Meeting
Notice
By Scott Nolte, N6CUV
The
next regular Club meeting
will be held April 9, 1997, in building 238, room 543 at Noon.
Topics and Speakers wanted for JPLARC meetings: If you have a
idea for a topic or a speaker for a club meeting contact Scott
Nolte at 354-9724 or scott.nolte@jpl.nasa.gov
Club Board of Directors meetings
are held at noon on the fourth Wednesday of each month in 301-227.
Everyone is welcome at all club meetings; bring your lunch. n
President's
Message
By Randy Hammock, KC6HUR
I have some good news! Back in
January, the W6VIO repeater took a lightning hit, which put the
2-Meter repeater out of commission. Several weeks ago, Bob Dengler,
NO6B, repaired the repeater radio package, which only suffered
minor damage. But when it was put back in service, it was discovered
that the radio port card in the RLC-3 had suffered a small amount
of damage. Until that can be repaired, we are using one of the
spare radio port cards. The next problem discovered was that
there was severe desense. Jan Tarsala, WB6VRN, traced this to
one of the cans in the receive leg of the duplexer. The cost
to replace this damaged can is about $375.
On the HF front, the Sommers
antenna took a real beating in the winds storms and the decision
was made to replace it and a new antenna was ordered. When it
came time to start preparations for installing the new antenna,
it was discovered that the pole on which the antenna is mounted
is in very bad condition. Bob Polansky, N6ET, put together a
plan [see page 3] to install a new tower to hold the new antenna.
The cost for this work is about $2700.
So, you may be asking, where
is the good news? Two special requests for funding were made
to the ERC and both were approved. Let's all show our appreciation
to the ERC for supporting our emergency communications efforts.
On another front, things seem
to be moving along for Field Day. As of this writing, Bob Polansky,
N6ET, and Jay Holladay, W6EJJ will be co-chairing this event.
Manny Caldera has volunteered to be our cook along with the help
of Richard Schick.
Finally, I inadvertently omitted
a couple of names of club members who helped out on the LA Marathon,
Chris, KF6HZE, and Carol Bruegge, KE6SRN, who both worked with
the wheelchair pickup vehicle. This was Chris' first public service
event as a ham and he was pretty jazzed about it. I hope he continues
with such enthusiasm.
Until next month, 73! n
March
Club Meetings
By Chris Zygielbaum, N6WEI
and Walt Diem, WA6PEA
General Meeting
The March General Meeting was
held on Wednesday March 12, 1997. Randy Hammock (KC6HUR) called
the meeting to order. Because of an expected long program, Randy
dispensed with the normal reports.
Vice President Scott Nolte (N6CUV)
introduced Robert Buaas (K6KGS) who spoke about Spread Spectrum
in amateur radio. Robert is a member of the Amateur Radio Research
and Development Corporation (AMRAD) in Washington DC. He has
been involved in Spread Spectrum for about 15 years, both in
the technology and the politics.
Robert wanted to focus on the
interesting aspects of the politics in spread spectrum, but spent
quite a bit of time defining and contrasting two types of spread
spectrum, direct signal and frequency hopping. He diagrammed
a spread spectrum generator and receiver and explained the inherent
problems and complexities of the signal synchronization. Information
about Spread Spectrum in general and a proposal to change the
spread spectrum rules (NPRM 97-10) is available at URL: http://www.tapr.org/ss.
Board of Directors Meeting
The JPL ARC Board of Directors
meeting was held on Wednesday, March 26, 1997 and chaired by
President Randy Hammock (KC6HUR).
Bob Polansky (N6ET) presented
a detailed plan to re-establish the HF capability lost due to
high winds. He reported that the tower on which the wind damaged
Sommers antenna resides is deemed unsafe for continued use in
supporting a large multiband beam antenna. Bob proposed procuring
and installing a new Rohn guyed tower about 150 feet west of
the current Sommers site. He also proposed that the current Sommers
tower be extended by 25 or 30 feet to support 40 and 80-meter
delta loop antennas and a 160-meter inverted vee. Bob reported
that the stainless steel tower, sitting in pieces next to the
trailer, is not tall enough and would require too much retrofitting
to use for a multiband HF antenna. He proposed using that tower
to support the satellite antenna, which was also blown down by
the high winds.
