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EF Johnson 2634 UHF, 400-430 MHz Digital Repeater/Base Station

Used in excellent working condition. Comes with start up manual, battery back up cable, AC cord, and Key.
Price: $1,500.00 each. Plus Shipping. Buyer pays shipping. Please see Shipping Info for more details on shipping and handling.
Available units: 12 units available.

From the Manufacturer..
EFJohnson’s 2600 Series Repeater/Base Station was designed to meet the demanding needs of First Responders. This field-proven product combines performance, reliability and advanced features for worry-free operation when it is needed most. The 2600 can be configured as a repeater or as a base station in a conventional analog, Project 25 digital or mixed mode network. When operating in mixed mode, it has the ability to detect the signaling mode of an incoming call. It then returns the call back out over the air using the same protocol as was received.A wide range of receiver protection methods are available including CTCSS, CDCSS
and NAC. Up to 50 CTCSS and 18 CDCSS are provided with the community repeater option. Multiple interfaces support network communications: 4-wire analog used to connect the station to a remote controller or analog dispatch equipment, and digital Ethernet used for linking stations or linking the station to dispatch equipment using Voice over Internet Protocol (VoIP). The standalone 2600 is a feature-rich product that supports many advanced P25 features such as group calls, emergency and System All Call. But the addition of the IP25™ Network Interface Unit (NIU), a conventional “site controller”, the capability is expanded to include such features as unit and talk group validation, and cross-band and cross-mode call routing across multiple sites. Software defined configurations allow for PC programmability of operating frequency, output power and other functions – providing quick installation capability. Front panel status indicators and two-line display show operating status and provide on-site diagnostics for rapid evaluation and servicing.

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Telewave TPCD-4554 406-512 MHz Base Station Duplexer (adjustable frequency)

Used in Excellent working condition. Coax Cables included. Each Unit comes with two Transmitter cavities and two receiver Cavities
Price: $499.00 each unit. Plus Shipping. Buyer pays shipping. Please see Shipping Info for more details on shipping and handling.
Avaibale units: 13 unit available

From the Manufacturer..
The Telewave Models TPCD-4554 allow simultaneous operation of a transmitter and receiver into a common antenna. These bandpass duplexers have low insertion loss, and are ideal in frequency congested areas where protection is needed from surrounding transmitters, and where maximum transmitter sideband filtering is necessary.
Because of their superior construction, these Telewave 5” cavity duplexers achieve greater rejection of transmitter spurious and noise radiation, providing excel lent receiver protection.

The TPCD-4554 has two ¾ -wave bandpass cavities in both the transmitter and receiver sections. These duplexers are designed for transmitters and receivers with frequency spacing of 5 MHz or more. Selectivity and insertion loss may be adjusted by rotating the calibrated connector loops. (See next page for typical response curves.) Telewave duplexers have 1/4- inch aluminum top plates which are fully welded to the aluminum outer conductor. Silverplated tuners, berylium copper finger stock contactors and threaded Invar rods assure maximum temperature stability, higher “Q”, and many years of trouble free operation.

ELECTRICAL SPECIFICATIONS TPCD-4554 TPCD-4556
Tuning range 400-512 MHz
Number of cavities (4) - 5” (6) - 5”
Frequency separation (min) 5 MHz
Maximum input power 350 watts
VSWR (max) 1.5:1
Insertion loss TX / RX to ant. 1.0 dB 1.5 dB
RX isolation at TX frequency 50 dB at 5 MHz 75 dB at 5 MHz
TX noise suppression at RX frequency 52 dB at 5 MHz 75 dB at 5 MHz
Temperature range -30°C to +70°C
MECHANICAL SPECIFICATIONS
Dimensions (HWD) in. (cm)
(Tuners fully extended)
28 x 19 x 11 (74 x 48 x 28)
Connectors N or UHF female
Finish Gray acrylic enamel
Net weight lb. (kg) 19 (8.6) 27 (12.3)

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Yeasu Quadra VL-1000 Solid-state, automated 1 kW HF/6m linear amplifier. With matching VP-1000 power supply. Owner ran it 110v. Low usage. Its in very good condition. Unit is nine years old. Includes manuals. No original boxes.

Sold for: $2,650.00 Plus Shipping. Buyer pays shipping. Please see Shipping Info for more details on shipping and handling.

Specs
frequency range... 160-15m, 6m
power output... 1000 Watts
duty cycle... 100% @ 500 Watts
drive power... 50-80 Watts
spurious radiation... <-50 dB, 160-15m <-60 dB, 6m
third order IMD... <-30 dB
input voltage... 110, 220 vAC
dimensions... 5.3"H x 16.2" W x 17.3" D
weight... 46.3 pounds (VL-1000) and 33 pounds (VP-1000)
Total shipping weight for shipping calculation purposes 90 pounds.
Tuner Section: frequency range... 160-6m
impedance range... 16-100 Ohms, 160m 16-150 Ohms, 80-10m 25-100 Ohms, 6m
matching SWR... 1.5:1 or better
matching time... 10 seconds or less

