{"id":"F2023L00289","name":"Radiocommunications Advisory Guidelines (Managing Interference to Spectrum Licensed Receivers –700 MHz Band) 2023","slug":"radiocommunications-advisory-guidelines-managing-interference-to-spectrum-licensed-receivers-700-mhz","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":103944,"registerId":"commonwealth-F2023L00289-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"(subsections 5(1) and 13(2))","sectionType":"section","heading":"(subsections 5(1) and 13(2))","content":"# Schedule 1 Notional receiver performance level\n\n#### (subsections 5(1) and 13(2))\n\n#### 1 Notional receiver performance level\n\n (1) The notional level of performance for a 700 MHz band receiver in relation to an unwanted signal from a radiocommunications transmitter operated under an apparatus licence, relates to:\n (a) adjacent channel selectivity; and\n (b) receiver intermodulation response rejection; and\n (c) receiver blocking.\n (2) This level of performance is taken to be a notional receiver performance level with reference to a radiocommunications receiver sensitivity level of:\n (a) \\-96 dBm measured within a 5 MHz rectangular bandwidth that is within the frequency band of the spectrum licence, for a receiver with a bandwidth of less than 20 MHz; and\n (b) \\-89 dBm measured within a 20 MHz rectangular bandwidth that is within the frequency band of the spectrum licence, for a receiver with a bandwidth equal to or greater than 20 MHz.\n (3) A notional radiofrequency selectivity for the radiocommunications receiver (between the antenna and the antenna connector of the equipment) may be assumed to be at least equal to:\n (a) 2 + 70∙log10\\[1+(2∙FreqOffset/5)1.5\\] dB for FreqOffset ≤ 2.5 MHz;\n (b) 2 + 70∙log10\\[1+(2∙FreqOffset/5)2\\] dB for 2.5 MHz < FreqOffset ≤ 9 MHz;\n (c) 82 dB for FreqOffset > 9 MHz;\n\nwhere FreqOffset is the smallest frequency difference between either the upper or lower limits of the frequency band of the spectrum licence under which the receiver operates and any frequency outside that frequency band.\n\n (4) For the purposes of verifying these performance parameters of the notional radiocommunications receiver, the comparison of the sensitivity level and the unwanted signal is defined at the antenna connector port of the receiver unit. In this way, the performance of the entire receiving system, including the receiver unit and external filters, is taken into account.\n (5) All frequency offsets are specified with reference to the upper and lower limits of the frequency bands of the spectrum licence under which the receiver operates.\n\n#### 2 Adjacent channel selectivity\n\n (1) In this instrument, adjacent channel selectivity means the measure of the ability of a radiocommunications receiver to receive a wanted signal without exceeding a specified degradation in output due to the presence of an unwanted signal from an adjacent channel.\n (2) An adjacent channel selectivity of greater than or equal to the following relative figures for respective channel bandwidths is required:\n\n| Receiver Occupied Bandwidth | Frequency offsets from the upper and lower frequency limit of the spectrum licence receiver | Minimum relative adjacent channel selectivity (dB) |\n| --------------------------- | ------------------------------------------------------------------------------------------- | -------------------------------------------------- |\n|  20 MHz | ≤ 5 MHz | 44 dB |\n| ≥ 20 MHz | ≤ 20 MHz | 37 dB |\n\nSource: 3GPP TS 38.104 V17.5.0 (2022-04) Tables 7.2.2-1, 7.4.1.2-1 & 7.4.1.2-2.\n\n> Note: The values in the table above are the ratio between the received unwanted signal power in the adjacent (interferer’s) channel and the receiver’s sensitivity level.\n\n#### 3 Intermodulation response rejection\n\n (1) In this instrument, intermodulation response rejection means the measure of the ability of a radiocommunications receiver to receive a wanted signal in the presence of two or more unwanted signals with a specific amplitude and frequency relationship to the wanted signal frequency.\n (2) An intermodulation response rejection greater than or equal to the following values for each out-of-band signal is required:\n\n```html\n

Receiver Occupied Bandwidth

Frequency offsets from the upper and lower frequency limit of the spectrum licence receiver

Intermodulation performance requirement (dB)