Jay Holladay (W6EJJ) agreed to
prepare a request to ERC for a grant to cover the cost of the
tower. Jan Tarsala (WB6VRN) made a motion, seconded by Walt Mushagian
(K6DNS), that Polansky be authorized to proceed with the proposed
plan to refurbish the club's HF capability within the 1997 JPL
ARC HF budget allocations and any obtained ERC grant.
Jan Tarsala (WB6VRN) reported
on lightning damage to the 2-meter repeater and a cavity of the
2-meter duplexer. Jan indicated that we need to purchase a replacement
cavity and requested authorization to submit a grant request
to ERC. Jay Holladay (W6EJJ) made a motion, seconded by Walt
Mushagian (K6DNS), that Jan request a grant from ERC for a replacement
cavity.
Chris Carson (KE6ABQ) discussed
the need for grounding at Bldg. 35 for lightning protection.
He has made a request to lab communications to install grounding
rods and an entry grounding plate to enable grounding all transmission
lines at the entrance to the building.
Walt Diem (WA6PEA) distributed
a copy of the club's lightning protector inventory which includes
Tx and Rx lightning protectors suitable for the 450 MHz repeater,
eliminating the need to expend the $125 allocated in the 1997
W6VIO/R budget. He also pointed out that the lightning protectors
allocated for the Packet and HF Stations have not yet been installed.
Walt Mushagian (K6DNS) reported
that a surplus 8' x 12' solar array is available for use by the
club for an indefinite period. Places that it might be used were
discussed but not resolved.
In attendance were Hammock, Holladay,
Nolte, Mushagian, Tarsala, Diem, Rick McKinney, Carson, Dengler,
Person, and Norris. n
DX News
By Bob Polansky, N6ET
No preamble this time. Just a
short list of what's coming in DX.
CAMBODIA - XU6WV has been active
on 80, 40, 30, and 20meter phone and CW. He was quite loud on
30 CW a few days ago. The best part is that he has a quick-acting
W0 QSL manager.
EAST MALAYSIA - 9M6TCR and 9M6TPR
will be active from Spratley and Borneo through 4 April. They
were easily copyable on 30 meters at local midnight, but the
JA's were much louder than the W's calling. (I didn't make it!)
FAROE ISLANDS - OY/Many DL calls
plan a major activity on 160 through 10 meters from 7 to 20 June.
Look for lots of QRM!
GUERNSEY - Depending on when
this issue publishes, you may still have a shot at GU0/W7MAE.
He plans operation from 20 through 10 meters including the WARC
bands. The operations terminate on 5 April.
MALI - TZ6VV continues to be
active on 20 meters. A number of new hams have been recently
licensed. Look for much more activity from TZ-land.
ZAIRE - 9Q5BQ is active from
here for the next 2 months, primarily on 20 CW. Other band activity
is planned.
That's all for now. Keep the
faith! Sunspots will return. n
W6VIO HF Capability
Status
By Bob, N6ET
I am pleased to report that the
Club has taken possession of a new TS-850 transceiver. We traded
the archaic pieces of radio equipment in the basement of B171
for this new acquisition after taking only two and one-half years
to arrange the deal.
On a not so pleasant note, significant
work is needed to restore the W6VIO HF capability to an acceptable
state after the pounding it took during the recent hurricane-force
winds. The tower on which the Sommers antenna resides is unsafe
for continued use in supporting a large multiband beam antenna.
I propose that a new guyed Rohn tower be procured and installed
about 150 feet west of the current Sommers site. I further propose
that the current Sommers tower be extended by 25 or 30 feet with
a simple pole and pulley arrangement that would permit it to
support 40 and 80-meter delta loop antennas and a 160-meter inverted
vee. The tower currently sitting in pieces next to our storage
trailer can be used to support our satellite antenna next to
our ops trailer according to Chris Carson.
It is necessary that we move
quickly on gaining the needed approvals to undertake this work.
The Facility Division folks that can do some of the needed work
for free are being outsourced later this year. We will have to
pay to have the work done after they leave. The plan outlined
next shows the steps needed to make this happen along with all
the other restoration work needed. Order of magnitude estimates
for the procurables needed are shown as well as gross estimates
on when the work can be accomplished.
The Club Board has approved the
following proposal subject to getting the needed $2000 of additional
funds needed to do the renovation. Our fiscal needs were presented
to the ERC the last week in March. They have agreed to provide
the JPL ARC with the $2000 needed to complete the above work,
given that we put up the $700 needed from existing Club revenues.
