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Home>All Products

HF35C by Gigahertz Solutions (RF - Microwave meter)

Part Number HF35C
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HF35C by Gigahertz Solutions (RF - Microwave meter)
Gigahertz Solutions HF35C Meter
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Questions about this item? Ask here. Questions about this item? Ask here. (See 3 Questions)
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$320.00
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100x Attenuator for Measuring up to 200,000 W/m Optional Attenuator for Higher Power Density Readings - ElectraHealth does NOT recommend this option for most people [+$58.00]
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Description
Our #1 Selling RF Meter - Recommended by experts like Dave Stetzer, Dr. Samuel Milham, Dr. Klinghardt, building biologists, any many others.  

The Gigahertz Solutions HF35C RF-Analyzer (also known as the eHF35C, eHF 35C or HF 35C) is the gold standard in measuring radiation from smart meters, cell phones, towers, WiFi, cordless phones, baby monitors, Bluetooth, microwave towers, air traffic control, and more.  Easy to use, this meter is fantastic for measuring exposure and seeing the effects of remediation (such as shielding).  Are you looking to reduce exposure in your home?  It's hard to shield using conductive cloth or other materials unless you can measure your results.

This meter actually accurately measures the strength of the field in microwatts per square meter (W/m).  The HF35C is Made in Germany by Gigahertz Solutions.

From the manufacturer:

This is THE device for technical amateurs - especially easy to operate. It supports all above mentioned "common advantages" and it allows a straight forward assessment of the exposure, a determination of suitable remedial actions, as well as a control of their effectiveness.

Has the same features and configuration as the HF32D, however additionally offers

  • Audio analyses for the identification of pulsed radiation sources (mobile radio (GSM, UMTS/G3), cordless telephones (DECT), WLAN (Bluetooth), air-traffic control radar) by means of an acoustic signal proportional to the modulation frequency.
  • Display of peak value as well as average value (switchable).
  • Sensitivity increased by a factor of 10 (from a minimum display resolution of 0.1W/m to a maximum of 1999 W/m).
  • HINT: Our best-selling meter for the easy evaluation!

Frequency Range: 800 MHz - 2.5 GHz
Measurement Range: Power flux density: 0.1 - 1999 W/m
Accuracy: Basic accuracy including linearity tolerance : +/- 6dB
Zero offset and rollover +/- 9 digits
Sensor: Logarithmic periodic antenna
Audio Analysis: Identification of pulsed radiation sources (mobile radio (GSM, UMTS/G3), cordless telephones (DECT), WLAN (Bluetooth), air-traffic control-radar) by means of an acoustic signal proportional to the modulation frequency
Electric power supply: 9 Volt alkaline manganese battery (included), average operation time 6 - 7 hours
Low-Batt. indication, auto-power-off
Signal Rating: Display of peak value as well as average value (switchable)
Further Questions: 2 years manufacturer warranty & long-time ex gratia agreement
Weight: 0,49 kg

 

Includes:

  • Measurement device
  • attachable log.-per. antenna incl. cable
    alkaline manganese battery
  • detailed instructions manual with factual background information

What settings do I use and how do I use the meter?

On the left side of the meter there is a switch that switches between RMS and Peak.  RMS is like an average.  We are not interested in that.  We never use the RMS setting.  The meter should always be set to Peak.

On the right side of the meter, it is best to have it set to 0-199.9 W/m initially.  This will give you the best sound and is the most sensitive.  If you get a reading of 0 on the far left of the screen, and you hear lots of sound, that means the meter is maxed out.  Stepping back will lower the reading.  You can also shut the meter off and then switch it to the 0-1999 setting.  This will allow you to read up to about 2000 W/m instead of only 200.  The sound isn't as good, but if you are maxed out and you need to get a reading, then use this higher setting.

Using the recommended settings above (Peak and 0-199.9 W/m ) you can hold the meter and "sweep" back and forth.  When you pick up a signal, you will hear sound.  Focus in on that sound by finding where it is the loudest/clearest.  Sometimes turning or tilting the meter left and right (on its long axis) like you are tipping it from side to side will help you get the best (highest) reading from the source.

Do I need the optional attenuator?

Most people do not need the attenuator.  It allows you to measure readings 100 times higher.  If your HF35C is maxing out (over 2,000 microwatts per square meter) and you really would like to have an idea how high it is or perhaps right down the readings for keeping records and as evidence, then you will want the attenuator.

Recommended readings:

There is no safe level of exposure.  But as a guide, we would like to keep the readings around 3 or 4 microwatts per square meter.  Another doctor has said 5 or below, but the recommendations we've been using are set by the International Institute for Building Biology and Ecology:

.1 or less W/m.1 to 10 W/m10 to 1000 W/m1000 or more W/m
No ConcernSlight ConcernSevere ConcernExtreme Concern

The lower the better.  Ideal is 0 - nothing.  If you have sources of microwaves in your home/office, including smart meters, our advice is always to replace the device with a non-wireless, non-microwave device.  Shielding is an option, and can provide good temporary relief, but eliminating the source is even better.
Questions and Answers
Q: Will this device measure the amount of radiation in my home from a PLC smart meter? My electric company tells me it is a Power Line Communication smart meter. Thank you for your time...
Asked by: Joe - 3/11/2015 (Submit an answer)
A: Hello Joe,

The HF35C will measure wireless transmissions from "regular" smart meters which transmit wirelessly. If your meter is NOT wireless - you should use the Stetzerizer Microsurge Meter for measuring it. You would need to compare it with an analog electric meter, however.

Keep in mind two things. 1) Electric utility employees frequently give out misinformation, whether by mistake or on purpose (probably more often the latter). Just because a utility says that your meter doesn't transmit - the BEST way to know is to check yourself with the HF35C or the Acousticom 2 or Acoustimeter.

2) We have had plenty of customers report being just as ill or MORE ill when a non-wireless (like your PLC - power line communication) meter was placed on their house compared to the original wireless meter. We suspect this is due to the dirty electricity that ALL wireless meters generate. Installing filters near the circuit breaker are always a good idea, but replacing the meter with a true analog meter is also worth while.
Was this answer helpful?    24 of 29 Customer(s) found this Answer helpful.
Answer provided by:  Shaun Kranish (3/11/2015)
Q: Will this meter show radiation from my 'smart meter' ?
Asked by: Frank - 1/25/2016 (Submit an answer)
No Answers have been submitted yet.
Q: what is the difference between acoustimeter and this meter? I have the former and will need to replace it soon. I like acoustimeter for ease of use.
Asked by: Beth - 4/26/2016 (Submit an answer)
No Answers have been submitted yet.
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