parts and calibration support, they are renowned for use in commercial applications, and they have been making great products for over 50 years. They are also reasonably priced, so your weather advisory system doesn't cost a lot. Davis sells and support their stations worldwide.

 

What is the annual cost for SayWeather and the online publishing?

SayWeather™ is affordable to buy, install, and maintain. Generally, there are no annual costs. Once you purchase the system, there are no fees associated with retrieving your data. We publish data to Weather Underground, the world's largest source of online personal and private weather stations. There is no fee to set up an account or view your data. Cleaning debris from the rain bucket debris filter and periodic calibrations are suggested.

 

This looks like a great capability. What do the regulations say about its use?

SayWeather™ is like an FBO operator providing surface conditions over the UNICOM, but SayWeather provides these advisories 24/7.

CFR 47.87.219 (see https://www.law.cornell.edu/cfr/text/47/87.219 ) addresses its use for automatic operations at airports not having an operational ASOS/AWOS.

Its use is also noted in the FAA Aeronautical Information Manual 4-1-9.a.3: Many airports are now providing completely automated weather, radio check capability and airport advisory information on an automated UNICOM system. These systems offer a variety of features, typically selectable by microphone clicks, on the UNICOM frequency. Availability of the automated UNICOM will be published in the Airport/Facility Directory and approach charts.

 

How frequently is the weather information updated?

SayWeather™ retrieves weather from the weather station every 5 seconds and reports current information on the console's LCD display, and to the pilot over the VHF radio when queried. Wind speed and direction are reported as 2-minute averages. Gusts are reported as 10-minute peak wind speed.

 

Does the SayWeather system include weather sensor head mounting poles, tower, etc?

The user's mounting requirement are unique, so mounting poles or tower are not included in your kit. Please refer to the Davis weather station documentation for guidance on mounting your weather sensor.  Please contact us to discuss special mounting requirements.

 

Why doesn't the +REC-1 option include a video camera?

Since users may want different camera features and resolutions (standard, HD, wired, wireless, etc.), we offer them as an accessory. The SayWeather/REC-1 option includes a 6-pin RJ-12 (telephone jack) connector that produces a switch closure between two of its contacts. This is often all that is needed to trigger a camera having external 'alarm' input capability. Contact us if you have additional questions regarding cameras.

 

I already own a Davis Vantage Vue (or Vantage Pro2) weather station. Can I just use that instead of buying another?

Yes- or you can keep your existing one as a spare. A SayWeather™ base unit connects to either a Vantage Vue or Pro2 (with fan-aspiration) weather console. If your Davis console is connected to a personal computer, it instead must be connected to the SayWeather™ base unit via a special 9-pin Serial (RS-232) adapter cable. If your computer is currently used to publish weather data to wunderground.com and you wish to maintain that feature, you will need to purchase the SayWeather™+PWI-1 option. Please contact us for pricing on a SayWeather™ unit excluding the weather station and to discuss configuration options.

 

I have a spare aviation radio. Do I really need a new one?

The SayWeather™ base unit is only compatible with the Yaesu FTA-550 AA transceiver that is included with each system. We've found it to be reliable, responsive, and it can be kept plugged in all the time. Also, we include an AC power adapter and wall-mount not normally included with the Yaesu.

 

Where can I get a sound file for my airport name, or speech in other languages?

When you purchase your SayWeather™ system, we'll contact you to customize your unit for your airport. If you need to later make changes you can simply email support@sayweather.com with your request, and we'll send you your customized sound files. Or you can make your own. Whichever you prefer.