from Report Order WT 97-12 fcc99234.pdf (pdf 62k)
Outstanding Special Temporary Authority grants
1. During the pendency of this proceeding, two Special Temporary Authority (STA) grants authorizing, among other things, certain amateur radio stations to transmit SS emission types that were not permitted by Section 97.311 and to transmit SS emissions on frequency bands not authorized by Section 97.305(c) have remained in force. The first was granted April 17, 1992, to Mr. Robert A. Buaas. The second was granted to two amateur radio licensees who also are TAPR members. Our decision in this proceeding obviates the need for the STAs because it eliminates the restriction on SS emission types that an amateur radio station may transmit. Our decision also does not authorize SS emissions to be transmitted in amateur service frequency bands that are permitted under the STAs. As noted above, the STA granted to Messrs. Jones and Hendricks has expired. We are terminating the STA granted to Mr. Robert A. Buaas as of the date the rules we adopt today become effective, because this Report and Order resolves the issues that formed the basis for granting his request.
History of the TAPR SS STA
- TAPR files for STA on Spread Spectrum Issues (April 10, 1996).
- ARRL letter to the FCC regarding TAPR's STA (May 15th, 1996).
- TAPR's Response to ARRL's letter regarding TAPR's STA (May 24th, 1996).
- TAPR Requests status on STA (November 6, 1996).
- TAPR receives STA on Spread Spectrum (November 8, 1996).
- Robert J. Carpenter, W3OTC, letter regarding TAPR's STA (Nov 20th, 1996).
- Request for TAPR SS STA Renewal (April 28th, 1997).
- TAPR SS STA Activity Report, April 1997.
- List of stations that were on the STA.
Page note: Correction of spelling or other errors in these documents were not made so that they may reflect the exact wording submitted to the FCC. If the authors of any the above information finds a mistake with data entry, please let us know so that we might correct the error. These documents are made available for the general amateur community and are being made available as accurate as possible.
TAPR files for STA on Spread Spectrum Issues(April 10, 1996)
PDF file of letter (15K).
Federal Communications Commission April 10, 1996 By Hand Mr. William Caton Acting Secretary Federal Communications Commission 1919 M Street, N.W. Washington, D.C. 20554 Re: Tucson Amateur Packet Radio Corporation Request for Special Temporary Authority Dear Mr. Secretary: The Tucson Amateur Packet Radio Corporation ("TAPR"), by its attorneys, hereby requests Special Temporary Authority ("STA") for TAPR to conduct an experimental program to test Code Division Multiple Access ("CDMA") spread spectrum emissions over amateur radio facilities, as described in greater detail below. The STA is requested beginning as soon as possible and continuing for a period of one year. Except for the addition of one frequency band, as noted below, TAPR is requesting identical authority to that granted to Mr. Robert A. Buaas (K6KGS) on April 17, 1992. TAPR was founded in 1982 as a international organization with interests in the areas of packet and digital communications. Today, TAPR continues as a membership supported non-profit amateur research and development organization, and currently has more than 2,000 members worldwide. TAPR continues to develop kits for the amateur community and is working actively on publications and communications standards. TAPR's members have participated in a number of experimental programs designed to investigate the value of spread spectrum emissions for the packet radio community, including experiments that later provided the basis for authorizing spread spectrum modulation in the amateur service. TAPR plans to continue its leading role in developing standards for spread spectrum communications for the amateur community through discussion groups, cooperative efforts and experimental programs such as would be permitted by the requested STA. In particular, because of the rapid development of communications hardware and software, TAPR believes that the use of hybrid spread spectrum emissions, as well as spreading codes not envisioned by Section 97.311(d) of the Rules can be employed without causing harmful interference to other amateur operators. TAPR proposes to implement an m-sequence as specified in Section 97.311(d)(1) of the Rules