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The Urban DX’er

The Urban DX’er is published

monthly through the

cooperative efforts of Bob

Kozlarek, WA2SQQ and

Charlie Hargrove, N2NOV

Any information contained is

considered public and can be

copied, distributed or

otherwise electronically

distributed provided that

proper credit is given..

Contributions of information

for future issues is always

welcomed and greatly

appreciated. Please send your

E mail to wa2sqq@hili.com..

6&$11(56

+-( 3^(

6+257:$9(

9RO1R (VWDEOLVKHG

2FWREHUHU

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Kiwa now has the PRM or Pocket Regeneration

Module available for the Pocket Loop Antenna. The

PRM is an accessory for the Pocket Loop providing

regeneration from 530 kHz to >10 MHz. The

specification to 10 MHz is using the antenna coupler

slipped over the whip antenna. Regeneration to 17

MHz is possible using a direct cable connection to

the receiver.

Regeneration is an advanced feature of loop

antennas. As the regeneration is increased, the

bandwidth decreases and the receive gain

increases. An additional 18 to 24 dB gain can be

realized with no change in battery current. The

additional gain is helpful under weak signal

conditions. The improvement is selectivity is helpful

if adjacent frequency interference exists.

The PRM is a module that is physically attached to

the front vertical surface of the Pocket Loop. It is

installed between the Pocket Loop output and the

coupler or between the Pocket Loop and radio if a

direct cable connection is used.

Four controls operate the PRM:

Regeneration ON/OFF, High/Low Frequency switch.

Coarse Regeneration Tune, Fine Regeneration Tune

PRM - Pocket

Regeneration Module

price is $48.00 (US)

Shipping and Handling

in North America is $4

Shipping and Handling

outside North America is

$7 We also have a 9

VDC (120 VAC) adaptor

for the Pocket Loop

Antenna. The price is

$10 plus $2 S&H in

North America

DX from your car radio

using the Pocket Loop

Car Radio Coupler! Kiwa

also has a new coupler

for the Pocket Loop that

connects between the car radio and car antenna.

The coupler allows the

Pocket Loop to enhance weak signal reception. We

supply a 6 ft cable with the coupler so the Pocket

Loop can be placed on the dash or on top of the car

(not recommended while driving!). The coupler uses

standard (for most car radios) Motorola connectors.

It also includes a switch to bypass the coupler for FM

reception. Signals that aren’t even heard using the

car radio antenna will "jump out" using the Pocket

Loop and PRM! Pocket Loop Car Radio Coupler

price $35.00 Shipping and Handling for North

America $4 Shipping and Handling outside North

America $7

For more information contact Kiwa at:

kiwa@wolfenet.com or http://www.wolfe.net/~kiwa

Sales Orders: 1-800-398-1146

Technical Information 509-453-5492

Kiwa Electronics

612 South 14th Ave.

Yakima WA 98902 USA

++++%)

Once upon a time you could hear an AM broadcast

station and consider it a sure bet that a reception

would bring a QSL card. That was than and this is

today - a time of budget cuts and stations that lease

engineers. I though it might make for an interesting

article to outline the procedure for submitting a

reception report and discuss some tips for increasing

your chances to get that coveted QSL card.

The Basic Report

While styles vary, I’ve had good results formatting

my reports in the form of a personal letter. The letter

should contain the following information, not

necessarily in this order.

1. Date and time of reception. (Local time and

“Zulu”)

2. Frequency you received them on.

3. Specific details that should include names of local

Summary of content (13 pages)