We have the resources needed to keep our part of the deal. The
above plan will be minimally modified and work started immediately
to reestablish our HF antenna systems. All we need now is lots
of member participation during the work parties to be conducted
between now and the end of November to make this all happen.
Our first work party is scheduled
for 12 April from 9AM to noon. Please let me know by Email or
Voicemail (x44940) if I can depend on your support. n
HF Restoration Project
|
Task: |
Estimated Cost |
Completion |
|
Install TS850, interface to Dentron |
|
March |
|
Move FT757 to Video station site |
|
March |
|
Fix Sommers tower pulley assembly |
|
April |
|
Fix inverted vee and feedline |
|
April |
|
Fix hardline leak, pressurize |
|
April |
|
Extend to inverted vee |
|
April |
|
Recondition Collins, Raycal gear |
$10 |
April |
|
Take auction inventory |
|
April |
|
Set minimum bids for each item |
|
April |
|
Conduct auction |
|
May |
|
Build A3WS WARC antenna |
|
May |
|
Install on lower tower |
$20 |
May |
|
Prepare for new tower |
|
|
|
Negotiate site w/JPL |
|
April |
|
Procure tower hw, guy anchors |
$1800 |
April |
|
Locate holes |
|
May |
|
Facility digs |
|
May |
|
Install base, 1ast tower section, (temp vertical) |
|
May |
|
Facility installs guy anchors, pours cement |
|
May |
|
Procure guy wire, turnbuckles |
$200 |
July |
|
Add tower sections, guy wires |
|
July |
|
Install 1kw remote antenna switch |
|
|
|
Procure antenna switch |
$120 |
April |
|
Locate hilltop site for switch |
|
April |
|
Buy five foot wooden 4x4 |
$10 |
April |
|
Dig hole |
|
May |
|
Set 4x4 post in cement |
|
May |
|
Mount antenna switch to post |
|
May |
|
TH7DXX (backup) |
|
|
|
80meter loop |
|
|
|
40meter loop |
|
|
|
160 meter inverted vee |
|
|
|
Spare |
|
|
|
Field Day preparation/conduct |
|
June |
|
Strenghten TH7DXX |
$50) |
July |
|
Remove, scrap Sommers antenna |
|
July |
|
Move TH7DXX to new tower |
|
|
|
Buy rotor cable extension |
$80 |
July |
|
Buy low-loss coax extension |
$100 |
July |
|
Extend rotor cable |
|
August |
|
Drill rotor plate for our rotor |
|
August |
|
Move rotor to new tower |
|
September |
|
Install TH7DXX on new tower |
|
September |
|
Retrofit Sommers tower for wire antennas |
|
|
|
Buy 30 foot tower extension) |
($100 |
September |
|
Buy pulley, rope |
($70) |
September |
|
Install tower, pulley, rope |
|
October |
|
Buy antenna wire |
($20) |
October |
|
Construct 80 meter loop antenna |
|
October |
|
Construct 40 meter loop antenna |
|
October |
|
Install loop antennas on tower pulley |
|
October |
|
Install new satellite tower |
|
|
|
Purchase brackets, mounting hw |
($20) |
November |
|
Install |
|
November |
|
Install 160 meter inverted vee |
|
November |
|
Contingency |
$100 |
|
|
Total |
$2700 |
|
Classified Section
Wanted:
A 50-to-80-foot self supporting/telescoping/tilt-over
tower or towers. Can be either tubular or triangular. Need to
be in good condition. Motorized would be a big plus. Will pay
for packaging and shipping to Prescott, Arizona. Contact Brian
(KW6J) at 714-896-3514 (M-F, 8 AM to 4 PM) or via Internet at
stapleton@apt.mdc.com.
New or used (but in good condition)
HF large mono-band beams which were designed for high gain/good
front to back ratio/good directivity etc. Contact Brian (KW6J)
at 714-896-3514 (M-F 8 AM to 4 PM) or via Internet at stapleton@apt.mdc.com.
Icom IC-04AT 440 MHz HT. Call
Joel Mosher KB6RXE at 818-791-1779 or email to jam@alps.jpl.nasa.gov
US Tower (or Wilson) ROTATING
BASE and RAISING FIXTURE for a 40 foot tubular telescoping tower.
