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T1B10

COMMISSION'S RULES · Frequency allocations; Emission modes; Spectrum sharing; Transmissions near band edges; Contacting the International Space Station; Power output

T1B10§ 97.305(c)T1B →

Where may SSB phone be used in amateur bands above 50 MHz?

  1. AOnly in sub-bands allocated to General class or higher licensees
  2. BOnly on repeaters
  3. CIn at least some segment of all these bands
  4. DOn any band if the power is limited to 25 watts
Why Section 97.305(c) lists authorized emission types band by band, and every amateur allocation above 50 MHz includes at least a segment where phone emissions such as SSB are permitted. Unlike the HF bands, where CW/data-only segments and license-class sub-bands are common, the VHF, UHF and microwave bands are wide open to voice over much of their range, with only small portions (like the bottom of 6 m and 2 m) set aside by band plan for CW and weak-signal work. So a Technician operating SSB on 6 m, 2 m, 1.25 m, 70 cm and higher is on solid legal ground.
Watch out The idea that SSB is limited to General or higher sub-bands applies to HF, not to bands above 50 MHz, where Technicians have full privileges; the 25 watt limit is a made-up condition, though a 25 W PEP cap does exist on 60 meters, which is HF.
Above 50 MHz, Technicians have it all: every band has room for SSB phone.
HamSandwich explanation, first draft. The question and answers are the NCVEC text.
47 CFR 97.305(c) Authorized emission types.

(a) Except as specified elsewhere in this part, an amateur station may transmit a CW emission on any frequency authorized to the control operator.

(b) A station may transmit a test emission on any frequency authorized to the control operator for brief periods for experimental purposes, except that no pulse modulation emission may be transmitted on any frequency where pulse is not specifically authorized and no SS modulation emission may be transmitted on any frequency where SS is not specifically authorized.

(c) A station may transmit the following emission types on the frequencies indicated, as authorized to the control operator, subject to the standards specified in § 97.307(f):

eCFR text as of 1 Sep 2026 · read on ecfr.gov
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The rest of T1B

  1. T1B01 Which of the following frequency ranges are available for phone operation by Technician licensees?
  2. T1B02 Which of the following U.S. amateur radio operators are allowed to contact the International Space Station (I…
  3. T1B03 Which frequency is in the 6-meter amateur band?
  4. T1B04 Which amateur band includes 146.52 MHz?
  5. T1B05 Which of the following bands include frequencies where Technicians are authorized to use digital modes such a…
  6. T1B06 On which HF bands does a Technician class operator have phone privileges?
  7. T1B07 Which of the following VHF/UHF band segments are limited to CW only?
  8. T1B08 How are US amateurs restricted in segments of bands where the Amateur Radio Service is secondary?
  9. T1B09 Why should you not set your transmit frequency to be exactly at the edge of an amateur band or sub-band?
  10. T1B10 Where may SSB phone be used in amateur bands above 50 MHz?
  11. T1B11 What is the maximum peak envelope power output for Technician class operators in their HF band segments?
  12. T1B12 Except for some specific restrictions, what is the maximum peak envelope power output for Technician class op…
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