PAGE 1
6 & $ 1 1 ( 5 6 6+257:$9( + -( 3^ ( 9RO 1R 2FWREHUHU (VWDEOLVKHG 1 !- ) 1 !!# + Kiwa now has the PRM or Pocket Regeneration Module available for the Pocket Loop Antenna. The PRM is an accessory for the Pocket Loop providing regeneration from 530 kHz to >10 MHz. The specification to 10 MHz is using the antenna coupler slipped over the whip antenna. Regeneration to 17 MHz is possible using a direct cable connection to the receiver.
PAGE 2
P 2FWREHU 7KH 8UEDQ ';·HU can be directed to that person to increase your chances of getting a reply! The NRC also publishes their AM Radio Log that lists all US and Canadian stations. The publication which is distributed as loose pages sorts by frequency and call letters. Station formats and other details are included, facts that can help you identify those weak stations. This is a great source for the exact station address.
PAGE 3
P 2FWREHU 7KH 8UEDQ ';·HU aren’t so rare, but many of them were among the first I received almost 30 years ago! Most recently, I received a QSL from RCN in Bogota, Colombia. RCN is on 770 khz and not normally able to be received. WABC’s chief engineer alerted me to the fact that they would be off the air and I caught them while WABC was silent.
PAGE 4
P 2FWREHU 7KH 8UEDQ ';·HU Depending on the position of the receivers internal antenna, one method may perform better than others. When is the best time to listen? Propagation on the AM broadcast band is very similar to 160M. By the calendar, the winter months from December through February are by far the best as atmospheric noise will be very low.
PAGE 5
P 2FWREHU 700 740 750 760 780 800 800 810 830 840 850 870 900 1000 1020 1020 1040 1080 1090 1100 1110 WLW CBL WSB WJR WBBM CKLW PJB WGY WCCO WHAS WHDH WWL CHML WLUP KDKA * CCR WHO WTIC WBAL WWWE WBT CKTY 1160 WJJD 1500 WTOP 7KH 8UEDQ ';·HU Cincinnati, OH Toronto, Canada Atlanta, GA Detroit, MI Chicago, IL Windsor, Ontario (Talk Format) Bonaire, Netherlands Antilles (Religious Format) Schenectady, NY Minneapolis, MN Louisville, KY Boston, MA New Orleans, LA Hamilton, Ontario Chicago, IL (ex WCCO)
PAGE 6
P 2FWREHU AR-3000 MC-3357P AR-800 MC-3361NIC-200 AR-900 MC-3361N AR-950 MC-3361N AR-8000 NFM TK10489M or-85M U1 AR-8000 WFM/AM TA7792F BC-100XL MC-3359P IC-1 BC-100XLT TK-10421M-2 BC-140XLT MC-3359P IC-1 BC-200XLT TK-10421M-2 BC-205XLT TK-10421M-2 BC-250 ? BC-2500XLT TK-10930VTL BC-3000 NFM/AM TK-10930V BC-3000 WFM TK-10489M BC-350A NJM-3359D-A BC-400XLT NJM-3359D-A BC-560XLT NJM-3359D-A BC-700A NJM-3359D-A BC-760XLT NJM-3359D-A BC-800XLT MC-3359P IC-1 BC-8500XLT MC-3361BP BC-855XLT TK-10421M-2 BC-
PAGE 7
P 2FWREHU PRO-36 TK-10420 IC-101 16 13 PRO-37 TK-10420 IC-101 16 13 PRO-38 MC-3359P IC-1 18 15 10 PRO-39 MC-3361NIC-201 16 13 9 PRO-41 MC-3359P IC-1 18 15 10 PRO-42 MC-3361NIC-2 16 13 9 PRO-43 TK-10427/-10420 IC-301 16 13 PRO-44 MC-3361NIC-201 16 13 9 PRO-46 TK-10421M-3LT IC-401 20 16 PRO-51 MC-3361BD IC-1 16 13 PRO-60 ? IC-301 16 13 Icom R-1 NFM TK-10487 DET-A IC-1 20 Q1 Icom R-1 WFM TA-7787AF DET-B IC-1 16 7 Icom R7100 Said to be "top of R230 on the top of main PCB" * R-1600 NJM-3359D-A IC-2 18 1
PAGE 8
P 2FWREHU 7KH 8UEDQ ';·HU the deal: Even though all NFM discriminator chips have a SCAN CONTROL pin, Uniden doesn’t always use it! Some Uniden scanners have a separate Squelch circuit with the SCAN CONTROL pin on the discriminator unused! You have to find the real Squelch circuit, and then determine the Logic for that circuit. It’s easy, but differs from one scanner to the next, and I can’t cover them all. I need your help. See Table 2 below for a good reference.
PAGE 9
P 2FWREHU 7KH 8UEDQ ';·HU computers with this hobby seemed only natural. And the latest milestone was the introduction of devices which allowed me to connect my computer to my scanner. Not only could I link the data in the computer to my scanner, I could now do things the scanner’s processor was incapable of. Early products to computerized scanning were somewhat primitive but welcome nonetheless. Most of the function was to extend the keyboard functions of the scanner to the computer.
PAGE 10
P 2FWREHU 7KH 8UEDQ ';·HU of some of the primary objectives: The first objective was to take full advantage of the capabilities of the OptoScan. That would seem only natural, but because of the uniqueness of the OptoScan interface, it meant the market for Probe would be limited to OptoScan users making it difficult to recover development costs. To overcome this hurdle, and to keep the price of Probe competitive, a different marketing strategy was developed.
PAGE 11
P 2FWREHU 7KH 8UEDQ ';·HU only bank scanned (exclusive mode), or is added to current banks scanned (non-exclusive mode). The length of dwell time spent in either mode can be tailored to your own situation. If activity is detected within the SmartBank of frequencies during the dwell time, the dwell timer is reset so you can continue to monitor the action. For example, you can designate the air emergency frequency 121.5000 as a key frequency.
PAGE 12
P 2FWREHU 7KH 8UEDQ ';·HU Orders must be postmarked by November 22nd, 1997. MC / Visa / check / money orders accepted. Orders can be sent to DataFile, Inc., PO Box 20111, St. Louis, MO, 63123. Additional information and / or questions regarding Probe can also be directed to DataFile via email at DataFiles@aol.com. There is a web page which has information, screen shots, frequency files and additional documentation provided by a Probe user, Steve Hancock, on his web page at http://home.ptd.
PAGE 13
P 2FWREHU 7KH 8UEDQ ';·HU product; not a glitzy graphics program loaded with numerous windows and buttons, which in my terms, get in the way of what we’re functionally trying to provide. It’s meant to be run on the older computers dedicated to the scanner as many of us addicts have done.