20 MHz

≥ 5 MHz

44 dB

≥ 20 MHz

37 dB

\n```\n\nSource: 3GPP TS 38.104 V17.5.0 (2022-04) Tables 7.2.2.-1 & 7.7.2-2.\n\n> Note: The values in the table above are the ratio between the received unwanted signal power at the defined frequency offset and the receiver’s sensitivity level.\n\n#### 4 Receiver blocking\n\n (1) At frequencies in the following:\n (a) for radiocommunications receivers operating in 703 MHz to 748 MHz – the frequency range 683 MHz to 768 MHz;\n (b) for radiocommunications receivers operating in 758 MHz to 803 MHz – the frequency range 738 MHz to 823 MHz;\n a receiver blocking level greater than or equal to the following figures above the sensitivity level for interfering signals in the frequency ranges set out below is required:\n\n| Receiver Occupied Bandwidth | Frequency offsets from the upper and lower frequency limit of the spectrum licence receiver | Minimum blocking requirement (dB) |\n| --------------------------- | ------------------------------------------------------------------------------------------- | --------------------------------- |\n|  20 MHz | > 5 MHz | 53 |\n| ≥ 20 MHz | > 20 MHz | 46 |\n\nSource: 3GPP TS 38.104 V17.5.0 (2022-04) Tables 7.2.2-2 & 7.4.2.2-1.\n\n> Note: The values in the table above are the ratio between the received unwanted signal power at the defined frequency offset and the receiver’s sensitivity level.\n\n (2) At frequencies in the frequency range 1 MHz to 12750 MHz, excluding frequencies ranges to which subclause 4(1) applies, the receiver blocking requirement is a total mean power of -15 dBm.\n\n#### 5 Receiver antenna and feeder losses\n\n The antenna gain and feeder loss recorded for a radiocommunications receiver in the Register should be used for coordination.","sortOrder":0},{"sectionNumber":"1","sectionType":"section","heading":"Notional receiver performance level","content":"#### 1 Notional receiver performance level\n\n (1) The notional level of performance for a 700 MHz band receiver in relation to an unwanted signal from a radiocommunications transmitter operated under an apparatus licence, relates to:\n (a) adjacent channel selectivity; and\n (b) receiver intermodulation response rejection; and\n (c) receiver blocking.\n (2) This level of performance is taken to be a notional receiver performance level with reference to a radiocommunications receiver sensitivity level of:\n (a) \\-96 dBm measured within a 5 MHz rectangular bandwidth that is within the frequency band of the spectrum licence, for a receiver with a bandwidth of less than 20 MHz; and\n (b) \\-89 dBm measured within a 20 MHz rectangular bandwidth that is within the frequency band of the spectrum licence, for a receiver with a bandwidth equal to or greater than 20 MHz.\n (3) A notional radiofrequency selectivity for the radiocommunications receiver (between the antenna and the antenna connector of the equipment) may be assumed to be at least equal to:\n (a) 2 + 70∙log10\\[1+(2∙FreqOffset/5)1.5\\] dB for FreqOffset ≤ 2.5 MHz;\n (b) 2 + 70∙log10\\[1+(2∙FreqOffset/5)2\\] dB for 2.5 MHz < FreqOffset ≤ 9 MHz;\n (c) 82 dB for FreqOffset > 9 MHz;\n\nwhere FreqOffset is the smallest frequency difference between either the upper or lower limits of the frequency band of the spectrum licence under which the receiver operates and any frequency outside that frequency band.\n\n (4) For the purposes of verifying these performance parameters of the notional radiocommunications receiver, the comparison of the sensitivity level and the unwanted signal is defined at the antenna connector port of the receiver unit. In this way, the performance of the entire receiving system, including the receiver unit and external filters, is taken into account.\n (5) All frequency offsets are specified with reference to the upper and lower limits of the frequency bands of the spectrum licence under which the receiver operates.","sortOrder":1},{"sectionNumber":"2","sectionType":"section","heading":"Adjacent channel selectivity","content":"#### 2 Adjacent channel selectivity\n\n (1) In this instrument, adjacent channel selectivity means the measure of the ability of a radiocommunications receiver to receive a wanted signal without exceeding a specified degradation in output due to the presence of an unwanted signal from an adjacent channel.\n (2) An adjacent channel selectivity of greater than or equal to the following relative figures for respective channel bandwidths is required:\n\n| Receiver Occupied Bandwidth | Frequency offsets from the upper and lower frequency limit of the spectrum licence receiver | Minimum relative adjacent channel selectivity (dB) |\n| --------------------------- | ------------------------------------------------------------------------------------------- | -------------------------------------------------- |\n|  20 MHz | ≤ 5 MHz | 44 dB |\n| ≥ 20 MHz | ≤ 20 MHz | 37 dB |\n\nSource: 3GPP TS 38.104 V17.5.0 (2022-04) Tables 7.2.2-1, 7.4.1.2-1 & 7.4.1.2-2.\n\n> Note: The values in the table above are the ratio between the received unwanted signal power in the adjacent (interferer’s) channel and the receiver’s sensitivity level.","sortOrder":2},{"sectionNumber":"3","sectionType":"section","heading":"Intermodulation response rejection","content":"#### 3 Intermodulation response rejection\n\n (1) In this instrument, intermodulation response rejection means the measure of the ability of a radiocommunications receiver to receive a wanted signal in the presence of two or more unwanted signals with a specific amplitude and frequency relationship to the wanted signal frequency.\n (2) An intermodulation response rejection greater than or equal to the following values for each out-of-band signal is required:\n\n```html\n