as a "generating function." Spreading codes will be selected from continuous segments of bits produced in the output of the generating function based on their suitability to provide uniformly distributed spectral density, code orthogonality and maximum coding gain. Each spreading code will represent one symbol in the data to be transmitted. Only the selected spreading codes will be transmitted, and each will be transmitted in its entirety. Direct-sequence spread spectrum generators using inexpensive surface acoustic wave matched filters with fixed spreading codes not related to the m-sequences specific in Section 97.31(d)(1) will also be used. Frequency hopping may be evaluated as a means for further distributing the transmitted energy. Additionally, frequency synthesized homodyne and single hetrodyne transceivers will be evaluated on each of the frequency bands proposed, time and resources permitting. TAPR is requesting STA to fully evaluate the transmission, reception and processing techniques of CDMA spread spectrum emissions. Specifically, TAPR will: * Assess the strengths and weaknesses of the proposed systems; * Evaluate the potential of spread spectrum overlay on conventional FM systems; * Study the interference potential of CDMA spread spectrum emissions, if any, to existing users of the specified frequency bands; * Evaluate the resistance of spread spectrum emissions to multipath interference; * Evaluate the ability of spread spectrum emissions to improve spectrum efficiency; * Evaluate the performance improvements potentially offered by CDMA technology; * Gain operational experience with CDMA spread spectrum techniques; and * Evaluate the proposals contained in the RM-8737 (Amendment of Part 97 of the Commission's Rules Governing the Amateur Radio Service to Facilitate Spread Spectrum Communications). The participants in this experimental will initially be various members of TAPR who are amateur radio licensees. TAPR requests authority to add participants, including licensed amateurs who are not members of TAPR, during the course of the experimental program upon notification to the Commission of such additions. The experiments will be carried out from the fixed stations listed on the station licenses of the participants, plus any portable operations as are permitted under Part 97 of the Commission's Rules. All participants hold a minimum of a Technical Class license. TAPR requests authority to operate on the following frequencies: 50-54 MHz, 144-148 MHz, 219-220 MHz, 222-225 MHz, 420-450 MHz, 902-928 MHz, 1240-1300 MHz and 2390-2450 MHz. (1) The maximum transmitter output power will not exceed 100 watts, and CDMA spread spectrum emissions will be used. TAPR expects that the antennas used for this experimental program will include dipoles, as well as collinear and Yagi arrays with gains of 0 to 12 dBi, at heights up to 30 meters AGL. Only existing, licensed antennas will be used for this experiment; no new stations will be constructed. In order to conduct the tests discussed in this letter, TAPR requests the following Rule waivers: (1) Waiver of Section 97.305(c) of the Rules is requested to permit emission type SS in the bands 6m, 2m, and 1.25m; (2) Waiver of Section 97.311(c) of the Rules is requested to provide for transmission of hybrid spread spectrum emissions; (3) Waiver of Section 97.311(d) of the Rules is requested to permit the use of other spreading codes. Accordingly, for the reasons stated herein, TAPR respectfully requests Special Temporary Authority to conduct an experimental program to test CDMA spread spectrum emissions over amateur radio facilities, as described in the instant STA request. Questions with respect to this matter should be directed to the undersigned. Respectfully submitted, Henry Goldberg Attorney for Tucson Amateur Packet Radio Corporation cc: Mr. Robert H. McNamara 1 The operational frequencies requested herein are identical to those granted to Mr. Buaas, except for the 219-220 MHz band, which was not allocated to the Amateur Radio Service at the time Mr. Buaas filed his STA request. To the extent that the addition of the 219-220 MHz band will significantly delay Commission grant of the instant STA request, TAPR requests that the STA be granted as soon as possible for all frequency bands other than 219-220 MHz, and that the 219-220 MHz request be processed separately.