US Tower part number for the rotating base is MARB/40 and for
the raising fixture is MAF-40. Please contact Brian Stapleton
(KW6J) at 714-896-3514, M-F 8 AM - 4 PM.
Your want ad or article for inclusion
in a future issue of W6VIO Calling. Submit either to Bill Wood,
Mail Stop DSCC-33; or via Internet (bill.wood@jpl.nasa.gov)
For Sale:
Video study course, ARRL Advanced
Class includes computerized exam review software. Complete course
for $50 (new cost $129). Call Bob Dye, KQ6GD, 818-249-0171
Only $4,500 for a US Tower Model
HDX-589-MDPL 89-foot self supporting triangular tower with heavy
duty motor, pull downs, and limit switches (original cost, over
$8,100!). Tower is in great condition and is only a few years
old. Contact Brian (KW6J) for further details (work number M-F,
8 AM to 4 PM, 714-896-3514). n
ARRL News
Via the ARRL www Home
Page
Phase 3D
Launch Put Off Until September
ARRL Letter Online, Volume
16, Number 13
Modifications to the Ariane 5
rocket's electrical systems and software will mean another costly
delay for the Phase 3D Amateur Radio satellite. The European
Space Agency (ESA) announced March 24, that the Ariane 502 which
will carry Phase 3D aloft from Kourou, French Guyana, has been
rescheduled for a mid-September launch. ESA said the schedule
change was in response to recommendations of a board of inquiry
that looked into the causes for the failure of the Ariane 501
launch last year.
"This additional action,
which does not call into question the design of the launcher
nor its flight readiness, is intended to improve its robustness,
increase the operational margins and allow for degraded operating
modes," an ESA press release said.
In a joint statement a day after
the ESA announcement, Phase 3D Project Leader and AMSAT-DL (Germany)
President Karl Meinzer, DJ4ZC, and AMSAT-NA President Bill Tynan,
W3XO, expressed continuing confidence that ESA and CNES (the
French Space Agency managing the Ariane 5 program) will succeed
in completing all the tasks necessary for a successful flight
test of Ariane 502. "Naturally, we are disappointed that
our launch will not be as soon as we had hoped," said Meinzer.
"However, I am pleased that ESA and CNES are taking care
to improve the operational margins for the Ariane 5 booster.
This action helps give us renewed confidence in the overall probability
for a successful launch of our satellite."
Tynan said a complete analysis
had not yet been done but that he believed the delay would add
"on the order of $100,000" to Phase 3D's cost. That's
on top of an estimated $200,000 combined funding shortfall that
AMSAT-NA and AMSAT-DL were reporting in late February. So far,
AMSAT-DL has invested nearly $1.6 million in Phase 3D, compared
to nearly $1.4 million for AMSAT-NA.
Phase 3D fund-raising efforts
will continue. "Every month adds costs," Tynan concluded.
"This shortfall can only increase now as a result of this
latest schedule change." Both AMSAT leaders urged everyone
to continue doing as much as possible to insure the needed funds
will be in place for the completion and launch of Phase 3D in
September.
Earlier this year, the Japanese
AMSAT group, JAMSAT, helped bridge the funding gap by transferring
$50,000 to AMSAT-NA. The money represented excess donations from
JAMSAT members for the Phase 3D SCOPE camera. The completed SCOPE
camera, designed and built entirely by JAMSAT, has been installed
and successfully powered up at the Phase 3D Integration Laboratory
in Orlando, Florida, where preparation and testing continue.
Tynan emphasized that the Phase
3D team plans to take maximum advantage of the schedule change
to perform additional testing. "It's not time being wasted,"
Tynan said, adding that the Phase 3D team "will use the
delay to be even more sure about the spacecraft's readiness."
Prior to announcement of the
latest delay, AMSAT-NA Vice President Keith Baker, KB1SF, had
been reporting that AMSAT was racing to meet the early July launch
schedule and that work on the satellite was moving along swiftly.