Receiver Occupied Bandwidth

Frequency offsets from the upper and lower frequency limit of the spectrum licence receiver

Intermodulation performance requirement (dB)

20 MHz

≥ 5 MHz

44 dB

≥ 20 MHz

37 dB

\n```\n\nSource: 3GPP TS 38.104 V17.5.0 (2022-04) Tables 7.2.2.-1 & 7.7.2-2.\n\n> Note: The values in the table above are the ratio between the received unwanted signal power at the defined frequency offset and the receiver’s sensitivity level.","sortOrder":3},{"sectionNumber":"4","sectionType":"section","heading":"Receiver blocking","content":"#### 4 Receiver blocking\n\n (1) At frequencies in the following:\n (a) for radiocommunications receivers operating in 703 MHz to 748 MHz – the frequency range 683 MHz to 768 MHz;\n (b) for radiocommunications receivers operating in 758 MHz to 803 MHz – the frequency range 738 MHz to 823 MHz;\n a receiver blocking level greater than or equal to the following figures above the sensitivity level for interfering signals in the frequency ranges set out below is required:\n\n| Receiver Occupied Bandwidth | Frequency offsets from the upper and lower frequency limit of the spectrum licence receiver | Minimum blocking requirement (dB) |\n| --------------------------- | ------------------------------------------------------------------------------------------- | --------------------------------- |\n|  20 MHz | > 5 MHz | 53 |\n| ≥ 20 MHz | > 20 MHz | 46 |\n\nSource: 3GPP TS 38.104 V17.5.0 (2022-04) Tables 7.2.2-2 & 7.4.2.2-1.\n\n> Note: The values in the table above are the ratio between the received unwanted signal power at the defined frequency offset and the receiver’s sensitivity level.\n\n (2) At frequencies in the frequency range 1 MHz to 12750 MHz, excluding frequencies ranges to which subclause 4(1) applies, the receiver blocking requirement is a total mean power of -15 dBm.","sortOrder":4},{"sectionNumber":"5","sectionType":"section","heading":"Receiver antenna and feeder losses","content":"#### 5 Receiver antenna and feeder losses\n\n The antenna gain and feeder loss recorded for a radiocommunications receiver in the Register should be used for coordination.","sortOrder":5},{"sectionNumber":"(section 14)","sectionType":"section","heading":"(section 14)","content":"#### (section 14)\n\n (1) For the purpose of assessing compatibility with other radiocommunications services, the performance of a fixed radiocommunications receiver operated under a spectrum licence in the 700 MHz band is a maximum unwanted signal level of -108 dBm per 5 MHz, not exceeded for more than 5% of any 1 hour period.\n (2) Logarithmic scaling should be used to find the appropriate level in alternative bandwidths.","sortOrder":6}],"analysis":{"flash_summary":{"complexity_score":7,"scope_assessment":{"changed":false,"description":"The instrument narrowly defines notional receiver performance levels and compatibility thresholds for fixed receivers in the 700 MHz band and sets related measurement and coordination rules (cls.1–5 and s.14). The text confines scope to those receivers and unwanted signals from apparatus‑licensed transmitters; it does not on its face expand to other bands or services."},"complexity_factors":["Multiple technical metrics to meet: adjacent channel selectivity, intermodulation response rejection and receiver blocking (cl.1(1), cls.2–4).","Different numerical thresholds by receiver occupied bandwidth (<20 MHz vs ≥20 MHz) and by frequency offset ranges (cls.1(2), 2(2), 3(2), 4(1)).","Mathematical radiofrequency selectivity formula for FreqOffset with piecewise definitions (cl.1(3)), requiring calculation per receiver and offset.","FreqOffset defined relative to the upper/lower limits of the spectrum licence band (cls.1(3)–1(5)) — edge referencing increases coordination complexity.","Measurement point specified at the antenna connector and expressly includes external filters and the full receiving system (cl.1(4)), shifting verification onto combined system performance.","Prescriptive absolute and relative levels: e.g. -108 dBm per 5 MHz not exceeded 5% of any hour for