ARRL letter to the FCC regarding TAPR's STA(May 15th, 1996)
OFFICE OF THE GENERAL COUNSEL 1233 20th Street, N. W., Suite 204 Washington, D. C. 20036 Telephone: (202) 296-9107 Facsimile: (202) 293-1319 May 15, 1996 Via Hand Delivery Robert H. McNamara, Esquire Chief, Private Wireless Division Federal Communications Commission 2025 M Street, N.W., 8th Floor Washington, D.C. 20554 Re: Pending Request for Special Temporary Authority, Tucson Amateur Packet Radio Corporation; CDMA Spread Spectrum Tests Dear Mr. McNamara: The American Radio Relay League, Inc. has been made aware of a request for special temporary authority received in your office on April 10, 1996, submitted by Goldberg, Godles, Wiener & Wright on behalf of the Tucson Amateur Packet Radio Corporation (TAPR). We understand that the request is defective in that it was not submitted on behalf of a Commission licensee and that you will require that a list of licensed participants, with their call signs, be submitted. With that amendment, the League would endorse and support most of the requested rule waivers. Specifically, waiver of Section 97.311(c) and 97.311(d) is consistent with the request the League has made in its petition, RM-8737, that these paragraphs be deleted from the rules. With regard to waiver of Section 97.305(c) to the extent necessary to permit spread spectrum (SS) emission in the bands 6m, 2m, and 1.25m, the League enthusiastically endorses the requested authority to use the band 219-220 MHz. Amateur stations using this frequency band, which is limited to amateur stations participating as forwarding stations in point-to-point fixed digital message forwarding systems, are subject to severe geographic limitations designed to protect the primary Automated Maritime Telecommunications Systems (AMTS) from interference. The use of SS emissions would reduce the potential for interference, and might well permit amateurs to engineer-in a system in closer proximity to an AMTS licensee than would otherwise be possible. The resulting increase in efficiency of spectrum occupancy would benefit all parties. The League notes that the limitations and requirements of Section 97.303(e) would still apply to stations operating under the requested STA. However, the League has serious concerns with regard to the proposed use of other frequencies in the 6m, 2m, and 1.25m bands. The use of these additional frequencies would not appear to be required by the objectives stated in the STA request. Among these stated objectives is: "Evaluate the proposals contained in the RM-8737." RM-8737 is the petition by the ARRL referenced earlier. RM-8737 makes no proposal for changes in the frequencies authorized for spread spectrum emission. In its development of the proposals contained in RM-8737, the League was persuaded that spread spectrum emissions pose a significant interference potential to existing amateur operations in these bands. Unlike the situation with regard to 219-220 MHz, there is no geographic separation requirement that would protect narrowband users from interference from a nearby spread spectrum transmitter. While the League is very supportive of spread spectrum emissions in the Amateur Service and particularly of continuing experimentation to determine how these emissions can be used with the least possibility of harmful interference to other spectrum occupants, with the singular exception of 219-220 MHz there is nothing in the request to suggest there would be any added value in conducting these experiments outside the bands where spread spectrum emissions are already authorized. Accordingly, the League supports granting of the STA request, if amended to show a list of participating stations; and to limit the waiver of Section 97.305(c) to the band 219-220 MHz. Yours very truly, Christopher D. Imlay General Counsel cc: Office of the Secretary Henry Goldberg, Esquire
TAPR's Response to ARRL's letter regarding TAPR's STA(May 24th, 1996)
May 24, 1996 BY HAND Mr. Robert H. McNamara Chief, Private Wireless Division Wireless Bureau Federal Communications Commission 2025 M Street, N.W. Washington, D.C. 20554 Re: Request of Mr. Greg Jones (WD5IVD) and Mr. Dewayne Hendricks (WA8DZP), Tucson Amateur Packet Radio Corporation ("TAPR"), for Special Temporary Authority Dear Mr. McNamara: This letter responds to the letter submitted to you on May 15, 1996 by the American Radio Relay League, Inc. ("ARRL") regarding the above-referenced request for special temporary authority ("STA"). In its letter, ARRL generally supported the requested STA and, in particular, 'enthusiastically endorsed' the requested authority to use the 219-220 MHz band. The STA applicants and TAPR appreciate ARRL's support and its willingness to accommodate STA operations