A series of pictures of Phase
3D work in progress is available via the AMSAT-NA Web site at
http://www.amsat.org. Depending on its workload, the integration
team hopes to be able to update these photos as work progresses.
n
Radio
Amateur Callbook Goes CD-ROM Only
ARRL Letter Online, Volume
16, Number 12
It's the end of an era for The
Radio Amateur Callbook. Publisher Bob Hughes announced March
17 in a letter to Callbook distributors that the company is phasing
out its telephone-book-size paper North American and international
editions in favor of its CD-ROM product. The 1997 Callbook--the
75th edition--will be the last hard-copy version available. The
letter cited "rising costs and increasing demand for electronic
publishing" as the reasons for the company's decision to
concentrate on the CD-ROM version, which includes worldwide listings.
North American and international editions of the paper Callbook,
a staple for years in many active ham shacks, sell for around
$40, while the CD-ROM sells for around $50. The Callbook began
publishing in 1920. Radio Amateur Callbook is produced by Watson-Guptill
Publications.
The spring CD-ROM edition of
the Callbook will be available at the Dayton Hamfest, Hughes'
told distributors.
According to Hughes' letter,
the company has "a limited supply of the printed edition"
and anticipates that demand will be great once the word gets
out. The last printed version will carry a label indicating "Last
Edition of the Callbook." (For orders, call 800-278-8477;
e-mail 103424.2142@compuserve.com. n
Eimac Sells
Glass-Tube Division
ARRL Letter Online, Volume
16, Number 12
Eimac is out of the glass-tube
business. The former Eimac glass-tube manufacturing facility
has been sold and relocated from Salt Lake City, Utah, to Easton,
Pennsylvania. The new company, Triton, moved the former Eimac
plant "lock, stock and barrel" from Utah to Pennsylvania,
said Mark Hoffman, a senior scientist at Triton. In all, it took
16 tractor-trailer loads to move the plant's manufacturing equipment
and inventories across the country. For now, Triton is manufacturing
46 different Eimac and Westinghouse tube types, including the
popular 3-500Z, 4-400A and 4-400C. Right now, Triton does not
make the 6146, 572B, 811A or 4-1000A, but Hoffman did not rule
out the possibility that the company may tool up to manufacture
those tubes in the future. Triton also makes glass tube chimneys
and sockets.
Hams interested in obtaining
small quantities of Triton tubes should contact the company's
distributor, Richardson Electronics, Lafox, Illinois; tel. 800-323-1770.
Eimac--recently purchased by
an investment group, Communications and Power Industries--continues
to make and rebuild ceramic external-anode tubes. It has been
relocated to Palo Alto, California. n
Solar Update:
Looking Up?
ARRL Letter Online, Volume
16, Number 12
Sun watcher Tad Cook, KT7H, Seattle,
Washington, reports: The biggest news this week is that we are
at the equinox, and hours of daylight are about equal between
the northern and southern hemispheres. Look for improved worldwide
conditions on HF bands as we head into spring. Otherwise, there
has been no improvement in solar activity, with conditions last
week showing no significant change over the previous week. Solar
flux and sunspot numbers were only slightly higher, and on four
days the solar flux was just slightly above the average of 75
for the previous 90 days.
The outlook for the next few
weeks has solar flux remaining in the mid-70s, with a rise in
geomagnetic disturbances centered around March 26 and 27. The
March 1997 issue of the magazine Scientific American has a remarkable
article about the Solar and Heliospheric Observatory (SOHO),
which is held in the point where the Earth's and Sun's gravitational
pulls are equal, some 1 million miles toward the Sun from Earth.
There is an extensive gallery of images from the data transmitted
from the satellite on the Web at http://sohowww.nascom.nasa.gov.
Sunspot numbers for March 13
through 19 were 18, 43, 42, 25, 15, 24 and 0, respectively, with
a mean of 23.9. The 10.7-cm flux was 74.1, 75.5, 75.8, 75.7,
75.1, 74.3 and 73.7, respectively, with a mean of 74.9. Estimated
planetary A indices for the same period were 7, 4, 6, 8, 5, 6,
and 4, respectively, with a mean of 5.7. n
Upcoming VEC
Examinations
The following test session information
is provided by the ARRL/VEC for the upcoming two month period.
For further information, please call the test session contact
person at the telephone number listed. If necessary, you may
contact the ARRL/VEC at 860-594-0300 for additional information.
Electronic mail may be forwarded to the ARRL/VEC via USENET at
"vec@arrl.org" or via MCI Mail to MCI ID: 653-2312
or 215-5052.