compatibility assessment (s.14), plus a -15 dBm total mean power blocking requirement outside specified ranges (cl.4(2)).","Normative external reference to 3GPP TS 38.104 for many values (sources noted in cls.2–4) — interoperability with industry standards is required.","Coordination relies on registered antenna gain and feeder loss data (cl.5) — administrative dependency on the Register for practical calculations.","Compliance and enforcement burden: requires measurement, laboratory/test procedures, and operational coordination between spectrum and apparatus licence holders; translating time‑percentage and bandwidth scaling rules into operational limits adds implementation risk (s.14)."],"plain_english_summary":"**What it does:** This instrument sets minimum technical performance levels for fixed receivers in the 700 MHz band — adjacent‑channel selectivity, intermodulation response rejection and blocking — measured at the receiver antenna connector and referenced to specific sensitivity levels (-96 dBm for <20 MHz; -89 dBm for ≥20 MHz). \n\n**Who it affects and why it matters:** It governs spectrum‑licence receivers and the apparatus‑licensed transmitters that must be coordinated not to exceed those thresholds; compliance will require measurement, use of registered antenna/feeder data, and transmitter filtering or emission control (see cl.1(2), cl.1(4), cl.5, s.14)."},"kimi_summary":{"content_quality":"ok","complexity_score":6,"scope_assessment":{"changed":false,"description":"The legislation maintains its original narrow technical scope. It is a discrete advisory guideline under the Radiocommunications Act 1992, specifically addressing interference management for 700 MHz spectrum licensees. There is no evidence of scope creep; the instrument does exactly what its title suggests — sets notional receiver performance levels for this specific frequency band."},"complexity_factors":["Dense technical terminology requiring engineering knowledge (dBm, frequency offsets, rectangular bandwidth, intermodulation)","Mathematical formulas with logarithmic calculations in clause 1(3) for radiofrequency selectivity","Multiple conditional tables with bandwidth thresholds (<20 MHz vs ≥20 MHz) creating parallel regulatory tracks","Cross-references to external technical standards (3GPP TS 38.104 V17.5.0) without reproducing their content","Precise frequency band definitions with multiple sub-ranges (703-748 MHz vs 758-803 MHz with different blocking ranges)","Nested measurement conditions (antenna connector port definitions, logarithmic scaling requirements in final section)","Duplicate structure — the entire Schedule 1 appears to be repeated verbatim later in the document (possible drafting error or compilation artifact)"],"plain_english_summary":"This rule sets assumed technical performance levels for radio receivers in the 700 MHz mobile band, specifying how devices must tolerate nearby unwanted transmissions (adjacent‑channel selectivity, intermodulation rejection and blocking). It applies to mobile network operators, spectrum‑licence holders and operators of nearby transmitters, guiding network design and coordination so the band can be shared efficiently and mobile services remain reliable."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/radiocommunications-advisory-guidelines-managing-interference-to-spectrum-licensed-receivers-700-mhz","history":"/api/acts/radiocommunications-advisory-guidelines-managing-interference-to-spectrum-licensed-receivers-700-mhz/history","analysis":"/api/acts/radiocommunications-advisory-guidelines-managing-interference-to-spectrum-licensed-receivers-700-mhz/analysis","conflicts":"/api/acts/radiocommunications-advisory-guidelines-managing-interference-to-spectrum-licensed-receivers-700-mhz/conflicts","importantCases":"/api/acts/radiocommunications-advisory-guidelines-managing-interference-to-spectrum-licensed-receivers-700-mhz/important-cases","documents":"/api/acts/radiocommunications-advisory-guidelines-managing-interference-to-spectrum-licensed-receivers-700-mhz/documents"}}