SOLD

MINCO KAPTON THERMOFOIL HEATERS

Click Here to See Them and for more information

New old stock (NOS). Minco Products International Kapton Polyimide Thermofoil Heater Part #: HK6010-03B28.4 Resistance = 28.4 ohms. Peel-off self-sticking back. With a resistance of 28.4 ohms, the heater runs at 5.07 watts. Dimensions are 0.5" x 3.0"

Set of 4 Case Feet for Ham Radios

Never used feet for electronics equipment. Particularly ham (amateur) radio cases. Good replacement feet for Drake, Yaesu, Kenwood and other Brands. Sure, they could be used on stereo equipment as well. Hard molded plastic type material with glossy surface. Reminds me of Bakelite which used to be used in radio and electronics equipment hardware. It does so because it's harder than regular plastic. These feet were originally intended for use on medical electronics devices which is often heavy and subject to a lot of physical abuse, so they are sturdy. These are not salvaged from old cabinets. They have never been used and are from an old manufacturing over stock.

These feet would make great replacement feet for amateur radio equipment and / or new homebrew projects. They are of the same style (and virtually the same size) as the feet on both my Drake 4-Line transmitter and receiver and my Yaesu FT-902DM transceiver.

Measurements: 5/8" Long. 7/8" Diameter (at the top) and screw hole is about 5/32" diameter. That was as close as I could measure the screw hole. It is threaded to take a screw from the inside of the cabinet. I am not positive as to the exact size of screw needed but it is the course thread variety. NOTE: Mounting hardware not included. Price $9.95 per set of 4. S/H $4.50 Quantities are limited. Eleven sets are available, so hurry if you need feet for a radio project. You can enter the quantity of sets desired after you click on the Add to Cart button.

Alco Miniature Pushbutton Micro PC Board Mount ON/OFF Momentary Contact Switchs
Right Angle Pushbutton SPST Switch

Never used Alco TPB11 miniature micro switches. They are SPST pushbutton momentary contact ON/OFF switches. Designed for PC board mounting, the electrical contact through the PCB pins are gold plated. The PCB mounting pins are silvered. A total of four pins will hold down the switch making for a secure and rigid positioning against the circuit board. These switches are ideal for "through panel" use. Their small size allows for close spacing and inclusion in very compact circuitry housings. Rating .4 VA. Made in U.S.A. Quanties are limited so order several while they're still available. You can enter the quantity desired after you click on the Add to Cart button. Price each $2.50. S/H a flat $3.50 for any quantity.

Dimensions:
Overall length: 18 mm
Pin spacing (front/back-side/side): 5 mm
Total width: 8 mm
Thru-panel protrusion: 5 mm

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Motorola Base/Repeater FM Two Way Radio Service Manuals

I have a few Motorola service manuals available. I used these back when I was working for Motorola many years ago. These manuals are for older equipment in the Public Service / Business Band radio service and are for base station or repeater FM two way radio. All in very good condition and are intact. Contain complete servicing info for these radios including full schematics, circuit board drawings and test/calibration details. Though these particular radios are out of production and have been for a very long time I suspect that there are still some perhaps in commercial service or at least Amateur Radio service. If you have or know anyone having any of these radios, and in need of an original factory service manual, here's your chance before they're gone for good. See the manuals

HyGain TH6DXX Three Band Yagi Antenna

I am in the process of preparing my HyGain TH6DXX to be sold. I have not used it in many years and have concluded that I will not be using it in the future. I bought it new about 1977 and it was up in the air for about a year. It has been down since but for a few years it was stored outdoors. Dissembled. Now it is in my garage and mostly dissasembled. Yes, I have the original assembly instructions and manual which will be included with the sale.

I will be providing photos and more details on the condition in the coming weeks. I will list it here when an asking price has been determined. Due to the bulkiness I intend for local pick up only. It is located in the Dallas / Ft. Worth area.

In the meantime I will be happy to try to answer any questions about it. Contact Me

Philips RF Wideband Transistors

This is a package of RF wideband transistor samples from Philips Engineering. I received this package several years ago and for a while I had the intent of using some of them in experimental circuitry. I never did do anything with them and they are still in the unopened packages.

There are 24 different transistor types included in the package. Of each of the 24 types, there are 5 each for a total of 120 individual transistors. These are miniature SMD devices and suitable for high performance RF applications such as VHF/UHF high gain, small signal RF. IF and RF Amplifiers, mixers, buffers and oscillators. Some up to 200 MHz. Some to 1 GHz, 2 GHz, 3 GHz, and some to 5 GHz.

A CD (included) contains data sheets, application notes, S-parameters and SPICE models. Documents are PDF. Look at the individual pictures (click on each one for a larger view) for more details. For ham experimenters active in or interested in VHF/UHF and microwave circuit design, this should be a welcome resource.

We will accept personal checks and money orders but please note that orders will not be processed until the check has cleared with the bank. A bank money order will be handled just like a check with a clearance period required. Postal money orders will be processed imediately. Orders to be paid for by check or money order must be placed by regular postal mail. Include items to be ordered by Item number and quantity desired. Also include full shipping address including zip code and telephone number.