in the 219-220 MHz band, in order to promote the organizations' shared interest in the further development of spread spectrum technologies. ARRL, however, expressed concerns about the applicants' proposed use of other frequencies in the 6m, 2m, and 1.25m bands. While TAPR and each of the licensee-applicants shares ARRL's commitment to preventing interference to existing amateur service operations in these bands, these parties urge the Commission to grant the STA as requested, permitting operation in each of the bands originally identified. Perhaps most importantly, operation in each of these bands already is permitted pursuant to the spread spectrum STA originally granted to Mr. Robert A. Buaas in 1992. Under this STA, any amateur station joining the Buaas project may conduct experiments involving CDMA spread spectrum transmissions in each of these bands, provided only that notice of their participation is provided to the Commission. Mr. Jones and Mr. Hendricks' interest in seeking an STA separate from the Buaas STA is to permit them, and through them to permit TAPR, to conduct coordinated research evaluating the transmission, reception, and processing techniques of CDMA spread spectrum emissions. Through the efforts of its member licensees, TAPR intends to continue its leading role in developing standards for spread spectrum communications for the amateur community. This can be done most efficiently and effectively, however, only if TAPR through its licensee members is itself in a position to coordinate participation in the testing and to oversee the program, rather than having to work through the Buaas STA. Granting the STA requested by Mr. Jones and Mr. Hendricks, therefore, will enhance the development of spread spectrum standards without substantively altering the number of amateur licensees who may transmit CDMA spread spectrum emissions in the bands questioned by ARRL. As a result, a grant would not subject existing users of these bands to increased interference risks. ARRL's letter also understates the potential benefits of granting the requested authority to operate in the 6m, 2m, and 1.25m bands. Contrary to ARRL's suggestion, evaluating the proposals contained in RM-8737 is but one of TAPR and the licensee's objectives. As a result, the fact that RM-8737 does not propose to permit spread spectrum operation in each of the bands covered by the STA request does not undermine the need to conduct testing in these bands. Moreover, the fact that ARRL concluded that a general authorization for spread spectrum transmissions in these bands could result in unacceptable interference to existing users of the band, and therefore decided not to request an amendment to the Part 97 rules authorizing spread spectrum transmissions in these bands, does not mean that limited spread spectrum testing, within the constraints imposed by an STA, cannot be accommodated. More fundamentally, a great deal can be gained by permitting operation in these bands. Among other things, TAPR plans to study the strengths and weaknesses of proposed systems, a variety of potential interference issues, and the ability of spread spectrum emissions to improve spectrum efficiency. Through these efforts, TAPR and its licensee members will be able to improve the factual record for determining whether and, if so, under what conditions, spread spectrum operations could be more generally authorized under Part 97 of the Commission's rules. Due to the unique characteristics of operation in different bands, the type of broad-based study and analysis TAPR and its members contemplate can be achieved only if operation is permitted in a variety of different bands, characterized by different operating frequencies and sharing scenarios. For the reasons stated herein and in the original STA request, as amended, the STA applicants and TAPR respectfully request that the Commission grant the STA request, including authority to operate in the 6m, 2m, and 1.25m bands. Respectfully submitted, Henry Goldberg Attorney for Tucson Amateur Packet Radio Corporation 1. ARRL conditioned its support on the substitution of Commission Amateur radio licensees as the applicants and a requirement that licensed participants, with their call signs, be submitted. Both of these conditions have been satisfied. See Letter from Greg Jones and Dewayne Hendricks to Mr. William Caton, dated May 9, 1996. 2. See Letter from Ralph A. Haller to Mr. Robert A. Buaas, dated April 17, 1992 (attached) (authorizing operation in the 6m (50-54 MHz), 2m (144-148 MHz), and 1.25m (222-225 MHz) bands). This STA has been subsequently renewed by the Commission since granted in 1992. 3. Id. 4. See STA Request at 2-3.
TAPR requests status of STA(Nov 6, 1996)
PDF file of letter (10K).