Although the test session information
presented here does not indicate whether walk-ins are accepted
or not, most test sessions do allow walk-ins. We encourage you,
however, to always call the contact person at the telephone number
provided so that the VE Team is aware that you be attending the
test
04/04/97, Los Angeles, Ali Hassan, 213-758-6343
04/05/97, Los Angeles, Ali Hassan, 213-758-6343
04/05/97, Northridge, Arthur Goltz, 909-780-5443
04/05/97, Riverside, Charles Peck, 909-780-2680
04/12/97, Culver City, Clive Morel, 310-827-2538
04/12/97, Fontana, Louis Johnson, 909-823-6818
04/12/97, Glendora, Perry Stevens AC6UJ, 818-966-8549
04/12/97, San Pedro, Elvin Lytle, 310-325-2965
04/12/97, Joe Lamphen WB6MYD, 310-328-0817
04/19/97, Downey, Wesley Printz, 310-923-5598
04/19/97, San Bernardino, John P Mc Cann, 909-864-2656
04/24/97, Colton, Harold Heydenfeldt, 909-825-7136
04/26/97, Culver City, Scott V Swanson, 310-459-0337
04/26/97, Pomona, Donald Warburg WA6HNC, 909-949-0059
04/30/97, Anaheim, Bob Wallar, 310-429-8275
05/03/97, Anza, Garland V Moore WB6NSX 909-763-4447
05/03/97, Hesperia, James McRae, 760-244-1396
05/03/97, Los Angeles, Ali Hassan, 213-758-6343
05/03/97, Northridge,Arthur Goltz, 909-780-5443
05/04/97, Thousand Oaks, Marco Treganza, 805-375-1385
05/10/97, Culver City, Clive Morel 310-827-2538
05/10/97, Cypress, Harrison Spain AC6TI, 714-952-6114
05/10/97, Fontana, Louis Johnson, 909-823-6818
05/10/97, Glendora, Perry Stevens AC6UJ, 818-966-8549
05/10/97, Austin Rudnicki K6IA, 805-967-3024
05/10/97, San Pedro, Elvin Lytle, 310-325-2965
05/12/97, Lancaster, Adrienne Sherwood WA6YEO, 805-948-1865
05/17/97, Big Bear Lake, Howard Wilson, 909-866-8944
05/17/97, San Bernardino, John P Mc Cann, 909-864-2656
05/17/97, Santa Clarita, Irene Oseas, 805-252-7459
05/17/97, Signal Hill, Don Boyce NN6Q, 310-420-9480 n
FCC Call Sign Update
The following is a list of the
FCC's most recently issued call signs as of February 3, 1997.
|
District |
Group A, Extra |
Group B, Advanced |
Group C, Tech/Gen |
Group D, Novice |
|
0 |
AB0EI |
KI0GY |
++ |
KB0ZWT |
|
1 |
AA1RU |
KE1HG |
N1YQP |
KB1CCJ |
|
2 |
AB2DG |
KG2KE |
++ |
KC2BAN |
|
3 |
AA3PL |
KE3YZ |
N3YUG |
KB3BSG |
|
4 |
AF4BD |
KU4DB |
++ |
KF4PMR |
|
5 |
AC5LO |
KM5H |
I++ |
KC5ZFU |
|
6 |
AD6AM |
KQ6NI |
++ |
KF6JHJ |
|
7 |
AB7UH |
KK7FU |
++ |
KC7UWP |
|
8 |
AA8ZJ |
KI8BE |
++ |
KC8GGT |
|
9 |
AA9TZ |
KG9JO |
++ |
KB9PSB |
|
N Mariana Islands |
NH0A |
AH0AX |
KH0GF |
WH0ABG |
|
Guam |
# |
AH2DC |
KH2RM |
WH2ANT |
|
Hawaii |
AH7Q |
AH6PA |
KH7CS |
WH6DDQ |
|
American Samoa |
AH8O |
AH8AH |
KH8DH |
WH8ABF |
|
Alaska |
AL0D |
AL7QT |
KL0EC |
WL7CUC |
|
Virgin Islands |
WP2Y |
KP2CJ |
NP2JP |
WP2AIH |
|
Puerto Rico |
NP3B |
KP3AQ |
NP3KP |
WP4NMY |
# New prefixes are available,
but none have been issued.
++All call signs in this group have been issued in this area.
n
Go
back to the W6VIO Calling
Index.
