Frog 1.8W suite CW receiving and transmitting mechanical electrical reporting machine short wave radio 7.023MHz | Обустройство дома

Frog 1.8W suite CW receiving and transmitting mechanical electrical reporting machine short wave radio 7.023MHz | Обустройство дома

The original design of "frog sound" comes from the famous NoCal QRP club in the United States.Forty-9er"Kit" has been localized by domestic enthusiasts. This machine has a large number of users, and our shop has been tracking and improving continuously.

New "new"croaking of frogs"Suite is a large number of experiments and tests by our shop and many customersPost - launchedUpgrade versionOverall performance transcends"croaking of frogs"Various versions of the index, ownedThe following features:

1. This is the presentmaximum powerCroaking of frogs, whose rated output has been increased to1.8W(D882Output)At the same time, the power output of the suite is adoptedAmerican magnetic ringSo that "croaking of frogs" has a strong ability of remote communication, and enhances the practicability of "croaking of frogs".

2. IncreaseSide sound (SIDE TONE)CircuitIn this way, when you operate the "croaking of frogs" launch, the headset can also monitor the signal to be sent, and the new side tone Circuit is adopted.Audio sine wave generatorThe comfortable side tone and the sense of hearing are much better than that of the ordinary croaking of frogs using 74HC00.Square wave generatorEffect.

3.Kits PCB boardStandard aluminum profile housing that can be conveniently placed into 65mm*35mm*100mmIn the middle,The suite does not contain this shell (The following is after the assembly of Effect, for reference only.

Shell web site:Http://item.taobao.com/item.htm? Id=42776528106

4. The modification of the original design can not "Transceiver"The defect,At present, the local oscillator frequency is fixed at 7.023MHz when the kit is launched, and the local vibration frequency is 7.023-7.026MHz. when receiving.

The size of PCB is 6cm*6cm.The interface is as follows:

Main indicators
Power: 12V
Receive static current: 20mA 12V
Emission current: 400mA 12V
Emission power: 1.8W 12V
Frequency range: transmitting local oscillator 7.023MHz, receiving local oscillator 7.023-7.026MHz
Work mode: CW
Circuit principle
The receiver part is a typical NE602 plus LM386 direct sequence receiver, where 2SK30 is used for mute during launch.
The transmitter uses the oscillating Circuit of the NE602, then amplifies the buffer with 8050, the 8050 is also the launch key control, the last stage D882 is the C class amplifier, and then sends the LPF to the antenna.Side sound at launch.

Kit description

This kit is not welded well,Shipments are all scattered electronic components，The finished product displayed in our storepictureFor reference only for purchase.