November 6, 1996 By Hand Granted Mr. William Caton Robert H McNamara Acting Secretary Chief, Private Wireless Division Federal Communications Commission Wireless Telecommunications Bureau 1919 M Street, N.W. Washington, D.C. 20554 Re: Tucson Amateur Packet Radio Corporation Request for Special Temporary Authority Dear Mr. Secretary: On April 10, 1996, Greg Jones (WD5IVD) and Dewayne Hendricks (WA8DZP) (collectively, "Applicants") filed a request for Special Temporary Authority ("STA"), as amended on May 9, 1996, to allow members of the Tucson Amateur Packet Radio Corporation ("TAPR") to conduct an experimental program to test Code Division Multiple Access spread spectrum emissions. At the request of the Commission staff, we hereby supplement the April 10 STA request to provide the following information: (1) A list of the initial amateur radio stations in the experimental program is attached hereto as Exhibit A. The Applicants anticipate that additional amateur radio operators, all of whom will hold a at least a Technician Class license, will be added to the experimental program as it progresses. The Applicants will file, on a quarterly basis, the names, call signs, and addresses of any additional stations that join the experimental program. (2) In order to conduct the experimental program, the Applicants are requesting that the Commission waive the following provisions of its Rules for the stations: (a) Section 97.119(b)(5), to remove the requirement to transmit station identification signals by a CW or phone emission; (b) Section 97.305(c), to permit spread spectrum emissions on amateur radio bands 50-54 MHz, 144-148 MHz, 219-220 MHz and 222-225 MHz; (c) Section 97.311(c), to provide for transmission of hybrid spread spectrum emissions; and (d) Section 97.311(d), to permit the use of other spreading codes. (3) The Applicants request STA for a period of six months from the date of grant, renewable for additional six-month periods. (4) The Applicants expressly acknowledge that any transmissions conducted pursuant to the requested STA will be secondary in nature, and must cease immediately in the event of harmful interference. (5) The Applicants will file with the Commission a report detailing the results of the experimental program discussed in the STA request, and will make that report available to members of the public. Questions with respect to this matter should be directed to the undersigned. Respectfully submitted, Greg Jones WD5IVD (Advanced Class) cc: Mr. Robert H. McNamara
Robert J. Carpenter, W3OTC, letter regarding TAPR's STA(Nov 20th, 1996)
Robert J. Carpenter, W3OTC 12708 Circle Drive Rockville, MD 20850-3713 20 November 1996 Chairman, Federal Communications Commission, Washington, DC 20554 Dear Sir: On November 8, 1996, the Private Wireless Division of the FCC's Wireless Telecommunications Bureau modified the Special Temporary Authorization (STA) issued to Tucson Amateur Packet Radio (TAPR). I feel that these modifications, unless altered, will seriously compromise the results of any experimentation under this STA. The major thrusts of the STA modification are: a) allow Spread Spectrum (SS) transmissions on the amateur frequencies above 50 MHz, b) allow the use of any spreading sequence, c) no longer require stations using SS to identify in a manner which can be understood on conventional amateur receiving equipment. Continued is the requirement that test transmissions must be terminated if they interfere with other amateur communication. There is widespread alarm among the many users of the heavily populated amateur bands between 50 and 450 MHz that SS transmissions will seriously harm the present users. Thus it is very important that operation under the subject STA be conducted in an open manner so that all amateurs can participate and observe the results. I request that the FCC require that users of the TAPR STA post their operating log, within 24 hours of each period of SS operation, on the well-known TAPR site on the World Wide Web (www.tapr.org). The log information must include: call letters of station, location, time, frequencies employed, power, antenna, SS type, etc. This requirement would have a number of benefits: 1) without such a public record, other band occupants will have no way of identifying the source of SS transmissions, should there actually be interference, 2) it would demonstrate the technical prowess of TAPR in fielding real tests of real SS equipment, 3) without the open testing this requirement would encourage, the issue of SS in amateur radio will remain very contentious and clouded in distrust and misinformation, 4) it would demonstrate the serious and thorough nature of the tests under the STA, 5) by making the SS operation public in nearly real time, it would reduce the number of false reports of SS interference, 6) it would allow other users of the bands to correlate their observations with the SS STA users (after the fact). I request that the Commission act immediately to add the above logging and posting requirement to the TAPR STA. It would not hamper experimentation in any way. It is not onerous. TAPR already possesses all of the necessary facilities. Respectfully submitted, Robert J. Carpenter cy: Greg Jones, TAPR Paul Rinaldo, ARRL
Request for TAPR SS STA Renewal(April 28, 1997)
Request for TAPR SS STA Renewal (pdf 3.0 format, 5K)
Mr. William Caton Acting Secretary Federal Communications Commission 1919 M Street, N.W. Washington, D.C. 20554 Re: Tucson Amateur Packet Radio Corporation Request for Renewal of Special Temporary Authority Dear Mr. Secretary:
On November 6, 1996, Greg Jones (WD5IVD) and Dewayne Hendricks (WA8DZP) (collectively, "Applicants") were granted special temporary authority ("STA") for a period of six months to allow members of the Tucson Amateur Packet Radio Corporation ("TAPR") to conduct an experimental program involving the use of Code Division Multiple Access spread spectrum emissions (see attached). For your information, the attached report outlines the findings of the study complied to date.
