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Ultra Low Frequency Antennas
Antennas for 300 Hz to 4 KHz

Ultra Low Frequency Antenna 300 Hz - 4 KHz

ULF Band antenna offers high sensitivity and narrow bandwidth.

Directional to help reduce interference and zero-in on desired signal.

Weather-proof plastic case.

Binding post connections.

Monster-size 12.3 inches long x 1.02 inch inch diameter ferrite rod core for maximum reception.

Part Number: 12ULF300H4KBC is an Ultra Low Frequency antenna for 300 Hz - 4 KHz range, and can be user tuned with external fixed value capacitor user supplies.

Antenna also can be used broad-band to listen to tweeks and whistlers and other natural radio waves.

Specification: (+/- 10 %): 1000 pF tunes @ 3 KHz

Tuning Data: 0.1 uF tunes @ 300 Hz, 0.01 uF tunes @ 970 Hz, 5,000 pF tunes @ 1.3 KHz, 1400 pF tunes @ 2.5 KHz, 1000 pF tunes @ 3 KHz, 400 pF tunes @ 4.4 KHz.

NOTE: Antenna 12ULF300H4KBC is 14 inches long and has a 12.3 inch x 1.02 inch ferrite core.
NOTE: Antenna 24ULF300H4KBC is 24 inches long and has a 22.5 inch x 1.02 inch ferrite core.
NOTE: Antenna 36ULF300H4KBC is 36 inches long and has a 34 inch x 1.02 inch ferrite core.

Part # FrequencyPrice
12ULF300H4KBC300 Hz - 4 KHz$ 250.00
24ULF300H4KBC300 Hz - 4 KHz$ 375.00
36ULF300H4KBC300 Hz - 4 KHz$ 475.00


Optional variable tuning capacitor for this antenna

NOTE: These antennas are bi-directional having a 'figure 8' pattern.


ULTRA LOW FREQUENCY ANTENNA
150 Hz - 1.5 KHz

tuned directional antenna

For use in

  • ULF reception,
  • geologic research,
  • EM research.

    Antennas in this range are useful for specialized remote sensing applications.

    MUF21 antennas feature a Mu-Metal Core for stable performance and high Q.

    Research applications include: Geophysics, Meteorology, Mineral Exploration, etc.

    Directional to help reduce interference and zero-in on desired signal.

    Works for both narrow-band and broad-band ULF reception.

    Can operate narrow-band in series or parallel tuned mode.

    Antennas are cased in weather-proof PVC plastic with two binding post connections.

  • MUF21 is 24 inches long.
    ULF Antenna
    Part # Radio Band Low Freq Hi Freq __Price
    MUF21-150H-1500H-BCUltra Low Frequency 150 Hz 1.5 KHz$ 295.00

    TUNING DATA: MUF21-150H-1500H-BC
    1 uF = 150 Hz.
    0.1 uF = 500 Hz
    0.047 uF = 700 Hz
    0.0047 uF = 1.4 KHz
    1000 pF = 1.6 KHz
    0 pF = 1.7 KHz

    Click Here for Data Sheet. Part Number: MUF21-150H-1500H-BC.

    DC - 30 KHz Wideband Instrumentation Amplifier for use with these antennas.

    S/H UPS ground extra.


    See our complete line of standard antennas:

    Antennas for Short Wave 1.7 MHz - 4 MHz
    Antennas for AM Broadcast Band 530 KHz - 1710 KHz
    Antennas for Long Wave and 30 KHz - 530 KHz
    Antennas for Very Low Frequency 3 KHz - 30 KHz
    Antennas for Ultra Low Frequency 300 Hz - 3 KHz
    Antennas for Super Low Frequency 30 Hz - 300 Hz
    Antennas for Extremely Low Frequency 0.03 Hz - 30 Hz