The initial six-month period of the TAPR STA ends May 6, 1997. In accordance with the original terms of the STA, the TAPR program is on-going. consequently, the Applicants respectfully request renewal of the TAPR STA, for an additional six months period, with respect to the same set of amateur radio stations for which the original STA was granted.
Questions with respect to this matter should be directed to the undersigned.
WD5IVD (Advanced Class)
cc: David E. Horowitz
TAPR SS STA Activity Report(April 1997)
TAPR SS STA Activity Report, April 1997 (pdf 3.0 format, 418K, 75pages)
List of stations that were on the STA
The following stations were participating in the TAPR SS STA.
Thanks to these stations for participatin.
TAPR Spread Spectrum STA Authorized Stations
|Station||City, State||Date||Project||Area Coord|
|Mel Whitten, K0PFX||St Louis, MO||Nov 8, 96||Yes|
|Roy D. Welch, W0SL||Ballwin, MO||Dec 27, 96|
|Dave Salaman, N0EIR||High Ridge, MO||Jan 5, 97|
|Greg Jones, WD5IVD||Austin / Denton, TX||Nov 8, 96||900Mhz, 2.4G, Exp||Yes|
|Robert Morgan, WB5AOH||Austin, TX||Nov 8, 96||900Mhz FW, Exp||Yes|
|Jim Neely, WA5LHS||Austin, TX||Nov 8, 96|
|Ron Parsons, W5RKN||Austin, TX||Nov 8, 96|
|Robert Barron, KA5WSS||Austin, TX||Dec 27, 96|
|Brian Straup, NQ9Q||Austin, TX||Jan 5, 97||Exp|
|Univ of Texas, ARC, W5EHM||Austin, TX||Mar 10, 97|
|Bill Reed, WD0ETZ||Dallas, TX||Nov 8, 96||Exp|
|Bob Stricklin, N5BRG||Dallas, TX||Nov 8, 96||Exp|
|Tom McDermott, N5EG||Murphy, TX||Mar 10, 97||Exp|
|John Koster, W9DDD||Dallas, TX||Nov 8, 96|
|Frank Perkins, WB5IPM||Arlington, TX||Jan 5, 97||Exp|
|Gerald Knezek, KB5EWV||Denton, TX||Nov 8, 96||900Mhz TAL|
|Guy Story, KC5GOI||Denton, TX||Dec 27, 96|
|Dorothy Jones, KA5DWR||Denton, TX||Jan 5, 97||900Mhz TAL|
|Gerald Marchant, WB5NZV||Denton, TX||Jan 5, 98||900Mhz TAL|
|William Jones, KC5UYN||Denton, TX||Jan 5, 98||900Mhz TAL|
|Walter Holmes, K5WH||Houston, TX||Dec 27, 96||Yes|
|Dewayne Hendricks, WA8DZP||San Jose, CA||Nov 8, 96||900Mhz TAL||Yes|
|Robert A. Buaas, K6KGS||Huntington Beach, CA||Dec 27, 96||WL|
|Robert Lorenzini, WD6DOD||Newport Beach, CA||Jan 5, 97|
|David Wright, KD6BUY||Fountain Valley, CA||Jan 5, 97|
|Steve Dimse, K4HG||Summerland Key, FL||Dec 27, 96|
|Steve Bible, N7HPR||Kings Bay, GA||Nov 8, 96|
|John Ackermann, AG9V||Dayton, OH||Nov 8, 96||900Mhz WL||Yes|
|Fred Peerenboom, KE8TQ||Dayton, OH||Nov 8, 96||900Mhz WL|
|Greg Romaniak, N8XOS||Parma, OH||May 4, 99||900Mhz WL|
|Jeff King, WB8WKA||Farmington, MI||Nov 8, 96||900Mhz FW||Yes|
|Steve Stroh, N8GNJ||Woodinville, WA||Nov 8, 96||Yes|
|John R. (Dick) Bingham, W7WKR||Seattle, WA||Mar 10, 97||6meters Exp|
|Joe Borovetz, WA5VMS||Muskogee, OK||Nov 8, 96||Yes|
|Fred Treasure, KE5CI||Silver City, NM||Jan 5, 97||WL||Yes|
|Anthony W McConnell, N3JLI||Phoenix, MD||Mar 10, 97||Exp|
|Anthony Kapolka, III , N3XIH||Wilkes-Barre, PA||Feb 27, 98||Exp|
- 900Mhz, 2m, 219m, etc represent bands that the stations are proposing to operate within
- Exp - Station has proposed an experiment. Further information will be made available as provided by the experimenting station.
- Area Coordinators. These are volunteers who can help explain local/regional issues regarding the SS STA.
Questions concerning type of operations, intervals, and schedule should be directed at individual stations if local operators have questions. The STA holders assume that STA participants will work with local amateurs in their area if operational questions or concerns occur. Each STA station has informed TAPR as to an area of work within the STA and these areas are listed above. STA stations will notify the STA holders of any additional changes in operational freqs or scope and these changes will be reflected on this web page as updated.
The STA holders believe that the participants under the STA should be allowed to operate as necessary for their own testing and believe that each STA station fully understands the operational limitations of the STA. It is not the belief of the STA holders that participants under the STA will abuse the purpose and scope of the STA. If this is not the case, the STA holders may upon notice remove anyone from the STA who might be operating outside the limits and scope of the STA.
A formal report on operations will be compiled towards the end of the STA.
Greg Jones, WD5IVD, pending experiment using Loral based SS system. More information will be provided prior to equipment being made operational.
Bill Reed, WD0ETZ, pending experiment using Loral based SS system. More information will be provided prior to equipment being made operational.
Bob Stricklin, N5BRG, pending experiment using custom built SS technology. More information will be provided prior to equipment being made operational.
Tom McDermott, N5EG, pending experiment using custom built FHSS technology. More information will be provided prior to equipment being made operational.
Bob Morgan, WB5AOH, pending experiment using custom built SS technology. More information will be provided prior to equipment being made operational.
902-928Mhz. 1 watt output. Frequency Hopper. 15 channels. Operating modes will be in point-to-point, point-to-multipoint, and store & forward repeater. Bi-lateral amp (up to 5 watts) may be used by various stations at discretion and availability. Data rate from 1200bps to 115Kbps.
902-928Mhz. 1 watt output. Frequency Hopper. Operating modes will be in point-to-point, point-to-multipoint. Data rate 256Kbps.
902-928 MHz. 500mW and 1 watt outputs determined by unit. Direct Sequence and DQPSK modulation. 2mbps. Operating modes will be in point-to-point links over 5+km distances for testing links between packet radio switch and server sites and with point-to-multipoint operation within a 3km radius.
Brian Straup, NQ9Q, pending experiment using custom built SS technology on 218-219MHz. More information will be provided prior to equipment being made operational.
Frank Perkins, WB5IPM, pending experiment evaluating usage of DSSS transmissions in the 70 cm band based on DSP signal generation and correlation. More information will be provided prior to equipment being made operational.
Anthony W McConnell, N3JLI, pending experiment evaluating usage of FHSS for voice on 6 meters.
John R. (Dick) Bingham, W7WKR, pending experiment evaluating usage of FHSS for voice on 6 meters.
Some preliminary details are available at my website (http://radio.mathcs.wilkes.edu) . I am working in conjunction with a student, Will Stockdell KB3CBI. We plan to experiment with two configurations: a) computer control of an IC-821, changing frequency. We plan to experiment on 70cm and 2 m. The principal question is how fast we can hop using this radio. b) computer switching between multiple radios set to fixed frequencies. The intent here is to attach the radios to multiple sound cards and switch between them. The number of frequencies using this method will be low (4-8). Again, we plan to experiment on 70cm and 2m.